U.S. patent application number 17/221358 was filed with the patent office on 2021-11-04 for nrf2 activator.
The applicant listed for this patent is BIOGEN MA INC.. Invention is credited to Andrew George Capacci, TeYu Chen, Istvan Enyedy, John H. Jones, Edward Yin Shiang Lin, Brian Stuart Lucas, Kurt D. van Vloten, Zhili Xin.
Application Number | 20210340107 17/221358 |
Document ID | / |
Family ID | 1000005685172 |
Filed Date | 2021-11-04 |
United States Patent
Application |
20210340107 |
Kind Code |
A1 |
Lucas; Brian Stuart ; et
al. |
November 4, 2021 |
NRF2 ACTIVATOR
Abstract
Provided are compounds of Formula I, or pharmaceutically
acceptable salts thereof, and methods for their use and
production.
Inventors: |
Lucas; Brian Stuart;
(Arlington, MA) ; Lin; Edward Yin Shiang;
(Ashland, MA) ; Capacci; Andrew George;
(Cambridge, MA) ; Xin; Zhili; (Lexington, MA)
; Enyedy; Istvan; (Milton, MA) ; Chen; TeYu;
(Charlestown, MA) ; Jones; John H.; (Framingham,
MA) ; van Vloten; Kurt D.; (Bellingham, MA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BIOGEN MA INC. |
Cambridge |
MA |
US |
|
|
Family ID: |
1000005685172 |
Appl. No.: |
17/221358 |
Filed: |
April 2, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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16473667 |
Jun 26, 2019 |
10968181 |
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PCT/US2017/068455 |
Dec 27, 2017 |
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17221358 |
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62439289 |
Dec 27, 2016 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
C07D 405/06 20130101;
C07D 217/08 20130101; C07D 217/04 20130101; C07D 498/04 20130101;
C07D 401/06 20130101; C07D 217/20 20130101; C07D 405/04 20130101;
C07D 401/04 20130101; C07D 311/74 20130101; C07D 413/06 20130101;
C07D 217/22 20130101; C07D 223/14 20130101 |
International
Class: |
C07D 217/04 20060101
C07D217/04; C07D 217/08 20060101 C07D217/08; C07D 217/20 20060101
C07D217/20; C07D 217/22 20060101 C07D217/22; C07D 223/14 20060101
C07D223/14; C07D 311/74 20060101 C07D311/74; C07D 401/04 20060101
C07D401/04; C07D 401/06 20060101 C07D401/06; C07D 405/04 20060101
C07D405/04; C07D 405/06 20060101 C07D405/06; C07D 413/06 20060101
C07D413/06; C07D 498/04 20060101 C07D498/04 |
Claims
1. (canceled)
2. A compound represented by Formula I: ##STR00185## or a
pharmaceutically acceptable salt thereof, wherein R.sup.1 is --CN,
--C(O)R.sup.a or C.sub.1-8alkyl substituted with one or more
fluorine atoms; R.sup.a is H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --NR.sup.13OR.sup.13,
--NR.sup.13S(O).sub.2R.sup.13, --NR.sup.13C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13 or
--N(R.sup.13)C(O)N(R.sup.13).sub.2, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21; R.sup.2 is H, halo, --NO.sub.2, --CN,
--N.sub.3, C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a
3 to 12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; R.sup.3a is H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; and R.sup.3b is
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; or R.sup.3a and
R.sup.3b are taken together and are C.sub.2-12alkylene,
C.sub.2-12alkenylene or C.sub.2-12alkynylene; R.sup.4 is H, halo,
--NO.sub.2, --CN, --N.sub.3, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --C(O)R.sup.13, --C(S)R.sup.13,
--C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13, --C(S)OR.sup.13,
--SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; "" is either a
single bond or a double bond, wherein when "" is a double bond,
then R.sup.5 is absent; and when "" is a single bond, then R.sup.5
is H, halo, --NO.sub.2, --CN, --N.sub.3, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --C(O)R.sup.13,
--C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13,
--C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; R.sup.6, in each
occurrence, is independently halo, --NO.sub.2, --CN, --N.sub.3,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3; or two R.sup.6
attached to the same ring carbon to form an oxo, .dbd.NR.sup.14 or
C.sub.1-12alkylidene, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
3 to 12-membered heterocyclyl and C.sub.1-12alkylidene are each
optionally substituted with one or more R.sup.21; X is NR.sup.b or
O; R.sup.b is H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --C(O)R.sup.c, --C(O)OR.sup.c, --C(O)
NR.sup.cR.sup.c, --S(O).sub.2R.sup.c, --S(O).sub.2OR.sup.c or
--S(O).sub.2NR.sup.cR.sup.c, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21; R.sup.c, in each occurrence, is
independently selected from H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl and a 3 to
12-membered heterocyclyl, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21; R.sup.11, in each occurrence, is
independently selected from H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, C.sub.1-12acyl and --Si(R.sup.13).sub.3,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
3 to 12-membered carbocyclyl, 3 to 12-membered heterocyclyl and
C.sub.1-12acyl are each optionally substituted with one or more
R.sup.21; R.sup.12, in each occurrence, is independently selected
from H, C.sub.1-12alkyl, C.sub.1-12alkoxy, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl and --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.1-12alkoxy, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl and 3 to
12-membered heterocyclyl are each optionally substituted with one
or more R.sup.21; R.sup.13, in each occurrence, is independently
selected from H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl and a 3 to
12-membered heterocyclyl, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl
and 3 to 12-membered heterocyclyl are optionally substituted with
one or more R.sup.21; R.sup.14, in each occurrence, is
independently selected from H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl and C.sub.1-12acyl, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl, 3 to 12-membered heterocyclyl and
C.sub.1-12acyl are each optionally substituted with one or more
R.sup.21; R.sup.21, in each occurrence, is independently selected
from halo, --OH, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, C.sub.1-12alkoxy, a 3 to 12-membered carbocyclyl
and a 3 to 12-membered heterocyclyl, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, C.sub.1-12alkoxy, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with 1 to 3 groups selected from halo, --OH
and C.sub.1-4alkoxy; n is 0 or an integer from 1 to 8; p is 1 or 2;
and q is 1 or 2, provided that the sum of p and q is not 4.
3. (canceled)
7. The compound of claim 2, wherein the compound is represented by
##STR00186## or a pharmaceutically acceptable salt thereof.
8. (canceled)
12. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.b is H, C.sub.1-12alkyl, a 6 to 12-membered
aryl, a 3-12-membered heterocyclyl, --C(O)R.sup.c, --C(O)OR.sup.c,
--C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c, --S(O).sub.2OR.sup.c or
--S(O).sub.2NR.sup.cR.sup.c, wherein R.sup.c, in each occurrence,
is independently H, C.sub.1-6alkyl, a 3 to 8-membered cycloalkyl, a
3 to 8-membered heterocyclyl or a 6 to 12-membered aryl, wherein
the alkyl, cycloalkyl, heterocyclyl and aryl, in each occurrence,
in R.sup.b or R.sup.c are optionally substituted with 1 to 3 groups
selected from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl
and a 5 to 12-membered heteroaryl, wherein the heterocyclyl and
heteroaryl each comprise 1 to 3 heteroatoms, wherein the
heteroatoms are selected from the group consisting of N, S and
O.
13. (canceled)
21. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.1 is --CN, --CF.sub.3 or --C(O)R.sup.a.
22. (canceled)
25. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.2 is H, --OH, halo, C.sub.1-12alkyl or
C.sub.1-12alkoxy, wherein the alkyl and alkoxy are each optionally
substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl.
26. (canceled)
30. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.3a is C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --C(O)R.sup.13, --C(O)OR.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --N(R.sup.12).sub.2,
--N(R.sup.13)OR.sup.13, --N(R.sup.13)S(O).sub.2R.sup.13,
--N(R.sup.13)C(O)R.sup.13, --N(R.sup.13)N(R.sup.13).sub.2,
--N(R.sup.13)C(O)OR.sup.13, --N(R.sup.13)C(O)N(R.sup.13).sub.2,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2 or
--S(O).sub.2N(R.sup.13).sub.2, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21.
31. (canceled)
34. The compound of claim 30, or a pharmaceutically acceptable salt
thereof, wherein R.sup.3a and R.sup.3b are each methyl.
35. (canceled)
37. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.4 is H, --OH, halo, C.sub.1-12alkyl,
C.sub.1-12alkoxy or 6 to 12-membered aryl, wherein the alkyl,
alkoxy and aryl are each optionally substituted with 1 to 3 groups
selected from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl
and a 5 to 12-membered heteroaryl.
38. (canceled)
39. The compound of claim 37, or a pharmaceutically acceptable salt
thereof, wherein R.sup.4 is C.sub.1-4alkyl or phenyl.
40. (canceled)
45. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein n is 2; and two R.sup.6 are attached to the same
ring carbon to form an oxo, .dbd.NR.sup.14 or
C.sub.1-12alkylidene.
46. (canceled)
56. The compound of claim 2, or a pharmaceutically acceptable salt
thereof, wherein R.sup.1 is --CN, --CF.sub.3 or --C(O)R.sup.a;
R.sup.2 is H, --OH, halo, C.sub.1-12alkyl or C.sub.1-12alkoxy,
wherein the alkyl and alkoxy are each optionally substituted with 1
to 3 groups selected from halo, --OH, C.sub.1-4alkoxy, a 6 to
12-membered aryl and a 5 to 12-membered heteroaryl; R.sup.3a is H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
--C(O)R.sup.13, --OR.sup.11, --N(R.sup.12).sub.2 or
--N(R.sup.13)C(O)R.sup.13; and R.sup.3b is C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, --C(O)R.sup.13, --OR.sup.11,
--N(R.sup.12).sub.2 or --N(R.sup.13)C(O)R.sup.13, wherein R.sup.11
to R.sup.13 are each independently H or C.sub.1-4alkyl; or R.sup.3a
and R.sup.3b taken together with the carbon, to which they are both
attached to, form a C.sub.3-8 membered non-aromatic ring; R.sup.4
is H, --OH, halo, C.sub.1-12alkyl, C.sub.1-12alkoxy or 6 to
12-membered aryl, wherein the alkyl, alkoxy and aryl are each
optionally substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl; "" is a double bond; R.sup.b is H, C.sub.1-12alkyl, a 6
to 12-membered aryl, a 3-12-membered heterocyclyl, --C(O)R.sup.c,
--C(O)OR.sup.c, --C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c,
--S(O).sub.2OR.sup.c or --S(O).sub.2NR.sup.cR.sup.c, wherein
R.sup.c, in each occurrence, is independently H, C.sub.1-6alkyl, a
3 to 8-membered cycloalkyl, a 3 to 8-membered heterocyclyl or a 6
to 12-membered aryl, wherein the alkyl, cycloalkyl, heterocyclyl
and aryl, in each occurrence, in R.sup.b or R.sup.c are optionally
substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl, wherein the heterocyclyl and heteroaryl each comprise 1
to 3 heteroatoms, wherein the heteroatoms are selected from the
group consisting of N, S and O; and n is 0.
57. (canceled)
68. The compound of claim 67, wherein the compound is represented
by Formula XIII: ##STR00187## or a pharmaceutically acceptable salt
thereof.
69. The compound of claim 61, wherein the compound is represented
by Formula: ##STR00188## or a pharmaceutically acceptable salt
thereof.
71. A pharmaceutical composition comprising at least one compound
of claim 2, or a pharmaceutically acceptable salt thereof, and at
least one pharmaceutically acceptable excipient.
72. (canceled)
73. A method of treating a disease caused by oxidative stress in a
subject in need thereof, the method comprising administering to the
subject a therapeutically effective amount of a compound according
to claim 2, or a pharmaceutically acceptable salt thereof, thereby
treating the disease in the subject.
74. A method for treating a disorder in a subject in need thereof,
wherein the disorder is selected from the group consisting of a
neurodegenerative disease, inflammation/an inflammatory disease, an
autoimmune disease, an ischemic fibrotic disease, a cancer,
premature aging, a cardiovascular disease, a liver disease, a
hemoglobinopathy, thalassemia (e.g., beta-thalassemia) and a
metabolic disorder, the method comprising administering to the
subject a therapeutically effective amount of a compound according
to claim 2, or a pharmaceutically acceptable salt thereof, thereby
treating the disorder in the subject.
75. A method for treating sickle cell disease or thalassemia (e.g.,
beta-thalassemia) in a subject in need thereof, the method
comprising administering to the subject a therapeutically effective
amount of a compound according to claim 2, or a pharmaceutically
acceptable salt thereof, thereby treating sickle cell disease or
thalassemia (e.g., beta-thalassemia).
77. A method for treating a neurodegenerative disorder in a subject
in need thereof, wherein the neurodegenerative disorder is selected
from the group consisting of Alzheimer's disease, Parkinson's
disease, Huntington disease, amyotrophic lateral sclerosis, diffuse
Lewy body disease, chorea-acanthocytosis, primary lateral
sclerosis, multiple sclerosis, frontotemporal dementia,
Friedreich's ataxia and epilepsy, the method comprising
administering to the subject a therapeutically effective amount of
a compound according to claim 2, or a pharmaceutically acceptable
salt thereof, thereby treating the neurodegenerative disorder.
79. A compound, which is
(8aR)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbonitrile
and is represented by the following formula: ##STR00189## or a
pharmaceutically acceptable salt thereof.
80. A compound, which is
(8aS)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbonitrile
represented by the following formula: ##STR00190## or a
pharmaceutically acceptable salt thereof.
Description
RELATED APPLICATION INFORMATION
[0001] This application is a continuation of U.S. patent
application Ser. No. 16/473,667, filed Jun. 26, 2019, now U.S. Pat.
No. 10,968,181, which is a 371 of International Application No.:
PCT/US2017/068455, filed Dec. 27, 2017, which claims priority to
U.S. Provisional Application No. 62/439,289, filed Dec. 27, 2016.
The contents of this application are incorporated herein by
reference.
[0002] Nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2)
belongs to the Cap `N` Collar (CNC) family of transcription factors
and contains a conserved basic leucine zipper (bZIP) structure. The
main function of Nrf2 is to activate the cellular antioxidant
response by inducing the production of proteins that are able to
combat the harmful effects of oxidative stress.
[0003] Activation of the Nrf2 pathway to treat diseases caused by
oxidative stress, such as a neurodegenerative disease, inflammation
and/or an inflammatory disease, an autoimmune disease, an ischemic
fibrotic disease, a cancer, premature aging, a cardiovascular
disease, a liver disease, a hemoglobinopathy and a metabolic
disorder, is being studied.
[0004] Moreover, Nrf2 activation has been shown to upregulates
fetal hemoglobin which can ameliorates symptoms of hemoglobinopathy
such as sickle cell disease and thalassemia (e.g.
beta-thalassemia).
[0005] Therefore, a need exists for Nrf2 activators to treat these
diseases.
SUMMARY
[0006] A first embodiment of the invention is a compound of Formula
I:
##STR00001##
or a pharmaceutically acceptable salt thereof, wherein [0007]
R.sup.1 is --CN, --C(O)R.sup.a, CH.sub.3S(O).sub.2-- or
C.sub.1-8alkyl substituted with one or more fluorine atoms; [0008]
R.sup.a is H, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --NR.sup.13OR.sup.13,
--NR.sup.13S(O).sub.2R.sup.13, --NR.sup.13C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13 or
--N(R.sup.13)C(O)N(R.sup.13).sub.2, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21; [0009] R.sup.2 is H, halo, --NO.sub.2,
--CN, --N.sub.3, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --C(O)R.sup.13, --C(S)R.sup.13,
--C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13, --C(S)OR.sup.13,
--SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0010] R.sup.3a
is H, C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; and [0011]
R.sup.3b is C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
a 3 to 12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; or [0012]
R.sup.3a and R.sup.3b are taken together and are
C.sub.2-12alkylene, C.sub.2-12alkenylene or C.sub.2-12alkynylene;
wherein the C.sub.2-12alkylene, C.sub.2-12alkenylene,
C.sub.2-12alkynylene and 3-6-membered carbocyclyl are each
optionally substituted with one or more R.sup.21; [0013] R.sup.4 is
H, halo, --NO.sub.2, --CN, --N.sub.3, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --C(O)R.sup.13,
--C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13,
--C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0014] "" is
either a single bond or a double bond, wherein when "" is a double
bond, then R.sup.5 is absent; and when "" is a single bond, then
[0015] R.sup.5 is H, halo, --NO.sub.2, --CN, --N.sub.3,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; or [0016] R.sup.5
and R.sup.3b are taken together with the carbons to which they each
are attached form a 3-6-membered carbocyclyl, wherein the
3-6-membered carbocyclyl is optionally substituted with one or more
R.sup.21; [0017] R.sup.6, in each occurrence, is independently
halo, --NO.sub.2, --CN, --N.sub.3, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --C(O)R.sup.13,
--C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13,
--C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3; or two R.sup.6
attached to the same ring carbon to form an oxo, .dbd.NR.sup.14 or
C.sub.1-12alkylidene, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
3 to 12-membered heterocyclyl and C.sub.1-12alkylidene are each
optionally substituted with one or more R.sup.21; [0018] X is
NR.sup.b or O; [0019] R.sup.b is H, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --C(O)R.sup.c,
--C(O)OR.sup.c, --C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c,
--S(O).sub.2OR.sup.c or --S(O).sub.2NR.sup.cR.sup.c, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0020] R.sup.c,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl and a 3 to 12-membered heterocyclyl,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
3 to 12-membered carbocyclyl and 3 to 12-membered heterocyclyl are
each optionally substituted with one or more R.sup.21; [0021]
R.sup.11, in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
C.sub.1-12acyl and --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl, 3 to 12-membered heterocyclyl, and
C.sub.1-12acyl are each optionally substituted with one or more
R.sup.21; [0022] R.sup.12, in each occurrence, is independently
selected from H, C.sub.1-12alkyl, C.sub.1-12alkoxy,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl and
--Si(R.sup.13).sub.3, wherein the C.sub.1-12alkyl,
C.sub.1-12alkoxy, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0023] R.sup.13,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, and a 3 to 12-membered heterocyclyl,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
3 to 12-membered carbocyclyl and 3 to 12-membered heterocyclyl are
optionally substituted with one or more R.sup.21; [0024] R.sup.14,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl and
C.sub.1-12acyl, wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl, 3 to 12-membered
heterocyclyl and C.sub.1-12acyl are each optionally substituted
with one or more R.sup.21; [0025] R.sup.21, in each occurrence, is
independently selected from halo, --OH, --S(O).sub.2R.sup.16,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
C.sub.1-12alkoxy, a 3 to 12-membered carbocyclyl and a 3 to
12-membered heterocyclyl, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, C.sub.1-12alkoxy, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkyl and C.sub.1-4alkoxy; [0026] R.sup.16, in each
occurrence, is independently selected from H or C.sub.1-12alkyl;
[0027] n is 0 or an integer from 1 to 8; [0028] p is 0, 1 or 2; and
[0029] q is 1, 2 or 3,
[0030] provided that the sum of p and q is not 4 or 5.
[0031] An alternative first embodiment of the invention is a
compound of Formula I:
##STR00002##
or a pharmaceutically acceptable salt thereof, wherein [0032]
R.sup.1 is --CN, --C(O)R.sup.a or C.sub.1-8alkyl substituted with
one or more fluorine atoms; [0033] R.sup.a is H, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --OR.sup.11,
--SR.sup.14, --N(R.sup.12).sub.2, --NR.sup.13OR.sup.13,
--NR.sup.13S(O).sub.2R.sup.13, --NR.sup.13C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13 or
--N(R.sup.13)C(O)N(R.sup.13).sub.2, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
and 3 to 12-membered heterocyclyl are each optionally substituted
with one or more R.sup.21; [0034] R.sup.2 is H, halo, --NO.sub.2,
--CN, --N.sub.3, C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, a 3 to 12-membered carbocyclyl, a 3 to
12-membered heterocyclyl, --C(O)R.sup.13, --C(S)R.sup.13,
--C(O)OR.sup.13, --C(S)SR.sup.13, --C(O)SR.sup.13, --C(S)OR.sup.13,
--SC(O)R.sup.13, --OC(S)R.sup.13, --SC(S)R.sup.13,
--C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0035] R.sup.3a
is H, C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; and [0036]
R.sup.3b is C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
a 3 to 12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; or [0037]
R.sup.3a and R.sup.3b are taken together and are
C.sub.2-12alkylene, C.sub.2-12alkenylene or C.sub.2-12alkynylene;
[0038] R.sup.4 is H, halo, --NO.sub.2, --CN, --N.sub.3,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0039] "" is
either a single bond or a double bond, wherein when "" is a double
bond, then R.sup.5 is absent; and when "" is a single bond, then
[0040] R.sup.5 is H, halo, --NO.sub.2, --CN, --N.sub.3,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0041] R.sup.6,
in each occurrence, is independently halo, --NO.sub.2, --CN,
--N.sub.3, C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a
3 to 12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(S)R.sup.13, --C(O)OR.sup.13, --C(S)SR.sup.13,
--C(O)SR.sup.13, --C(S)OR.sup.13, --SC(O)R.sup.13, --OC(S)R.sup.13,
--SC(S)R.sup.13, --C(O)N(R.sup.13).sub.2, --OR.sup.11, --SR.sup.14,
--N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O).sub.2R.sup.13,
--S(O)R.sup.13, --S(O)N(R.sup.13).sub.2,
--S(O).sub.2N(R.sup.13).sub.2, --N.sup.+(R.sup.13).sub.3,
--S.sup.+(R.sup.13).sub.2 or --Si(R.sup.13).sub.3; or two R.sup.6
attached to the same ring carbon to form an oxo, .dbd.NR.sup.14 or
C.sub.1-12alkylidene, wherein the C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl,
3 to 12-membered heterocyclyl and C.sub.1-12alkylidene are each
optionally substituted with one or more R.sup.21; [0042] X is
NR.sup.b or O; [0043] R.sup.b is H, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl, --C(O)R.sup.c,
--C(O)OR.sup.c, --C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c,
--S(O).sub.2OR.sup.c or --S(O).sub.2NR.sup.cR.sup.c, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0044] R.sup.c,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl and a 3 to 12-membered heterocyclyl,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
3 to 12-membered carbocyclyl and 3 to 12-membered heterocyclyl are
each optionally substituted with one or more R.sup.21; [0045]
R.sup.11, in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
C.sub.1-12acyl and --Si(R.sup.13).sub.3, wherein the
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl, 3 to 12-membered heterocyclyl, and
C.sub.1-12acyl are each optionally substituted with one or more
R.sup.21; [0046] R.sup.12, in each occurrence, is independently
selected from H, C.sub.1-12alkyl, C.sub.1-12alkoxy,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to 12-membered
carbocyclyl, a 3 to 12-membered heterocyclyl and
--Si(R.sup.13).sub.3, wherein the C.sub.1-12alkyl,
C.sub.1-12alkoxy, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; [0047] R.sup.13,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, and a 3 to 12-membered heterocyclyl,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
3 to 12-membered carbocyclyl and 3 to 12-membered heterocyclyl are
optionally substituted with one or more R.sup.21; [0048] R.sup.14,
in each occurrence, is independently selected from H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 3 to
12-membered carbocyclyl, a 3 to 12-membered heterocyclyl and
C.sub.1-12acyl, wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl,
C.sub.2-12alkynyl, 3 to 12-membered carbocyclyl, 3 to 12-membered
heterocyclyl and C.sub.1-12acyl are each optionally substituted
with one or more R.sup.21; [0049] R.sup.21, in each occurrence, is
independently selected from halo, --OH, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, C.sub.1-12alkoxy, a 3 to
12-membered carbocyclyl and a 3 to 12-membered heterocyclyl,
wherein the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
C.sub.1-12alkoxy, 3 to 12-membered carbocyclyl and 3 to 12-membered
heterocyclyl are each optionally substituted with 1 to 3 groups
selected from halo, --OH and C.sub.1-4alkoxy; [0050] n is 0 or an
integer from 1 to 8; [0051] p is 1 or 2; and [0052] q is 1 or 2,
provided that the sum of p and q is not 4.
[0053] Also provided is a pharmaceutical composition comprising at
least one compound described herein, or a pharmaceutically
acceptable salt thereof, and at least one pharmaceutically
acceptable excipient.
[0054] Also provided is a method for activating Nrf2 in a subject
in need thereof, the method comprising administering to the subject
a therapeutically effective amount of a compound described herein,
or a pharmaceutically acceptable salt thereof, thereby activating
Nrf2 in the subject.
[0055] Also provided is a method for treating a disease caused by
oxidative stress in a subject in need thereof, the method
comprising administering to the subject a therapeutically effective
amount of a compound according to any one of described herein, or a
pharmaceutically acceptable salt thereof, thereby treating the
disease in the subject.
[0056] Also provided is a method for treating a neurodegenerative
disease, inflammation and/or an inflammatory disease, an autoimmune
disease, an ischemic fibrotic disease, a cancer, premature aging, a
cardiovascular disease, a liver disease, a hemoglobinopathy or a
metabolic disorder in a subject in need thereof, the method
comprising administering to the subject a therapeutically effective
amount of a compound according to any one of described herein, or a
pharmaceutically acceptable salt thereof, thereby treating the
neurodegenerative diseases, inflammation and/or inflammatory
disease, autoimmune disease, ischemic fibrotic disease, cancer,
premature aging, cardiovascular disease, liver disease,
hemoglobinopathy or metabolic disorder in the subject.
[0057] Other features or advantages will be apparent from the
following detailed description of several embodiments, and also
from the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0058] FIGS. 1A to 1D show transcription of GCLC (FIG. 1A), HMOX1
(FIG. 1B), OSGIN1 (FIG. 1C) and NQO1 (FIG. 1D) in human astrocytes
treated with increasing concentrations of Compound 12-Ent1 for 20
hours. The x-axis represents log (molar concentrations of compound
12-Ent1). Values shown are mean.+-.S.E.M. n=4-5 experiments.
[0059] FIG. 2 shows levels of intracellular glutathione Compound
12-Ent1 in human astrocytes treated with increasing concentrations
of Compound 12-Ent1 for 20 hours. The x-axis represents log (molar
concentrations of compound 12-Ent1). Values shown are
mean.+-.S.E.M. n=5-6 experiments.
[0060] FIG. 3 shows levels of protection of astrocytes by
increasing concentrations of Compound 12-Ent1 from oxidative
stress-induced cell death caused by 25 .mu.M sodium arsenite. The
compound was added to human astrocytes 20 hrs prior to addition of
arsenite and the astrocytes were further incubated for 22 hours
after addition of arsenite. The x-axis represents log (molar
concentrations of compound 12-Ent1). This figure shows results from
3 separate experiments.
[0061] FIGS. 4A to 4D show the expression of Akr1b8 (FIG. 4A), Nqo1
(FIG. 4B), Hmox1 (FIG. 4C) and Osgin1 (FIG. 4D) in kidney, isolated
from mice with the wild-type Nrf2 or Nrf2-/-, at 2 hours and 6
hours after being treated with Compound 12-Ent1 (25 mg/kg) or a
vehicle.
[0062] FIGS. 5A to 5D show the expression of Akr1b8 (FIG. 5A), Nqo1
(FIG. 5B), Hmox1 (FIG. 5C) and Osgin1 (FIG. 5D) in Jejunum,
isolated from mice with the wild-type Nrf2 or Nrf2-/-, at 2 hours
and 6 hours after being treated with Compound 12-Ent1 (25 mg/kg) or
a vehicle.
[0063] FIGS. 6A to 6D show the expression of Akr1b8 (FIG. 6A), Nqo1
(FIG. 6B), Hmox1 (FIG. 6C) and Osgin1 (FIG. 6D) in spleen, isolated
from mice with the wild-type Nrf2 or Nrf2-/-, at 2 hours and 6
hours after being treated with Compound 12-Ent1 (25 mg/kg) or a
vehicle.
[0064] FIGS. 7A to 7D show the expression of Akr1b8 (FIG. 7A), Nqo1
(FIG. 7B), Hmox1 (FIG. 7C) and Osgin1 (FIG. 7D) in brain, isolated
from mice with the wild-type Nrf2 or Nrf2-/-, at 2 hours and 6
hours after being treated with Compound 12-Ent1 (25 mg/kg) or a
vehicle.
[0065] FIG. 8 shows the levels of HbF protein in cultured HUDEP
cells treated with increasing concentrations of 12-Ent1, in the two
separate experiments.
[0066] FIGS. 9A to 9D each show a time course and dose response of
compound 12-Ent1 for induction of 7-globin gene in the spleen of
townes mice, including a single dose and two doses of compound
12-Ent1, i.e., a single dose of 10 mg/kg (FIG. 9A), 25 mg/kg (FIG.
9B) or 50 mg/kg (FIG. 9D), and two doses of 25 mg/kg (FIG. 9C). The
two doses were administered 12 hours apart.
[0067] FIGS. 10A to 10C each show a time course and dose response
of compound 12-Ent1 for induction of NQO1 in the spleen of townes
mice, including a single dose and two doses of compound 12-Ent1,
i.e., a single dose of 10 mg/kg (FIG. 10A) or 50 mg/kg (FIG. 10C),
and two doses of 25 mg/kg (FIG. 10B). The two doses were
administered 12 hours apart.
[0068] FIG. 11 is a bar graph showing dose responses of compound
12-Ent1 for induction of .gamma.-globin gene in the spleen of
townes mice at the 24 hour time point, including to a single dose
and two doses of compound 12-Ent1, i.e., a single dose of 10 mg/kg,
25 mg/kg (as noted with QD) or 50 mg/kg, and two doses of 25 mg/kg
(as noted with BID). The two doses were administered 12 hours
apart.
[0069] FIG. 12 is a bar graph showing dose responses of compound
12-Ent1 for induction of NQO1 in the spleen of townes mice at the 6
hour time point, including a single dose and two doses of compound
12-Ent1, i.e., a sing1 dose of 10 mg/kg or 50 mg/kg, and two doses
of 25 mg/kg (as noted with BID). The two doses were administered 12
hours apart.
DETAILED DESCRIPTION
[0070] The compounds or pharmaceutically acceptable salts thereof
as described herein can be Nrf2 activators.
[0071] In a second embodiment of the invention, the compound is
represented by formula I, or a pharmaceutically acceptable salt
thereof, wherein R.sup.a is H, C.sub.1-4alkyl (which is optionally
substituted with 1 to 4 halo groups), --SH, --OR.sup.11,
--N(R.sup.12).sub.2, --NR.sup.13OR.sup.13,
--NR.sup.13S(O).sub.2R.sup.13, --NR.sup.13C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13 or
--N(R.sup.13)C(O)N(R.sup.13).sub.2, wherein R.sup.11 to R.sup.13,
in each occurrence, are independently H or C.sub.1-6alkyl
optionally substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl; and wherein the values of the other variables are as
defined for the first or alternative first embodiment. Preferably,
R.sup.a is H, C.sub.1-4alkyl (which is optionally substituted with
1 to 4 halo groups), --OR.sup.11 or --N(R.sup.12).sub.2, wherein
R.sup.11 and R.sup.12, in each occurrence, are independently H or
C.sub.1-4alkyl optionally substituted with 1 to 3 groups selected
from halo, --OH or C.sub.1-4alkoxy. More preferably, R.sup.a is H
or C.sub.1-4alkyl.
[0072] In a third embodiment of the invention, the compound is
represented by Formula II:
##STR00003##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0073] In a fourth embodiment of the invention, the compound is
represented by Formula II(A):
##STR00004##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0074] In a fifth embodiment of the invention, the compound is
represented by Formula II(B):
##STR00005##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0075] In a sixth embodiment of the invention, the compound is
represented by Formula III:
##STR00006##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0076] In a seventh embodiment of the invention, the compound is
represented by Formula III(A):
##STR00007##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0077] In an eighth embodiment of the invention, the compound is
represented by Formula III(B):
##STR00008##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0078] In a ninth embodiment of the invention, the compound is
represented by the following formula:
##STR00009##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0079] In a tenth embodiment of the invention, the compound is
represented by the following formula:
##STR00010##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0080] In an eleventh embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A) or V(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.b is H, C.sub.1-12alkyl, a 6 to
12-membered aryl, a 3-12-membered heterocyclyl, --C(O)R.sup.c,
--C(O)OR.sup.c, --C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c,
--S(O).sub.2OR.sup.c or --S(O).sub.2NR.sup.cR.sup.c, wherein
R.sup.c is H, C.sub.1-6alkyl, a 3 to 8-membered cycloalkyl, a 3 to
8-membered heterocyclyl or a 6 to 12-membered aryl, wherein the
alkyl, cycloalkyl, heterocyclyl and aryl, in each occurrence, in
R.sup.b or R.sup.c are optionally substituted with 1 to 3 groups
selected from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl
and a 5 to 12-membered heteroaryl wherein the heterocyclyl and
heteroaryl each comprise 1 to 3 heteroatoms, wherein the
heteroatoms are selected from the group consisting of N, S and O;
and wherein the values of the other variables are as defined for
the first, alternative first and/or second embodiments.
[0081] In a twelfth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A) or V(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.b is H, C.sub.1-6alkyl, phenyl,
oxetanyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyridazinyl,
pyrazinyl or pyrimidyl, wherein the C.sub.1-6alkyl is optionally
substituted with 1 to 3 halo, phenyl, pyrrolyl, pyrazolyl,
imidazolyl, pyridinyl, pyridazinyl, pyrazinyl or pyrimidyl; and
wherein the values of the other variables are as defined for the
first, alternative first and/or second embodiments.
[0082] In a thirteenth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A) or V(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.b is --C(O)R.sup.c, --S(O).sub.2R.sup.c
or --C(O)NR.sup.cR.sup.c; and R.sup.c, in each occurrence, is
independently H, C.sub.1-6alkyl, cyclopropyl, cyclobutyl,
cyclopentyl, cyclohexyl, phenyl, oxetanyl, pyrrolyl, pyrazolyl,
imidazolyl, pyridinyl, pyridazinyl, pyrazinyl or pyrimidyl, wherein
the cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl,
benzyl, oxetanyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl is optionally substituted by 1
to 3 C.sub.1-4alkyl groups; and the C.sub.1-6alkyl is substituted
with halo, phenyl or C.sub.1-4alkoxy; and wherein the values of the
other variables are as defined for the first, alternative first
and/or second embodiments.
[0083] In a fourteenth embodiment of the invention, the compound is
represented by Formula VI:
##STR00011##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0084] In a fifteenth embodiment of the invention, the compound is
represented by Formula VI(A):
##STR00012##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0085] In a sixteenth embodiment of the invention, the compound is
represented by Formula VI(B):
##STR00013##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0086] In a seventeenth embodiment of the invention, the compound
is represented by Formula VII:
##STR00014##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0087] In an eighteenth embodiment of the invention, the compound
is represented by Formula VII(A):
##STR00015##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0088] In a nineteenth embodiment of the invention, the compound is
represented by Formula VII(B):
##STR00016##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0089] In a twentieth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --CN, --CF.sub.3 or --C(O)R.sup.a; and wherein the
values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth and/or thirteenth
embodiments.
[0090] In a twenty-first embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --CN; and wherein the values of the other variables are
as defined for the first, alternative first, eleventh, twelfth
and/or thirteenth embodiments.
[0091] In a twenty-second embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --CF.sub.3; and wherein the values of the other
variables are as defined for the first, alternative first,
eleventh, twelfth and/or thirteenth embodiments.
[0092] In a twenty-third embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --C(O)R.sup.a; and wherein the values of the other
variables are as defined for the first, alternative first, second,
eleventh, twelfth and/or thirteenth embodiments.
[0093] In a twenty-fourth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.2 is H, --OH, halo, C.sub.1-12alkyl or C.sub.1-12alkoxy,
wherein the alkyl and alkoxy are each optionally substituted with 1
to 3 groups selected from halo, --OH, C.sub.1-4alkoxy, a 6 to
12-membered aryl and a 5 to 12-membered heteroaryl; and wherein the
values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second and/or twenty-third
embodiments.
[0094] In a twenty-fifth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.2 is H or C.sub.1-4alkyl; and wherein the values of the other
variables are as defined for the first, alternative first, second,
eleventh, twelfth, thirteenth, twentieth, twenty-first,
twenty-second and/or twenty-third embodiments.
[0095] In a twenty-sixth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.2 is H; and wherein the values of the other variables are as
defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second and/or
twenty-third embodiments.
[0096] In a twenty-seventh embodiment of the invention, the
compound is represented by formula I, II, II(A), II(B), III,
III(A), III(B), IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B),
VII, VII(A) or VII(B), or a pharmaceutically acceptable salt
thereof, wherein R.sup.3a is H; and R.sup.3b is C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, a 6 to 12-membered aryl, a 5
to 12-membered heteroaryl, --C(O)R.sup.13, --OR.sup.11,
--N(R.sup.12).sub.2 or --N(R.sup.13)C(O)R.sup.13, wherein R.sup.11,
in each occurrence, is independently H, C.sub.1-12alkyl,
C.sub.1-12acyl, a 6 to 12-membered aryl or a 5 to 12-membered
heteroaryl; and R.sup.12 and R.sup.13, in each occurrence, are
independently H, C.sub.1-12alkyl, a 6 to 12-membered aryl or a 5 to
12-membered heteroaryl, wherein the alkyl, alkenyl, alkynyl, aryl,
heteroaryl and acyl, in each occurrence, in R.sup.11, R.sup.12 and
R.sup.13 are optionally substituted with 1 to 3 groups selected
from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5
to 12-membered heteroaryl; and wherein the values of the other
variables are as defined for the first, alternative first, second,
eleventh, twelfth, thirteenth, twentieth, twenty-first,
twenty-second, twenty-third, twenty-fourth, twenty-fifth and/or
twenty-sixth embodiments. In particular, R.sup.3a is H; and
R.sup.3b is C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
--C(O)R.sup.13, --OR.sup.11, --N(R.sup.12).sub.2 or
--N(R.sup.13)C(O)R.sup.13; wherein R.sup.11 to R.sup.13 are each
independently H or C.sub.1-4alkyl.
[0097] In a twenty-eighth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a is C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
a 3 to 12-membered carbocyclyl, a 3 to 12-membered heterocyclyl,
--C(O)R.sup.13, --C(O)OR.sup.13, --C(O)N(R.sup.13).sub.2,
--OR.sup.11, --N(R.sup.12).sub.2, --N(R.sup.13)OR.sup.13,
--N(R.sup.13)S(O).sub.2R.sup.13, --N(R.sup.13)C(O)R.sup.13,
--N(R.sup.13)N(R.sup.13).sub.2, --N(R.sup.13)C(O)OR.sup.13,
--N(R.sup.13)C(O)N(R.sup.13).sub.2, --S(O)R.sup.13,
--S(O)N(R.sup.13).sub.2 or --S(O).sub.2N(R.sup.13).sub.2, wherein
the C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl, 3 to
12-membered carbocyclyl and 3 to 12-membered heterocyclyl are each
optionally substituted with one or more R.sup.21; and wherein the
values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments.
[0098] In a twenty-ninth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a and R.sup.3b are each independently C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, --C(O)R.sup.13, --OR.sup.11,
--N(R.sup.12).sub.2 or --N(R.sup.13)C(O)R.sup.13; and R.sup.11 to
R.sup.13 are each independently H or C.sub.1-4alkyl; and wherein
the values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments.
[0099] In a thirtieth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a and R.sup.3b are each independently C.sub.1-12alkyl; and
wherein the values of the other variables are as defined for the
first, alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments.
[0100] In a thirty-first embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a and R.sup.3b are each independently C.sub.1-4alkyl; and
wherein the values of the other variables are as defined for the
first, alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments.
[0101] In a thirty-second embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a and R.sup.3b are each methyl; and wherein the values of
the other variables are as defined for the first, alternative
first, second, eleventh, twelfth, thirteenth, twentieth,
twenty-first, twenty-second, twenty-third, twenty-fourth,
twenty-fifth and/or twenty-sixth embodiments.
[0102] In a thirty-third embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, R.sup.3a and
R.sup.3b are taken together and are C.sub.2-12alkylene,
C.sub.2-12alkenylene or C.sub.2-12alkynylene; and wherein the
values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments.
[0103] In a thirty-fourth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.3a and R.sup.3b are taken together and are C.sub.2-5alkylene;
and wherein the values of the other variables are as defined for
the first, alternative first, second, eleventh, twelfth,
thirteenth, twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth and/or twenty-sixth embodiments. In a
particular aspect, the C.sub.2-5alkylene is selected from the group
consisting of --CH.sub.2CH.sub.2--, --CH.sub.2CH.sub.2CH.sub.2--,
--CH.sub.2CH(CH.sub.3)--, --CH.sub.2CH.sub.2CH.sub.2CH.sub.2--,
--CH.sub.2CH(CH.sub.3)CH.sub.2--, --CH.sub.2CH.sub.2CH(CH.sub.3)--,
--CH.sub.2C(CH.sub.3).sub.2--,
--CH.sub.2CH.sub.2CH.sub.2CH.sub.2CH.sub.2--,
--CH.sub.2CH.sub.2CH(CH.sub.3)CH.sub.2--,
--CH.sub.2CH.sub.2CH.sub.2CH(CH.sub.3)--,
--CH.sub.2CH.sub.2C(CH.sub.3).sub.2--,
--CH.sub.2C(CH.sub.3).sub.2CH.sub.2-- and
--CH(CH.sub.3)C(CH.sub.3).sub.2--.
[0104] In a thirty-fifth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.4 is H, --OH, halo, C.sub.1-12alkyl, C.sub.1-12alkoxy or 6 to
12-membered aryl, wherein the alkyl, alkoxy and aryl are each
optionally substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl; and wherein the values of the other variables are as
defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third and/or thirty-fourth embodiments.
[0105] In a thirty-sixth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.4 is C.sub.1-6alkyl or phenyl; and wherein the values of the
other variables are as defined for the first, alternative first,
second, eleventh, twelfth, thirteenth, twentieth, twenty-first,
twenty-second, twenty-third, twenty-fourth, twenty-fifth,
twenty-sixth, twenty-seven, twenty-eight, twenty-nine, thirtieth,
thirty-first, thirty-second, thirty-third and/or thirty-fourth
embodiments.
[0106] In a thirty-seventh embodiment of the invention, the
compound is represented by formula I, II, II(A), II(B), III,
III(A), III(B), IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B),
VII, VII(A) or VII(B), or a pharmaceutically acceptable salt
thereof, wherein R.sup.4 is C.sub.1-4alkyl or phenyl; and wherein
the values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth, twenty-sixth, twenty-seven,
twenty-eight, twenty-nine, thirtieth, thirty-first, thirty-second,
thirty-third and/or thirty-fourth embodiments.
[0107] In a thirty-eighth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), IV, IV(A), IV(B), V,
V(A), V(B), VI, VI(A) or VI(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.5 is H, --OH, halo, C.sub.1-12alkyl or
C.sub.1-12alkoxy, wherein the alkyl and alkoxy are each optionally
substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl; and wherein the values of the other variables are as
defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth and/or thirty-seventh embodiments.
[0108] In a thirty-ninth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), IV, IV(A), IV(B), V,
V(A), V(B), VI, VI(A) or VI(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.5 is H or C.sub.1-6alkyl; and wherein
the values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth, twenty-sixth, twenty-seven,
twenty-eight, twenty-nine, thirtieth, thirty-first, thirty-second,
thirty-third, thirty-fourth, thirty-fifth, thirty-sixth and/or
thirty-seventh embodiments.
[0109] In a fortieth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), IV, IV(A), IV(B), V,
V(A), V(B), VI, VI(A) or VI(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.5 is H; and wherein the values of the
other variables are as defined for the first, alternative first,
second, eleventh, twelfth, thirteenth, twentieth, twenty-first,
twenty-second, twenty-third, twenty-fourth, twenty-fifth,
twenty-sixth, twenty-seven, twenty-eight, twenty-nine, thirtieth,
thirty-first, thirty-second, thirty-third, thirty-fourth,
thirty-fifth, thirty-sixth and/or thirty-seventh embodiments.
[0110] In a forty-first embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.6 is --OH, halo, C.sub.1-12alkyl or C.sub.1-12alkoxy, wherein
the alkyl and alkoxy are each optionally substituted with 1 to 3
groups selected from halo, --OH, C.sub.1-4alkoxy, a 6 to
12-membered aryl and a 5 to 12-membered heteroaryl; and wherein the
values of the other variables are as defined for the first,
alternative first, second, eleventh, twelfth, thirteenth,
twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth, twenty-sixth, twenty-seven,
twenty-eight, twenty-nine, thirtieth, thirty-first, thirty-second,
thirty-third, thirty-fourth, thirty-fifth, thirty-sixth,
thirty-seventh, thirty-eighth, thirty-ninth and/or fortieth
embodiments. In a particular embodiment, R.sup.6 is methyl.
[0111] In a forty-second embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein n is
1 or 2; and wherein the values of the other variables are as
defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth, thirty-seventh, thirty-eighth, thirty-ninth, fortieth
and/or forty-first embodiments.
[0112] In a forty-third embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein n is
2; and two R.sup.6 are attached to the same ring carbon to form an
oxo, .dbd.NR.sup.14 or C.sub.1-12alkylidene; and wherein the values
of the other variables are as defined for the first, alternative
first, second, eleventh, twelfth, thirteenth, twentieth,
twenty-first, twenty-second, twenty-third, twenty-fourth,
twenty-fifth, twenty-sixth, twenty-seven, twenty-eight,
twenty-nine, thirtieth, thirty-first, thirty-second, thirty-third,
thirty-fourth, thirty-fifth, thirty-sixth, thirty-seventh,
thirty-eighth, thirty-ninth and/or fortieth embodiments.
[0113] In a forty-fourth embodiment of the invention, the compound
is represented by Formula VIII(A):
##STR00017##
or a pharmaceutically acceptable salt thereof, wherein Z is O,
NR.sup.22 or C(R.sup.22).sub.2, wherein R.sup.22, in each
occurrence, is independently H or a C.sub.1-4alkyl optionally
substituted with 1 to 3 groups selected from halo, --OH and
C.sub.1-4alkoxy; and wherein the values of the other variables are
as defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth, thirty-seventh, thirty-eighth, thirty-ninth and/or
fortieth embodiments.
[0114] In a forty-fifth embodiment of the invention, the compound
is represented by Formula VIII(B):
##STR00018##
or a pharmaceutically acceptable salt thereof, wherein Z is O,
NR.sup.22 or C(R.sup.22).sub.2, wherein R.sup.22, in each
occurrence, is independently H or a C.sub.1-4alkyl optionally
substituted with 1 to 3 groups selected from halo, --OH and
C.sub.1-4alkoxy; and wherein the values of the other variables are
as defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth, thirty-seventh, thirty-eighth, thirty-ninth and/or
fortieth embodiments.
[0115] In a forty-sixth embodiment of the invention, the compound
is represented by the following formula:
##STR00019##
or a pharmaceutically acceptable salt thereof, wherein Z is O,
NR.sup.22 or C(R.sup.22).sub.2, wherein R.sup.22, in each
occurrence, is independently H or a C.sub.1-4alkyl optionally
substituted with 1 to 3 groups selected from halo, --OH and
C.sub.1-4alkoxy; and wherein the values of the other variables are
as defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth, thirty-seventh, thirty-eighth, thirty-ninth and/or
fortieth embodiments.
[0116] In a forty-seventh embodiment of the invention, the compound
is represented by the following formula:
##STR00020##
or a pharmaceutically acceptable salt thereof, wherein Z is O,
NR.sup.22 or C(R.sup.22).sub.2, wherein R.sup.22 in each
occurrence, is independently H or a C.sub.1-4alkyl optionally
substituted with 1 to 3 groups selected from halo, --OH and
C.sub.1-4alkoxy; and wherein the values of the other variables are
as defined for the first, alternative first, second, eleventh,
twelfth, thirteenth, twentieth, twenty-first, twenty-second,
twenty-third, twenty-fourth, twenty-fifth, twenty-sixth,
twenty-seven, twenty-eight, twenty-nine, thirtieth, thirty-first,
thirty-second, thirty-third, thirty-fourth, thirty-fifth,
thirty-sixth, thirty-seventh, thirty-eighth, thirty-ninth and/or
fortieth embodiments.
[0117] In a forty-eighth embodiment of the invention, the compound
is represented by formula VIII(A), VIII(B), IX(A), IX(B), X(A) or
X(B), or a pharmaceutically acceptable salt thereof, wherein Z is
O; and wherein the values of the other variables are as defined for
the first, alternative first, second, eleventh, twelfth,
thirteenth, twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth, twenty-sixth, twenty-seven,
twenty-eight, twenty-nine, thirtieth, thirty-first, thirty-second,
thirty-third, thirty-fourth, thirty-fifth, thirty-sixth,
thirty-seventh, thirty-eighth, thirty-ninth and/or fortieth
embodiments.
[0118] In a forty-ninth embodiment of the invention, the compound
is represented by formula I, II, II(A), II(B), III, III(A), III(B),
IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A), VI(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein n is
0; and wherein the values of the other variables are as defined for
the first, alternative first, second, eleventh, twelfth,
thirteenth, twentieth, twenty-first, twenty-second, twenty-third,
twenty-fourth, twenty-fifth, twenty-sixth, twenty-seven,
twenty-eight, twenty-nine, thirtieth, thirty-first, thirty-second,
thirty-third, thirty-fourth, thirty-fifth, thirty-sixth,
thirty-seventh, thirty-eighth, thirty-ninth and/or fortieth
embodiments.
[0119] In a fiftieth embodiment of the invention, the compound is
represented by formula I, II, II(A), II(B), IV, IV(A), IV(B), V,
V(A), V(B), VI, VI(A) or VI(B), or a pharmaceutically acceptable
salt thereof, wherein R.sup.1 is --CN, --CF.sub.3 or --C(O)R.sup.a;
R.sup.2 is H, --OH, halo, C.sub.1-12alkyl or C.sub.1-12alkoxy,
wherein the alkyl and alkoxy are each optionally substituted with 1
to 3 groups selected from halo, --OH, C.sub.1-4alkoxy, a 6 to
12-membered aryl and a 5 to 12-membered heteroaryl; R.sup.3a is H,
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
--C(O)R.sup.13, --OR.sup.11, --N(R.sup.12).sub.2 or
--N(R.sup.13)C(O)R.sup.13; and R.sup.3b is C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, --C(O)R.sup.13, --OR.sup.11,
--N(R.sup.12).sub.2 or --N(R.sup.13)C(O)R.sup.13, wherein R.sup.11
to R.sup.13 are each independently H or C.sub.1-4alkyl; or R.sup.3a
and R.sup.3b taken together with the carbon, to which they are both
attached to, form a C.sub.3-6 membered non-aromatic ring; R.sup.4
is H, --OH, halo, C.sub.1-12alkyl, C.sub.1-12alkoxy or 6 to
12-membered aryl, wherein the alkyl, alkoxy and aryl are each
optionally substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl; "" is a single bond; R.sup.5 is H, --OH, halo,
C.sub.1-12alkyl or C.sub.1-12alkoxy, wherein the alkyl and alkoxy
are each optionally substituted with 1 to 3 groups selected from
halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to
12-membered heteroaryl; R.sup.b is H, C.sub.1-12alkyl, a 6 to
12-membered aryl, a 3-12-membered heterocyclyl, --C(O)R.sup.c,
--C(O)OR.sup.c, --C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c,
--S(O).sub.2OR.sup.c or --S(O).sub.2NR.sup.cR.sup.c, wherein
R.sup.c, in each occurrence, is independently H, C.sub.1-6alkyl, a
3 to 8-membered cycloalkyl, a 3 to 8-membered heterocyclyl or a 6
to 12-membered aryl, wherein the alkyl, cycloalkyl, heterocyclyl
and aryl, in each occurrence, in R.sup.b or R.sup.c are optionally
substituted with 1 to 3 groups selected from halo, --OH,
C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5 to 12-membered
heteroaryl, wherein the heterocyclyl comprises 1 to 3 heteroatoms,
wherein the heteroatoms are selected from the group consisting of
N, S and O; and n is 0 or 2, wherein, when n is 2, two R.sup.6 are
attached to the same ring carbon to form an oxo, .dbd.NR.sup.14 or
C.sub.1-12alkylidene; and wherein the values of the other variables
are as defined for the first or alternative first embodiment.
Alternatively, the compound is represented by formula I, II, II(A),
II(B), IV, IV(A), IV(B), V, V(A), V(B), VI, VI(A) or VI(B), or a
pharmaceutically acceptable salt thereof, wherein R.sup.1 is --CN
or --CF.sub.3; R.sup.2 is H or C.sub.1-4alkyl; R.sup.3a is H or
C.sub.1-6alkyl and R.sup.3b is C.sub.1-6alkyl; or R.sup.3a and
R.sup.3b taken together with the carbon, to which they are both
attached to, form a C.sub.3-6 membered non-aromatic ring; R.sup.4
is C.sub.1-6alkyl or phenyl; "" is a single bond; R.sup.5 is H or
C.sub.1-6alkyl; R.sup.b is H, C.sub.1-6alkyl, phenyl, oxetanyl,
pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyridazinyl, pyrazinyl
or pyrimidyl, wherein the C.sub.1-6alkyl is optionally substituted
with 1 to 3 halo, phenyl, pyrrolyl, pyrazolyl, imidazolyl,
pyridinyl, pyridazinyl, pyrazinyl or pyrimidyl; and n is 0 or 2,
wherein, when n is 2, two R.sup.6 are attached to the same ring
carbon to form an oxo; and wherein the values of the other
variables are as defined for the first or alternative first
embodiment. In another alternative, the compound is represented by
formula I, II, II(A), II(B), IV, IV(A), IV(B), V, V(A), V(B), VI,
VI(A) or VI(B), or a pharmaceutically acceptable salt thereof,
wherein R.sup.1 is --CN or --CF.sub.3; R.sup.2 is H or
C.sub.1-4alkyl; R.sup.3a is H or C.sub.1-6alkyl and R.sup.3b is
C.sub.1-6alkyl, or R.sup.3a and R.sup.3b taken together with the
carbon, to which they are both attached to, form a C.sub.3-6
membered non-aromatic ring; R.sup.4 is C.sub.1-6alkyl; "" is a
single bond; R.sup.5 is H or C.sub.1-6alkyl; R.sup.b is
--C(O)R.sup.c, --S(O).sub.2R.sup.c or --C(O)NR.sup.cR.sup.c,
wherein R.sup.c, in each occurrence, is independently H,
C.sub.1-6alkyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl,
phenyl, oxetanyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl, wherein the cyclopropyl,
cyclobutyl, cyclopentyl, cyclohexyl, phenyl, benzyl, oxetanyl,
pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyridazinyl, pyrazinyl
or pyrimidyl is optionally substituted by 1 to 3 C.sub.1-4alkyl
groups; and the C.sub.1-6alkyl is substituted with halo, phenyl or
C.sub.1-4alkoxy; and n is 0 or 2, wherein, when n is 2, two R.sup.6
are attached to the same ring carbon to form an oxo; and wherein
the values of the other variables are as defined for the first or
alternative first embodiment. In a further alternative, the
compound is represented by formula I, II, II(A) or II(B), or a
pharmaceutically acceptable salt thereof, wherein R.sup.1 is --CN;
R.sup.2 is H; R.sup.3a is H or C.sub.1-4alkyl and R.sup.3b is
C.sub.1-4alkyl, or R.sup.3a and R.sup.3b taken together with the
carbon, to which they are both attached to, form a C.sub.3-6
membered non-aromatic ring; R.sup.4 is C.sub.1-4alkyl or phenyl; ""
is a single bond; R.sup.5 is H; X is NR.sup.b, wherein R.sup.b is
H, C.sub.1-4alkyl, phenyl, benzyl, oxetanyl, pyrrolyl, pyrazolyl,
imidazolyl, pyridinyl, pyridazinyl, pyrazinyl, pyrimidyl,
--C(O)R.sup.c, --C(O)NHR.sup.c or --S(O).sub.2R.sup.c; wherein the
C.sub.1-4alkyl, phenyl, benzyl, pyrrolyl, pyrazolyl, imidazolyl,
pyridinyl, pyridazinyl, pyrazinyl or pyrimidyl are optionally
substituted with 1 or 2 C.sub.1-4alkyl groups or 1 to 4 halo; and
R.sup.c is H, C.sub.1-6alkyl, cyclopropyl, cyclobutyl, cyclopentyl,
cyclohexyl, phenyl, benzyl, oxetanyl, pyrrolyl, pyrazolyl,
imidazolyl, pyridinyl, pyridazinyl, pyrazinyl or pyrimidyl; wherein
the cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl,
benzyl, oxetanyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl is optionally substituted by 1
to 3 C.sub.1-4alkyl groups; and the C.sub.1-6alkyl is substituted
with phenyl or C.sub.1-4alkoxy; n is 0 or 2, wherein, when n is 2,
two R.sup.6 are attached to the same ring carbon to form an oxo; p
and q are each 1; and wherein the values of the other variables are
as defined for the first or alternative first embodiment.
[0120] In a fifty-first embodiment of the invention, the compound
is represented by formula I, III, III(A), III(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --CN, --CF.sub.3 or --C(O)R.sup.a; R.sup.2 is H, --OH,
halo, C.sub.1-12alkyl or C.sub.1-12alkoxy, wherein the alkyl and
alkoxy are each optionally substituted with 1 to 3 groups selected
from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl and a 5
to 12-membered heteroaryl; R.sup.3a is H, C.sub.1-12alkyl,
C.sub.2-12alkenyl, C.sub.2-12alkynyl, --C(O)R.sup.13, --OR.sup.11,
--N(R.sup.12).sub.2 or --N(R.sup.13)C(O)R.sup.13; and R.sup.3b is
C.sub.1-12alkyl, C.sub.2-12alkenyl, C.sub.2-12alkynyl,
--C(O)R.sup.13, --OR.sup.11, --N(R.sup.12).sub.2 or
--N(R.sup.13)C(O)R.sup.13, wherein R.sup.11 to R.sup.13 are each
independently H or C.sub.1-4alkyl; or R.sup.3a and R.sup.3b taken
together with the carbon, to which they are both attached to, form
a C.sub.3-8 membered non-aromatic ring; R.sup.4 is H, --OH, halo,
C.sub.1-12alkyl, C.sub.1-12alkoxy or 6 to 12-membered aryl, wherein
the alkyl, alkoxy and aryl are each optionally substituted with 1
to 3 groups selected from halo, --OH, C.sub.1-4alkoxy, a 6 to
12-membered aryl and a 5 to 12-membered heteroaryl; "" is a double
bond; R.sup.b is H, C.sub.1-12alkyl, a 6 to 12-membered aryl, a
3-12-membered heterocyclyl, --C(O)R.sup.c, --C(O)OR.sup.c,
--C(O)NR.sup.cR.sup.c, --S(O).sub.2R.sup.c, --S(O).sub.2OR.sup.c or
--S(O).sub.2NR.sup.cR.sup.c, wherein R.sup.c, in each occurrence,
is independently H, C.sub.1-6alkyl, a 3 to 8-membered cycloalkyl, a
3 to 8-membered heterocyclyl or a 6 to 12-membered aryl, wherein
the alkyl, cycloalkyl, heterocyclyl and aryl, in each occurrence,
in R.sup.b or R.sup.c are optionally substituted with 1 to 3 groups
selected from halo, --OH, C.sub.1-4alkoxy, a 6 to 12-membered aryl
and a 5 to 12-membered heteroaryl, wherein the heterocyclyl and
heteroaryl each comprise 1 to 3 heteroatoms, wherein the
heteroatoms are selected from the group consisting of N, S and O;
and n is 0; and wherein the values of the other variables are as
defined for the first or alternative first embodiment.
Alternatively, the compound is represented by formula I, III,
III(A), III(B), VII, VII(A) or VII(B), or a pharmaceutically
acceptable salt thereof, wherein R.sup.1 is --CN or --CF.sub.3;
R.sup.2 is H or C.sub.1-4alkyl; R.sup.3a is C.sub.1-6alkyl and
R.sup.3b is C.sub.1-6alkyl, or R.sup.3a and R.sup.3b taken together
with the carbon, to which they are both attached to, form a
C.sub.3-6 membered non-aromatic ring; R.sup.4 is C.sub.1-6alkyl; ""
is a double bond; R.sup.b is H, C.sub.1-6alkyl, phenyl, oxetanyl,
pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyridazinyl, pyrazinyl
or pyrimidyl, wherein the alkyl is optionally substituted with 1 to
3 halo, phenyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl; and n is 0; and wherein the
values of the other variables are as defined for the first or
alternative first embodiment. In another alternative, the compound
is represented by formula I, III, III(A), III(B), VII, VII(A) or
VII(B), or a pharmaceutically acceptable salt thereof, wherein
R.sup.1 is --CN or --CF.sub.3; R.sup.2 is H or C.sub.1-4alkyl;
R.sup.3a is C.sub.1-6alkyl and R.sup.3b is C.sub.1-6alkyl, or
R.sup.3a and R.sup.3b taken together with the carbon, to which they
are both attached to, form a C.sub.3-6 membered non-aromatic ring;
R.sup.4 is C.sub.1-6alkyl; "" is a double bond; R.sup.b is
--C(O)R.sup.c, --S(O).sub.2R.sup.c or --C(O)NR.sup.cR.sup.c;
wherein R.sup.c, in each occurrence, is independently H,
C.sub.1-6alkyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl,
phenyl, oxetanyl, pyrrolyl, pyrazolyl, imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl, wherein the cyclopropyl,
cyclobutyl, cyclopentyl, cyclohexyl, phenyl, benzyl, oxetanyl,
pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyridazinyl, pyrazinyl
or pyrimidyl is optionally substituted by 1 to 3 C.sub.1-4alkyl
groups; and the C.sub.1-6alkyl is substituted with halo, phenyl or
C.sub.1-4alkoxy; and n is 0; and wherein the values of the other
variables are as defined for the first or alternative first
embodiment. In a further alternative, the compound is represented
by formula I, III, III(A) or III(B), or a pharmaceutically
acceptable salt thereof, wherein R.sup.1 is --CN; R.sup.2 is H;
R.sup.3a is C.sub.1-4alkyl and R.sup.3b is C.sub.1-4alkyl, or
R.sup.3a and R.sup.3b taken together with the carbon, to which they
are both attached to, form a C.sub.3-6 membered non-aromatic ring;
R.sup.4 is C.sub.1-4alkyl; "" is a double bond; X is NR.sup.b,
wherein R.sup.b is C.sub.1-4alkyl, pyridazinyl, pyrazinyl,
pyrimidyl or --C(O)R.sup.c, wherein R.sup.c is C.sub.1-6alkyl; n is
0; and p and q are each 1; and wherein the values of the other
variables are as defined for the first or alternative first
embodiment.
[0121] In a fifty-second embodiment of the invention, the compound
is selected from the group consisting of: [0122]
(4aR,5R,8aS)-5-methyl-1,6-dioxo-8a-phenyl-2-(3-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0123]
(4aS,5S,8aR)-5-methyl-1,6-dioxo-8a-phenyl-2-(3-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0124]
(4aR,5R,8aR)-2-(2-hydroxyethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0125]
(4aS,5S,8aS)-2-(2-hydroxyethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0126]
(4aS,5R,8aR)-5-methyl-1,6-dioxo-8a-phenyl-2-(2-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0127]
(4aR,5S,8aS)-5-methyl-1,6-dioxo-8a-phenyl-2-(2-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0128]
(4aR,5R,8aS)-2-cyclobutyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydr-
oisoquinoline-7-carbonitrile; [0129]
(4aS,5S,8aR)-2-cyclobutyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydr-
oisoquinoline-7-carbonitrile; [0130]
(4aR,5R,8aR)-5-methyl-2-[(1-methylpyrazol-4-yl)methyl]-1,6-dioxo-8a-pheny-
l-3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0131]
(4aS,5S,8aS)-5-methyl-2-[(1-methylpyrazol-4-yl)methyl]-1,6-dioxo-8a-pheny-
l-3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0132]
(4aR,5R,8aS)-2-[(3-methoxyphenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4-
,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0133]
(4aS,5S,8aR)-2-[(3-methoxyphenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4-
,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0134]
(4aS,5S,8aR)-2-[(3-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0135]
(4aR,5R,8aS)-2-[(3-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0136]
(4aS,5S,8aR)-2-[(4-methoxyphenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4-
,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0137]
(4aR,5R,8aS)-2-[(4-methoxyphenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4-
,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0138]
(4aS,5S,8aS)-2-isopropyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydro-
isoquinoline-7-carbonitrile; [0139]
(4aR,5R,8aR)-2-isopropyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydro-
isoquinoline-7-carbonitrile; [0140]
(4aS,5S,8aR)-2-(cyclopropylmethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5--
tetrahydroisoquinoline-7-carbonitrile; [0141]
(4aR,5R,8aS)-2-(cyclopropylmethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5--
tetrahydroisoquinoline-7-carbonitrile; [0142]
(4aS,5S,8aR)-2-[(4-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0143]
(4aR,5R,8aS)-2-[(4-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0144]
(4aS,5S,8aR)-2-(2,2-difluoroethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5--
tetrahydroisoquinoline-7-carbonitrile; [0145]
(4aR,5R,8aS)-2-(2,2-difluoroethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5--
tetrahydroisoquinoline-7-carbonitrile; [0146]
(4aS,5S,8aR)-2-[(2-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0147]
(4aR,5R,8aS)-2-[(2-fluorophenyl)methyl]-5-methyl-1,6-dioxo-8a-phenyl-3,4,-
4a,5-tetrahydroisoquinoline-7-carbonitrile; [0148]
(4aS,8aR)-2-(2-methoxyethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydr-
o-3H-isoquinoline-7-carbonitrile; [0149]
(4aR,8aR)-2-(2-methoxyethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydr-
o-3H-isoquinoline-7-carbonitrile; [0150]
(4aS,5S,8aR)-2-(2-methoxyethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0151]
(4aR,5R,8aS)-2-(2-methoxyethyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0152]
(4aS,8aS)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydro-3H-isoquinolin-
e-7-carbonitrile; [0153]
(4aR,8aR)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydro-3H-isoquinolin-
e-7-carbonitrile; [0154]
(4aR,8aR)-5,5,8a-trimethyl-2-(2-methylpyrimidin-4-yl)-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0155]
(5aR,9aS)-3-acetyl-5a,9,9-trimethyl-8-oxo-2,4,5,9a-tetrahydro-1H-3-benzaz-
epine-7-carbonitrile; [0156]
(4aR,8aR)-5,5,8a-trimethyl-2-(6-methylpyrimidin-4-yl)-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile hydrochloride; [0157]
(5aS,9aR)-2-(2,2-difluoroethyl)-6,6,9a-trimethyl-7-oxo-3,4,5,5a-tetrahydr-
o-1H-2-benzazepine-8-carbonitrile; [0158]
(4aS,8aR)-5,5,8a-trimethyl-2-(2-methylpyrimidin-5-yl)-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0159]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-(2,2,2-trifluoroacetyl)-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0160]
(8aR)-2-ethyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbonit-
rile; [0161]
(8aS)-2-ethyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbonit-
rile; [0162]
(4aR,8aS)-2-ethyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydro-3H-isoqui-
noline-7-carbonitrile; [0163]
(4aS,8aR)-2-ethyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-4,4a-dihydro-3H-isoqui-
noline-7-carbonitrile; [0164]
(4aR,5S,8aR)-2-acetyl-5-ethyl-5,8a-dimethyl-6-oxo-1,3,4,4a-tetrahydroisoq-
uinoline-7-carbonitrile; [0165]
(5R,8aR)-2-acetyl-5-benzyl-5,8a-dimethyl-6-oxo-1,3-dihydroisoquinoline-7--
carbonitrile; [0166]
(5S,8aR)-2-acetyl-5-benzyl-5,8a-dimethyl-6-oxo-1,3-dihydroisoquinoline-7--
carbonitrile; [0167]
(5R,8aR)-2-acetyl-5-ethyl-5,8a-dimethyl-6-oxo-1,3-dihydroisoquinoline-7-c-
arbonitrile; [0168]
(5S,8aR)-2-acetyl-5-ethyl-5,8a-dimethyl-6-oxo-1,3-dihydroisoquinoline-7-c-
arbonitrile; [0169]
(4aS,5R,8aR)-2,5-dimethyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0170]
(4aR,5S,8aS)-2,5-dimethyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0171]
(8aR)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbonitrile;
[0172]
(8aS)-2,5,5-trimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbon-
itrile; [0173]
(4aS,5R,8aR)-2-ethyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroisoq-
uinoline-7-carbonitrile; [0174]
(4aR,5S,8aS)-2-ethyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroisoq-
uinoline-7-carbonitrile; [0175]
(4aS,8aR)-2-[(2S)-2-fluoropropanoyl]-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0176]
(4aS,8aR)-2-[(2R)-2-fluoropropanoyl]-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0177]
(4aS,8aR)-2-(2,2-difluoroethyl)-5,5-dimethyl-6-oxo-8a-phenyl-1,3,4,4a-tet-
rahydroisoquinoline-7-carbonitrile; [0178]
(4aR,8aS)-2-(2,2-difluoroethyl)-5,5-dimethyl-6-oxo-8a-phenyl-1,3,4,4a-tet-
rahydroisoquinoline-7-carbonitrile; [0179] methyl
(4aS,8aR)-7-cyano-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline--
2-carboxylate; [0180]
(4aS,8aR)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0181] tert-butyl
(4aR,8aR)-7-cyano-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline--
2-carboxylate; [0182]
(4aS,8aR)-2-acetyl-5,5-dimethyl-6-oxo-8a-phenyl-1,3,4,4a-tetrahydroisoqui-
noline-7-carbonitrile; [0183]
(4aR,8aS)-2-acetyl-5,5-dimethyl-6-oxo-8a-phenyl-1,3,4,4a-tetrahydroisoqui-
noline-7-carbonitrile; [0184]
(4aR,5R,8aS)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydro-2H-isoquino-
line-7-carbonitrile; [0185]
(4aS,5S,8aR)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydro-2H-isoquino-
line-7-carbonitrile; [0186]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-pyrazin-2-yl-1,3,4,4a-tetrahydroisoqui-
noline-7-carbonitrile; [0187]
(4aS,8aR)-2-(2,2-difluoroethyl)-8a-ethyl-5,5-dimethyl-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0188]
(4aR,8aS)-2-(2,2-difluoroethyl)-8a-ethyl-5,5-dimethyl-6-oxo-1,3,4,4a-tetr-
ahydroisoquinoline-7-carbonitrile; [0189]
(4aS,8aR)-8a-ethyl-5,5-dimethyl-6-oxo-2-pyrimidin-2-yl-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0190]
(4aR,8aS)-8a-ethyl-5,5-dimethyl-6-oxo-2-pyrimidin-2-yl-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0191]
(4aS,8aR)-2-acetyl-8a-ethyl-5,5-dimethyl-6-oxo-1,3,4,4a-tetrahydroisoquin-
oline-7-carbonitrile; [0192]
(4aR,8aS)-2-acetyl-8a-ethyl-5,5-dimethyl-6-oxo-1,3,4,4a-tetrahydroisoquin-
oline-7-carbonitrile; [0193]
(4aR,8aR)-2-(2-methoxyethyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydrois-
oquinoline-7-carbonitrile; [0194]
(4aR,8aR)-5,5,8a-trimethyl-2-(2-methylsulfonylethyl)-6-oxo-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0195]
(5aS,9aR)-2-acetyl-6,6,9a-trimethyl-7-oxo-3,4,5,5a-tetrahydro-1H-2-benzaz-
epine-8-carbonitrile; [0196]
(5aS,9aR)-6,6,9a-trimethyl-3,7-dioxo-2,4,5,5a-tetrahydro-1H-2-benzazepine-
-8-carbonitrile; [0197]
(5aR,9aS)-5a,9,9-trimethyl-4,8-dioxo-2,3,5,9a-tetrahydro-1H-3-benzazepine-
-7-carbonitrile; [0198]
(5aS,9aS)-1,6,6,9a-tetramethyl-2,7-dioxo-3,4,5,5a-tetrahydro-1-benzazepin-
e-8-carbonitrile; [0199]
(5aS,9aS)-6,6,9a-trimethyl-2,7-dioxo-3,4,5,5a-tetrahydro-1H-1-benzazepine-
-8-carbonitrile; [0200]
(3R,4aS,8aR)-2-acetyl-3,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoqu-
inoline-7-carbonitrile; [0201]
(3S,4aR,8aS)-2-acetyl-3,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoqu-
inoline-7-carbonitrile; [0202]
(4aR,8aS)-2,5,5,8a-tetramethyl-3,6-dioxo-4,4a-dihydro-1H-isoquinoline-7-c-
arbonitrile; [0203]
(4aS,8aR)-2,5,5,8a-tetramethyl-3,6-dioxo-4,4a-dihydro-1H-isoquinoline-7-c-
arbonitrile; [0204]
(4aR,8aS)-5,5,8a-trimethyl-3,6-dioxo-1,2,4,4a-tetrahydroisoquinoline-7-ca-
rbonitrile; [0205]
(4aS,8aR)-5,5,8a-trimethyl-3,6-dioxo-1,2,4,4a-tetrahydroisoquinoline-7-ca-
rbonitrile; [0206]
(4aR,7aR,8aR)-3-ethyl-7a-methyl-4,7-dioxo-4a-phenyl-2,8-dihydro-1H-cyclop-
ropa[e]isoquinoline-6-carbonitrile; [0207]
(4aS,7aS,8aS)-3-ethyl-7a-methyl-4,7-dioxo-4a-phenyl-2,8-dihydro-1H-cyclop-
ropa[e]isoquinoline-6-carbonitrile; [0208]
(4aR,8aR)-2-ethyl-5,5-dimethyl-8a-phenyl-7-(trifluoromethyl)-4,4a-dihydro-
-3H-isoquinoline-1,6-dione; [0209]
(4aS,8aS)-2-ethyl-5,5-dimethyl-8a-phenyl-7-(trifluoromethyl)-4,4a-dihydro-
-3H-isoquinoline-1,6-dione; [0210]
(4aS,8aR)-2-acetyl-5,5,8a-trimethyl-7-(trifluoromethyl)-1,3,4,4a-tetrahyd-
roisoquinolin-6-one; [0211]
(4aR,8aS)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carboxamide; [0212]
(4aS,8aR)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carboxamide; [0213]
(8aR)-8a-(4-fluorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0214]
(8aS)-8a-(4-fluorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0215]
(8aR)-8a-(4-chlorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0216]
(8aR)-8a-(4-chlorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0217]
(8aS)-8a-(3-fluorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0218]
(8aR)-8a-(3-fluorophenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-car-
bonitrile; [0219]
(8aR)-8a-(4-methoxyphenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-ca-
rbonitrile; [0220]
(8aR)-8a-(4-methoxyphenyl)-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-ca-
rbonitrile; [0221]
(8aR)-8a-benzyl-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-carbonitrile;
[0222]
(8aS)-8a-benzyl-2,5,5-trimethyl-1,6-dioxo-3H-isoquinoline-7-carbon-
itrile; [0223]
(4aS,8aS)-2-acetyl-5,5,8a-trimethyl-7-methylsulfonyl-1,3,4,4a-tetrahydroi-
soquinolin-6-one; [0224]
(8aS)-5,5-dimethyl-2-(1-methylpyrazol-3-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0225]
(8aR)-5,5-dimethyl-2-(1-methylpyrazol-3-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0226]
(8aS)-5,5-dimethyl-2-(1-methylpyrazol-4-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0227]
(8aR)-5,5-dimethyl-2-(1-methylpyrazol-4-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0228]
(8aS)-5,5-dimethyl-2-(2-methylpyrazol-3-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0229]
(8aR)-5,5-dimethyl-2-(2-methylpyrazol-3-yl)-1,6-dioxo-8a-phenyl-3H-isoqui-
noline-7-carbonitrile; [0230]
(8aS)-5,5-dimethyl-2-(1-methylimidazol-2-yl)-1,6-dioxo-8a-phenyl-3H-isoqu-
inoline-7-carbonitrile; [0231]
(8aR)-5,5-dimethyl-2-(1-methylimidazol-2-yl)-1,6-dioxo-8a-phenyl-3H-isoqu-
inoline-7-carbonitrile; [0232]
(8aS)-5,5-dimethyl-2-(6-methylpyrimidin-4-yl)-1,6-dioxo-8a-phenyl-3H-isoq-
uinoline-7-carbonitrile; [0233]
(8aR)-5,5-dimethyl-2-(6-methylpyrimidin-4-yl)-1,6-dioxo-8a-phenyl-3H-isoq-
uinoline-7-carbonitrile; [0234]
(8aS)-5,5-dimethyl-2-(2-methylpyrimidin-4-yl)-1,6-dioxo-8a-phenyl-3H-isoq-
uinoline-7-carbonitrile; [0235]
(8aR)-5,5-dimethyl-2-(2-methylpyrimidin-4-yl)-1,6-dioxo-8a-phenyl-3H-isoq-
uinoline-7-carbonitrile; [0236]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyridazin-4-yl-3H-isoquinoline-7-
-carbonitrile; [0237]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyridazin-4-yl-3H-isoquinoline-7-
-carbonitrile; [0238]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-5-yl-3H-isoquinoline-7-
-carbonitrile; [0239]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-5-yl-3H-isoquinoline-7-
-carbonitrile; [0240]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyridazin-3-yl-3H-isoquinoline-7-
-carbonitrile; [0241]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyridazin-3-yl-3H-isoquinoline-7-
-carbonitrile; [0242]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrazin-2-yl-3H-isoquinoline-7-c-
arbonitrile; [0243]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrazin-2-yl-3H-isoquinoline-7-c-
arbonitrile; [0244]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-4-yl-3H-isoquinoline-7-
-carbonitrile; [0245]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-4-yl-3H-isoquinoline-7-
-carbonitrile; [0246]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(2-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0247]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(2-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0248]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(3-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0249]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(3-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0250]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(4-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0251]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(4-pyridyl)-3H-isoquinoline-7-ca-
rbonitrile; [0252]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-2-yl-3H-isoquinoline-7-
-carbonitrile; [0253]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-pyrimidin-2-yl-3H-isoquinoline-7-
-carbonitrile; [0254]
(4aS,5S,8aR)-2-(4-methoxyphenyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0255]
(4aR,5R,8aS)-2-(4-methoxyphenyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0256]
(4aS,5S,8aR)-2-(4-fluorophenyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0257]
(4aR,5R,8aS)-2-(4-fluorophenyl)-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tet-
rahydroisoquinoline-7-carbonitrile; [0258]
(4aS,5S,8aR)-5-methyl-1,6-dioxo-8a-phenyl-2-pyrimidin-4-yl-3,4,4a,5-tetra-
hydroisoquinoline-7-carbonitrile; [0259]
(4aR,5R,8aS)-5-methyl-1,6-dioxo-8a-phenyl-2-pyrimidin-4-yl-3,4,4a,5-tetra-
hydroisoquinoline-7-carbonitrile; [0260]
(4aS,5R,8aR)-5-methyl-1,6-dioxo-2,8a-diphenyl-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0261]
(4aR,5S,8aS)-5-methyl-1,6-dioxo-2,8a-diphenyl-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0262]
(4aR,5R,8aS)-2-ethyl-5,8a-dimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquinol-
ine-7-carbonitrile; [0263]
(4aS,5S,8aR)-2-ethyl-5,8a-dimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquinol-
ine-7-carbonitrile; [0264]
(4aR,5R,8aS)-2,5,8a-trimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquinoline-7-
-carbonitrile;
[0265]
(4aS,5S,8aR)-2,5,8a-trimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquin-
oline-7-carbonitrile; [0266]
(4aR,8aR)-2-isopropyl-5,5,8a-trimethyl-1,6-dioxo-4,4a-dihydro-3H-isoquino-
line-7-carbonitrile; [0267]
(4aS,8aS)-2-isopropyl-5,5,8a-trimethyl-1,6-dioxo-4,4a-dihydro-3H-isoquino-
line-7-carbonitrile; [0268]
(4aS,8aS)-2,5,5,8a-tetramethyl-1,6-dioxo-4,4a-dihydro-3H-isoquinoline-7-c-
arbonitrile; [0269]
(4aR,8aR)-2,5,5,8a-tetramethyl-1,6-dioxo-4,4a-dihydro-3H-isoquinoline-7-c-
arbonitrile; [0270]
(8aR)-2-ethyl-5,5,8a-trimethyl-1,6-dioxo-3H-isoquinoline-7-carbonitrile;
[0271]
(8aS)-2-ethyl-5,5,8a-trimethyl-1,6-dioxo-3H-isoquinoline-7-carboni-
trile; [0272]
(8aR)-2-cyclobutyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-car-
bonitrile; [0273]
(8aS)-2-cyclobutyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-car-
bonitrile; [0274]
(8aR)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(3-pyridylmethyl)-3H-isoquinolin-
e-7-carbonitrile; [0275]
(8aS)-5,5-dimethyl-1,6-dioxo-8a-phenyl-2-(3-pyridylmethyl)-3H-isoquinolin-
e-7-carbonitrile; [0276]
(8aR)-2-cyclopropyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-ca-
rbonitrile; [0277]
(8aS)-2-cyclopropyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-ca-
rbonitrile; [0278]
(8aR)-2-isopropyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carb-
onitrile; [0279]
(8aS)-2-isopropyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carb-
onitrile; [0280]
(8aR)-2-cyclopentyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-ca-
rbonitrile; [0281]
(8aS)-2-cyclopentyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-ca-
rbonitrile; [0282]
(8aR)-2-isobutyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbo-
nitrile; [0283]
(8aS)-2-isobutyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carbo-
nitrile; [0284]
(8aR)-2-benzyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carboni-
trile; [0285]
(8aS)-2-benzyl-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-7-carboni-
trile; [0286]
(8aR)-2-(2-methoxyethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-
-7-carbonitrile; [0287]
(8aS)-2-(2-methoxyethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinoline-
-7-carbonitrile; [0288]
(8aR)-2-(cyclopropylmethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinol-
ine-7-carbonitrile; [0289]
(8aS)-2-(cyclopropylmethyl)-5,5-dimethyl-1,6-dioxo-8a-phenyl-3H-isoquinol-
ine-7-carbonitrile; [0290]
(4aR,5R,8aS)-2-benzyl-5,8a-dimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0291]
(4aS,5S,8aR)-2-benzyl-5,8a-dimethyl-1,6-dioxo-3,4,4a,5-tetrahydroisoquino-
line-7-carbonitrile; [0292]
(8aR)-2,5,5,8a-tetramethyl-1,6-dioxo-3H-isoquinoline-7-carbonitrile;
[0293]
(8aS)-2,5,5,8a-tetramethyl-1,6-dioxo-3H-isoquinoline-7-carbonitril-
e; [0294]
(4aR,5R,8aS)-5-methyl-2-[(2-methyl-4-pyridyl)methyl]-1,6-dioxo-8-
a-phenyl-3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0295]
(4aS,5S,8aR)-5-methyl-2-[(2-methyl-4-pyridyl)methyl]-1,6-dioxo-8a-phenyl--
3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0296]
(4aR,5R,8aS)-5-methyl-2-[(5-methylisoxazol-3-yl)methyl]-1,6-dioxo-8a-phen-
yl-3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0297]
(4aS,5S,8aR)-5-methyl-2-[(5-methylisoxazol-3-yl)methyl]-1,6-dioxo-8a-phen-
yl-3,4,4a,5-tetrahydroisoquinoline-7-carbonitrile; [0298]
(4aR,5R,8aS)-5-methyl-1,6-dioxo-8a-phenyl-2-(4-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0299]
(4aS,5S,8aR)-5-methyl-1,6-dioxo-8a-phenyl-2-(4-pyridylmethyl)-3,4,4a,5-te-
trahydroisoquinoline-7-carbonitrile; [0300]
(5aS,9aR)-5a,9,9-trimethyl-4,8-dioxo-2,3,4,5,5a,8,9,9a-octahydro-1H-benzo-
l[d]azepine-7-carbonitrile; [0301]
(5aR,9aS)-6,6,9a-trimethyl-3,7-dioxo-2,3,4,5,5a,6,7,9a-octahydro-1H-benzo-
[c]azepine-8-carbonitrile; [0302]
(5aR,9aS)-2-acetyl-6,6,9a-trimethyl-7-oxo-2,3,4,5,5a,6,7,9a-octahydro-1H--
benzo [c]azepine-8-carbonitrile; [0303]
(4aS,8aR)-2-(2-fluoroethyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroiso-
quinoline-7-carbonitrile; [0304]
(8aR)-2,5,5,8a-tetramethyl-6-oxo-1,3-dihydroisoquinoline-7-carbonitrile
hydrochloride; [0305]
(8aS)-2,5,5,8a-tetramethyl-6-oxo-1,3-dihydroisoquinoline-7-carbonitrile
hydrochloride; [0306]
(4aS,8aR)-5,5,8a-trimethyl-2-(oxetan-3-yl)-6-oxo-1,3,4,4a-tetrahydroisoqu-
inoline-7-carbonitrile; [0307]
(4aR,8aS)-5,5,8a-trimethyl-2-(oxetan-3-yl)-6-oxo-1,3,4,4a-tetrahydroisoqu-
inoline-7-carbonitrile [0308]
(8aR)-5,5,8a-trimethyl-6-oxo-2-pyrimidin-2-yl-1,3-dihydroisoquinoline-7-c-
arbonitrile hydrochloride; [0309]
(8aS)-5,5,8a-trimethyl-6-oxo-2-pyrimidin-2-yl-1,3-dihydroisoquinoline-7-c-
arbonitrile hydrochloride; [0310]
(4aR,5R,8aS)-2-benzyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroiso-
quinoline-7-carbonitrile; [0311]
(4aS,5S,8aR)-2-benzyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroiso-
quinoline-7-carbonitrile; [0312]
(8aR)-2-(2,2-dimethylpropanoyl)-5,5,8a-trimethyl-6-oxo-1,3-dihydroisoquin-
oline-7-carbonitrile; [0313]
(8aS)-2-(2,2-dimethylpropanoyl)-5,5,8a-trimethyl-6-oxo-1,3-dihydroisoquin-
oline-7-carbonitrile; [0314]
(4aS,8aR)-2-formyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0315]
(4aR,8aS)-2-formyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0316]
(4aS,8aR)-2-(2,2-difluoroethyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0317]
(4aR,8aS)-2-(2,2-difluoroethyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0318]
(4aS,8aR)-7-cyano-N,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoquinol-
ine-2-carboxamide; [0319]
(4aR,8aS)-7-cyano-N,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoquinol-
ine-2-carboxamide; [0320]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-(2,2,2-trifluoroethyl)-1,3,4,4a-tetrah-
ydroisoquinoline-7-carbonitrile; [0321]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2-(2,2,2-trifluoroethyl)-1,3,4,4a-tetrah-
ydroisoquinoline-7-carbonitrile; [0322]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-pyrimidin-2-yl-1,3,4,4a-tetrahydroisoq-
uinoline-7-carbonitrile; [0323]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2-pyrimidin-2-yl-1,3,4,4a-tetrahydroisoq-
uinoline-7-carbonitrile; [0324]
(4aS,8aR)-2-(2,2-dimethylpropanoyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0325]
(4aR,8aS)-2-(2,2-dimethylpropanoyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0326]
(4aS,8aR)-5,5,8a-trimethyl-2-(2-methylpropanoyl)-6-oxo-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0327]
(4aR,8aS)-5,5,8a-trimethyl-2-(2-methylpropanoyl)-6-oxo-1,3,4,4a-tetrahydr-
oisoquinoline-7-carbonitrile; [0328]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-propanoyl-1,3,4,4a-tetrahydroisoquinol-
ine-7-carbonitrile; [0329]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2-propanoyl-1,3,4,4a-tetrahydroisoquinol-
ine-7-carbonitrile; [0330]
(4aS,5S,8aR)-2-acetyl-5,8a-dimethyl-6-oxo-3,4,4a,5-tetrahydro-1H-isoquino-
line-7-carbonitrile; [0331]
(4aR,5R,8aS)-2-acetyl-5,8a-dimethyl-6-oxo-3,4,4a,5-tetrahydro-1H-isoquino-
line-7-carbonitrile; [0332]
(8aR)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3-dihydroisoquinoline-7-carbonitr-
ile; [0333]
(8aS)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3-dihydroisoquinoline-7-carbonitr-
ile; [0334]
(4aR,8aS)-5,5,8a-trimethyl-2-(1-methylpyrazole-4-carbonyl)-6-oxo-1,3,4,4a-
-tetrahydroisoquinoline-7-carbonitrile; [0335]
(4aS,8aR)-5,5,8a-trimethyl-2-(1-methylpyrazole-4-carbonyl)-6-oxo-1,3,4,4a-
-tetrahydroisoquinoline-7-carbonitrile; [0336]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2-(pyrimidine-5-carbonyl)-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0337]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-(pyrimidine-5-carbonyl)-1,3,4,4a-tetra-
hydroisoquinoline-7-carbonitrile; [0338]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2-(pyridine-3-carbonyl)-1,3,4,4a-tetrahy-
droisoquinoline-7-carbonitrile; [0339]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2-(pyridine-3-carbonyl)-1,3,4,4a-tetrahy-
droisoquinoline-7-carbonitrile; [0340]
(4aR,8aS)-2-(2-methoxyacetyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroi-
soquinoline-7-carbonitrile; [0341]
(4aS,8aR)-2-(2-methoxyacetyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroi-
soquinoline-7-carbonitrile; [0342]
(4aR,8aS)-5,5,8a-trimethyl-2-(oxetane-3-carbonyl)-6-oxo-1,3,4,4a-tetrahyd-
roisoquinoline-7-carbonitrile; [0343]
(4aS,8aR)-5,5,8a-trimethyl-2-(oxetane-3-carbonyl)-6-oxo-1,3,4,4a-tetrahyd-
roisoquinoline-7-carbonitrile; [0344]
(4aR,8aS)-2-(cyclopropanecarbonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrah-
ydroisoquinoline-7-carbonitrile; [0345]
(4aS,8aR)-2-(cyclopropanecarbonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrah-
ydroisoquinoline-7-carbonitrile; [0346]
(4aS,8aR)-2-butanoyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoli-
ne-7-carbonitrile; [0347]
(4aR,8aS)-2-butanoyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoli-
ne-7-carbonitrile; [0348]
(4aS,8aR)-2-(cyclohexanecarbonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahy-
droisoquinoline-7-carbonitrile; [0349]
(4aR,8aS)-2-(cyclohexanecarbonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahy-
droisoquinoline-7-carbonitrile; [0350]
(4aS,8aR)-2-benzyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0351]
(4aR,8aS)-2-benzyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0352]
(4aS,8aR)-2-(benzenesulfonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroi-
soquinoline-7-carbonitrile; [0353]
(4aR,8aS)-2-(benzenesulfonyl)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroi-
soquinoline-7-carbonitrile; [0354]
(4aS,8aR)-5,5,8a-trimethyl-2-methylsulfonyl-6-oxo-1,3,4,4a-tetrahydroisoq-
uinoline-7-carbonitrile; [0355]
(4aR,8aS)-5,5,8a-trimethyl-2-methylsulfonyl-6-oxo-1,3,4,4a-tetrahydroisoq-
uinoline-7-carbonitrile; [0356]
(4aS,8aR)-2-benzoyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinolin-
e-7-carbonitrile; [0357]
(4aR,8aS)-2-benzoyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinolin-
e-7-carbonitrile; [0358]
(4aS,8aR)-2,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-7-ca-
rbonitrile; [0359]
(4aR,8aS)-2,5,5,8a-tetramethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-7-ca-
rbonitrile; [0360]
(4aS,8aR)-5,5,8a-trimethyl-6-oxo-2,3,4,4a-tetrahydro-1H-isoquinoline-7-ca-
rbonitrile hydrochloride; [0361]
(4aR,8aS)-5,5,8a-trimethyl-6-oxo-2,3,4,4a-tetrahydro-1H-isoquinoline-7-ca-
rbonitrile hydrochloride; [0362]
(4aR,8aS)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0363]
(4aS,8aR)-2-acetyl-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisoquinoline-
-7-carbonitrile; [0364]
(8aS)-5,5,8a-trimethyl-6-oxo-1,3-dihydroisochromene-7-carbonitrile;
[0365]
(8aS)-5,5,8a-trimethyl-6-oxo-1,3,4,4a-tetrahydroisochromene-7-carb-
onitrile, and pharmaceutically acceptable salts thereof.
[0366] In a fifty-third embodiment of the invention, the compound
is represented by Formula XI:
##STR00021##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first
and/or second embodiments.
[0367] In a fifty-fourth embodiment of the invention, the compound
is represented by formula XI, or a pharmaceutically acceptable salt
thereof, wherein R.sup.b is H, C.sub.1-6alkyl, 3 to 6 membered
cycloalkyl, --C(O)R.sup.c, phenyl or a monocyclic heteroaryl,
wherein the alkyl and cycloalkyl is optionally substituted with one
or more halo, hydroxyl, C.sub.1-4alkoxy, 3 to 6 membered
cycloalkyl, phenyl, or monocyclic heteroaryl; and wherein the
cycloalkyl, phenyl and monocyclic heteroaryl, in each occurrence,
are optionally substituted with one or more groups selected from
halo, C.sub.1-4alkyl and C.sub.1-4alkoxy; and wherein the values of
the other variables are as defined for the first, alternative first
and/or second embodiments.
[0368] In a fifty-fifth embodiment of the invention, the compound
is represented by formula XI, or a pharmaceutically acceptable salt
thereof, wherein R.sup.1 is --CN or --CF.sub.3; R.sup.2 is H or
C.sub.1-4alkyl; R.sup.3a is H or C.sub.1-4alkyl; R.sup.3b is
C.sub.1-4alkyl; R.sup.5 is H, or R.sup.5 and R.sup.3b are taken
together with the carbons to which they each are attached to form 3
to 6 membered cycloalkyl; R.sup.b is H, C.sub.1-4alkyl, 3 to 6
membered cycloalkyl, --C(O)R.sup.c, phenyl, or a monocyclic
heteroaryl, wherein the cycloalkyl, phenyl and monocyclic
heteroaryl, as values of R.sup.b, each are optionally substituted
with 1 to 3 groups selected from halo, C.sub.1-4alkoxy,
C.sub.1-4haloalkoxy, C.sub.1-4alkyl or C.sub.1-4haloalkyl, wherein
the alkyl, as a value of R.sup.b, is optionally substituted with 1
to 3 halo, hydroxyl, C.sub.1-4alkoxy, 3 to 6 membered cycloalkyl,
phenyl, or monocyclic heteroaryl, wherein the cycloalkyl, phenyl
and monocyclic heteroaryl as substituents of R.sup.b each are
optionally substituted with 1 to 3 groups selected from halo,
C.sub.1-4alkoxy or C.sub.1-4alkyl; and wherein the monocyclic
heteroaryl as a value of R.sup.b or a substituent of R.sup.b, in
each occurrence, is selected from the group consisting of
pyrazolyl, imidazolyl, pyridinyl, pyridazinyl, pyrazinyl and
pyrimidyl; R.sup.c is H or C.sub.1-4alkyl; R.sup.21 is halo,
C.sub.1-4alkoxy, C.sub.1-4haloalkoxy, C.sub.1-4alkyl or
C.sub.1-4haloalkyl; m is 0, 1 or 2; and n is 0 or 2, if n is 2, two
R.sup.6 attached to the same ring carbon taken together form an
oxo.
[0369] In a fifty-sixth embodiment of the invention, the compound
is represented by formula XI, or a pharmaceutically acceptable salt
thereof, wherein R.sup.2 is H; R.sup.3a is H or methyl; R.sup.3b is
methyl; R.sup.5 is H or R.sup.5 and R.sup.3b are taken together
with the carbons to which they each are attached to form
cyclopropyl; R.sup.b is H, acetyl, methyl (optionally substituted
with cyclopropyl, phenyl, fluoro-substituted phenyl,
methoxy-substituted phenyl, methyl-substituted pyrazolyl,
pyridinyl, methyl-substituted pyridinyl, methyl-substituted
isoxazole, pyrimidyl or methyl-substituted pyrimidyl), ethyl
(optionally substituted with a hydroxyl, a methoxy or two fluoro),
isopropyl, isobutyl, cyclopropyl, cyclobutyl, cyclopentyl, phenyl
(optionally substituted with fluoro or methoxy), pyrazolyl
(optionally substituted with methyl), imidazolyl, pyridinyl,
pyridazinyl, pyrazinyl or pyrimidyl; R.sup.21 is fluoro, chloro or
methoxy; and m is 0 or 1; and wherein the values of the other
variables are as defined for the first, alternative first, second,
fifty-fourth and/or fifty-fifth embodiment.
[0370] In a fifty-seventh embodiment of the invention, the compound
is represented by formula XI, or a pharmaceutically acceptable salt
thereof, wherein R.sup.1 is --CF.sub.3; and wherein the values of
the other variables are as defined for the first, alternative
first, second, fifty-fourth, fifty-fifth, and/or fifty-sixth
embodiments.
[0371] In a fifty-eighth embodiment of the invention, the compound
is represented by formula XI, or a pharmaceutically acceptable salt
thereof, wherein R.sup.1 is --CN; and wherein the values of the
other variables are as defined for the first, alternative first,
second, fifty-fourth, fifty-fifth, and/or fifty-sixth
embodiments.
[0372] In a fifty-ninth embodiment of the invention, the compound
is represented by formula XII:
##STR00022##
or a pharmaceutically acceptable salt thereof, wherein each R.sup.6
is H or both R.sup.6 taken together are an oxo; and wherein the
values of the variables are as defined for the first, alternative
first, second, fifty-fourth, fifty-fifth, fifty-sixth,
fifty-seventh, and/or fifty-eighth embodiments.
[0373] In a sixtieth embodiment of the invention, the compound is
represented by formula XIII,
##STR00023##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first,
second, fifty-fourth, fifty-fifth, fifty-sixth, fifty-seventh,
and/or fifty-eighth embodiments.
[0374] In a sixty-first embodiment of the invention, the compound
is represented by one of the following formulae:
##STR00024##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first,
second, fifty-fourth, fifty-fifth, fifty-sixth, fifty-seventh,
and/or fifty-eighth embodiments.
[0375] In a sixty-second embodiment of the invention, the compound
is represented by one of the following formulae:
##STR00025##
or a pharmaceutically acceptable salt thereof, wherein the values
of the variables are as defined for the first, alternative first,
second, fifty-fourth, fifty-fifth, fifty-sixth, fifty-seventh,
and/or fifty-eighth embodiments.
[0376] In one embodiment, the compound represented by Formula XI,
XII, XIII, XV(A), XV(B), XVI(A) or XVI(B) is not
(4aR,5R,8aR)-2-benzyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroiso-
quinoline-7-carbonitrile or
(4aS,5S,8aS)-2-benzyl-5-methyl-1,6-dioxo-8a-phenyl-3,4,4a,5-tetrahydroiso-
quinoline-7-carbonitrile.
[0377] As used herein, the term "alkyl" refers to a fully saturated
branched or unbranched hydrocarbon moiety. Unless otherwise
specified, the alkyl comprises 1 to 12 carbon atoms, preferably 1
to 8 carbon atoms, more preferably 1 to 6 carbon atoms or most
preferably 1 to 4 carbon atoms. Representative examples of alkyl
include, but are not limited to, methyl, ethyl, n-propyl,
iso-propyl, n-butyl, sec-butyl, iso-butyl, tert-butyl, n-pentyl,
isopentyl, neopentyl and n-hexyl.
[0378] As used herein, the term "alkylene" refers to a non-aromatic
divalent group, wherein the alkylene group is attached with two
.sigma.-bonds, with two saturated carbon atoms as the points of
attachment. An alkylene is a linear or branched acyclic structure
with no carbon-carbon double or triple bonds, and no atoms other
than carbon and hydrogen. The groups, --CH.sub.2-- (methylene),
--CH.sub.2CH.sub.2--, --CH.sub.2C(CH.sub.3).sub.2CH.sub.2-- and
--CH.sub.2CH.sub.2CH.sub.2--, are non-limiting examples of alkylene
groups.
[0379] As used herein, the term "alkenyl" refers to an unsaturated
hydrocarbon group which may be linear or branched and has at least
one carbon-carbon double bond. Alkenyl groups with 2-12 carbon
atoms or 2-6 carbon atoms are preferred. The alkenyl group may
contain 1, 2 or 3 carbon-carbon double bonds, or more. Preferably,
alkenyl groups contain one or two double bonds, most preferably one
double bond. Examples of alkenyl groups include ethenyl,
n-propenyl, isopropenyl, n-but-2-enyl, n-hex-3-enyl and the
like.
[0380] As used herein, the term "alkenylene" refers to a
non-aromatic divalent group, wherein the alkenylene group is
attached with two .sigma.-bonds, with two carbon atoms as points of
attachment. An alkenylene is linear or branched acyclic structure
having at least one nonaromatic carbon-carbon double bond with no
carbon-carbon triple bonds and no atoms other than carbon and
hydrogen. The groups, --CH.dbd.CH--, --CH.dbd.C(CH.sub.3)CH.sub.2--
and --CH.dbd.CHCH.sub.2--, are non-limiting examples of alkenylene
groups.
[0381] As used herein, the term "alkynyl" refers to an unsaturated
hydrocarbon group which is linear or branched and has at least one
carbon-carbon triple bond. Alkynyl groups with 2-12 carbon atoms or
2-6 carbon atoms can be preferred. The alkynyl group may contain 1,
2 or 3 carbon-carbon triple bonds, or more. Preferably, alkynyl
groups contain one or two triple bonds, most preferably one triple
bond. Examples of alkynyl groups include ethynyl, n-propynyl,
n-but-2-ynyl, n-hex-3-ynyl and the like.
[0382] As used herein, the term "alkynylene" refers to a
non-aromatic divalent group, wherein the alkynylene group is
attached with two .sigma.-bonds, with two carbon atoms as points of
attachment. An alkynylene is a linear or branched acyclic structure
having at least one carbon-carbon triple bond with no atoms other
than carbon and hydrogen. The groups, --C.ident.C--,
--C.ident.CCH.sub.2-- and --C.ident.CCH(CH.sub.3)--, are
non-limiting examples of alkynylene groups.
[0383] As used herein, the term "alkylidene" refers to the divalent
group .dbd.CRR', wherein the alkylidene group is attached with one
.sigma.-bond and one .pi.-bond, in which R and R' are independently
hydrogen, alkyl, or R and R' are taken together to represent
alkylene. Non-limiting examples of alkylidene groups include:
.dbd.CH.sub.2, .dbd.CH(CH.sub.2CH.sub.3) and
.dbd.C(CH.sub.3).sub.2.
[0384] As used herein, the term "acyl" refers to a monovalent group
with a carbon atom of a carbonyl group as the point of attachment,
further having a linear or branched, cyclo, cyclic or acyclic
structure, further having no additional atoms that are not carbon
or hydrogen, beyond the oxygen atom of the carbonyl group. The
groups, --CHO, --C(O)CH.sub.3 (acetyl, Ac), --C(O)CH.sub.2CH.sub.3,
--C(O)CH.sub.2CH.sub.2CH.sub.3, --C(O)CH(CH.sub.3).sub.2,
--C(O)CH(CH.sub.2).sub.2, --C(O)C.sub.6H.sub.5,
--C(O)C.sub.6H.sub.4CH.sub.3, --C(O)C.sub.6H.sub.4CH.sub.2CH.sub.3,
--COC.sub.6H.sub.3(CH.sub.3).sub.2 and
--C(O)CH.sub.2C.sub.6H.sub.5, are non-limiting examples of acyl
groups. The term "acyl" therefore encompasses, but is not limited
to, groups sometimes referred to as "alkyl carbonyl" and "aryl
carbonyl" groups.
[0385] As used herein, the term "alkoxy" refers to the group --OR,
in which R is a C.sub.1-12alkyl, as that term is defined above.
Non-limiting examples of alkoxy groups include: --OCH.sub.3,
--OCH.sub.2CH.sub.3, --OCH.sub.2CH.sub.2CH.sub.3,
--OCH(CH.sub.3).sub.2, --OCH(CH.sub.2).sub.2, --O-cyclopropyl,
--O-cyclobutyl, --O-cyclopentyl and --O-cyclohexyl.
[0386] The number of carbon atoms in a group is specified herein by
the prefix "C.sub.x-xx", wherein x and xx are integers. For
example, "C.sub.1-4alkyl" is an alkyl group which has from 1 to 4
carbon atoms.
[0387] As used herein, the term "halogen" or "halo" may be fluoro,
chloro, bromo or iodo.
[0388] As used herein, the term "heterocyclyl" refers to a
saturated or unsaturated, monocyclic or bicyclic (e.g., bridged,
fused or spiro ring systems) ring system which has from 3- to
12-ring members, or in particular 3- to 6-ring members or 5- to
7-ring members, at least one of which is a heteroatom, and up to 4
(e.g., 1, 2, 3 or 4) of which may be heteroatoms, wherein the
heteroatoms are independently selected from O, S and N, and wherein
C can be oxidized (e.g., C(O)), N can be oxidized (e.g., N(O)) or
quaternized, and S can be optionally oxidized to sulfoxide and
sulfone. Unsaturated heterocyclic rings include heteroaryl rings
and heterocyclic rings that is not aromatic. As used herein, the
term "heteroaryl" refers to an aromatic 5 to 12 membered monocyclic
or bicyclic ring system, having 1 to 4 heteroatoms independently
selected from O, S and N, and wherein N can be oxidized (e.g.,
N(O)) or quaternized, and S can be optionally oxidized to sulfoxide
and sulfone. In one embodiment, a heterocyclyl is a 3- to
7-membered saturated monocyclic or a 3- to 6-membered saturated
monocyclic or a 5- to 7-membered saturated monocyclic ring. In one
embodiment, an non-aromatic heterocyclyl is a 3- to 7-membered
unsaturated monocyclic or a 3- to 6-membered unsaturated monocyclic
or a 5- to 7-membered unsaturated monocyclic ring. In another
embodiment, a heterocyclyl is a 6 or -7-membered bicyclic ring. The
heterocyclyl group can be attached at a heteroatom or a carbon
atom. Examples of heterocyclyls include aziridinyl, oxiranyl,
thiiranyl, oxaziridinyl, dioxiranyl, azetidinyl, oxetanyl,
thietanyl, pyrrolidinyl, tetrahydrofuranyl, thiolanyl,
imidazolidinyl, pyrazolidinyl, oxazolidinyl, isoxazolidinyl,
thiazolidinyl, isothiazolidinyl, dioxolanyl, dithiolanyl,
oxathiolanyl, piperidinyl, tetrahydropyranyl, thianyl, piperazinyl,
morpholinyl, thiomorpholinyl, dioxanyl, dithianyl, trioxanyl,
trithianyl, azepanyl, oxepanyl, thiepanyl, dihydrofuranyl,
imidazolinyl, dihydropyranyl, and heteroaryl rings including
azirinyl, oxirenyl, thiirenyl, diazirinyl, azetyl, oxetyl, thietyl,
pyrrolyl, furanyl, thiophenyl (or thienyl), imidazolyl, pyrazolyl,
oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, furazanyl,
oxadiazolyl, thiadiazolyl, dithiazolyl, triazolyl, tetrazolyl,
pyridyl pyranyl, thiopyranyl, pyrazinyl, pyrimidyl, pyridazinyl,
oxazinyl, thiazinyl, dioxinyl, dithiinyl, oxathianyl, triazinyl,
tetrazinyl, azepinyl, oxepinyl, thiepinyl, diazepinyl, thiazepinyl,
1-oxo-pyridyl, hydantoinyl, pyrrolidinonyl, pyrrolidinyl,
tetrahydropyrimidinyl, tetrahydropyrindinyl, tetrahydrothiophenyl,
tetrahydrothiopyranyl, thienyl, valerolactamyl, and the like.
Examples of bicyclic heterocyclic ring systems include azaindolyl,
benzimidazolyl, benzo[1,3]dioxolyl, benzo[1,4]dioxinyl, benzofuryl,
benzoisoxazolyl, benzoisothiazolyl, benzothiadiazolyl,
benzothiazolyl, benzothienyl, benzotriazolyl, benzoxadiazolyl,
benzoxazolyl, cyclopentaimidazolyl, cyclopentatriazolyl,
imidazo[1,2-a]pyridyl, indazolyl, indolizinyl, indolyl,
isoquinolinyl, oxazolopyridinyl, purinyl, pyrazolo[3,4]pyrimidinyl,
pyridopyazinyl, pyridopyrimidinyl, pyrrolo[2,3]pyrimidinyl,
pyrrolopyrazolyl, pyrroloimidazolyl, pyrrolotriazolyl,
quinazolinyl, quinolinyl, tetrahydroindolyl, thiazolopyridinyl,
3-azabicyclo[3.1.0]hexanyl, 3-azabicyclo[3.1.1]heptanyl,
2-azaspiro[3.3]heptanyl, 2-oxa-6-azaspiro[3.3]heptanyl and
5-azaspiro[2.3]hexanyl.
[0389] As used herein, the term "carbocyclyl" refers to saturated,
partially unsaturated, or aromatic monocyclic or bicyclic
hydrocarbon groups of 3-12 carbon atoms, 3-6 carbon atoms or 5-7
carbon atoms. The term "carbocyclyl" encompasses cycloalkyl groups
and aromatic groups. The term "cycloalkyl" refers to completely
saturated monocyclic or bicyclic or spiro hydrocarbon groups of
3-12 carbon atoms, 3-6 carbon atoms or 5-7 carbon atoms. "Aromatic
group or "aryl" refers to an aromatic 6-12 membered monocyclic or
bicyclic ring system. Exemplary monocyclic carbocyclyl groups
include, but are not limited to, cyclopropyl, cyclobutyl,
cyclopentyl, cyclohexyl, cycloheptyl, cyclopropenyl, cyclobutenyl,
cyclopenentyl, cyclohexenyl, cycloheptenyl, cyclobutadienyl,
cyclopentadienyl, cyclohexadienyl, cycloheptadienyl, phenyl and
cycloheptatrienyl. Exemplary bicyclic carbocyclyl groups include
bicyclo[2.1.1]hexyl, bicyclo[2.2.1]heptyl, bicyclo[2.2.1]heptenyl,
tricyclo[2.2.1.0.sup.2,6]heptanyl,
6,6-dimethylbicyclo[3.1.1]heptyl,
2,6,6-trimethylbicyclo[3.1.1]heptyl, spiro[2.2]pentanyl and
spiro[3.3]heptanyl.
[0390] The term "bridged ring system," as used herein, is a ring
system that has a carbocyclyl or heterocyclyl ring wherein two
non-adjacent atoms of the ring are connected (bridged) by one or
more (preferably from one to three) atoms selected from C, N, O or
S. A bridged ring system may have from 6-7 ring members.
[0391] The term "fused ring system," as used herein, is a ring
system that has a carbocyclyl or heterocyclyl ring wherein two
adjacent atoms of the ring are connected (bridged) by one or more
(preferably from one to three) atoms selected from C, N, O or S. A
fused ring system may have from 4-10 ring members.
[0392] The term "spiro ring system," as used herein, is a ring
system that has two rings each of which are independently selected
from a carbocyclyl or a heterocyclyl, wherein the two ring
structures having one ring atom in common. Spiro ring systems have
from 5 to 7 ring members.
[0393] In cases where a compound provided herein is sufficiently
basic or acidic to form stable nontoxic acid or base salts,
preparation and administration of the compounds as pharmaceutically
acceptable salts may be appropriate. Examples of pharmaceutically
acceptable salts are organic acid addition salts formed with acids
which form a physiological acceptable anion, for example, tosylate,
methanesulfonate, acetate, citrate, malonate, tartarate, succinate,
benzoate, ascorbate, .alpha.-ketoglutarate or
.alpha.-glycerophosphate. Inorganic salts may also be formed,
including hydrochloride, sulfate, nitrate, bicarbonate and
carbonate salts.
[0394] Pharmaceutically acceptable salts may be obtained using
standard procedures well known in the art, for example by reacting
a sufficiently basic compound such as an amine with a suitable acid
affording a physiologically acceptable anion. Alkali metal (for
example, sodium, potassium or lithium) or alkaline earth metal (for
example calcium) salts of carboxylic acids can also be made.
[0395] Pharmaceutically-acceptable base addition salts can be
prepared from inorganic and organic bases. Salts from inorganic
bases can include, but are not limited to, sodium, potassium,
lithium, ammonium, calcium and magnesium salts. Salts derived from
organic bases can include, but are not limited to, salts of
primary, secondary or tertiary amines, such as alkyl amines,
dialkyl amines, trialkyl amines, substituted alkyl amines,
di(substituted alkyl) amines, tri(substituted alkyl) amines,
alkenyl amines, dialkenyl amines, trialkenyl amines, substituted
alkenyl amines, di(substituted alkenyl) amines, tri(substituted
alkenyl) amines, cycloalkyl amines, di(cycloalkyl) amines,
tri(cycloalkyl) amines, substituted cycloalkyl amines,
disubstituted cycloalkyl amine, trisubstituted cycloalkyl amines,
cycloalkenyl amines, di(cycloalkenyl) amines, tri(cycloalkenyl)
amines, substituted cycloalkenyl amines, disubstituted cycloalkenyl
amine, trisubstituted cycloalkenyl amines, aryl amines, diaryl
amines, triaryl amines, heteroaryl amines, diheteroaryl amines,
triheteroaryl amines, heterocycloalkyl amines, diheterocycloalkyl
amines, triheterocycloalkyl amines or mixed di- and tri-amines
where at least two of the substituents on the amine can be
different and can be alkyl, substituted alkyl, alkenyl, substituted
alkenyl, cycloalkyl, substituted cycloalkyl, cycloalkenyl,
substituted cycloalkenyl, aryl, heteroaryl, heterocycloalkyl and
the like. Also included are amines where the two or three
substituents, together with the amino nitrogen, form a
heterocycloalkyl and heteroaryl group. Non-limiting examples of
amines can include, isopropylamine, trimethyl amine, diethyl amine,
tri(iso-propyl) amine, tri(n-propyl) amine, ethanolamine,
2-dimethylaminoethanol, tromethamine, lysine, arginine, histidine,
caffeine, procaine, hydrabamine, choline, betaine, ethylenediamine,
glucosamine, N-alkylglucamines, theobromine, purines, piperazine,
piperidine, morpholine, N-ethylpiperidine and the like. Other
carboxylic acid derivatives can be useful, for example, carboxylic
acid amides, including carboxamides, lower alkyl carboxamides or
dialkyl carboxamides and the like.
[0396] The disclosed compounds, or pharmaceutically acceptable
salts thereof, can contain one or more asymmetric centers in the
molecule. In accordance with the present disclosure any structure
that does not designate the stereochemistry is to be understood as
embracing all the various stereoisomers (e.g., diastereomers and
enantiomers) in pure or substantially pure form, as well as
mixtures thereof (such as a racemic mixture, or an enantiomerically
enriched mixture). It is well known in the art how to prepare such
optically active forms (for example, resolution of the racemic form
by recrystallization techniques, synthesis from optically-active
starting materials, by chiral synthesis or chromatographic
separation using a chiral stationary phase). The disclosed
compounds may exist in tautomeric forms and mixtures and separate
individual tautomers are contemplated. In addition, some compounds
may exhibit polymorphism.
[0397] When a particular steroisomer (e.g., enantiomer,
diasteromer, etc.) of a compound used in the disclosed methods is
depicted by name or structure, the stereochemical purity of the
compounds is at least 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%,
97%, 99%, 99.5% or 99.9%. "Stererochemical purity" means the weight
percent of the desired stereoisomer relative to the combined weight
of all stereoisomers.
[0398] In one embodiment, any position occupied by hydrogen is
meant to include enrichment by deuterium above the natural
abundance of deuterium as well. For example, one or more hydrogen
atoms are replaced with deuterium at an abundance that is at least
3340 times greater than the natural abundance of deuterium, which
is 0.015% (i.e., at least 50.1% incorporation of deuterium), at
least 3500 (52.5% deuterium incorporation at each designated
deuterium atom), at least 4000 (60% deuterium incorporation), at
least 4500 (67.5% deuterium incorporation), at least 5000 (75%
deuterium), at least 5500 (82.5% deuterium incorporation), at least
6000 (90% deuterium incorporation), at least 6333.3 (95% deuterium
incorporation), at least 6466.7 (97% deuterium incorporation), at
least 6600 (99% deuterium incorporation), or at least 6633.3 (99.5%
deuterium incorporation). In one embodiment, hydrogen is present at
all positions at its natural abundance. The compounds or
pharmaceutically acceptable salts thereof as described herein, may
exist in tautomeric forms and mixtures and separate individual
tautomers are contemplated.
[0399] Another embodiment is a pharmaceutical composition
comprising at least one compound described herein, or a
pharmaceutically acceptable salt thereof, and at least one
pharmaceutically acceptable carrier.
[0400] The compounds provided herein can be useful to activate the
NRF2 pathway in a cell. In one embodiment, the method comprises
contacting a cell with an effective amount of a compound provided
herein, or a pharmaceutically acceptable salt thereof. In one
embodiment, the cell is contacted in vitro or in vivo. In one
embodiment, contacting the cell includes administering the compound
to a subject.
[0401] One embodiment of the invention includes a method for
activating Nrf2 in a subject in need thereof, the method comprising
administering to the subject a therapeutically effective amount of
a compound described herein, or a pharmaceutically acceptable salt
thereof, thereby activating Nrf2 in the subject.
[0402] One embodiment of the invention includes a method for
inhibiting a KEAP1 protein in a cell, the method comprising
contacting a cell with an effective amount of a compound provided
herein, or a pharmaceutically acceptable salt thereof, thereby
inhibiting a KEAP1 protein in the cell.
[0403] One embodiment of the invention includes a method for
increasing a cell's ability to resist a stress, the method
comprising administering to the subject a therapeutically effective
amount of a compound described herein, or a pharmaceutically
acceptable salt thereof, thereby increasing the cell's ability to
resist the stress. The stress is selected from the group consisting
of heat shock, oxidative stress, osmotic stress, DNA damage,
inadequate salt level, inadequate nitrogen level and inadequate
nutrient level.
[0404] One embodiment of the invention includes a method for
mimicking the effect of nutrient restriction on the cell, the
method comprising administering to the subject a therapeutically
effective amount of a compound described herein, or a
pharmaceutically acceptable salt thereof, thereby mimicking the
effect of the nutrient restriction on the cell.
[0405] One embodiment of the invention includes a method for
promoting survival of a eukaryotic cell (e.g., a mammalian cell) or
increasing the lifespan of the cell, the method comprising
administering to the subject a therapeutically effective amount of
a compound provided herein, or a pharmaceutically acceptable salt
thereof, thereby promoting survival of the eukaryotic cell or
increasing the lifespan of the cell.
[0406] One embodiment of the invention includes a method for
treating a disease associated with cell death in a subject in need
thereof, the method comprising administering to the subject a
therapeutically effective amount of a compound described herein, or
a pharmaceutically acceptable salt thereof, thereby treating the
disease associated with cell death in the subject.
[0407] One embodiment of the invention includes a method for
treating a disease caused by oxidative stress in a subject in need
thereof, the method comprising administering to the subject a
therapeutically effective amount of a compound provided herein, or
a pharmaceutically acceptable salt thereof, thereby treating the
disease caused by oxidative stress in the subject.
[0408] One embodiment of the invention includes a method for
treating a disorder in a subject in need thereof, wherein the
disorder is selected from the group consisting of a
neurodegenerative disease, inflammation/an inflammatory disease, an
autoimmune disease, an ischemic fibrotic disease, a cancer,
premature aging, a cardiovascular disease, a liver disease, a
hemoglobinopathy, thalassemia (e.g. beta-thalassemia) and a
metabolic disorder, the method comprising administering to the
subject a therapeutically effective amount of a compound provided
herein, or a pharmaceutically acceptable salt thereof, thereby
treating the disorder in the subject. Hemoglobinopathy includes
sickle cell disease (SCD). In one embodiment, the disorder is
sickle cell disease or thalassemia (e.g. beta-thalassemia). More
specifically, the disorder is sickle cell disease.
[0409] In one embodiment, the neurodegenerative disease can be
selected from the group consisting of Alzheimer's disease (AD),
Parkinson's disease (PD), Huntington disease (HD) and other
CAG-triplet repeat (or polyglutamine) diseases, amyotrophic lateral
sclerosis (ALS; Lou Gehrig's disease), diffuse Lewy body disease,
chorea-acanthocytosis, primary lateral sclerosis, multiple
sclerosis (MS), frontotemporal dementia, Friedreich's ataxia and
epilepsy (repression of microglia activation). More preferably, the
neurodegenerative disease is Parkinson disease or amyotrophic
lateral sclerosis.
[0410] In one embodiment, the inflammatory disease can be selected
from the group consisting of chronic cholecystitis, aortic valve
stenosis, restenosis, a skin disease, a pulmonary diseases and a
disease of the airway, inflammatory uveitis, atherosclerosis,
arthritis, conjunctivitis, pancreatitis, a chronic kidney disease
(CDK), an inflammatory condition associated with diabetes, an
ischemia, a transplant rejection, a CD14 mediated sepsis, a
non-CD14 mediated sepsis, Behcet's syndrome, ankylosing
spondylitis, sarcoidosis and gout. In some embodiments, the skin
disease is selected from the group consisting of rash, contact
dermatitis and atopic dermatitis. In one embodiment, the pulmonary
disease and disease of the airway is selected from the group
consisting of Adult Respiratory Disease Syndrome (ARDS), Chronic
Obstructive Pulmonary Disease (COPD), pulmonary fibrosis, an
interstitial lung disease, asthma, chronic cough, allergic
rhinitis, bronchiectasis and bronchitis. In one embodiment, the
inflammatory condition associated with diabetes is selected from a
diabetic retinopathy, a diabetic cardiomyopathy and a
diabetes-induced aortic damage.
[0411] In one embodiment, the autoimmune disease is selected from
the group consisting of psoriasis, inflammatory bowel disease,
rheumatoid arthritis, systemic lupus erythematosus, multiple
sclerosis, type 1 diabetes, systemic sclerosis and Sjogren's
syndrome. In one embodiment, the inflammatory bowel disease is
Crohn's disease or ulcerative colitis. In one embodiment, the
autoimmune disease is type 1 diabetes. Alternatively, the
autoimmune disease is multiple sclerosis.
[0412] In one embodiment, the ischemic fibrotic disease is selected
from the group consisting of stroke, acute lung injury, acute
kidney injury, ischemic cardiac injury, acute liver injury and
ischemic skeletal muscle injury.
[0413] In one embodiment, the cancer is selected from the group
consisting of prostate cancer, bladder cancer, ovarian cancer,
breast cancer (e.g., breast cancer with mutated BRCA1), head and
neck cancer, chronic lymphocytic leukemia, thymus cancer,
hepatocellular carcinoma, colorectal cancer, colon cancer, skin
cancer, pancreatic cancer, leukemia, lung cancer, glioblastoma,
cervical cancer, lymphoma, Waldenstrom's macroglobulinemia and
multiple myeloma.
[0414] In one embodiment, the cardiovascular disease can be
selected from the group consisting of pulmonary arterial
hypertension, systemic hypertension, coronary artery disease,
peripheral artery disease and atherosclerosis.
[0415] In one embodiment, the liver disease can be selected from
the group consisting of non-alcoholic steatohepititis (NASH),
alcoholic liver disease, primary biliary cirrhosis and primary
sclerosing cholangitis.
[0416] In one embodiment, the hemoglobinopathy is a condition that
involves a mutation in human beta-globin or an expression control
sequence thereof, such as sickle cell disease (SCD) or
beta-thalassemia. SCD typically arises from a mutation substituting
thymine for adenine in the sixth codon of the beta-chain gene of
hemoglobin (i.e., GAG to GTG of the HBB gene). This mutation causes
glutamate to valine substitution in position 6 of the Hb beta
chain. The resulting Hb, referred to as HbS, has the physical
properties of forming polymers under deoxy conditions. SCD is
typically an autosomal recessive disorder. Beta-Thalassemias are a
group of inherited blood disorders caused by a variety of
mutational mechanisms that result in a reduction or absence of
synthesis of .beta.-globin and leading to accumulation of
aggregates of unpaired, insoluble .alpha.-chains that cause
ineffective erythropoiesis, accelerated red cell destruction, and
severe anemia. Subjects with beta-thalassemia exhibit variable
phenotypes ranging from severe anemia to clinically asymptomatic
individuals. The genetic mutations present in .beta. thalassemias
are diverse, and can be caused by a number of different mutations.
The mutations can involve a single base substitution or deletions
or inserts within, near or upstream of the .beta. globin gene. For
example, mutations occur in the promoter regions preceding the
beta-globin genes or cause production of abnormal splice
variants.
[0417] Examples of thalassemias include thalassemia minor,
thalassemia intermedia, and thalassemia major.
[0418] Thalassemia minor refers to thalassemia where only one of
beta-globin alleles bears a mutation. Individuals typically suffer
from microcytic anemia. Detection usually involves lower than
normal MCV value (<80 fL) plus an increase in fraction of
Hemoglobin A2 (>3.5%) and a decrease in fraction of Hemoglobin A
(<97.5%). Genotypes can be .beta.+/.beta. or
.beta.-0/.beta..
[0419] Thalassemia intermedia refers to a thalassemia intermediate
between the major and minor forms. Affected individuals can often
manage a normal life but may need occasional transfusions, e.g., at
times of illness or pregnancy, depending on the severity of their
anemia. Genotypes can be .beta.+/.beta.+ or .beta.-0/.beta..
[0420] Thalassemia major refers to a thalassemia where both
beta-globin alleles have thalassemia mutations. This is a severe
microcytic, hypochromic anemia. If left untreated, it causes
anemia, splenomegaly, and severe bone deformities and typically
leads to death before age 20. Treatment consists of periodic blood
transfusion; splenectomy if splenomegaly is present, and treatment
of transfusion-caused iron overload. Cure is possible by bone
marrow transplantation. Cooley's anemia is named after Thomas
Benton Cooley. Genotypes include .beta.+/.beta.-0 or
.beta.-0/.beta.-0 or .beta.+/.beta.+.
[0421] Although carriers of sickle cell trait do not suffer from
SCD, individuals with one copy of HbS and one copy of a gene that
codes for another abnormal variant of hemoglobin, such as HbC or Hb
beta-thalassemia, have a less severe form of the disease. For
example, another specific defect in beta-globin causes another
structural variant, hemoglobin C (HbC). Hemoglobin C (abbreviated
as Hb C or HbC) is an abnormal hemoglobin in which substitution of
a glutamic acid residue with a lysine residue at the 6th position
of the .beta.-globin chain has occurred. A subject that is a double
heterozygote for HbS and HbC (HbSC disease) is typically
characterized by symptoms of moderate clinical severity.
[0422] Another common structural variant of beta-globin is
hemoglobin E or hemoglobin E (HbE). HbE is an abnormal hemoglobin
in which substitution of a glutamic acid residue with a lysine
residue at the 26th position of the .beta.-globin chain has
occurred. A subject that is a double heterozygote for HbS and HbE
has HbS/HbE syndrome, which usually causes a phenotype similar to
HbS/b+ thalassemia, discussed below.
[0423] Some mutations in the beta-globin gene can cause other
structural variations of hemoglobin or can cause a deficiency in
the amount of .beta.-globin being produced. These types of
mutations are referred to as beta-thalassemia mutations.
[0424] The absence of beta-globin is referred to as beta-zero
(.beta.-0) thalassemia. A subject that is a double heterozygote for
HbS and .beta.-0 thalassemia (i.e., HbS/.beta.-0 thalassemia) can
suffer symptoms clinically indistinguishable from sickle cell
anemia.
[0425] A reduced amount of beta-globin is referred to as
.beta.-plus (.beta.+) thalassemia. A subject that is a double
heterozygote for HbS and .beta.+ thalassemia (i.e., HbS/.beta.+
thalassemia) can have mild-to-moderate severity of clinical
symptoms with variability among different ethnicities.
[0426] Rare combinations of HbS with other abnormal hemoglobins
include HbD Los Angeles, G-Philadelphia, HbO Arab, and others.
[0427] Nrf2 upregulates fetal hemoglobin which alleviates some of
the symptoms of these disorders. Therefore, in some embodiments,
the disclosed compositions are used to treated SCD or thalassemia
(e.g. beta-thalassemia).
[0428] In some embodiments, the disclosed compositions and methods
are used to treating a subject with an HbS/.beta.-0 genotype, an
HbS/.beta.+ genotype, an HBSC genotype, an HbS/HbE genotype, an HbD
Los Angeles genotype, a G-Philadelphia genotype, or an abHbO Arab
genotype.
[0429] In some embodiments, the compositions disclosed herein are
administered to a subject in an effective amount to treat one or
more symptoms of sickle cell disease, a thalassemia (e.g.
beta-thalassemia), or a related disorder. In subjects with sickle
cell disease, or a related disorder, physiological changes in RBCs
can result in a disease with the following signs: (1) hemolytic
anemia; (2) vaso-occlusive crisis; and (3) multiple organ damage
from microinfarcts, including heart, skeleton, spleen, and central
nervous system. Thalassemia can include symptoms such as anemia,
fatigue and weakness, pale skin or jaundice (yellowing of the
skin), protruding abdomen with enlarged spleen and liver, dark
urine, abnormal facial bones and poor growth, and poor
appetite.
[0430] Retinopathy due to SCD can also be treated by administering
an effective amount of a compound according to any one of described
herein. Sickle retinopathy occurs when the retinal blood vessels
get occluded by sickle red blood cells and the retina becomes
ischemic, angiogenic factors are made in retina. In sickle cell
disease, this occurs mostly in the peripheral retina, which does
not obscure vision at first. Eventually, the entire peripheral
retina of the sickle cell patient becomes occluded and many
neovascular formations occur. Administration of a compound
according to any one of described herein can reduce or inhibit the
formation of occlusions in the peripheral retina of a sickle cell
patient.
[0431] In one embodiment, the metabolic disorder is diabetes,
obesity, metabolic syndrome or hypertension. In particular, the
diabetes is type 1 diabetes, type 2 diabetes or gestational
diabetes.
[0432] As used herein, the term "subject" and "patient" may be used
interchangeably, and means a mammal in need of treatment, e.g.,
companion animals (e.g., dogs, cats and the like), farm animals
(e.g., cows, pigs, horses, sheep, goats and the like) and
laboratory animals (e.g., rats, mice, guinea pigs and the like).
Typically, the subject is a human in need of treatment.
[0433] As used herein, the term "treating" or `treatment" refers to
obtaining desired pharmacological and/or physiological effect. The
effect can be therapeutic, which includes achieving, partially or
substantially, one or more of the following results: partially or
totally reducing the extent of the disease, disorder or syndrome;
ameliorating or improving a clinical symptom or indicator
associated with the disorder; and delaying, inhibiting or
decreasing the likelihood of the progression of the disease,
disorder or syndrome.
[0434] The dose of a compound provided herein, or a
pharmaceutically acceptable salt thereof, administered to a subject
can be 10 .mu.g-5,000 mg; 10 .mu.g to 1 mg; 1 to 500 mg; or 500 to
5,000 mg.
[0435] Administering a compound described herein, or a
pharmaceutically acceptable salt thereof, to a mammal comprises any
suitable delivery method. Administering a compound described
herein, or a pharmaceutically acceptable salt thereof, to a mammal
includes administering a compound described herein, or a
pharmaceutically acceptable salt thereof, topically, enterally,
parenterally, transdermally, transmucosally, via inhalation,
intracisternally, epidurally, intravaginally, intravenously,
intramuscularly, subcutaneously, intradermally and intravitreally
to the mammal. Administering a compound described herein, or a
pharmaceutically acceptable salt thereof, to a mammal also includes
administering topically, enterally, parenterally, transdermally,
transmucosally, via inhalation, intracisternally, epidurally,
intravaginally, intravenously, intramuscularly, subcutaneously,
intradermally and intravitreally to a mammal a compound that
metabolizes within or on a surface of the body of the mammal to a
compound described herein, or a pharmaceutically acceptable salt
thereof.
[0436] Thus, a compound or pharmaceutically acceptable salt thereof
as described herein, may be systemically administered, e.g.,
orally, in combination with a pharmaceutically acceptable vehicle
such as an inert diluent or an assimilable edible carrier. They may
be enclosed in hard or soft shell gelatin capsules, may be
compressed into tablets, or may be incorporated directly with the
food of the patient's diet. For oral therapeutic administration,
the compound or pharmaceutically acceptable salt thereof as
described herein may be combined with one or more excipients and
used in the form of ingestible tablets, buccal tablets, troches,
capsules, elixirs, suspensions, syrups or wafers and the like. Such
compositions and preparations should contain at least about 0.1% of
active compound. The percentage of the compositions and
preparations may, of course, be varied and may conveniently be
between about 2 to about 60% of the weight of a given unit dosage
form. The amount of active compound in such therapeutically useful
compositions can be such that an effective dosage level will be
obtained.
[0437] The tablets, troches, pills, capsules and the like can
include the following: binders such as gum tragacanth, acacia, corn
starch and gelatin; excipients such as dicalcium phosphate; a
disintegrating agent such as corn starch, potato starch, alginic
acid and the like; a lubricant such as magnesium stearate; a
sweetening agent such as sucrose, fructose, lactose and aspartame;
and a flavoring agent.
[0438] The active compound may also be administered intravenously
or intraperitoneally by infusion or injection. Solutions of the
active compound or its salts can be prepared in water, optionally
mixed with a nontoxic surfactant.
[0439] Exemplary pharmaceutical dosage forms for injection or
infusion can include sterile aqueous solutions or dispersions and
sterile powders comprising the active ingredient which are adapted
for the extemporaneous preparation of sterile injectable or
infusible solutions or dispersions. In all cases, the ultimate
dosage form should be sterile, fluid and stable under the
conditions of manufacture and storage.
[0440] Sterile injectable solutions can be prepared by
incorporating the active compound in the required amount in the
appropriate solvent with various of the other ingredients
enumerated above, as required, followed by filter sterilization. In
the case of sterile powders for the preparation of sterile
injectable solutions, the preferred methods of preparation can be
vacuum drying and the freeze drying techniques, which can yield a
powder of the active ingredient plus any additional desired
ingredient present in the previously sterile-filtered
solutions.
[0441] Exemplary solid carriers can include finely divided solids
such as talc, clay, microcrystalline cellulose, silica, alumina and
the like. Useful liquid carriers include water, alcohols, glycols
and water-alcohol/glycol blends, in which the compounds or
pharmaceutically acceptable salts thereof as described herein can
be dissolved or dispersed at effective levels, optionally with the
aid of non-toxic surfactants.
[0442] Useful dosages of a compound or pharmaceutically acceptable
salt thereof as described herein can be determined by comparing
their in vitro activity and in vivo activity in animal models.
Methods for the extrapolation of effective dosages in mice and
other animals, to humans are known to the art; for example, see
U.S. Pat. No. 4,938,949, which is incorporated by reference in its
entirety.
[0443] The amount of a compound or pharmaceutically acceptable salt
thereof as described herein, required for use in treatment can vary
not only with the particular salt selected but also with the route
of administration, the nature of the condition being treated and
the age and condition of the patient and can be ultimately at the
discretion of the attendant physician or clinician. In general,
however, a dose can be in the range of from about 0.1 to about 10
mg/kg of body weight per day.
[0444] The a compound or pharmaceutically acceptable salt thereof
as described herein can be conveniently administered in unit dosage
form; for example, containing 0.01 to 10 mg or 0.05 to 1 mg, of
active ingredient per unit dosage form. In some embodiments, a dose
of 5 mg/kg or less can be suitable.
[0445] The desired dose may conveniently be presented in a single
dose or as divided doses administered at appropriate intervals.
[0446] The disclosed method can include a kit comprising a compound
or pharmaceutically acceptable salt thereof as described herein and
instructional material which can describe administering a compound
or pharmaceutically acceptable salt thereof as described herein or
a composition comprising a compound or pharmaceutically acceptable
salt thereof as described herein to a cell or a subject. This
should be construed to include other embodiments of kits that are
known to those skilled in the art, such as a kit comprising a (such
as sterile) solvent for dissolving or suspending a compound or
pharmaceutically acceptable salt thereof as described herein or
composition prior to administering a compound or pharmaceutically
acceptable salt thereof as described herein or composition to a
cell or a subject. In some embodiments, the subject can be a
human.
EXAMPLE
[0447] The terms "Ent1" and Ent2" do not infer structural
assignment as to one enantiomer or the other. The absolute
configuration of final compounds was only determined in certain
instances as described below:
Key:
[0448] A: Absolute configuration determined by x-ray
crystallography and/or circular dichroism [0449] B: Absolute
configuration assigned by comparison to a class A compound or
derived from a common intermediate in the synthesis of a class A
compound [0450] C: Absolute configuration assigned based on
literature precedent [0451] D: Absolute configuration unknown
TABLE-US-00001 [0451] Stereochemical Compound Determination 12-Ent1
A 12-Ent2 A, B 12-JEnt1 D 12-JEnt2 D 13-Ent1 D 13-Ent2 D 14-Ent1 D
14-Ent2 D 15-Ent1 D 15-Ent2 D 16-Ent1 D 16-Ent2 D 17-Ent1 D 17-Ent2
D 18-Ent1 D 18-Ent2 D 19-Ent1 D 19-Ent2 D 20-Ent1 D 20-Ent2 D
21-Ent1 D 21-Ent2 D 22-Ent1 D 22-Ent2 D 23-Ent1 D 23-Ent2 D 24-Ent1
D 24-Ent2 D 25-Ent1 D 25-Ent2 D 26-Ent1 D 26-Ent2 D 27-Ent1 D
27-Ent2 D 28-Ent1 D 28-Ent2 D 29-Ent1 D 29-Ent2 D 30-Ent1 D 30-Ent2
D 31-Ent1 D 31-Ent2 D 32-Ent1 D 32-Ent2 D 33-Ent1 D 33-Ent2 D
34-Ent1 D 34-Ent2 D 35-Ent1 D 35-Ent2 D 36-Ent1 D 36-Ent2 D 37-Ent1
D 37-Ent2 D 38-Ent1 D 38-Ent2 D 39-Ent1 B 46-Ent1 D 46-Ent2 D
47-Ent1 B 48-Ent1 D 48-Ent2 D 49-Ent1 D 50-Ent1 D 51-Ent1 C 51-Ent2
C 52-Ent1 C 52-Ent2 C 53-Ent1 C 53-Ent2 C 54 B 55 B 56-Ent1 D
56-Ent2 D 57-Ent1 D 57-Ent2 D 58-Ent1 D 58-Ent2 D 59 B 60-Ent1 D
60-Ent2 D 61-Ent1 D 61-Ent2 D 62-Ent1 B 63 B 64 B 65-Ent1 D 65-Ent2
D 66 D 67 D 69-Ent1 D 69-Ent2 D 70-Ent1 A 70-Ent2 B 71-Ent1 C
71-Ent2 C 72-Ent1 B 73-Ent1 B 74-Ent1 B 75-Ent1 B 76-Ent1 B 77-Ent1
D 77-Ent2 D 78-Ent1 D 78-Ent2 D 79 B 80 B 81-Ent1 C 82-Ent1 C
83-Ent1 B 84-Ent1 D 84-Ent2 D 85-Ent1 D 85-Ent2 D 86-Ent1 D 86-Ent2
D 87-Ent1 D 87-Ent2 D 88-Ent1 D 88-Ent2 D 89-Ent1 D 89-Ent2 D
90-Ent1 D 90-Ent2 D 91-Ent1 D 91-Ent2 D 92-Ent1 D 92-Ent2 D 93-Ent1
D 93-Ent2 D 94-Ent1 D 94-Ent2 D 95-Ent1 D 95-Ent2 D 96-Ent1 D
96-Ent2 D 97-Ent1 D 97-Ent2 D 98-Ent1 D 98-Ent2 D 99-Ent1 D 99-Ent2
D 100-Ent1 D 100-Ent2 D 101-Ent1 D 101-Ent2 D 102-Ent1 D 102-Ent2 D
103-Ent1 D 103-Ent2 D 104-Ent1 D 105-Ent1 D 105-Ent2 D 106-Ent1 D
106-Ent2 D 107-Ent1 D 107-Ent2 D 108-Ent1 D 108-Ent2 D 109-Ent1 D
109-Ent2 D 110-Ent1 D 110-Ent2 D 111-Ent1 D 111-Ent2 D 112-Ent1 D
112-Ent2 D 113-Ent1 D 113-Ent2 D 114-Ent1 D 114-Ent2 D 115-Ent1 D
115-Ent2 D 116-Ent1 D 116-Ent2 D 117-Ent1 D 117-Ent2 D 118-Ent1 D
118-Ent2 D 120-Ent1 D 120-Ent2 D 121-Ent1 D 121-Ent2 D 122-Ent1 D
122-Ent2 D 123-Ent1 D 123-Ent2 D 124-Ent1 D 124-Ent2 D 125-Ent1 D
125-Ent2 D 126-Ent1 D 126-Ent2 D 127-Ent1 D 127-Ent2 D 128-Ent1 D
128-Ent2 D 129-Ent1 D 129-Ent2 D 130-Ent1 D 130-Ent2 D 131-Ent1 D
131-Ent2 D 132-Ent1 D 132-Ent2 D 133-Ent1 D 133-Ent2 D 134-Ent1 D
134-Ent2 D 135-Ent1 D 135-Ent2 D 136-Ent1 D 136-Ent2 D 137-Ent1 D
137-Ent2 D 138-Ent1 D 138-Ent2 D 149 B 150-Ent1 D 150-Ent2 D
151-Ent1 D 151-Ent2 D 152-Ent1 D 152-Ent2 D 153-Ent1 D 153-Ent2 D
154-Ent1 D 154-Ent2 D 155-Ent1 B 155-Ent2 B 156 B 159 D 161-Ent1 D
161-Ent2 D 163-Ent1 D 163-Ent2 D 164-Ent1 D 164-Ent2 D 165-Ent1 D
165-Ent2 D 166 C 167 C 168-Ent1 B
Example 1. Synthesis of Compounds 12-Ent1 and 12-Ent2
##STR00026##
[0452] Preparation of Compound 12-B
[0453] Compound 12-A (20 g, 98 mmol, 1.0 eq.) in 200 mL of MeOH was
added at -5.degree. C. to a solution of MeONa which was made by 2.5
g of Na (1.1 eq.) in 100 mL of MeOH. After 1 hour at -5.degree. C.,
compound Ethyl vinyl ketone (14.8 mL, 147.6 mmol, 1.5 eq.) in 50 mL
of MeOH was added dropwise and the reaction mixture was stirred for
4 hours at -5.degree. C. TLC (PE/EA=5/1) showed the starting
material was remained and new spot was detected. The mixture was
poured into 50 mL of water, concentrated and the residue was
extracted with EA (50 mL.times.3), the organic layer was dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated, the residue
was purified by chromatography (PE/EA=30/1) on silica gel to give
12 g of compound 12-B (yield .about.63.5%) as a yellow oil.
[0454] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.35-7.23 (m,
5H), 3.56 (d, J=13.2 Hz, 1H), 3.39 (d, J=13.6 Hz, 1H), 3.04-3.00
(m, 1H), 2.61-2.40 (m, 6H), 2.05-1.98 (m. 1H), 1.78-1.73 (m, 4H),
1.57-1.51 (m, 1H), 1.34 (s, 3H).
Preparation of Compound 12-C
[0455] A solution of t-BuOK (22.3 mL, 22.3 mmol, 1.5 eq, 1 M in
THF) was added dropwise to a solution of compound 12-B (4 g, 14.9
mmol, 1.0 eq.) in 30 mL of THF at 0.degree. C. After 0.5 hour, MeI
(1.4 mL, 22.3 mmol, 1.5 eq.) in 10 mL of THF was added dropwise to
the mixture. The mixture was stirred at 20.degree. C. for 1.5 hour.
The mixture was concentrated and the residue was purified by
Prep-HPLC (TFA) to give 1.8 g of impure compound 12-C which
contained the known byproduct. An 100 mg aliquot of impure 12-C was
purified by Prep-TLC (PE/EA=8/1) for characterization purposes.
[0456] LCMS: (M+H: 284.2)
[0457] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.35-7.22 (m,
5H), 5.50 (s, 1H), 3.68 (d, J=12.8 Hz, 1H), 3.46-3.34 (m, 1H),
2.78-2.74 (m, 1H), 2.52-2.47 (m, 3H), 1.97 (d, J=8.0 Hz, 1H),
1.76-1.68 (m, 1H), 1.58-1.50 (m, 2H), 1.22 (d, J=9.6 Hz, 6H), 1.15
(s, 3H).
Preparation of Compound 12-D
[0458] Lithium Aluminum Hydride (161 mg, 4.2 mmol, 1.2 eq.) was
added in portions to compound 12-C (1 g, 3.5 mmol, 1.0 eq.) in THF
(20 mL) at 0.degree. C., then the mixture was stirred at
20-23.degree. C. for 2 hours. TLC (PE/EA=8/1) showed the starting
material was consumed completely. The reaction was quenched by
addition of 0.161 mL of water, 0.161 mL of aqueous NaOH (15%) and
0.483 mL of water in turn to the reaction mixture. The reaction
mixture was filtered and the filter cake was washed with ethyl
acetate. The filtrate was concentrated to give 940 mg of compound
12-D (crude) as a yellow oil which was used directly in next step
without further purification.
[0459] LCMS: (M+H: 285.9)
Preparation of Compounds 12-E and 12-F
[0460] Pd(OH).sub.2/C (200 mg, 20%, dry) was added to a mixture of
compound 12-D (940 mg, 3.3 mmol, 1.0 eq.) and Boc.sub.2O (863 mg,
3.96 mmol, 1.2 eq.) in EtOH (30 mL) at 20-23.degree. C., then the
mixture was stirred at 20-23.degree. C. under H.sub.2 balloon
(.about.15 psi) for 18 hours. TLC (PE/EA=5/1) showed the starting
material was consumed completely. Filtered and the filtrate was
concentrated, the residue was purified by chromatography
(PE/EA=10/1) on silica gel to give a mixture of compounds 12-E and
12-F (.about.750 mg).
[0461] LCMS: (M-56+H: 242.0, 240.0)
Preparation of Compound 12-E
[0462] Pd(OH).sub.2/C (200 mg, 20%, dry) was added to a mixture of
compound 12-E and 12-F (750 mg mixture) in EtOH (30 mL), then the
mixture was stirred at 22-24.degree. C. under H.sub.2 balloon
(.about.15 psi) for 3 days. The mixture was filtered and
concentrated to give compound 12-E (640 mg, yield .about.85%) as a
slightly yellow oil which was used directly in next step without
further purification.
[0463] LCMS: (M-56+H: 242.0)
Preparation of Compound 12-G
[0464] Dess-Martin reagent (1.1 g, 2.589 mmol, 1.2 eq.) was added
in portions to compound 12-E (640 mg, 2.15 mmol, 1.0 eq.) in 20 mL
of DCM at 26-28.degree. C., then the mixture was stirred at this
temperature for 1 hour. TLC (PE/EA=5/1) showed the starting
material was consumed completely. The reaction was quenched by
NaHCO.sub.3 (aq), extracted with DCM (10 mL.times.3), dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated. The residue
was purified by chromatography (PE/EA=10/1) on silica gel to give
about 600 mg of compound 12-G (yield 94%) as a white solid.
[0465] LCMS: (M-100+H: 195.9)
[0466] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 4.34-4.21 (m,
1H), 3.88-3.71 (m, 1H), 2.68-2.64 (m, 2H), 2.37-2.27 (m, 2H),
1.63-1.42 (m, 14H), 1.28-0.84 (m, 9H).
Preparation of Compound 12-H
[0467] LDA (0.37 mL, 0.74 mmol, 2 M in THF, 1.1 eq.) was added
dropwise to a solution of compound 12-G (200 mg, 0.68 mmol, 1.0
eq.) in 10 mL of THF at -70.degree. C., after 1 hour at this
temperature, TsCN (135 mg, 0.74 mmol, 1.1 eq.) in 1 mL of THF was
added to the mixture at -70.degree. C., and the mixture was stirred
at -70.degree. C. for another 1 hour. TLC (PE/EA=3/1) showed the
starting material remained and a new spot was detected. The
reaction was quenched with 2 mL of NH.sub.4Cl, 10 mL of water was
added, and the mixture was extracted with EA (10 mL.times.3). The
organic layer was dried over anhydrous Na.sub.2SO.sub.4, filtered
and concentrated, the residue was purified by prep-TLC (PE/EA=3/1)
to give about 60 mg of compound 12-H (yield .about.28%) as a white
solid.
[0468] LCMS: (M-56+42: 306.1)
Preparation of Compound 12-I
[0469] A mixture of compound 12-H (60 mg, 0.19 mmol, 1.0 eq.) and
DDQ (64 mg, 0.28 mmol, 1.5 eq.) in 3 mL of toluene was stirred at
reflux for 2 hours. The mixture was filtered and the filtrate was
concentrated. The residue was purified by prep-TLC (PE/EA=3/1) to
give about 25 mg of 12-I (yield .about.41.7%).
[0470] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.37 (s, 1H),
4.36-3.88 (m, 2H), 2.61-2.49 (m, 2H), 1.79-1.75 (m, 1H), 1.64-1.42
(m, 2H), 1.40 (s, 9H), 1.15 (d, J=4.0 Hz, 6H), 1.03 (s, 3H).
Preparation of Compound 12-J
[0471] Compound 12-I (200 mg, 0.63 mmol, 1.0 eq) in DCM/TFA (2/0.4
mL) was stirred at .about.22.degree. C. for 3 hours. TLC
(PE/EA=3/1) showed the starting material was consumed completely.
The solvent was removed and the residue was used directly in next
step without further purification (.about.350 mg crude).
Preparation of Compounds 12-Ent1 and 12-Ent2
[0472] Triethylamine (0.53 mL, 3.78 mmol, 6.0 eq) was added to
crude compound 12-J (191 mg in theory, 350 mg crude, 0.63 mmol, 1.0
eq) in 2 mL of DCM, then acetyl chloride (65 uL, 0.945 mmol, 1.5
eq.) was added in one portion. The mixture was stirred at
22.degree. C. for 1 hour under N.sub.2. TLC (EA) showed the
starting material was consumed completely, the mixture was purified
by prep-TLC (EA) and separated by SFC (Column: AD 250 mm.times.30
mm, 5 um; Condition: Neu-ETOH; Begin B: 25%; Flow Rate: 70 mL/min)
to give 12-Ent1 (40 mg, Rt=3.416 min) and 12-Ent2 (39.3 mg,
Rt=4.095 min) as white solids. The absolute stereochemistry was not
assigned.
Data for 12-Ent1:
[0473] HPLC: (Purity: 98.13%)
[0474] LCMS: (M+H: 261.0)
[0475] SFC: (ee: 100%)
[0476] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.38 (d, J=17.2
Hz, 1H), 4.84 (d, J=13.6 Hz, 0.37H), 4.56 (d, J=12.8 Hz, 0.68H),
3.99-3.95 (m, 0.69H), 3.56 (d, J=12.8 Hz, 0.41H), 3.04-2.95 (m,
1H), 2.37-2.34 (m, 1H), 2.10-2.06 (m, 3H), 1.88-1.84 (m, 1H),
1.63-1.59 (m, 2H), 1.19-1.14 (m, 6H), 1.04 (s, 3H).
Data for 12-Ent2:
[0477] HPLC: (Purity: 96.86%)
[0478] LCMS: (M+H: 261.1)
[0479] SFC: (ee: 99.5%)
[0480] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.38 (d, J=17.6
Hz, 1H), 4.84 (d, J=13.2 Hz, 0.51H), 4.56 (d, J=12.8 Hz, 0.85H),
3.97 (d, J=13.2 Hz, 0.80H), 3.56 (d, J=12.8 Hz, 0.61H), 3.05-2.94
(m, 1H), 2.37-2.10 (m, 1H), 2.07 (d, J=8.4 Hz, 3H), 1.87-1.85 (m,
1H), 1.67-1.56 (m, 2H), 1.19-1.14 (m, 6H), 1.04 (s, 3H).
Determination of Absolute Stereochemistry of 12-Ent1:
[0481] The absolute stereochemistry was determined by a Vibrational
Circular Dichroism study performed by Biotools, Inc. (Jupiter,
Fla.). The absolute stereochemistry of 12-Ent1 was also determined
by Single Crystal X-Ray Diffraction performed by Crystallographic
Resources, Inc. (Dewitt Mich.). Based on the agreement of both
methods, 12-Ent1 was determined to be as shown below:
##STR00027##
Preparation of Compounds 12-JEnt1 and 12-JEnt2
##STR00028##
[0483] Racemic compound 12-J was separated by SFC (Column: C2 250
mm.times.30 mm, 10 um; Condition: Base-MeOH; Begin B: 45%;
FlowRate: 80 mL/min) to give 12-JEnt1 (51.9 mg, Rt=6.15 min) and
44.9 mg of 12-JEnt2 (44.9 mg, Rt=7.78 min) as yellow solids. The
absolute stereochemistry was not determined.
Data for 12-JEnt1
[0484] HPLC: (Purity: 97.78%)
[0485] LCMS: (M+1: 219.1)
[0486] SFC: (99.63%)
[0487] .sup.1H NMR: (400 MHz, MeOD-d.sub.4) .delta.: 7.75 (s, 1H),
3.44 (d, J=39.2 Hz, 1H), 3.35 (d, J=6.4 Hz, 1H), 3.08-3.02 (m, 2H),
2.25-2.21 (m, 1H), 1.97-1.92 (m, 2H), 1.44 (s, 3H), 1.24 (s, 3H),
1.13 (s, 3H).
Data for 12-JEnt2:
[0488] HPLC: (Purity: 94.56%)
[0489] LCMS: (M+1: 219.1)
[0490] SFC: (98.87%)
[0491] .sup.1H NMR: (400 MHz, MeOD-d.sub.4) .delta.: 7.75 (s, 1H),
3.53-3.47 (m, 1H), 3.36 (d, J=11.2 Hz, 1H), 3.05 (d, J=10.0 Hz,
2H), 2.23 (d, J=8.4 Hz, 1H), 1.92 (s, 2H), 1.43 (s, 3H), 1.22 (s,
3H), 1.11 (s, 3H).
[0492] As an alternative to racemic synthesis, enantioselective
synthesis can be used to afford enantioenriched intermediates of
scheme 12.
Synthesis of Enantio-Enriched Intermediate 12-G
##STR00029##
[0494] Enantio-enriched intermediate 12-G can be obtained as
follows:
Preparation of Compound 12-K
[0495] To a solution of compound 12-A (100 g, 0.49 mol, 1.0 eq) in
toluene (1 L) was added (S)-1-phenylethanamine (72 g, 0.59 mol, 1.2
eq) at 18.degree. C. in one portion and fitted with a Dean-Stark.
The reaction mixture was heated to reflux for 20 h, cooled to room
temperature and concentrated under reduced pressure to supply crude
compound 12-K (175 g), which was used for next step without further
purification.
Preparation of Compound 12-L Ent1
[0496] To a solution of compound 12-K (175 g, 0.57 mol, 1.0 eq) in
1.5 L of anhydrous THF was added EVK (58 g, 0.69 mol, 1.2 eq).
After addition the mixture was stirred at room temperature for 4
days under nitrogen. The solvents were removed. 1 N HCl (50 mL) was
added to the residue oil. The mixture was diluted with water (100
mL), extracted with EA (200 mL.times.3). The combined organic
layers was washed with brine (200 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated under reduced pressure
to supply crude compound 12-L-Ent1 (205 g), which was used for next
step without further purification.
Preparation of Compound 12-B Ent1
[0497] The reactions were performed in two batches, and the work-up
was combined together
[0498] To a 2 L three-neck round bottom flask containing 600 mL of
methanol in an ice/water bath was added sodium (8.05 g, 1.0 eq)
piecewise. Compound 12-L Ent1 (100 g, 0.35 mol, 1.0 eq) was added
as a solution in 500 mL of methanol. The reaction was heated to
55.degree. C. for 5 h. TLC (PE/EA=5:1) showed compound 12-L Ent1
was consumed completely. The mixture was acidified to make pH=7-9
in ice-bath and concentrated to give the residue, for which was
diluted into water (400 ml) and extracted with EA (300 mL.times.3).
The combined organic layer was washed with brine (300 mL), dried
over anhydrous Na.sub.2SO.sub.4, filtered and concentrated to give
the crude product, which purified by column chromatography on
silica gel (PE/EA=50:1-30:1-5:1) to supply compound 12-B Ent1 (83
g, 80% yield) as pale-yellow oil. (note: twice purification).
Enantiopurity was assessed at this stage using chiral SFC. The ee
was found to be 86.3%: Column: Chiralcel OJ-3 150.times.4.6 mm
I.D., 3 um Mobile phase: A: CO.sub.2; B: ethanol (0.05% DEA)
Gradient: from 5% to 40% of B in 5 min and hold 40% for 2.5 min,
then 5% of B for 2.5 min Flowrate: 2.5 mL/min Column temp.:
35.degree. C. Rt for 12-B Ent1 is 2.79 min. Rt for 12-B Ent2 is
2.54 min under these conditions.
[0499] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.34-7.24 (m,
5H), 3.55-3.49 (m, 1H), 3.34 (d, J=13.3 Hz, 1H), 3.07-2.86 (m, 2H),
2.69-2.29 (m, 7H), 1.67 (s, 3H), 1.52-1.46 (m, 1H), 1.29 (s,
3H).
[0500] Compound 12-G-Ent1 can be obtained from 12-B Ent1 by
following the same sequence used for the racemate described in
Scheme 12. Scheme 12 intermediates enriched in the opposite
enantiomer can be obtained as above by starting with
(R)-1-phenylethanamine.
Example 2. Synthesis of Compounds 13-Ent1 and 13-Ent2
##STR00030##
[0502] A mixture of compound racemic 12-J (480 mg crude, 1.45 mmol,
1.0 eq), and (CH.sub.2O).sub.n(217 mg, 7.25 mmol, 5.0 eq.) in
HCO.sub.2H (5 mL) was stirred at 90.degree. C. for 1.5 hour. LCMS
showed the starting material was consumed completely. The solvent
was removed in vacuum and then adjusted to a pH of 9.about.10 with
NaHCO.sub.3 (sat). The aqueous phase was extracted with DCM (10
mL.times.4) and the combined organic layer was dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by prep-TLC (EA) to give about 120 mg of racemic compound
which was separated by SFC (Column: C2 250 mm.times.30 mm, 10 um;
Condition: Base-ETOH; Begin B: 15%; FlowRate: 60 ml/min) to give of
13-Ent1 (36.9 mg, Rt=3.42 min) and of 13-Ent2 (19.9 mg, Rt=3.75
min) as yellow solids. The absolute stereochemistry was not
defined.
Data for 13-Ent1:
[0503] HPLC: (Purity: 98.24%)
[0504] LCMS: (M+1: 233.1)
[0505] SFC: (ee: 99.76%)
[0506] .sup.1H NMR: (400 MHz, MeOD-d.sub.4) .delta.: 7.69 (s, 1H),
3.06 (d, J=10.4 Hz, 1H), 2.79 (d, J=10.8 Hz, 1H), 2.31 (s, 3H),
2.04 (d, J=12.4 Hz, 2H), 2.06-2.00 (m, 2H), 1.85-1.65 (m, 1H), 1.36
(s, 3H), 1.19 (s, 3H), 1.09 (s, 3H).
[0507] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.38 (s, 1H),
3.07 (d, J=9.6 Hz, 1H), 2.66 (d, J=10.0 Hz, 1H), 2.29 (s, 3H), 1.96
(d, J=10.8 Hz, 2H), 1.79 (dd, J=2.4, 12.0 Hz, 1H), 1.66-1.57 (m,
2H), 1.36 (s, 3H), 1.19 (s, 3H), 1.09 (s, 3H).
Data for 13-Ent2:
[0508] HPLC: (Purity: 96.37%)
[0509] LCMS: (M+1: 233.1)
[0510] SFC: (ee: 99.1%)
[0511] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.39 (s, 1H),
3.03 (d, J=9.2 Hz, 1H), 2.61 (d, J=10.4 Hz, 1H), 2.27 (s, 3H), 1.92
(d, J=3.2 Hz, 2H), 1.91-1.71 (m, 1H), 1.66-1.59 (m, 2H), 1.37 (s,
3H), 1.21 (s, 3H), 1.11 (s, 3H).
[0512] .sup.1H NMR: (400 MHz, MeOD-d.sub.4) .delta.: 7.69 (s, 1H),
3.05 (d, J=10.8 Hz, 1H), 2.77 (d, J=10.8 Hz, 1H), 2.29 (s, 3H),
1.98 (d, J=10.8 Hz, 2H), 1.83-1.80 (m, 2H), 1.78-1.64 (m, 1H), 1.36
(s, 3H), 1.19 (s, 3H), 1.09 (s, 3H).
Example 3. Synthesis of Compounds 14-Ent1 and 14-Ent2
##STR00031##
[0514] To a solution of Compound 12-J (racemic, 500 mg crude of
about 40% purity, 0.91 mmol, 1.0 eq) and TEA (458 mg, 4.58 mmol,
5.0 eq), in DCM (5 mL) was added benzoyl chloride (192 mg, 1.37
mmol, 1.5 eq) at 25.degree. C. for 1.5 h. The reaction mixture was
stirred at 25.degree. C. for 2 hours. TLC (PE:EA=2:1) showed the
starting materials were consumed completely. The mixture was
quenched with saturated NaHCO.sub.3 (30 mL) and extracted with DCM
(20 mL.times.2). The combined organic phase was dried over sodium
sulfate, and filtered. The filtrate was concentrated in vacuo to
give the residue, which was purified by prep-HPLC (acid, Phenomenex
Synergi C18 150.times.30 mm.times.4 um, water (0.05% HCl)-ACN as
mobile phase, from 41-61%, Flow Rate: 25 mL/min) to give racemic
product (120 mg, yield: 41%) as a white solid. Further separation
by SFC (column: AD (250 mm.times.30 mm, 5 um), condition:
Base-EtOH) to give enantiomers 14-Ent1 (Rt=3.576 min, 56.7 mg) and
14-Ent2 (Rt=4.337 min, 55.3 mg), both as white solid. The absolute
stereochemistry was not determined.
Data for 14-Ent1
[0515] .sup.1H-NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.55-7.30 (m,
6H), 5.12-4.62 (m, 1H), 4.08-3.52 (m, 1H), 3.12-2.52 (m, 2H), 1.94
(d, J=12.5 Hz, 1H), 1.72 (br. s., 1H), 1.58 (br. s., 3H), 1.32 (br.
s., 1H), 1.21 (br. s., 3H), 1.09 (s, 3H).
[0516] HPLC: (Purity: 96.82%).
[0517] SFC: (ee 98.65%).
[0518] LCMS: (M+H: 323.0).
Data for 14-Ent2
[0519] .sup.1HNMR: (400 MHz, CDCl3) .delta.: 7.59-7.30 (m, 6H)
5.16-4.64 (m, 1H) 4.06-3.52 (m, 1H), 3.14-2.55 (m, 2H), 1.95 (d,
J=12.1 Hz, 1H) 1.72 (br. s., 1H) 1.59 (br. s., 3H) 1.32 (br. s.,
1H) 1.21 (br. s., 3H) 1.09 (s, 3H)
[0520] HPLC: (Purity: 94.81%).
[0521] SFC: (ee: 99%).
[0522] LCMS: (M+H: 323.0).
Example 4. Synthesis of Compounds 15-Ent1 and 15-Ent2
##STR00032##
[0524] To a solution of Compound 12-J (500 mg racemic crude with
about 40% purity, 0.91 mmol, 1.0 eq) and TEA (458 mg, 4.58 mmol,
5.0 eq), in DCM (5 mL) was added methanesulfonyl chloride (156 mg,
1.37 mmol, 1.5 eq) at 25.degree. C. for 1.5 h. The reaction mixture
was stirred at 25.degree. C. for 2 hours. TLC (PE:EA=1:2) showed
the starting materials were consumed completely. The mixture was
quenched with saturated aqueous NaHCO.sub.3 (30 mL) and extracted
with DCM (20 mL.times.2). The combined organic phase was dried over
sodium sulfate, and filtered. The filtrate was concentrated in
vacuo to give the residue, which was purified by prep-TLC
(PE:EA=1:3) to give racemic product (120 mg, yield; 45%) as a white
solid. Further separation by SFC (column: AD (250 mm.times.30 mm, 5
um), condition: Base-EtOH) to give enantiomer 15-Ent1 (19224-130-1,
Rt=3.764 min, 21.7 mg) and 15-Ent2 (19224-130-2, Rt=4.591 min, 21.5
mg) both as white solid. The absolute stereochemistry was not
assigned.
Data for 15-Ent1
[0525] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 7.39 (s, 1H)
4.07-4.02 (m, 1H), 3.65 (d, J=11.4 Hz, 1H), 2.82 (s, 3H), 2.70 (td,
J=11.5, 2.74 Hz, 1H), 2.60 (d, J=10.9 Hz, 1H), 1.92-1.73 (m, 3H),
1.39 (s, 3H), 1.24 (s, 3H), 1.13 (s, 3H).
[0526] HPLC: (Purity: 99.24%).
[0527] SFC: (ee 98.02%).
[0528] LCMS: (M+H: 297.2).
Data for 15-Ent2
[0529] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39 (s, 1H),
4.04-4.01 (m, 1H), 3.65 (d, J=11.4 Hz, 1H), 2.82 (s, 3H), 2.70 (td,
J=11.5, 2.74 Hz, 1H), 2.60 (d, J=11.4 Hz, 1H), 1.90-1.72 (m, 3H),
1.39 (s, 3H), 1.24 (s, 3H), 1.13 (s, 3H).
[0530] HPLC: (Purity: 97.43%).
[0531] SFC: (ee: 96.82%).
[0532] LCMS: (M+H: 297.1).
Example 5. Synthesis of Compounds 16-Ent1 and 16-Ent2
##STR00033##
[0534] To a solution of 12-J (racemic, 500 mg crude, about 40%
purity, 0.91 mmol, 1.0 eq) and TEA (458 mg, 4.58 mmol, 5.0 eq) in
DCM (5 mL) was added benzenesulfonyl chloride (241 mg, 1.37 mmol,
1.5 eq) at 0.degree. C. The reaction mixture was stirred at
25.degree. C. for 2 hours. TLC (PE:EA=1:2) showed the starting
materials were consumed completely. The mixture was quenched with
saturated aqueous NaHCO.sub.3 (30 mL) and extracted with DCM (20
mL.times.2). The combined organic phase was dried over sodium
sulfate, and filtered. The filtrate was concentrated in vacuo to
give the residue, which was purified by prep-TLC (PE:EA=1:1) to
give product (180 mg, racemate, yield; 55%) as a white solid.
Further separation by SFC (column: AD (250 mm.times.30 mm, 5 um),
condition: Base-EtOH) to give enantiomer 16-Ent1 (Rt=4.425 min,
84.8 mg) and 16-Ent2 (Rt=7.961 min, 43.1 mg), both as white solids.
The absolute stereochemistry was not determined.
Data for 16-Ent1
[0535] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.75 (d, J=7.4
Hz, 2H), 7.65-7.56 (m, 1H), 7.55-7.50 (m, 2H), 7.37 (s, 1H),
4.10-4.00 (m, 1H), 3.65 (d, J=10.9 Hz, 1H), 2.26 (td, J=11.7, 3.13
Hz, 1H), 2.17 (d, J=10.9 Hz, 1H), 1.91-1.85 (m, 1H), 1.68 (d,
J=11.4 Hz, 2H), 1.43 (s, 3H), 1.16 (s, 3H), 1.11 (s, 3H).
[0536] HPLC: (Purity: 95.59%).
[0537] SFC: (ee: 100%).
[0538] LCMS: (M+H: 359.1).
Data for 16-Ent2
[0539] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta. 7.76 (d, J=7.4
Hz, 2H), 7.65-7.56 (m, 1H), 7.55-7.50 (m, 2H), 7.37 (s, 1H),
4.07-4.01 (m, 1H), 3.65 (d, J=10.9 Hz, 1H), 2.26 (d, J=3.13 Hz,
1H), 2.17 (d, J=10.9 Hz, 1H), 1.91-1.85 (m, 1H), 1.73-1.61 (m, 2H),
1.43 (s, 3H), 1.17 (s, 3H) 1.11 (s, 3H).
[0540] HPLC: (Purity: 97.01%).
[0541] SFC: (ee: 99.78%).
[0542] LCMS: (M+H: 359.1).
Example 6. Synthesis of Compounds 17-Ent1 and 17-Ent2
##STR00034##
[0544] To a solution of compound 12-J (racemate, 500 mg, crude
about 40% purity, 0.91 mmol, 1.0 eq) and TEA (458 mg, 4.58 mmol,
5.0 eq) in DCM (5 mL) was added (bromomethyl)benzene (186 mg, 1.01
mmol, 1.2 eq) at 25.degree. C. The reaction mixture was stirred at
25.degree. C. for 18 hours. LCMS showed the starting materials were
consumed completely. The mixture was quenched with water (15 mL)
and extracted with DCM (10 mL.times.3). The combined organic phase
was dried over sodium sulfate, and filtered. The filtrate was
concentrated in vacuo to give the residue, which was purified by
prep-HPLC (Phenomenex Gemini C18 250.times.21.2 mm.times.5 um,
water with 10 mM of NH.sub.4HCO.sub.3-ACN as mobile phase, from
53-83%, Flow Rate 25 ml/min) to give product (racemic, 100 mg,
yield; 35%) as colorless oil. Further separation by SFC (column: OJ
250 mm.times.30 mm, 5 um, condition: Base-EtOH) to give the two
enantiomers 17-Ent1 (Rt=2.907 min, 29.4 mg) and 17-Ent2 (Rt=3.433
min, 35.4 mg) both as colorless oils.
Data for 17-Ent1
[0545] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta. 7.35-7.23 (m,
6H), 3.59 (d, J=13.3 Hz, 1H), 3.38 (d, J=13.3 Hz, 1H), 3.06 (d,
J=10.9 Hz, 1H), 2.57 (d, J=10.1 Hz, 1H), 2.06-1.99 (m, 1H), 1.87
(d, J=10.6 Hz, 1H), 1.76-1.67 (m, 1H), 1.68-1.63 (m, 1H) 1.55 (dd,
J=12.5, 2.4 Hz, 1H), 1.33 (s, 3H), 1.17 (s, 3H), 1.08 (s, 3H).
[0546] HPLC: (Purity: 100%).
[0547] SFC: (ee: 99.5%).
[0548] LCMS: 19224-138-1C (M+H: 308.9).
Data for 17-Ent2
[0549] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.35-7.23 (m,
6H), 3.59 (d, J=13.3 Hz, 1H), 3.38 (d, J=13.3 Hz, 1H), 3.06 (d,
J=10.9 Hz, 1H), 2.53 (d, J=10.1 Hz, 1H), 2.06-1.99 (m, 1H), 1.80
(d, J=10.6 Hz, 1H), 1.76-167 (m, 1H), 1.68-1.63 (m, 1H) 1.56 (dd,
J=12.5, 2.4 Hz, 1H), 1.28 (s, 3H), 1.12 (s, 3H), 1.04 (s, 3H).
[0550] HPLC: (Purity: 100%).
[0551] SFC: (ee: 99.64%).
[0552] LCMS: (M+H: 309.0).
Example 7. Synthesis of Compounds 18-Ent1 and 18-Ent2
##STR00035##
[0554] A solution of TEA (458 mg, 4.58 mmol, 5.0 eq), HATU (522 mg,
1.37 mmol, 1.5 eq) and cyclohexanecarboxylic acid (176 mg, 1.37
mmol, 1.5 eq) in DCM (5 mL) was stirred at 25.degree. C. for 1.5 h.
Compound 12-J (racemic, 500 mg crude about 40% purity, 0.91 mmol,
1.0 eq) in DCM (2 mL) was added to above the mixture dropwise at
25.degree. C. The reaction mixture was stirred at 25.degree. C. for
18 hours. TLC (PE:EA=2:1) showed the starting materials were
consumed completely. The mixture was quenched with Saturated
NaHCO.sub.3 (30 mL) and extracted with DCM (20 mL.times.2). The
combined organic phase was dried over sodium sulfate, and filtered.
The filtrate was concentrated in vacuo to give the residue, which
was purified by prep-TLC (PE:EA=1:1) to give racemic product (100
mg, yield: 32%) as a white solid. Further separation by SFC
(column: AD 250 mm.times.30 mm, 5 um, condition: Base-EtOH) to give
enantiomers 18-Ent1 (Rt=4.347 min, 18.2 mg) and 18-Ent2
(19224-138-2, Rt=4.983 min, 17.2 mg), both were white solids. The
absolute stereochemistry was not defined.
Data for 18-Ent1
[0555] .sup.1H-NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.49 (s, 1H),
4.96-4.57 (m, 1H), 4.25-4.21 (m, 1H), 3.08-2.97 (m, 1H), 2.59-2.38
(m, 2H), 1.98-1.74 (m, 5H). 1.62-1.51 (m, 5H), 1.35-1.23 (m, 7H),
1.18 (s, 2H), 1.11 (s, 3H).
[0556] HPLC: (Purity: 100%).
[0557] SFC: (ee: 96.08%).
[0558] LCMS: (M+H: 329.1).
Data for 18-Ent2
[0559] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.49 (s, 1H),
4.98-4.51 (m, 1H), 4.29-4.20 (m, 1H), 3.08-2.97 (m, 1H), 2.59-2.38
(m, 2H), 1.97-1.74 (m, 5H). 1.62-1.49 (m, 5H), 1.35-1.23 (m, 7H),
1.18 (s, 2H), 1.11 (s, 3H).
[0560] HPLC: (Purity: 94.14%).
[0561] SFC: (ee: 98.32%).
[0562] LCMS: (M+H: 329.1).
Example 8. Synthesis of Compounds 19-Ent1 and 19-Ent2
##STR00036##
[0564] A solution of TEA (458 mg, 4.58 mmol, 5.0 eq), HATU (522 mg,
1.37 mmol, 1.5 eq) and butyric acid (120 mg, 1.37 mmol, 1.5 eq) in
DCM (5 mL) was stirred at 25.degree. C. for 1.5 h. Compound 12-J
(500 mg crude, racemic, about 40% purity, 0.91 mmol, 1.0 eq) in DCM
(2 mL) was added to the above mixture dropwise at 25.degree. C. The
reaction mixture was stirred at 25.degree. C. for 18 hours. TLC
(PE:EA=2:1) showed the starting materials were consumed completely.
The mixture was quenched with Saturated NaHCO.sub.3 (30 mL) and
extracted with DCM (20 mL.times.2). The combined organic phase was
dried over sodium sulfate, and filtered. The filtrate was
concentrated in vacuo to give the residue, which was purified by
prep-TLC (PE:EA=1:1) to give racemic product (200 mg, yield; 60%)
as a white solid. Further separation by SFC (column: AD (250
mm.times.30 mm, 5 um), condition: Base-EtOH) to give enantiomer
19-Ent1 (Rt=3.621 min, 81.7 mg) and 19-Ent2 (Rt=4.392 min, 96.8
mg), both are white solid. The absolute stereochemistry was not
determined.
Data for 19-Ent1:
[0565] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.51-7.45 (m,
1H), 4.65 (d, J=12.5 Hz, 1H), 4.13-3.53 (m, 1H), 3.15-2.93 (m, 1H),
2.50-2.24 (m, 3H), 1.95-1.85 (m, 1H), 1.77-1.65 (m, 4H), 1.24 (br.
s., 4H), 1.20 (s, 2H), 1.11 (s, 3H), 1.05-0.88 (s, 3H).
[0566] HPLC: (Purity: 100%).
[0567] SFC: (ee: 100%).
[0568] LCMS: (M+H: 289).
Data for 19-Ent2:
[0569] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.51-7.45 (m,
1H), 4.66 (d, J=12.5 Hz, 1H), 4.13-3.51 (m, 1H), 3.12-2.90 (m, 1H),
2.50-2.24 (m, 3H), 1.95-1.85 (m, 1H), 1.77-1.65 (m, 4H), 1.25 (br.
s., 4H), 1.20 (s, 2H), 1.11 (s, 3H), 1.05-0.88 (s, 3H).
[0570] HPLC: (Purity: 100%).
[0571] SFC: (ee: 99.8%).
[0572] LCMS: (M+H: 289).
Example 9. Synthesis of Compounds 20-Ent1 and 20-Ent2
##STR00037##
[0574] A mixture of cyclopropanecarboxylic acid (203 mg, 2.35 mmol,
1.2 eq.), HATU (1.1 g, 2.94 mmol, 1.5 eq.) and TEA (595 mg, 5.88
mmol, 3.0 eq.) in DCM (5 mL) was stirred at 20.degree. C. for 1 h.
Then compound 12-J (500 mg, 1.96 mmol, 1.0 eq) was added. The
mixture was stirred at 20.degree. C. for 16 h. LCMS showed the
reaction was complete. The mixture was combined with batch
19243-114-1 and worked up together. The mixture was purified by
prep-TLC (PE/EA=1/1) to give the product (200 mg, racemate, 44.0%
yield) as a white solid.
[0575] The enantiomers were separated by SFC (Mobile phase:
Supercritical CO2/EtOH (0.1% NH.sub.3.H.sub.2O); Column: Chiralpak
OD (250 mm.times.30 mm, 10 um); Detection wavelength: 220 nm) to
give 20-Ent1 (Rt=4.306 min, 76.3 mg, 38.15% yield) as a white solid
and 20-Ent2 (Rt=6.013 min, 63.3 mg, 31.65% yield) as white solids.
The absolute stereochemistry for both enantiomers was not
determined.
Data for 20-Ent1:
[0576] LCMS: (M+H: 287.2)
[0577] HPLC: (96.08% purity)
[0578] SFC: (ee %: 100%)
[0579] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.48 (s., 1H),
4.89 (br. s, 1H), 4.62 (br. s, 1H), 4.46 (br. s, 1H), 4.05 (br. s,
1H), 3.10 (br. s, 1H), 2.57-2.43 (m, 1H), 2.01-1.93 (m, 1H),
1.73-1.66 (m, 1H), 1.34-1.16 (m, 6H), 1.11 (s, 3H), 1.00 (s., 2H),
0.82 (s., 2H).
Data for 20-Ent2:
[0580] LCMS: (M+H: 287.1)
[0581] HPLC: (99.48% purity)
[0582] SFC: (ee %: 100%)
[0583] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.48 (s., 1H),
4.89 (br. s, 1H), 4.62 (br. s, 1H), 4.47 (br. s, 1H), 4.05 (br. s,
1H), 3.10 (br. s, 1H), 2.58-2.42 (m, 1H), 2.00-1.92 (m, 1H), 1.80
(s., 1H), 1.30-1.16 (m, 6H), 1.11 (s, 3H), 1.00 (s., 2H), 0.82 (s.,
2H).
Example 10. Synthesis of Compounds 21-Ent1 and 21-Ent2
##STR00038##
[0585] A mixture of oxetane-3-carboxylic acid (78 mg, 0.76 mmol,
1.2 eq.); HATU (395 g, 0.95 mmol, 1.5 eq.) and TEA (191 mg, 1.89
mmol, 3.0 eq.) in DCM (5 mL) was stirred at 20.degree. C. for 1 h.
Then compound 12-J (200 mg racemate, 0.63 mmol, 1.0 eq) was added.
The mixture was stirred at 20.degree. C. for 16 h. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give the racemic product (60 mg, 31.3% yield) as yellow oil
which was further separated by SFC (Mobile phase: Supercritical
CO.sub.2/MeOH with 0.1% NH3.H2O; Column: Chiralpak OD (250 mm*30
mm, 10 um); Detection wavelength: 220 nm) to give single enantiomer
21-Ent1 (Rt=5.034 min, 8.0 mg, 13.3% yield) as a white solid and
single enantiomer 21-Ent2 (Rt=5.754 min, 7.6 mg, 12.7% yield) as a
white solid. The absolute stereochemistry for both enantiomers was
not determined.
Data for 21-Ent1
[0586] LCMS: (M+H: 303.2)
[0587] HPLC: (98.95% purity)
[0588] SFC: (ee %: 99.64%)
[0589] .sup.1HNMR: (400 MHz, MeOD) .delta.: 7.81 (s, 0.58H), 7.73
(s, 0.34H), 4.88-4.72 (m, 4H), 4.53 (d, J=12.6 Hz, 0.74H),
4.36-4.26 (m, 1H), 3.63 (d, J=11.8 Hz, 0.77H), 3.43 (d, J=12.0 Hz,
0.44H), 3.09-2.93 (m, 1H), 2.60 (d, J=12.8 Hz, 1H), 2.12-2.03 (m,
1H), 1.77-1.63 (m, 2H), 1.25-1.19 (m, 5H), 1.17 (s, 1H), 1.09 (s,
3H).
Data for 21-Ent2
[0590] LCMS: (M+H: 303.2)
[0591] HPLC: (98.32% purity)
[0592] SFC: (ee %: 100%)
[0593] .sup.1HNMR: (400 MHz, MeOD) .delta.: 7.81 (s, 0.6H), 7.73
(s, 0.35H), 4.88-4.72 (m, 4H), 4.53 (d, J=12.6 Hz, 0.7H), 4.32-4.22
(m, 1H), 3.63 (d, J=13.6 Hz, 0.75H), 3.43 (d, J=13.0 Hz, 0.48H),
3.08-2.95 (m, 1H), 2.60 (d, J=12.6 Hz, 1H), 2.13-2.02 (m, 1H),
1.78-1.63 (m, 2H), 1.24-1.19 (m, 5H), 1.17 (s, 1H), 1.09 (s,
3H).
Example 11. Synthesis of Compounds 22-Ent1 and 22-Ent2
##STR00039##
[0595] A mixture of 2-methoxyacetic acid (137 mg, 1.52 mmol, 1.2
eq.); HATU (724 g, 1.91 mmol, 1.5 eq.) and TEA (386 mg, 3.81 mmol,
3.0 eq.) in DCM (5 mL) was stirred at 30.degree. C. for 1 h. Then
compound 12-J (400 mg racemate, 1.27 mmol, 1.0 eq) was added. The
mixture was stirred at 30.degree. C. for 16 h. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give racemic product (200 mg, 54.2% yield) as a brown solid. The
obtained product was separated by SFC (Mobile phase: Supercritical
CO.sub.2/EtOH with 0.1% NH3.H2O; Column: Chiralpak OD (250 mm*30
mm, 5 um); Detection wavelength: 220 nm) to give single enantiomer
22-Ent1 (Rt=4.001 min, 38.3 mg, 19.2% yield) as a white solid and
single enantiomer 22-Ent2 (Rt=4.631 min, 35.1 mg, 19.2% yield) as a
white solid. The absolute stereochemistry for both enantiomers was
not determined.
Data for 22-Ent1:
[0596] MS: (M+H: 291.17)
[0597] HPLC: (93.64% purity)
[0598] SFC: (ee %: 96.35%)
[0599] .sup.1HNMR: (400 MHz, CDCl.sub.3, T=40.degree. C.) .delta.:
7.48-7.38 (m, 1H), 4.83 (br. s., 0.45H), 4.58 (d, J=12.0 Hz,
0.82H), 4.30-4.02 (m, 3H), 3.86 (d, J=9.4 Hz, 0.44H), 3.45 (s, 3H),
3.07-2.91 (m, 1H), 2.61-2.44 (m, 1H), 1.94 (d, J=11.0 Hz, 1H),
1.80-1.64 (m, 2H), 1.31-1.19 (m, 6H), 1.12 (s, 3H).
Data for 22-Ent2:
[0600] MS: (M+H: 291.17)
[0601] HPLC: (93.40% purity)
[0602] SFC: (ee %: 97.73%)
[0603] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.50-7.41 (m,
1H), 4.83 (d, J=12.8 Hz, 0.43H), 4.57 (d, J=12.6 Hz, 0.8H),
4.29-4.19 (m, 0.8H), 4.17-4.04 (m, 2H), 3.83 (d, J=12.6 Hz, 0.47H),
3.51-3.36 (m, 3H), 3.07-2.93 (m, 1H), 2.60-2.44 (m, 1H), 1.98-1.89
(m, 1H), 1.82-1.66 (m, 2H), 1.31-1.17 (m, 6H), 1.11 (s, 3H).
Example 12. Synthesis of Compounds 23-Ent1 and 23-Ent2
##STR00040##
[0605] A mixture of nicotinic acid (187 mg, 1.52 mmol, 1.2 eq.);
HATU (724 g, 1.91 mmol, 1.5 eq.) and TEA (386 mg, 3.81 mmol, 3.0
eq.) in DCM (5 mL) was stirred at 30.degree. C. for 1 h. Then
compound 12-J (400 mg racemate, 1.27 mmol, 1.0 eq) was added. The
mixture was stirred at 30.degree. C. for 16 h. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give the racemic product (230 mg, 60% yield) as a yellow solid.
The obtained product was separated by SFC (Mobile phase:
Supercritical CO.sub.2/MeOH with 0.1% NH3.H2O; Column: Chiralpak OD
(250 mm*30 mm, 5 um); Detection wavelength: 220 nm) to give single
enantiomer 23-Ent1 (Rt=4.928 min, 70.4 mg, 30.6% yield) as a white
solid and single enantiomer 23-Ent2 (Rt=7.154 min, 63.5 mg, 27.6%
yield) as a white solid.
Data for 23-Ent1
[0606] MS: (M+H: 324.16)
[0607] HPLC: (98.83% purity)
[0608] SFC: (ee %: 99.76%)
[0609] .sup.1HNMR: (400 MHz, DMSO_d.sub.6, T=80.degree. C.)
.delta.: 8.66 (d, J=5.0 Hz, 1H), 8.62 (s, 1H), 7.98 (br. s., 1H),
7.83 (d, J=7.8 Hz, 1H), 7.48 (dd, J=4.8, 7.8 Hz, 1H), 4.03 (br. s,
2H), 3.12 (m, 1H), 3.05-2.96 (m, 1H), 2.11 (dd, J=2.8, 12.6 Hz,
1H), 1.83-1.65 (m, 1H), 1.60 (d, J=14.8 Hz, 1H), 1.23-1.12 (m, 6H),
1.04 (s, 3H).
Data for 23-Ent2:
[0610] MS: (M+H: 324.16)
[0611] HPLC: (98.39% purity)
[0612] SFC: (ee %: 100%)
[0613] .sup.1HNMR: (400 MHz, DMSO_d.sub.6) .delta.: 8.66-8.58 (m,
2H), 8.17 (s., 0.5H), 7.96-7.74 (m, 1.5H), 7.50 (dd, J=5.2, 7.4 Hz,
1H), 4.74-4.52 (m, 1H), 3.71-3.49 (m, 1H), 3.18-3.03 (m, 1H),
2.80-2.62 (m, 1H), 2.11 (m, 1H), 1.85-1.59 (m, 1.6H), 1.51 (d,
J=11.6 Hz, 0.75H), 1.33-0.72 (m, 9H).
Example 13. Synthesis of Compounds 24-Ent1 and 24-Ent2
##STR00041##
[0615] A mixture of pyrimidine-5-carboxylic acid (189 mg, 1.52
mmol, 1.2 eq.); HATU (724 g, 1.91 mmol, 1.5 eq.) and TEA (386 mg,
3.81 mmol, 3.0 eq.) in DCM (5 mL) was stirred at 30.degree. C. for
1 h. Then compound 12-J (400 mg, 1.27 mmol, 1.0 eq) was added. The
mixture was stirred at 30.degree. C. for 16 h. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give the crude product (200 mg, crude). It was re-purified by
prep-HPLC (Mobile phase A: water with 0.225% formic acid, Mobile
phase B: acetonitrile; Column: Phenomenex Synergi C18 100*21.2 mm*4
um, Detection wavelength: 220 nm) to give the racemic product (100
mg, 24.3% yield) as a white solid. The obtained product was
separated by SFC (Mobile phase: Supercritical CO.sub.2/EtOH with
0.1% NH3.H2O; Column: Chiralpak OD (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to give single enantiomer 24-Ent1 (Rt=5.350
min, 34.7 mg, 34.7% yield) as a white solid and single enantiomer
24-Ent2 (Rt=7.285 min, 25.9 mg, 25.9% yield) as a light yellow
solid.
Data for 24-Ent1:
[0616] LCMS: (M+H: 325.2)
[0617] HPLC: (94.84% purity)
[0618] SFC: (ee %: 98.71%)
[0619] .sup.1HNMR: (400 MHz, DMSO_d.sub.6) .delta.: 9.29 (s, 1H),
8.99-8.80 (m, 2H), 8.17 (s., 0.53H), 7.88 (s., 0.36H), 4.74-4.46
(m, 1H), 3.71-3.68 (m, 1H), 3.38-3.12 (m, 1H), 2.80-2.71 (m, 1H),
2.19-2.04 (m, 1H), 1.84-1.49 (m, 2H), 1.29-0.84 (m, 9H).
Data for 24-Ent2:
[0620] LCMS: (M+H: 325.2)
[0621] HPLC: (100% purity)
[0622] SFC: (ee %: 100%)
[0623] .sup.1HNMR: (400 MHz, DMSO_d.sub.6) .delta.: 9.25 (s., 1H),
8.94-8.77 (m, 2H), 8.13 (s., 0.62H), 7.84 (s., 0.35H), 4.69-4.50
(m, 1H), 3.67-3.52 (m, 1H), 3.17-3.01 (m, 1H), 2.80-2.66 (m, 1H),
2.19-2.04 (m, 1H), 1.84-1.49 (m, 2H), 1.29-0.84 (m, 9H).
Example 14. Synthesis of Compounds 25-Ent1 and 25-Ent2
1-methyl-1H-pyrazole-4-carboxylic Acid
##STR00042##
[0625] A mixture of 1-methyl-1H-pyrazole-4-carboxylic acid (192 mg,
1.52 mmol, 1.2 eq.); HATU (724 g, 1.91 mmol, 1.5 eq.) and TEA (385
mg, 3.81 mmol, 3.0 eq.) in DCM (5 mL) was stirred at 30.degree. C.
for 1 h. Then compound 12-J (400 mg racemate, 1.27 mmol, 1.0 eq)
was added. The mixture was stirred at 30.degree. C. for 16 h. LCMS
showed the reaction was complete. The mixture was purified by
prep-HPLC (Mobile phase A: water with 0.225% formic acid, Mobile
phase B: acetonitrile; Column: Phenomenex Synergi C18 100*21.2 mm*4
um, Detection wavelength: 220 nm) to give the racemic product (200
mg, 48.3% yield) as a yellow solid. The obtained product was
separated by SFC (Mobile phase: Supercritical CO.sub.2/EtOH with
0.1% NH3.H2O; Column: Chiralpak OD (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to give single enantiomer 25-Ent1 (Rt=3.976
min, 59.0 mg, 29.5% yield) as a white solid and single enantiomer
25-Ent2 (Rt=5.133 min, 50 mg, 25.0% yield) as a white solid. The
absolute stereochemistry for both enantiomers was not
determined.
Data for 25-Ent1:
[0626] LCMS: (M+H: 327.2)
[0627] HPLC: (95.04% purity)
[0628] SFC: (ee %: 99.23%)
[0629] .sup.1HNMR: (400 MHz, DMSO-d.sub.6) .delta.: 8.15-8.02 (m,
2H), 7.68 (s, 1H), 4.50-4.19 (m, 2H), 3.86 (s, 3H), 2.97 (br. s.,
2H), 2.09 (d, J=14.6 Hz, 1H), 1.70 (br. s., 1H), 1.58 (d, J=12.8
Hz, 1H), 1.18-1.05 (m, 6H), 1.00 (s, 3H).
Data for 25-Ent2:
[0630] LCMS: (M+H: 327.2)
[0631] HPLC: (95.45% purity)
[0632] SFC: (ee %: 100%)
[0633] .sup.1HNMR: (400 MHz, DMSO_d.sub.6) .delta.: 8.15-8.00 (m,
2H), 7.68 (s, 1H), 4.48-4.22 (m, 2H), 3.86 (s, 3H), 2.96 (br. s.,
2H), 2.09 (d, J=14.8 Hz, 1H), 1.77-1.66 (m, 1H), 1.58 (d, J=12.4
Hz, 1H), 1.18-1.05 (m, 6H), 1.00 (s, 3H).
Example 15. Synthesis of Compounds 26-Ent1 and 26-Ent2
##STR00043##
[0635] To a solution of compound 12-J (racemic) (160 mg, 0.63 mmol,
1.0 eq.) and TEA (255 mg, 2.52 mmol, 4.0 eq) in DCM (2 mL) was
added propionyl chloride (88 mg, 0.95 mmol, 1.5 eq.) dropwise. The
mixture was stirred at 10.degree. C. for 30 min. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give the racemate (80 mg, 47.1% yield) as brown gum. The
compound was separated by SFC (Mobile phase: Supercritical
CO.sub.2/EtOH; Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to give 26-Ent1 (Rt=3.548 min, 35.7 mg, 44.6%
yield) as a white solid and 26-Ent2 (Rt=4.420 min, 33.1 mg, 41.4%
yield) as a white solid. The absolute stereochemistry was not
determined.
Data for 26-Ent1:
[0636] HPLC: (Purity: 100.0%)
[0637] LCMS: (M+H: 275.1)
[0638] SFC: (ee: 99.28%)
[0639] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.51-7.41 (m,
1H), 4.94 (m, 0.4H), 4.65 (m, 0.8H), 4.09 (m, 0.7H), 3.68 (m,
0.4H), 3.08-2.95 (m, 1H), 2.52-2.33 (m, 3H), 1.97-1.88 (m, 1H),
1.79-1.65 (m, 2H), 1.32-1.15 (m, 9H), 1.11 (s, 3H).
Data for 26-Ent2:
[0640] HPLC: (Purity: 100.00%)
[0641] LCMS: (M+H: 275.2)
[0642] SFC: (ee: 100%)
[0643] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.51-7.41 (m,
1H), 4.94 (m, 0.4H), 4.65 (m, 0.8H), 4.09 (m, 0.7H), 3.68 (m,
0.4H), 3.08-2.95 (m, 1H), 2.52-2.33 (m, 3H), 1.97-1.88 (m, 1H),
1.79-1.65 (m, 2H), 1.32-1.15 (m, 9H), 1.11 (s, 3H).
Example 16. Synthesis of Compound 27-Ent1 and 27-Ent2
##STR00044##
[0645] To a solution of compound 12-J (160 mg, 0.63 mmol, 1.0 eq.)
and TEA (255 mg, 2.52 mmol, 4.0 eq) in DCM (2 mL) was added
isobutyryl chloride (101 mg, 0.95 mmol, 1.5 eq.) dropwise. The
mixture was stirred at 10.degree. C. for 30 min. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give the racemate (90 mg, 48.1% yield) as brown gum. It was
separated by SFC (Mobile phase: Supercritical CO.sub.2/EtOH;
Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection wavelength:
220 nm) to give 27-Ent1 (Rt=3.587 min, 35.2 mg, 39.1% yield) as a
white solid and 27-Ent2 (Rt=4.469 min, 38.5 mg, 42.8% yield) as a
white solid. The absolute stereochemistry was not determined.
Data for 27-Ent1:
[0646] HPLC: (Purity: 99.02%)
[0647] LCMS: (M+H: 289.2)
[0648] SFC: (ee: 99.10%)
[0649] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.52-7.41 (m,
1H), 4.93 (br., 0.4H), 4.67 (m, 0.8H), 4.17 (m, 0.8H), 3.77 (br. s,
0.4H), 3.10-2.97 (m, 1H), 2.92-2.74 (m, 1H), 2.52-2.37 (m, 1H),
1.99-1.89 (m, 1H), 1.78-1.65 (m, 2H), 1.32-1.05 (m, 15H).
Data for 27-Ent2:
[0650] HPLC: (Purity: 98.75%)
[0651] LCMS: (M+H: 289.2)
[0652] SFC: (ee: 99.44%)
[0653] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.52-7.41 (m,
1H), 4.93 (br., 0.4H), 4.67 (m, 0.8H), 4.17 (m, 0.8H), 3.77 (br. s,
0.4H), 3.10-2.97 (m, 1H), 2.92-2.74 (m, 1H), 2.52-2.37 (m, 1H),
1.99-1.89 (m, 1H), 1.78-1.65 (m, 2H), 1.32-1.05 (m, 15H).
Example 17. Synthesis of Compounds 28-Ent1 and 28-Ent2
##STR00045##
[0655] To a solution of compound 12-J (85 mg, 0.41 mmol, 1.0 eq.)
and TEA (205 mg, 1.64 mmol, 4.0 eq) in DCM (2 mL) was added
pivaloyl chloride (74 mg, 0.61 mmol, 1.5 eq.) dropwise. The mixture
was stirred at 10.degree. C. for 30 min. LCMS showed the reaction
was complete. The mixture was purified by prep-TLC (PE/EtOAc=1/1)
to give the racemate (70 mg, 69.3% yield) as a white solid. It was
separated by SFC (Mobile phase: Supercritical CO.sub.2/EtOH;
Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection wavelength:
220 nm) to give 28-Ent1 (Rt=3.148 min, 14.7 mg, 21.0% yield) as a
white solid and 28-Ent2 (Rt=3.898 min, 13.3 mg, 19.0% yield) as a
white solid. The stereochemistry was not defined.
Data for 28-Ent1:
[0656] HPLC: (Purity: 100.0%)
[0657] MS: (M+H: 303.2088)
[0658] SFC: (ee: 98.54%)
[0659] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.49 (s, 1H),
4.65-4.62 (m, 1H), 4.53-4.48 (m, 1H), 3.04-2.95 (m, 1H), 2.46 (m,
1H), 1.94 (m, 1H), 1.78-1.64 (m, 2H), 1.33 (s, 9H), 1.24 (s, 3H),
1.21 (s, 3H), 1.12 (s, 3H).
Data for 28-Ent2:
[0660] HPLC: (Purity: 97.48%)
[0661] MS: (M+H: 303.2087)
[0662] SFC: (ee: 99.78%)
[0663] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.49 (s, 1H),
4.65-4.62 (m, 1H), 4.53-4.48 (m, 1H), 3.04-2.95 (m, 1H), 2.46 (m,
1H), 1.94 (m, 1H), 1.78-1.64 (m, 2H), 1.33 (s, 9H), 1.24 (s, 3H),
1.21 (s, 3H), 1.12 (s, 3H).
Example 18. Synthesis of Compounds 29-Ent1 and 29-Ent2
##STR00046##
[0665] To a of solution of 12-J (100 mg, 0.39 mmol, 1.0 eq.) in DCM
(2 mL) was added TEA (120 mg, 1.17 mmol, 3.0 eq.) and
methylcarbarnic (59 mg, 0.59 mmol, 1.5 eq.). The mixture was
stirred at 20.degree. C. for 30 min. LCMS showed the reaction was
complete. The mixture was purified by prep-TLC (EtOAc) to give the
racemate (50 mg, 46.3% yield) as yellow oil. It was separated by
SFC (Mobile phase: Supercritical CO.sub.2/MeOH; Column: Chiralpak
AD (250 mm*30 mm, 5 um); Detection wavelength: 220 nm) to give
29-Ent1 (Rt=3.773 min, 20.4 mg, 40.8% yield) as a white solid and
29-Ent2 (Rt=5.624 min, 22.1 mg, 44.2% yield) as a white solid. The
absolute stereochemistry was not determined.
Data for 29-Ent1:
[0666] HPLC: (Purity: 100.0%)
[0667] LCMS: (M+H: 276.2)
[0668] SFC: (ee: 100%)
[0669] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.45 (s, 1H),
4.47 (br. s., 1H), 4.10-4.06 (m, 1H), 4.02-3.94 (m, 1H), 2.90-2.81
(m, 4H), 2.63-2.59 (m, 1H), 1.88-1.82 (m, 1H), 1.80-1.71 (m, 1H),
1.65-1.61 (m, 1H), 1.27 (s, 3H), 1.24 (s, 3H), 1.11 (s, 3H).
Data for 29-Ent2:
[0670] HPLC: (Purity: 100.0%)
[0671] LCMS: (M+H: 276.1)
[0672] SFC: (ee: 100%)
[0673] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.45 (s, 1H),
4.47 (br. s., 1H), 4.10-4.06 (m, 1H), 4.02-3.94 (m, 1H), 2.90-2.81
(m, 4H), 2.63-2.59 (m, 1H), 1.88-1.82 (m, 1H), 1.80-1.71 (m, 1H),
1.65-1.61 (m, 1H), 1.27 (s, 3H), 1.24 (s, 3H), 1.11 (s, 3H).
Example 19. Synthesis of Compounds 30-Ent1 and 30-Ent2
##STR00047##
[0675] A mixture of compound 12-J (145 mg, 0.59 mmol, 1.0 eq.),
2-chloropyrimidine (102 mg, 0.89 mmol, 1.5 eq) and DIPEA (304 mg,
2.36 mmol, 4.0 eq.) in THF (5 mL) was stirred at 70.degree. C. for
16 h. LCMS showed the reaction was complete. The mixture was
purified by prep-TLC (PE/EtOAc=2/1) to give the racemate (50 mg,
29.6% yield) as a white solid. It was separated by SFC (Mobile
phase: Supercritical CO.sub.2/EtOH; Column: Chiralpak AD (250 mm*30
mm, 5 um); Detection wavelength: 220 nm) to give 30-Ent1 (Rt=3.791
min, 6.0 mg, 12.0% yield) as a white solid and 30-Ent2 (Rt=5.451
min, 7.0 mg, 14.0% yield) as a white solid. The absolute
stereochemistry was not determined.
Data for 30-Ent1:
[0676] HPLC: (Purity: 100.0%)
[0677] LCMS: (M+H: 297.0)
[0678] SFC: (ee: 99.62%)
[0679] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=8.32 (d, J=4.8
Hz, 2H), 7.53 (s, 1H), 6.53 (t, J=4.8 Hz, 1H), 5.09-5.05 (dd, J=4.4
Hz, J=2 Hz, 1H), 4.85 (d, J=12.4 Hz, 1H), 2.87-2.71 (m, 2H), 1.98
(m, 1H), 1.84-1.68 (m, 2H), 1.27 (s, 3H), 1.24 (s, 3H), 1.12 (s,
3H).
Data for 30-Ent2:
[0680] HPLC: (Purity: 97.70%)
[0681] LCMS: (M+H: 296.9)
[0682] SFC: (ee: 99.78%)
[0683] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=8.32 (d, J=4.8
Hz, 2H), 7.53 (s, 1H), 6.53 (t, J=4.8 Hz, 1H), 5.09-5.05 (dd, J=4.4
Hz, J=2 Hz, 1H), 4.85 (d, J=12.4 Hz, 1H), 2.87-2.71 (m, 2H), 1.98
(m, 1H), 1.84-1.68 (m, 2H), 1.27 (s, 3H), 1.24 (s, 3H), 1.12 (s,
3H).
Example 20. Synthesis of Compounds 31-Ent and 31-Ent2
##STR00048##
[0685] A mixture of compound 12-J (200 mg, 0.68 mmol, 1.0 eq.),
2,2,2-trifluoroethyl trifluoromethanesulfonate (310 mg, 1.36 mmol,
2.0 eq), and DIPEA (260 mg, 2.04 mmol, 3.0 eq.) in THF (3 mL) was
stirred at 75.degree. C. for 2 h. LCMS showed the reaction was
complete. The mixture was purified by prep-TLC (PE/EtOAc=4/1) to
give the racemate (80 mg, 33.9% yield) as a yellow oil. The racemic
product was separated by SFC (Mobile phase: Supercritical
CO.sub.2/MeOH; Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to give 31-Ent1 (Rt=1.843 min, 24.9 mg, 31.1%
yield) as a white solid and 31-Ent2 (Rt=2.322 min, 23.3 mg, 29.1%
yield) as a white solid. The absolute stereochemistry was not
determined.
Data for 31-Ent1:
[0686] HPLC: (Purity: 100.0%)
[0687] LCMS: (M+H: 301.1)
[0688] SFC: (ee: 99.28%)
[0689] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.36 (s, 1H),
3.14 (m., 1H), 3.02 (m., 2H), 2.72 (m, 1H), 2.50-2.38 (m, 2H),
1.86-1.76 (m, 1H), 1.71-1.64 (m, 1H), 1.60 (m, 1H), 1.37 (s, 3H),
1.21 (s, 3H), 1.11 (s, 3H).
Data for 31-Ent2:
[0690] HPLC: (Purity: 100.0%)
[0691] LCMS: (M+H: 300.7)
[0692] SFC: (ee: 99.75%)
[0693] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.36 (s, 1H),
3.14 (m., 1H), 3.02 (m., 2H), 2.72 (m, 1H), 2.50-2.38 (m, 2H),
1.86-1.76 (m, 1H), 1.71-1.64 (m, 1H), 1.60 (m, 1H), 1.37 (s, 3H),
1.21 (s, 3H), 1.11 (s, 3H).
Example 21. Synthesis of Compounds 32-Ent1 and 32-Ent2
##STR00049##
[0694] Preparation of Compound 32-A
[0695] A mixture of compound 12-A (80 g, 0.39 mol, 1 eq.) and
Pd(OH).sub.2/C (4 g) in ethanol (800 mL) was stirred under 45 psi
of H.sub.2 at 40.degree. C. for 20 hours. TLC (PE/EtOAc=5:1)
indicated completion. The suspension was filtered through a pad of
celite and washed with EA (400 mL.times.2), the filtrate was
concentrated under reduced pressure to give a crude product of
compound 32-A (80 g, crude) as colorless gum.
[0696] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 4.20-4.13 (m,
1H), 3.33-3.14 (m, 1H), 2.56-2.35 (m, 3H), 2.02 (s, 2H), 1.47 (s,
9H), 1.02 (d, J=6.6 Hz, 3H).
Preparation of Compound 32-B
[0697] Na (8.6 g, 0.375 mol, 1.0 eq) was added to MeOH (800 mL) in
many portions at 25.degree. C. and stirred until Na was disappeared
and then was added compound 32-A (80 g, 37.5 mmol), EVK (31.55 g,
0.375 mol, 1.0 eq) was added to the above solution at 0.degree. C.
dropwise over 5 mins under N.sub.2 atmosphere. The reaction mixture
was stirred at 25.degree. C. for 18 hours. TLC (PE/EA=5:1) showed
the starting materials were consumed completely. The mixture was
quenched with saturated NH.sub.4Cl (800 mL) and extracted with EA
(800 mL.times.2). The combined organic phase was dried over sodium
sulfate, and filtered. The filtrate was concentrated in vacuo to
give the residue, which was purified by prep-HPLC (base,
(Phenomenex Gemini C18 250*21.2 mm*5 um, water (10 mM
NH4HCO.sub.3)-ACN as mobile phase, from 53-83%, Flow Rate (ml/min):
25) to give compound 32-B (30 g, yield; 42%) as a white solid.
[0698] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 4.03-3.73 (m,
1H), 3.01-2.59 (m, 3H), 2.55-2.36 (m, 3H), 1.75 (s, 3H), 1.48 (s,
9H), 1.22 (s, 3H).
Preparation of Compound 32-C
[0699] Potassium tert-butoxide (108 mL, 108 mmol, 1.0 eq) was added
to the solution of compound 32-B (30 g, 108 mmol, 1.0 eq.) in THF
(anhydrous, 400 mL) dropwise at 0.about.5.degree. C. The resulting
brown solution was stirred at 15.degree. C. for 2 hrs. Methyl
iodide (17.1 g, 108 mmol, 1.0 eq.) was added to the solution at
0.degree. C. via syringe. The yellow suspension was stirred at
10.about.15.degree. C. for 18 hrs. TLC (PE/EtOAc=5:1) indicated
completion. Sat. NH.sub.4Cl (300 mL) was added, the solvent THF was
removed under reduced pressure. The residue was extracted with
EtOAc (300 mL.times.2). The combined organic layers were washed
with water (200 mL.times.2), brine (100 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by column chromatography on silica gel (PE/EtOAc=30:1) to
give compound 32-C (21 g, 66.7%) as a white solid.
[0700] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 5.64-5.42 (m,
1H). 4.40-4.14 (m, 1H), 3.96-3.48 (m, 2H), 2.44-2.79 (m, 3H), 1.76
(br. s., 2H), 1.47 (s, 9H), 1.25 (s, 6H), 1.08 (s, 3H).
Preparation of Compound 32-D
[0701] To a yellow suspension of compound 32-C (1.9 g, 6.48 mmol,
1.0 eq.) in anhydrous THF (50 mL) was added LDA (2 M in
THF/heptane, 6.48 mL, 12.9 mmol, 2.0 eq.) dropwise via syringe at
-78.degree. C. The yellow suspension was stirred at -78.degree. C.
for 1 h before TsCN (2.35 g, 12.9 mmol, 2.0 eq.) in anhydrous THF
(10 mL) was added via syringe. The resulting yellow mixture was
stirred at 12.degree. C. for another 18 hrs. TLC (EtOAc/PE=3:1)
indicated completion. The reaction mixture was quenched with Sat.
NH.sub.4Cl (50 mL). After separation, the solvent was removed under
reduced pressure then water layer was extracted with EA (30
mL.times.2). The combined organic layers were dried over anhydrous
sodium sulfate. Filtered and concentrated to give compound 32-D
(2.4 g, crude) as a white solid, which was used for next step
without further purification.
Preparation of Compound 32-E
[0702] To a yellow solution of compound 32-D (2.2 g crude, 6.9
mmol, 1.0 eq.) in toluene (20 mL) was added DDQ (1.57 g, 6.9 mmol,
1.2 eq.) in one portion. The resulting dark mixture was heated to
120.degree. C. for 2 hours. TLC (EtOAc/PE=3:1) indicated
completion. The crude product was purified by column chromatography
(EA/PE=10:1-5:1) to give compound 32-E (700 mg 36.2%) as a yellow
solid.
[0703] 1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.23 (s, 1H),
5.74-5.55 (m, 1H), 4.50-4.21 (m, 1H), 4.06-3.57 (m, 2H), 2.74-2.53
(m, 1H), 1.46 (s, 9H), 1.41 (s, 3H), 1.32 (d, J=6.3 Hz, 6H).
Preparation of Compound 32-F
[0704] To a solution of compound 32-E (200 mg, 0.63 mmol, 1.0 eq)
in EA (5 mL) was added EA/HCl (5 mL) at 12.degree. C. The reaction
mixture was stirred at 12.degree. C. for 2 hours. TLC (PE/EA=2:1)
showed the starting materials were consumed completely. The solvent
was removed to give the crude compound 32-F (220 mg, crude), which
was used for next step without further purification.
Preparation of Compounds 32-Ent1 and 32-Ent2
[0705] To a solution of compound 32-F (220 mg, 1.0 mmol, 1.0 eq)
and TEA (404 mg, 4.0 mmol, 4.0 eq), in DCM (5 mL) was added acetyl
chloride (117 mg, 1.5 mmol, 1.5 eq) at 25.degree. C. for 1 h. The
reaction mixture was stirred at 12.degree. C. for 10 hours. TLC
(PE/EA=2:1) showed the starting material was consumed completely.
The mixture was quenched with saturated NaHCO.sub.3 (30 mL) and
extracted with DCM (20 mL.times.2). The combined organic phase was
dried over sodium sulfate, and filtered. The filtrate was
concentrated in vacuo to give the residue, which was purified by
prep-HPLC (Phenomenex Synergi C18 150*30 mm*4 um, water (0.05%
HCl)-ACN as mobile phase, from 41-61%, Flow Rate (ml/min): 25)) to
give racemic product (100 mg, yield; 41%) as a white solid. Further
separation by SFC (column: AD (250 mm*30 mm, 5 um), condition:
Base-EtOH) to give enantiomer 32-Ent1 (19254-60-1, Rt=6.937 min,
20.1 mg) and 32-Ent2 (19254-60-2, Rt=7.718 min, 25.2 mg) both as
white solid.
Data for 32-Ent1
[0706] .sup.1H NMR: (400 MHz, METHANOL-d.sub.4) .delta.: 7.67 (d,
J=7.8 Hz, 1H), 5.78 (dt, J=18.6, 3.0 Hz, 1H), 4.55-4.49 (m, 1H),
4.34-4.29 (m, 0.6H), 4.06-3.90 (m, 1H), 3.65-3.59 (m, 0.5H), 3.03
(d, J=12.9 Hz, 0.5H), 2.52 (d, J=12.5 Hz, 0.6H), 2.17 (d, J=7.4 Hz,
3H), 1.46-1.39 (m, 3H), 1.34 (d, J=1.6 Hz, 6H).
[0707] HPLC: (Purity: 100%).
[0708] SFC: (ee: 100%).
[0709] LCMS: (M+H: 258.9).
Data for 32-Ent2
[0710] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 7.67 (d,
J=7.8 Hz, 1H), 5.78 (dt, J=18.6, 3.0 Hz, 1H), 4.55-4.49 (m, 1H),
4.34-4.29 (m, 0.6H), 4.06-3.90 (m, 1H), 3.65-3.59 (m, 0.5H), 3.03
(d, J=12.9 Hz, 0.5H), 2.52 (d, J=12.5 Hz, 0.6H), 2.17 (d, J=7.4 Hz,
3H), 1.46-1.39 (m, 3H), 1.34 (d, J=1.6 Hz, 6H).
[0711] HPLC: (Purity: 100%).
[0712] SFC: (ee: 99.85%).
[0713] LCMS: (M+H: 259.3).
Example 22. Synthesis of Compounds 33-Ent1 and 33-Ent2
##STR00050##
[0714] Preparation of Compound 33-A
[0715] To a solution of compound 32-B (1.9 g, 6.8 mmol, 1.0 eq.) in
EtOH (50 mL) was added Pd/C (0.2 g, 10%). The mixture was degassed
with H.sub.2 for 3 times and then stirred at 10.degree. C. for 16 h
under H.sub.2 atmosphere (15 psi). TLC (PE/EA=3/1) showed the
reaction was complete. The mixture was filtered and the filtrate
was concentrated to give compound 33-A (1.9 g, crude) as a
colorless gum.
[0716] .sup.1HNMR: (400 MHz, DMSO-d.sub.6) .delta.=4.11 (br. s.,
1H), 3.85-3.52 (m, 2H), 2.76-2.54 (m, 2H), 2.37-2.09 (m, 3H),
1.61-1.46 (m, 2H), 1.40 (m, 9H), 1.29-1.15 (m, 2H), 1.06-0.80 (m,
6H).
Preparation of Compound 33-B
[0717] To a solution of compound 33-A (1.9 g, 6.75 mmol, 1.0 eq.)
in THF (50 mL) was added LDA (7.3 g, 13.50 mmol, 2.0 eq, 2M)
dropwise at -78.degree. C. The mixture was stirred at -78.degree.
C. for 1 h. Then a solution of TsCN (2.45 g, 13.50 mmol, 2.0 eq) in
THF (10 mL) was added dropwise -78.degree. C. The mixture was
stirred at 10.degree. C. for 16 h. TLC (PE/EA=3/1) showed the
reaction was complete. The reaction mixture was quenched with
NH.sub.4Cl aq. (50 mL) and extracted with EtOAc (50 mL.times.3).
The combined organic layer was dried over Na.sub.2SO.sub.4,
filtered and concentrated to give compound 33-B (2.0 g, crude) as
yellow oil.
Preparation of Compound 33-C
[0718] A mixture of compound 33-B (2.0 g, 6.3 mmol, 1.0 eq.) and
DDQ (2.8 g, 12.5 mmol, 2.0 eq.) in toluene (30 mL) was stirred at
120.degree. C. for 1 h. TLC (PE/EA=3/1) showed the reaction was
complete. The mixture was filtered and the filtrate was
concentrated to give the crude product. It was purified by
chromatography column (PE/EA=10/1) to give compound 33-C (440 mg,
22.0% yield) as a brown solid.
[0719] .sup.1HNMR: (400 MHz, ACETONE-d.sub.6) .delta.=7.79 (s, 1H),
4.34-4.10 (m, 2H), 2.83 (s, 1H), 2.68 (br. s., 1H), 2.57-2.42 (m,
1H), 1.91 (dt, J=3.6, 12.8 Hz, 1H), 1.67 (d, J=12.6 Hz, 1H), 1.51
(d, J=13.8 Hz, 1H), 1.44 (s, 9H), 1.19 (s., 3H), 1.11 (d, J=6.8 Hz,
3H). NOE experiments were used to confirm the relative
stereochemistry.
Preparation of Compound 33-D
[0720] To a solution of compound 33-C (90 mg, 0.3 mmol, 1.0 eq.) in
EtOAc (1 mL) was added HCl/EtOAc (5 mL). The mixture was stirred at
20.degree. C. for 1 h. TLC (PE/EtOAc=3/1) showed the reaction was
complete. The mixture was concentrated to give compound 33-D (71
mg, crude) as a yellow solid.
Preparation of Compounds 33-Ent1 and 33-Ent2
[0721] To a solution of compound 33-D (71 mg, 0.3 mmol, 1.0 eq.)
and TEA (121 mg, 1.2 mmol, 4.0 eq.) in DCM (2 mL) was added acetyl
chloride (28 mg, 0.35 mmol, 1.2 eq.) dropwise. The mixture was
stirred at 10.degree. C. for 30 min. TLC (EtOAc) showed the
reaction was complete. The mixture was purified by prep-TLC (EtOAc)
to give racemic product (50 mg, 69.4% yield) as a white solid. The
racemic product was separated by SFC (Mobile phase: Supercritical
CO.sub.2/EtOH; Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to give 33-Ent1 (Rt=3.911 min, 10.0 mg, 20.0%
yield) as a white solid and single enantiomer 33-Ent2 (Rt=4.554
min, 9.2 mg, 18.4% yield) as a light yellow solid. The absolute
configuration of each enantiomer was not established.
Data for 33-Ent1
[0722] LCMS: (M+H: 247.1)
[0723] HPLC: (100% purity)
[0724] SFC: (ee %: 98.22%)
[0725] .sup.1HNMR: (400 MHz, Acetone) .delta.: 7.81 (d, J=7.6 Hz,
1H), 4.73-4.61 (m, 1H), 4.09-3.97 (m, 1H), 3.14-3.05 (m, 1H), 2.85
(m, 3H), 2.58-2.45 (m, 2H), 1.99-1.87 (m, 1H), 1.73-1.63 (m, 1H),
1.52-1.39 (m, 1H), 1.32-1.21 (m, 2H), 1.19-1.07 (m, 4H).
Data for 33-Ent2:
[0726] LCMS: (M+H: 247.1)
[0727] HPLC: (100% purity)
[0728] SFC: (ee: 98.38%)
[0729] .sup.1HNMR: (400 MHz, Acetone) .delta. 7.81 (d, J=7.6 Hz,
1H), 4.73-4.61 (m, 1H), 4.09-3.97 (m, 1H), 3.14-3.05 (m, 1H), 2.85
(m, 3H), 2.58-2.45 (m, 2H), 1.99-1.87 (m, 1H), 1.73-1.63 (m, 1H),
1.52-1.39 (m, 1H), 1.32-1.21 (m, 2H), 1.19-1.07 (m, 4H).
Example 23. Synthesis of Compounds 34-Ent1 and 34-Ent2
##STR00051##
[0731] A mixture of compound 12-J (200 mg, 0.68 mmol, 1.0 eq.),
2,2-difluoro-2,2-ethyl trifluoromethanesulfonate (300 mg, 1.36
mmol, 2.0 eq) and DIPEA (260 mg, 2.04 mmol, 3.0 eq.) in THF (2 mL)
was stirred at 75.degree. C. for 2 h. LCMS showed the reaction was
complete. The mixture was purified by prep-TLC (PE/EtOAc=4/1) to
give the racemate (120 mg, 54.05% yield) as yellow oil. It was
separated by SFC (Mobile phase: Supercritical CO.sub.2/MeOH;
Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection wavelength:
220 nm) to give 34-Ent1 as the first eluting enantiomer (Rt=2.426
min, 41.0 mg, 34.17% yield) as an off-white solid and 34-Ent2 as
the second eluting enantiomer (Rt=2.729 min, 41.0 mg, 34.17% yield)
as an off-white solid. The absolute stereochemistry was not
determined.
Data for 34-Ent1:
[0732] HPLC: (Purity: 95.98%)
[0733] LCMS: (M+H: 282.6)
[0734] SFC: (ee: 98.713%)
[0735] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.37 (s, 1H),
6.02-5.67 (m, 1H), 3.14-3.08 (m, 1H), 2.81-2.68 (m, 3H), 2.33-2.20
(m, 2H), 1.85-1.73 (m, 1H), 1.70-1.57 (m, 2H), 1.37 (s, 3H), 1.21
(s, 3H), 1.11 (s, 3H).
Data for 34-Ent2:
[0736] HPLC: (Purity: 96.067%)
[0737] LCMS: (M+H: 282.9)
[0738] SFC: (ee: 99.382%)
[0739] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.37 (s, 1H),
6.02-5.69 (m, 1H), 3.14-3.08 (m, 1H), 2.81-2.68 (m, 3H), 2.33-2.21
(m, 2H), 1.83-1.74 (m, 1H), 1.70-1.59 (m, 2H), 1.37 (s, 3H), 1.21
(s, 3H), 1.11 (s, 3H).
Example 24. Synthesis of Compounds 35-Ent1 and 35-Ent2
##STR00052##
[0741] To a solution of Compound 12-J (180 mg, racemate, 0.70 mmol,
1.0 eq) and TBD-1 (104 mg, 1.4 mmol, 2.0 eq) in tol (3 mL) was
added ethyl formate (218 mg, 2.79 mmol, 1.5 eq) at 25.degree. C.
The reaction mixture was stirred at 25.degree. C. for 18 hours. TLC
(PE/EA=1:20) showed the starting materials were consumed
completely. The mixture was concentrated in vacuo to give the
residue, which was purified by prep-TLC (PE/EA=1:20) to give
product (100 mg, yield; 58%) as a white solid. Further separation
by SFC (column: AD (250 mm*30 mm, 5 um), condition: Base-EtOH)
afforded 35-Ent1 as the first eluting enantiomer (Rt=3.807, 4.061
min, 44.5 mg) and 35-Ent2 as the second eluting enantiomer
(Rt=4.960 min, 46.3 mg) both as white solid. The absolute
stereochemistry was not determined.
Data for 35-Ent1:
[0742] .sup.1H NMR (400 MHz, CDCl.sub.3): .delta.: 8.14-7.90 (m,
1H), 7.46-7.28 (m, 1H), 4.64-4.25 (m, 1H), 3.81-3.24 (m, 1H),
3.12-2.95 (m, 1H), 2.44-2.59 (m, 1H), 1.93 (dd, J=9.2, 6.2 Hz, 1H)
1.70-1.57 (m, 2H), 1.20-1.15 (m, 6H), 1.04 (d, J=2.2 Hz, 3H).
[0743] HPLC: (Purity: 96.32%).
[0744] SFC: (ee: 98.1%).
[0745] LCMS: (M+H: 247.1).
Data for 35-Ent2:
[0746] .sup.1H NMR (400 MHz, CDCl.sub.3): .delta.: 8.13-7.91 (m,
1H), 7.46-7.29 (m, 1H), 4.66-4.22 (m, 1H), 3.84-3.21 (m, 1H),
3.16-2.95 (m, 1H), 2.61-2.41 (m, 1H), 1.99-1.87 (m, 1H), 1.71-1.59
(m, 2H), 1.20-1.14 (m, 6H), 1.04 (d, J=2.2 Hz, 3H).
[0747] HPLC: (Purity: 99.69%).
[0748] SFC: (ee: 99.6%).
[0749] LCMS: (M+H: 247.1).
Example 25. Synthesis of Compounds 36-Ent1 and 36-Ent2
##STR00053##
[0751] To a solution of compound 32-F (120 mg, 0.47 mmol, 1.0 eq.)
and TEA (190 mg, 1.88 mmol, 4.0 eq) in DCM (5 mL) was added
pivaloyl chloride (115 mg, 0.94 mmol, 2.0 eq.) dropwise. The
mixture was stirred at 15.degree. C. for 1 h. LCMS showed the
reaction was complete. The mixture was purified by prep-TLC
(PE/EtOAc=2/1) to give the racemate (70 mg, 50.0% yield) as a white
solid. It was separated by SFC (Mobile phase: Supercritical
CO.sub.2/EtOH; Column: Chiralpak (S, S) Whelk-01 250.times.30 mm
I.D., 10 um) to give 36-Ent1 (Rt=5.004 min, 26.0 mg, 37.14% yield)
as a white solid and 36-Ent2 (Rt=3.903 min, 20.1 mg, 28.71% yield)
as a white solid. The absolute stereochemistry was not
determined.
Data for 36-Ent1:
[0752] HPLC: (Purity: 100.0%)
[0753] MS: M+H: 301.1904)
[0754] SFC: (ee: 99.074%)
[0755] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.35 (s, 1H),
5.68 (t, J=3.2 Hz, 1H), 4.61-4.53 (m, 2H), 3.96-3.90 (m, 1H),
2.63-2.59 (m, 1H), 1.44 (s, 3H), 1.39 (s, 3H), 1.37 (s, sH), 1.34
(s, 9H).
Data for 36-Ent2:
[0756] HPLC: (Purity: 96.52%)
[0757] MS: (M+H: 301.1892)
[0758] SFC: (ee: 100%)
[0759] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.35 (s, 1H),
5.68 (t, J=3.2 Hz, 1H), 4.61-4.53 (m, 2H), 3.96-3.90 (m, 1H),
2.63-2.59 (m, 1H), 1.44 (s, 3H), 1.39 (s, 3H), 1.37 (s, sH), 1.34
(s, 9H).
Example 26. Synthesis of Compounds 37-Ent1 and 37-Ent2
##STR00054##
[0761] A mixture of compound 12-J (200 mg, 0.79 mmol, 1.0 eq.),
4-chloropyrimidine (178 mg, 1.58 mmol, 2.0 eq) and DIPEA (1 g, 7.9
mmol, 10.0 eq.) in THF (10 mL) was heated to reflux for 5 h. LCMS
showed the target product was obtained. The mixture was purified by
P-TLC (EA/MeOH=9:1) to give the final product (100 mg, 42.9%). It
was separated by SFC (Mobile phase: Supercritical CO.sub.2/EtOH;
Column: Chiralpak AD (250 mm*30 mm, 5 um); Detection wavelength:
220 nm) to give 37-Ent1 (.about.40 mg, Rt=4.609 min) and 37-Ent2
(.about.30 mg, Rt=5.561 min). The compounds were further purified
by prep-HPLC (Mobile phase A: 0.225% Formic acid in water, Mobile
phase B: acetonitrile; Column: Phenomenex Synergi C18 150*30 mm*4
um, Detection wavelength: 220 nm) to give 37-Ent1 (9.2 mg, 7.8%
yield) as a white solid and 37-Ent2 (11.1 mg, 9.5% yield) as
colorless gum.
Data for 37-Ent1:
[0762] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 8.60 (s, 1H),
8.25 (d, J=6.5 Hz, 1H), 7.52 (s, 1H), 6.57 (d, J=6.5 Hz, 1H), 4.65
(m, 1H), 4.48 (m, 1H), 2.94-2.86 (m, 1H), 2.72 (d, J=12.5 Hz, 1H),
2.03-1.98 (m, 1H), 1.83-1.70 (m, 2H), 1.27 (s, 3H), 1.23 (s, 3H),
1.12 (s, 3H).
[0763] HPLC: (Purity: 100.0%).
[0764] MS: (M+H: 297.1).
[0765] SFC: (ee: 97.9%)
Data for 37-Ent2:
[0766] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 8.61 (s, 1H),
8.25 (d, J=6.0 Hz, 1H), 7.52 (s, 1H), 6.57 (d, J=6.5 Hz, 1H), 4.65
(m, 1H), 4.49 (m, 1H), 2.94-2.86 (m, 1H), 2.72 (d, J=12.5 Hz, 1H),
2.03-1.98 (m, 1H), 1.83-1.70 (m, 2H), 1.27 (s, 3H), 1.23 (s, 3H),
1.12 (s, 3H)
[0767] HPLC: (Purity: 100.0%).
[0768] SFC: (ee: 99.06%)
[0769] MS: (M+H: 297.2).
Example 27. Synthesis of Compound 38-Ent1 and 38-Ent2
##STR00055##
[0771] To a solution of compound 32-F (120 mg, 0.47 mmol, 1.0 eq.)
and TEA (190 mg, 1.88 mmol, 4.0 eq) in THF (5 mL) was added
2-chloropyrimidine (107.1 mg, 0.94 mmol, 2.0 eq.) dropwise. The
mixture was stirred at 75.degree. C. for 2 h. LCMS showed the
reaction was completed. The mixture was purified by prep-TLC
(PE/EtOAc=2/1) to give the racemate (50 mg, 36.0% yield) as a white
solid. It was separated by SFC (Column: OJ 250.times.30 mm I.D., 5
um, Mobile phase: A: Supercritical CO.sub.2, B: ETOH, A:B=70:30 at
60 ml/min, Column Temp: 38.degree. C., Nozzle Pressure: 100 Bar,
Nozzle Temp: 60.degree. C., Evaporator Temp: 20.degree. C., Trimmer
Temp: 25.degree. C., Wavelength: 220 nm) to give 38-Ent1 (8 mg,
Rt=3.580 min) and 38-Ent2 (4.8 mg, Rt=4.535 min) both as white
solid.
[0772] The two isomers are further purified by prep-HPLC
(Phenomenex Synergi C18 150*30 mm*4 um water(HCl, 0.05%)-ACN as
mobile phase, from 26-46%, Flow Rate (ml/min): 25) to give 38-Ent1
(4.8 mg) and 38-Ent2 (2.6 mg) both as white solid.
Data for 38-Ent1:
[0773] HPLC: (Purity: 98.77%)
[0774] LCMS: (M+H: 295.1)
[0775] SFC: (ee: 99.01%)
[0776] .sup.1H NMR: (400 MHz, MeOD) .delta.: 8.59 (d, J=4.7 Hz,
2H), 7.75 (s, 1H), 6.97 (t, J=5.1 Hz, 1H), 5.93 (t, J=3.1 Hz, 1H),
4.92 (d, J=12.5 Hz, 1H), 4.52 (dd, J=18.4, 2.7 Hz, 1H), 4.02 (dd,
J=18.4 3.52 Hz, 1H), 2.98 (d, J=12.5 Hz, 1H), 1.48 (s, 3H), 1.41
(s, 3H), 1.38 (s, 3H).
Data for 38-Ent2:
[0777] HPLC: (Purity: 100%)
[0778] LCMS: (M+H: 295.1)
[0779] SFC: (ee: 99.48%)
[0780] .sup.1H NMR: (400 MHz, MeOD) .delta.: 8.59 (d, J=4.7 Hz,
2H), 7.75 (s, 1H), 6.97 (t, J=5.1 Hz, 1H), 5.93 (t, J=3.1 Hz, 1H),
4.92 (d, J=12.5 Hz, 1H), 4.52 (dd, J=18.4, 2.7 Hz, 1H), 4.02 (dd,
J=18.4, 3.5 Hz, 1H), 2.98 (d, J=12.5 Hz, 1H), 1.48 (s, 3H), 1.41
(s, 3H), 1.38 (s, 3H).
Example 28. Synthesis of Compound 39-Ent1
##STR00056##
[0781] Preparation of Compound 39-A Ent1
[0782] To a solution of compound 12-G Ent1 (10 g, 0.034 mol, 1.0
eq) in Ethyl formate (50.3 g, 0.68 mol, 20.0 eq) was added
NaOMe/MeOH (21 mL, 116 mmol, 3.4 eq, 5.4 M in MeOH) at 0-5.degree.
C. The mixture was stirred at 28.degree. C. under N.sub.2
atmosphere for 18 hours. LCMS showed compound 12-G Ent1 was
consumed completely. The reaction mixture was quenched by water (50
mL), extracted with EtOAc (50 mL.times.2). The combined organic
layer was washed with brine (50 mL.times.1), dried over anhydrous
Na.sub.2SO.sub.4, filtered, concentrated under reduced pressure to
supply crude compound 39-A Ent1 (18.0 g) as pale-yellow solid,
which was used for next step without further purification.
[0783] LCMS: (M-56: 268.4)
Preparation of Compound 39-B Ent1
[0784] To a solution of compound 39-A Ent1 (18 g, 58 mmol, 1.0 eq)
in 20 mL of EtOH/H.sub.2O (V=5:1) was added hydrochloride
hydroxylamine (5.12 g, 70 mmol, 1.0 eq) at 28.degree. C. After
addition the mixture was stirred at 55.degree. C. for 18 h. TLC
(PE/EA=3:1) showed compound 39-A Ent1 was consumed completely. The
mixture was concentrated under reduced pressure to about 10 mL,
diluted with water (100 mL), adjusted pH to 8 by adding saturated
aqueous NaHCO.sub.3, and extracted with EtOAc (50 mL.times.3). The
combined organic layer was washed with brine (30 mL.times.2), dried
over anhydrous Na.sub.2SO.sub.4, filtered, and concentrated to give
the crude, which was purified by column chromatography on silica
gel (PE/EA=15:1-5:1) to supply compound 39-B Ent1 (4.2 g) as
colorless oil.
Preparation of Compound 39-C Ent1
[0785] A mixture of compound 39-B Ent1 (500 mg, 0.63 mmol, 1.0 eq)
in HCl/EA (10 mL) was stirred at 28.degree. C. for 3 hours. TLC
(PE/EA=3:1) showed the starting materials were consumed completely.
The solvent was removed to give the crude compound 39-C Ent1 (600
mg), which was used for next step without further purification.
Preparation of Compound 39-D Ent1
[0786] A solution of compound 39-C Ent1 (600 mg, crude),
oxetan-3-one (1.96 mg, 27.2 mmol) and TEA (1.09 g, 0.72 mmol) in
THF (10 mL) was stirred at 28.degree. C. for 30 min and then
NaBH(OAc).sub.3 (2.3 g, 10.8 mmol) was added. The mixture solution
was stirred at 28.degree. C. for additional 18 hours. LCMS showed
the starting materials were consumed completely. The reaction
solution was poured into water (50 mL) and extracted with EA (50
mL.times.2). The combined organic layers were dried over anhydrous
sodium sulfate, filtered and concentrated to give crude 39-D Ent1
(400 mg), which was used for next step without further
purification.
[0787] LCMS: (M+H: 277.1)
Preparation of Compound 39-E Ent1:
[0788] To a solution of compound 39-D Ent1 (400 mg, crude) in MeOH
(3 mL) was added MeONa/MeOH (3.61 mL, 7.22 mmol, 2M) at 25.degree.
C. The reaction mixture was stirred at 25.degree. C. for 18 hours.
TLC (PE/EA=3:1) showed the starting materials were consumed
completely. The mixture was acidified with HCl (1M) to pH=7-9 and
concentrated to remove MeOH. Then the mixture was diluted into
water (15 mL) extracted with EA (30 mL.times.2). The combined
organic layers were dried over anhydrous sodium sulfate, filtered
and concentrated to give crude 39-E Ent1 (308 mg), which was used
for next step without further purification.
Preparation of Compound 39-Ent1
[0789] To a yellow solution of compound 39-E Ent1 (308 mg, 1.11
mmol, 1.0 eq.) in toluene (10 mL) was added DDQ (252 mg, 1.11 mmol,
1.0 eq.) in one portion. The mixture was heated to 85.degree. C.
for 2 hours. TLC (PE/EA=2:1) showed the starting materials were
consumed completely. The crude product was purified by prep-TLC
(EA/PE=3:1-2:1-1:1) to give the product (100 mg), for which was
further separation by SFC (column: AD (250 mm.times.30 mm, 5 um),
condition: Neu-MeOH) to give compound 39-Ent1 (Rt=3.603 min, 52.6
mg) as colorless oil.
Data for 39-Ent1:
[0790] HPLC: (Purity: 99.49%)
[0791] MS: (M+H: 275.16)
[0792] SFC: (ee: 100%)
[0793] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.29 (s, 1H),
4.65-4.46 (m, 4H), 3.42 (quin, J=6.4 Hz, 1H), 2.84 (br d, J=9.2 Hz,
1H), 2.39 (dd, J=1.4, 10.4 Hz, 1H), 1.82-1.69 (m, 3H), 1.65-1.54
(m, 2H), 1.32 (s, 3H), 1.14 (s, 3H), 1.05 (s, 3H)
Example 29. Synthesis of Compound 39-Ent2
##STR00057##
[0795] To a yellow solution of compound 39-E Ent2 (110 mg, 0.39
mmol, 1.0 eq., prepared in a manner analogous to that described for
39-E Ent1, described previously, except that the starting material
is 12-G Ent2) in toluene (2 mL) was added DDQ (90.5 mg, 0.39 mmol,
1.0 eq.) in one portion. The mixture was heated to 80.degree. C.
for 2 hours. TLC (PE/EA=3:1) showed the starting materials were
consumed completely. The crude product was purified by prep-TLC
(EA/PE=3:1-2:1) to give compound (30 mg). Further separation by SFC
(column: AD (250 mm*30 mm, 5 um), condition: Neu-MeOH) to give
39-Ent2 (Rt=3.847 min, 14.4 mg) as colorless oil.
Data for 39-Ent2:
[0796] HPLC: (Purity: 99.67%)
[0797] LCMS: (M+H: 275.1)
[0798] SFC: (ee: 99.62%)
[0799] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.37 (s, 1H),
4.67-4.51 (m, 4H), 3.51-3.45 (m, 1H), 2.90 (d, J=9.4 Hz, 1H), 2.45
(dd, J=10.2, 1.2 Hz, 1H), 1.86-1.72 (m, 3H), 1.68-1.61 (m, 2H),
1.39 (s, 3H), 1.19 (s, 3H), 1.11 (s, 3H).
Example 30. Synthesis of Compounds 46-Ent1 and 46-Ent2
##STR00058##
[0800] Preparation of Compound 46-B
[0801] To a solution of compound 46-A (ethyl
3-(benzylamino)propanoate, 20 g, 96.6 mol, 1.0 eq) and TEA (11.7 g,
115.9 mol, 1.2 eq) in DCM (200 mL) was added 2-phenylacetyl
chloride (14.9 g, 96.6 mol, 3 eq) dropwise. The mixture was stirred
at 28.degree. C. for 18 hours. TLC (PE:EA=1:1) showed a little
starting material still remained (R.sub.f=0.2) and a new spot was
detected (R.sub.f=0.8). The mixture was poured into Sat.
NaHCO.sub.3 (50 mL) and extracted with DCM (50 mL.times.3). The
combined organic phase was dried over Na.sub.2SO.sub.4, filtered
and concentrated to give the residue, which was purified by column
chromatography (eluting with PE:EA=50:1-5:1) and further purified
by column chromatography (eluting with PE) to give compound 46-B
(27 g, 80%) as colorless oil.
[0802] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 7.36-7.25 (m,
8H), 7.09 (d, J=7.1 Hz, 2H), 4.65-4.47 (m, 3H), 4.19-4.10 (m, 4H),
3.84 (s, 1H), 2.02 (s, 2H), 1.22-1.19 (m, 3H).
Preparation of Compound 46-C
[0803] To a solution of compound 46-B (18 g, 55.6 mol, 1.0 eq) in
THF (100 mL) was added NaH (2.8 g, 71.9 mol, 1.3 eq) in many
portions at 0.degree. C. The mixture was stirred at reflux for 18
hours. TLC (PE:EA=1:1) showed the starting material was consumed
completely. The mixture was poured into Sat. NH.sub.4Cl (50 mL) and
extracted with EA (50 mL.times.3). The combined organic phase was
dried over Na.sub.2SO.sub.4, filtered and concentrated to give the
residue, which was purified by column chromatography (eluting with
PE:EA=30:1-5:1) and further purified by column chromatography
(eluting with PE) to give compound 46-C (6 g, 25%) as a white
solid.
Preparation of Compound 46-D
[0804] To a solution of compound 46-C (2 g, 7.16 mol, 1.0 eq) and
TEA (2 g, 7.16 mol, 1.0 eq) in MeCN (100 mL) was added EVK (818 mg,
8.6 mol, 1.2 eq) dropwise at 0.degree. C. The mixture was stirred
at reflux for 18 hours. TLC (PE:EA=8:1) showed the starting
material was consumed completely. The mixture was poured into water
(50 mL) and extracted with EA (50 mL.times.3). The combined organic
phase was dried over Na.sub.2SO.sub.4, filtered and concentrated to
give compound 46-D (2.8 g, crude), which was used for next step
without further purification.
Preparation of Compound 46-E
[0805] To a solution of compound 46-D (2.8 g, 7.7 mol, 1.0 eq) in
MeOH (20 mL) was added MeONa/MeOH (3.85 mL, 7.7 mol, 2M, 1.2 eq)
dropwise at 0.degree. C. The mixture was stirred at reflux for 18
hours. TLC (PE:EA=8:1) showed the starting material was consumed
completely. The mixture was poured into Sat.NH.sub.4Cl (50 mL) and
extracted with EA (50 mL.times.3). The combined organic phase was
dried over Na.sub.2SO.sub.4, filtered and concentrated to give the
residue, which was purified by column chromatography (eluting with
PE:EA=30:1-5:1) and further purified by column chromatography
(eluting with PE) to give compound 46-E (1.1 g, 60%) as a white
solid.
[0806] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 7.34-7.24 (m,
8H), 7.14-7.09 (m, 2H), 4.62 (d, J=1.1 Hz, 2H), 3.08-3.00 (m, 1H),
2.88 (m, 1H), 2.71-2.56 (m, 3H), 2.54-2.45 (m, 1H), 2.36 (J=16.8,
3.6 Hz, 1H), 2.15-2.05 (m, 1H), 1.88 (s, 3H).
Preparation of Compound 46-F
[0807] The reactions were set in two batches in parallel.
[0808] A mixture of compound 46-E (1.1 g, 3.17 mol, 1.0 eq.) and
Pd/C (200 mg) in ethanol (20 mL) was stirred under 15 psi of
H.sub.2 at 27.degree. C. for 18 hours. TLC (PE/EtOAc=2:1) indicated
completion. The suspension was filtered through a pad of celite and
washed with EA (200 mL.times.2), the filtrate was concentrated
under reduce pressure to give a crude product of compound 46-F (900
mg, crude), for which was purified by Prep-HPLC to give compound
46-F (300 mg, 27.3%) as a white solid.
[0809] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 7.78-7.65 (m,
2H), 7.37-7.21 (m, 6H), 7.13-7.04 (m, 2H), 4.47-4.43 (m, 2H),
3.20-3.00 (m, 2H), 2.94-2.82 (m, 1H), 2.79-2.68 (m, 1H), 2.37-2.27
(m, 3H), 2.18-2.08 (m, 2H), 2.04-1.93 (m, 1H), 1.12 (d, J=6.4 Hz,
3H).
Preparation of Compound 46-G
[0810] To a solution of compound 46-F (140 mg, 0.4 mmol, 1.0 eq) in
Ethyl formate (2 mL) was added NaOMe (0.25 mL, 1.36 mmol, 3.4 eq,
5.4 M in MeOH) at 0-5.degree. C. The mixture was stirred at
23.degree. C. under N.sub.2 atmosphere for 1 h and turned to a
suspension. LCMS (19207-12-1A) showed the reaction completion. The
reaction mixture was diluted with toluene (10 mL), quenched with
aq.HCl (1M) until pH=7 and extracted with EtOAc (25 mL.times.3).
The combined organic phase was dried over anhydrous
Na.sub.2SO.sub.4, filtered, concentrated under reduced pressure to
supply crude compound 46-G (130 mg, crude) as a yellow gum, which
was used directly in the next step without purification.
[0811] MS: (M+H 376.6)
Preparation of Compound 46-H
[0812] To a solution of compound 46-G (130 mg, 0.34 mmol, 1.0 eq)
in EtOH/H.sub.2O (V=10:1, 3 mL) was added hydrochloride
hydroxylamine (24.2 mg, 0.34 mmol, 1.0 eq). The mixture was stirred
at 50.degree. C. for 18 hours. LCMS showed the reaction was
completed. The mixture was concentrated under reduced pressure to
give the residue, which was diluted with water (20 mL). The mixture
was extracted with EtOAc (25 mL.times.3). The combined organic
layer was dried over anhydrous Na.sub.2SO.sub.4, filtered, and
concentrated under reduced pressure to give compound 46-H (105 mg,
crude) as a yellow gum, which was used directly in the next step
without purification.
[0813] MS: (M+H 373.3)
Preparation of Compound 46-I
[0814] To a solution of compound 46-H (105 mg, 0.28 mmol, 1.0 eq)
in MeOH (2 mL) was added NaOMe/MeOH (0.56 mL, 1.12 mmol, 4.0 eq,
2M). The mixture was stirred at 25.degree. C. for 18 hours. TLC
(PE/EA=3:1) showed the reaction was completed. The mixture was
acidified with HCl (1M) to make pH=7-9, which was diluted with
water (20 mL) and extracted with EtOAc (20 mL.times.2). The
combined organic phase was dried over anhydrous Na.sub.2SO.sub.4,
filtered, and concentrated under reduced pressure to give compound
46-I (110 mg, crude), which was used directly in the next step
without purification.
Preparation of Compounds 46-Ent1 and 46-Ent2
[0815] To a solution of compound 46-I (110 mg, 0.48 mmol, 1 eq) in
toluene (3 mL) was added DDQ (109.9 mg, 0.48 mmol, 1 eq). The
mixture was stirred at 80.degree. C. for 3 hours and turned to a
suspension. The mixture was concentrated in vacuo to give the
residue, which was purified by Pre-HPLC (PE/EA=3:1) to give racemic
product (45 mg).
[0816] Further separation by SFC (column: AD (250 mm.times.30 mm,
10 um), condition: Neu-MeOH) to give enantiomer 46-Ent1 (Rt=3.670
min, 15.4 mg) and 46-Ent2 (Rt=6.337 min, 21.4 mg), both as
oils.
Data for 46-Ent1
[0817] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.46 (s, 1H),
7.40-7.30 (m, 8H), 7.09-7.03 (m, 2H), 4.89-4.81 (m, 1H), 4.55 (d,
J=14.1 Hz, 1H), 3.57-3.37 (m, 2H), 2.41-2.32 (m, 2H), 1.80-1.77 (m,
1H), 1.65-1.58 (m, 1H), 1.08 (br d, J=6.3 Hz, 3H).
[0818] HPLC: (Purity: 94.06%).
[0819] SFC: (ee 100%).
[0820] LCMS: (M+H: 371.1).
Data for 46-Ent2
[0821] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.46 (s, 1H)
7.40-7.29 (m, 8H), 7.09-7.03 (m, 2H), 4.89-4.80 (m, 1H), 4.55 (d,
J=14.1 Hz, 1H), 3.57-3.38 (m, 2H), 2.42-2.31 (m, 2H), 1.80-1.77 (m,
1H), 1.65-1.57 (m, 1H), 1.08 (br d, J=6.3 Hz, 3H).
[0822] HPLC: (Purity: 98.14%).
[0823] SFC: (ee 100%).
[0824] LCMS: (M+H: 371.1).
Example 31. Synthesis of Compound 47-Ent1
##STR00059##
[0825] Preparation of Compound 47-A Ent1
[0826] The starting material 39-B-Ent1 (600 mg) was recrystallized
(20 mL, PE/EtOAc=10/1) from crude compound 38-B-Ent1 (2 g, ee
value=.about.87%).
[0827] To a solution of compound 39-B-Ent1 (600 mg, 1.8 mmol, 1.0)
in MeOH (3 mL) was added MeONa/MeOH (3.75 mL, 7.5 mmol, 2M) at
27.degree. C. The reaction mixture was stirred at 27.degree. C. for
18 hours. TLC (PE/EA=3:1) showed the starting materials were
consumed completely. The mixture was acidified with HCl (1M) to
make pH=7-9 and concentrated to remove MeOH. The mixture was
diluted into water (50 mL) and extracted with EA (30 mL.times.2).
The combined organic layers were dried over anhydrous sodium
sulfate, filtered and concentrated to give crude 47-A Ent1 (620 mg)
as yellow oil, which was used for next step without further
purification.
Preparation of Compound 47-B Ent1
[0828] To a yellow solution of compound 47-A Ent1 (620 mg, 2.32
mmol, 1.0 eq.) in toluene (3 mL) was added DDQ (527 mg, 2.32 mmol,
1.0 eq.) in one portion. The mixture was heated to reflux for 2
hours. TLC (PE/EA=3:1) showed the starting materials were consumed
completely. The crude product was purified by prep-TLC
(EA/PE=20:1-5:1) to give compound 47-B Ent1 (320 mg) as a white
solid.
[0829] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 7.42 (s, 1H),
4.54-3.83 (m, 2H), 2.82-2.46 (m, 2H), 1.81 (dd, J=2.7, 12.3 Hz,
1H), 1.74-1.61 (m, 2H), 1.45 (s, 9H), 1.20 (d, J=3.3 Hz, 6H), 1.08
(s, 3H)
Preparation of Compound 47-C Ent1
[0830] To a solution of compound 47-B Ent1 (150 mg, 0.47 mmol, 1.0
eq) in EA (15 mL) was added HCl/EA (3 mL) at 25.degree. C. The
reaction mixture was stirred at 25.degree. C. for 2 hours. TLC
(PE/EA=2:1) showed the starting materials were consumed completely.
The solvent was removed to give the crude compound 47-C Ent1 (130
mg, crude) as a white solid, which was used for next step without
further purification.
Preparation of Compound 47-Ent1
[0831] To a solution of compound 47-C Ent1 (130 mg, 0.59 mmol) and
TEA (95.2 mg, 0.94 mmol) in DMF (3 mL) was added
1-bromo-2-fluoroethane (118 mg, 0.94 mmol) dropwise. The mixture
was stirred at 110.degree. C. for 1 h. TLC (PE/EA=3:1) showed the
reaction was complete. The mixture was purified by prep-TLC
(PE/EtOAc=2/1) to give 47-Ent1 (Rt=2.694 mins, 39.8 mg) as
colorless oil.
Data for 47-Ent1
[0832] HPLC: (Purity: 98.83%)
[0833] LCMS: (M+H: 265.1)
[0834] SFC: (ee: 96.3%)
[0835] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.37 (s, 1H),
4.67-4.38 (m, 2H), 3.08 (br d, J=9.8 Hz, 1H), 2.84-2.59 (m, 3H),
2.24-2.03 (m, 2H), 1.65 (br d, J=10.6 Hz, 2H), 1.56 (br d, J=12.5
Hz, 1H), 1.34 (br s, 3H), 1.18 (br s, 3H), 1.08 (br s, 3H).
Example 32. Synthesis of Compounds 48-Ent1 and 48-Ent2
##STR00060## ##STR00061##
[0836] Preparation of Compounds 32-E Ent1 and Ent2
[0837] Racemic compound 32-E (3.0 g, 9.5 mmol, 1 eq) was separated
by SFC (Mobile phase: Supercritical Neutral: CO.sub.2/EtOH; Column:
150 mm.times.4.6 mm, 3 um; Detection wavelength: 220 nm) to give
32-E Ent1 (Rt=3.781 min, 830 mg, 27.7% yield) as a white solid and
32-E Ent2 (Rt=5.448 min, 680 mg, 22.7% yield) as a white solid. The
absolute stereochemistry of each enantiomer depicted in the above
scheme was assigned arbitrarily and was not determined.
Data for 32-E Ent1:
[0838] HPLC: (Purity: 85.25%)
[0839] SFC: (ee: 100%)
[0840] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.31 (s, 1H),
5.75-5.58 (m, 1H), 4.52-4.23 (m, 1H), 4.16-3.90 (m, 1H), 3.78-3.62
(m, 1H), 2.78-2.56 (m, 1H), 1.50 (s, 9H), 1.45 (s, 3H), 1.36 (d,
J=6.1 Hz, 6H).
Data for 32-E-Ent2:
[0841] HPLC: (Purity: 96.62%)
[0842] SFC: (ee: 100%)
[0843] .sup.1H NMR: (400 MHz, CD3CN) .delta.=7.31 (s, 1H),
5.75-5.58 (m, 1H), 4.52-4.23 (m, 1H), 4.16-3.90 (m, 1H), 3.78-3.62
(m, 1H), 2.78-2.56 (m, 1H), 1.50 (s, 9H), 1.45 (s, 3H), 1.36 (d,
J=6.1 Hz, 6H)
Preparation of Compound 32-F Ent1
[0844] To a solution of compound 32-E Ent1 (830 mg, 2.6 mmol, 1.0
eq) in EtOAc (10 mL) was added HCl/EA (1.4 mL) at 25.degree. C. The
reaction mixture was stirred at 25.degree. C. for 3 hours. TLC
(PE/EA=3:1) showed the starting materials were consumed completely.
The solvent was removed to give the crude compound 32F Ent1 (650
mg, crude), which was used for the next step without further
purification.
Preparation of Compound 48 Ent1
[0845] To a solution of compound 32-F Ent1 (250 mg, 0.99 mmol, 1.0
eq) and (CH.sub.2O)n (148.5 mg, 4.95 mmol, 5.0 eq) in HCOOH (4 mL)
was stirred at 90.degree. C. for 2 h. TLC showed that the starting
material was consumed and a new spot was detected (Rf=0.5). The
reaction mixture was poured into Sat. NaHCO.sub.3 to keep the pH=7
and extracted with EtOAc (30 mL.times.3). The combined organic
layer was dried over Na.sub.2SO.sub.4, filtrated and concentrated
to get the residue, which was purified by prep-TLC (EtOAc) to give
the 19203-84-1 (150 mg, crude) and further purified by preparation
of HPLC (column: Phenomenex Synergi C18 150*30 mm*4 um; Mobile
phase: from 0% to 14% water (0.05% HCl)-ACN) to give 48-Ent1 (60
mg, 26.4% yield) as white solid. The absolute stereochemistry was
not determined.
Data for 48-Ent1
[0846] HPLC: (Purity: 99.41%)
[0847] MS: (M+H: 231.1424)
[0848] Chiral SFC: (ee: 79.952%)
[0849] .sup.1H NMR: (400 MHz, D.sub.2O) .delta.=7.68 (s, 1H), 5.75
(s, 1H), 4.10-3.97 (m, 1H), 3.69-3.50 (m, 2H), 3.15 (br d, J=12.1
Hz, 1H), 2.97 (s, 3H), 1.63 (s, 3H), 1.34 (br d, J=8.6 Hz, 6H)
[0850] Compound 48-Ent2 can be made in an analogous manner to that
described for 48-Ent1, starting with 32-E Ent2.
Data for 48-Ent2
[0851] HPLC: (Purity: 96.64%)
[0852] MS: (M+H: 231.14)
[0853] Chiral SFC: (ee 95.37%)
[0854] .sup.1H NMR: (400 MHz, D.sub.2O) .delta.=7.68 (s, 1H), 5.75
(s, 1H), 4.09-3.98 (m, 1H), 3.71-3.50 (m, 1H), 3.70-3.50 (m, 1H),
3.20-3.10 (m, 1H), 3.01-2.95 (m, 3H), 2.98 (s, 3H), 1.34 (br d,
J=8.4 Hz, 6H)
Example 33. Synthesis of Compound 49-Ent1
##STR00062##
[0855] Preparation of Compound 49-A
[0856] The reaction was set in two batches in parallel and work-up
was combined.
[0857] To a stirred solution of LDA (2 M in THF, 600 mL, 1.2 mol,
1.2 eq) in THF (200 mL) was added a solution of
tetrahydro-4H-pyran-4-one (100 g, 1.0 mol, 1.0 eq.) and HMPA (175
mL) in THF (600 mL) dropwise at -70.degree. C. under N.sub.2, and
the reaction mixture was stirred at -70.degree. C. for 1 h. Then
Methyl iodide (695.44 g, 4.9 mol, 4.9 eq) in THF (200 mL) was added
to the above reaction mixture at -70.degree. C., and the reaction
mixture was stirred at 25.degree. C. for 16 h. TLC (PE/EA=4:1)
showed the starting material was remained with the desired spot
detected. The reaction mixture was quenched by saturated ammonium
chloride solution (50 mL). EtOAc (100 mL) and H.sub.2O (200 mL)
were added. The two phases were separated, and the aqueous phase
was extracted with EtOAc (200 mL.times.10). The combined organic
phase was dried over anhydrous Na.sub.2SO.sub.4, filtered and
concentrated to give a crude product, which was purified together
with batch 19225-129-1 by column chromatography (PE/EA=50:1 to
20:1) to give compound 49-A as colorless oil (10 g, pure) and 56 g
of crude compound 49-A.
[0858] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 4.22-4.11 (m,
2H), 3.69-3.67 (m, 1H), 3.29 (t, J=10.8 Hz, 1H), 2.66-2.62 (m, 2H),
2.38-2.35 (m, 1H), 0.96 (d, J=10.8 Hz, 1H).
Preparation of Compound 49-B
[0859] To a solution of compound 49-A (10 g, 87.7 mmol, 1.0 eq) in
PhMe (150 mL) was added (R)-1-phenylethan-1-amine (10.6 g, 87.7
mmol, 1.0 eq) and TsOH (151 mg, 0.88 mmol, 0.01 eq) at 25.degree.
C. The reaction mixture was stirred at 140.degree. C. with a
Dean-Stark apparatus for 5 h. Then the reaction mixture was cooled
to room temperature, concentrated in vacuo. PhMe (20 mL) was added,
the formed solid was filtered off, and the filtrate was
concentrated under reduced pressure to supply the crude compound
49-B, which was used for next step directly.
Preparation of Compound 49-C Ent1
[0860] A mixture of compound 49-B (20.5 g, 94.5 mmol, 1.0 eq) and
ethyl vinyl ketone (15.9 g, 189 mmol, 2.0 eq.) in 150 mL of
anhydrous THF was stirred at 25.degree. C. for 3 day. After that a
solution of 20% aqueous acetic acid (20 mL) was added below
20.degree. C. and the mixture was stirred at 25.degree. C. for 3 h.
The solvent were removed under reduced pressure. 1 N HCl (80 mL)
was added to the residue oil, followed by EtOAc (80 mL). TLC
(PE/EA=4:1) showed a new spot was detected. The two phases were
separated, and the aqueous phase was extracted with EtOAc (40
mL.times.3). The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4. Filtered, the filtrate was concentrated under
reduced pressure and the residue was purified by column
chromatography on silica gel (PE/EA=40:2.about.10:1) to supply
compound 49-C Ent1 (12 g, crude) as yellow oil, which was used for
the next step.
Preparation of Compound 49-D Ent1
[0861] To a solution of compound 49-C Ent1 (2.5 g, 12.6 mmol, 1.0
eq.) in MeOH (18.9 mL) was added MeONa (2M, 18.9 mL, 37.8 mmol, 3.0
eq.) at 0.degree. C., and the reaction mixture was heated to
55.degree. C. for 16 h. TLC (PE/EA=4:1) showed compound 49-C Ent1
was consumed completely. The solvent was removed in vacuo to give a
residue. EtOAc (30 mL) and H.sub.2O (20 mL) were added, and the two
phase were separated. The aqueous layer was separated and extracted
with EtOAc (20 mL.times.3). The combined organic phase was dried
over anhydrous Na.sub.2SO.sub.4. Filtered and concentrated, the
residue was purified by column chromatography on silica gel
(PE/EA=20:1.about.4:1) to supply compound 49-D Ent1 (1.7 g, 74.9%)
as yellow oil.
[0862] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 4.16-4.13 (m,
1H), 3.59 (d, J=11.2 Hz, 1H), 3.42-3.35 (m, 1H), 3.13 (d, J=11.2
Hz, 1H), 2.52-2.45 (m, 4H), 1.76 (s, 3H), 1.60-1.56 (m, 2H), 1.34
(s, 3H).
Preparation of Compound 49-E Ent1
[0863] To a solution of compound 49-D Ent1 (1.7 g, 9.4 mmol, 1.0
eq.) in THF (40 mL) was added t-BuOK (1M in THF, 14.1 mL, 14.1
mmol, 1.5 eq.) dropwise at 0.degree. C. under N.sub.2, and the
reaction mixture was stirred at 25.degree. C. for 1 h. Then MeI
(2.0 g, 14.1 mmol, 1.5 eq.) in THF (10 mL) was added to the above
reaction mixture at 0.degree. C. After addition, the reaction
mixture was stirred at 25.degree. C. for another 1 h. TLC
(PE:EA=4:1) showed the starting material was consumed. Saturated
NH.sub.4Cl (5 mL) was added to quench the reaction, followed by
EtOAc (10 mL) and H.sub.2O (10 mL). The two phases were separated,
and the aqueous phase was extracted with EtOAc (10 mL.times.3). The
combined organic phase was dried over Na.sub.2SO.sub.4, filtered,
concentrated to give a crude product, which was purified by column
chromatography (PE:EA=20:1 to 5:1) to give compound 49-E Ent1 as
yellow oil (1.1 g, 60.1%).
[0864] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.55 (s, 1H),
4.26-4.21 (m, 2H), 3.55 (d, J=10.4 Hz, 1H), 3.29 (d, J=10.4 Hz,
1H), 2.61-2.50 (m, 2H), 1.70-1.62 (m, 2H), 1.28 (s, 3H), 1.26 (s,
3H), 1.23 (s, 3H).
Preparation of Compound 49-F Ent1
[0865] To a solution of compound 49-E Ent1 (350 mg, 1.8 mmol, 1.0
eq.) in THF (8 mL) was added LDA (1.08 mL, 2.16 mmol, 1.2 eq.) at
-78.degree. C. under N.sub.2. The reaction mixture was stirred at
-78.degree. C. for 1 h. Then TsCN (391 mg, 2.16 mmol, 1.2 eq.) in
THF (2 mL) was added dropwise to the above reaction mixture at
-78.degree. C., and the reaction mixture was stirred at this
temperature for 1.5 h. TLC (PE:EA=4:1) showed the starting material
was consumed. Saturated NH.sub.4Cl (5 mL) was added to quench the
reaction, followed by H.sub.2O (5 mL). The two phases were
separated, and the aqueous phase was extracted with EtOAc (10
mL.times.2). The combined organic phase was dried over
Na.sub.2SO.sub.4, filtered, concentrated to give a crude product,
which was purified by column chromatography (PE/EA=20:1 to 4:1) to
give a crude product compound 49-F Ent1 (0.2 g, 50.6%), which was
used for the next step.
Preparation of Compound 49-Ent1
[0866] A reaction mixture of compound 49-F Ent1 (200 mg, 0.91 mmol,
1.0 eq.) and DDQ (247 mg, 1.09 mol, 1.2 eq.) in PhMe (10 mL) was
stirred under reflux for 1.5 h. TLC (PE/EA=3:1) showed the starting
material was consumed with new spot detected. The solvent was
concentrated to give a crude product, which was purified together
with batch 19225-144-1 by prep-TLC (PE/EA=2:1) to give 49-Ent1
(157.6 mg, 79.6%) as white solid. The enantiomeric excess was not
definitively determined.
[0867] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 7.20 (s, 1H),
5.68 (s, 1H), 4.37 (dd, J=17.2, 2.6 Hz, 2H), 3.67 (d, J=10.4 Hz,
1H), 3.29 (d, J=10.4 Hz, 1H), 1.60 (s, 3H), 1.38 (s, 3H), 1.36 (s,
3H).
[0868] HPLC: (95.16%)
[0869] MS: (M+H: 218.1)
Example 34. Synthesis of Compound 50-Ent1
##STR00063##
[0870] Preparation of Compound 50-A-Ent1
[0871] To a solution of compound 49-E-Ent1 (1.5 g, 7.73 mmol, 1.0
eq.) in THF (30 mL) was added LiAlH.sub.4 (0.35 g, 9.27 mmol, 1.2
eq.) at 0.degree. C. The mixture was stirred at this temperature
for 1 h. TLC (PE/EA=4/1) showed the reaction was complete. The
reaction was quenched with H.sub.2O (0.35 mL) showly at 0.degree.
C., then, aq. NaOH (15%, 0.35 mL) and H.sub.2O (1.05 mL) were
added. The mixture was dried over Na.sub.2SO.sub.4, filtered and
the filtrate was concentrated to give the crude compound 50-A-Ent1
(1.46 g, 96.6% yield) which was used for the next step without
further purification as white solid.
[0872] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.49 (s., 1H),
4.20 (s., 2H), 3.44 (d, J=10.4 Hz, 1H), 3.12 (d, J=10.4 Hz, 1H),
1.88-1.69 (m, 2H), 1.37-1.36 (m, 1H), 1.27 (s, 3H), 1.27-1.20 (m,
1H), 1.14 (s, 3H), 1.09 (s, 3H).
Preparation of Compound 50-B-Ent1
[0873] To a solution of compound 50-A-Ent1 (1.46 g, 7.45 mmol, 1.0
eq.) in MeOH (20 mL) was added Pd/C (10%, 0.3 g, 20% w/w) under
N.sub.2, the solution was degassed and purged with H.sub.2 for 3
times. The mixture was stirred under H.sub.2 (50 Psi) at 50.degree.
C. for 16 h. TLC showed the reaction was complete. The mixture was
filtered and the filtrate was concentrated to give the crude
compound 50-B-Ent1 (1.3 g, 89% yield) as oil which was used for the
next step without further purification.
Preparation of Compound 50-C-Ent1
[0874] To a mixture of Compound 50-B-Ent1 (1.3 g, 6.56 mmol, 1.0
eq.) in DCM (20 mL) was added DMP (3.3 g, 7.87 mmol, 1.2 eq.), the
mixture was stirred at 12.degree. C. for 3 h. TLC (PE:EA=3:1)
showed the reaction was complete. The mixture was filtered and the
filtrate was washed with aq. NaHCO.sub.3 (20 mL), the combined
organic layer was concentrated to give the crude product which was
purified by column chromatography on silica gel (PE:EA=20:1 to 5:1)
to give compound 50-C-Ent1 (1.2 g, 93.7%) as oil.
Preparation of Compound 50-D-Ent1
[0875] To a solution of compound 50-C-Ent1 (1.2 g, 6.12 mmol, 1.0
eq.) in THF (15 mL) was added LDA (2M in hexane, 6.12 mL, 12.24
mmol, 2.0 eq.) at -78.degree. C., the mixture was stirred at this
temperature for 1.5 h, then, TsCN (2.2 g, 12.24 mmol, 2.0 eq.) in
THF (5 mL) was added, the mixture was stirred at 12.degree. C. for
16 h. TLC (PE/EA=3/1) showed the reaction was complete. The mixture
was quenched with sat. NH.sub.4Cl (30 mL) and extracted with EA (10
mL.times.3), the combined organic layers was dried over
Na.sub.2SO.sub.4, filtered and the filtrate was concentrated to
give crude product, which was purified by column chromatography on
silica gel (PE:EA=20:1 to 10:1) to give compound 50-D-Ent1 (0.6 g,
44.4%) as solid.
Preparation of Compound 50-Ent1
[0876] To a solution of compound 50-D-Ent1 (300 mg, 1.35 mmol, 1.0
eq.) in toluene (50 mL) was added DDQ (0.6 g, 2.7 mmol, 2.0 eq.),
the mixture was stirred at 50.degree. C. for 16 h. TLC (PE:EA=3:1)
showed the reaction was complete. The mixture was concentrated in
vacuum. The residue was purified by column chromatography
(PE/EA=15/1) to give the product which was further purified by
prep-HPLC (Mobile phase A: 0.225% formic acid in water, Mobile
phase B: acetonitrile; Column: Agela ASB 150*25 mm*5 um, Detection
wavelength: 220 nm) to give compound 50-Ent1 (38 mg, 12.7% yield)
as a light yellow solid. A single isomer of product was obtained.
2-D NMR NOESY studies were inconclusive in determining the relative
stereochemistry of the ring fusion in this product.
[0877] HPLC: (Purity: 100%).
[0878] LCMS: (M+H: 220.1).
[0879] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.33 (s, 1H),
3.98-3.88 (m, 1H), 3.75 (d, J=11.6 Hz, 1H), 3.36-3.35 (m, 1H), 3.24
(d, J=12.0 Hz, 1H), 1.84-1.83 (m, 1H), 1.75-1.67 (m, 1H), 1.34 (s,
3H), 1.34-1.33 (m, 1H), 1.30 (s, 3H), 1.17 (s, 3H).
Example 35. Synthesis of Compound 51-Ent1 and 51-Ent2
##STR00064## ##STR00065## ##STR00066##
[0881] Stereochemical note for compounds 51-53: The synthesis of
intermediate compound 51-E described below was adapted from Jabin,
I.; Revial, G.; Melloul, K.; Pfau, M. Tetrahedron: Asymmetry, 1997,
8 1101. The ee of compound 51-E obtained by Jabin et al. was
reported to be .about.70% and was not confirmed.
Preparation of Compound 51-B
[0882] The reaction was set in two batches in parallel and work-up
was combined.
[0883] To a stirred solution of 1 M of Lithium hexamethyldisilazide
in THF (1.056 L, 1.056 mol, 1.03 eq) at -60.degree. C. was added
compound 51-A (160 g, 1.026 mol, 1 eq) in DMF (600 mL) slowly using
an addition funnel and keeping the temperature below -60.degree. C.
The reaction mixture was allowed to stir below -60.degree. C. for
1.5 h, and then treated with Methyl iodide (142 g, 1.00 mol, 0.99
eq) dropwise. Warmed to room temperature and stirred for 20 h. TLC
(PE/EA=3:1) showed a little compound 51-A remained. The reaction
mixture was quenched by half-saturated ammonium chloride solution
(1.5 L) below 20.degree. C. Extracted with MTBE (1 L.times.6). The
combined organic phase was concentrated under reduced pressure to
about 2 L, washed with brine (500 mL.times.3). The brine layer was
extracted with MTBE (500 mL.times.3). The combined organic layer
was dried over anhydrous Na.sub.2SO.sub.4, filtered and
concentrated. The residue was azeotroped with heptane 4 times (300
mL.times.4). The resultant oil was slurried with heptanes
(.about.800 mL) until it dissolved at room temperature, and then
cooled to -10.degree. C. with vigorous stirring. The reaction oiled
out but eventually crystallized. The pale-yellow solid was filtered
and rinsed with heptanes (300 mL.times.3) to supply compound 51-B
(260 g, 74.5% yield) as pale-yellow solid.
[0884] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 4.14-3.92 (m,
4H), 2.81-2.58 (m, 2H), 2.44-2.31 (m, 1H), 2.16-1.89 (m, 3H),
1.78-1.67 (m, 1H), 1.03 (d, J=6.7 Hz, 3H)
Preparation of Compound 51-C
[0885] To 2 L of round bottom flask containing compound 51-B (50 g,
0.294 mol, 1.0 eq), (R)-1-phenylethan-1-amine (35.2 g, 0.291 mol,
1.0 eq) and TsOH (0.505 g, 2.94 mmol, 0.01 eq) in 600 mL of
anhydrous toluene was fitted with a Dean-Stark and heated to reflux
for 20 h. The reaction was cooled to room temperature, concentrated
to about 300 mL, the formed solid was filtered off, the filtrate
was concentrated under reduced pressure to supply crude compound
51-C which was used for next step directly.
Preparation of Compound 51-D Ent2
[0886] To the solution of compound 51-C (80.29 g, 0.294 mol, 1.0
eq) in 100 mL of anhydrous THF was added ethyl vinyl ketone (39.04
g, 0.441 mol, 1.5 eq). After addition the mixture was stirred at
room temperature for 6 days under nitrogen. After that 120 mL of a
solution of 20% aqueous acetic acid was added below 20.degree. C.
and the mixture was stirred at 25.degree. C. for 3 h. The solvents
were removed under reduced pressure. 1 N HCl (40 mL) was added to
the residue oil. The mixture was diluted with water (100 mL),
extracted with MTBE (200 mL.times.4), the combined organic layers
was washed with brine (200 mL.times.2), dried over anhydrous
Na.sub.2SO.sub.4. Filtered, the filtrate was concentrated under
reduced pressure and the residue was purified by column
chromatography on silica gel (PE/EA=30:1-20:1-10:1) to supply
compound 51-D Ent2 (44 g, 59% yield) as yellow oil and 10 g of
impure compound 51-D Ent2 as yellow oil.
[0887] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 3.98 (d, J=2.0
Hz, 4H), 2.65-2.46 (m, 2H), 2.45-2.32 (m, 3H), 2.28-2.17 (m, 1H),
2.14-2.06 (m, 1H), 2.01-1.90 (m, 3H), 1.85-1.69 (m, 2H), 1.10 (s,
3H), 1.03 (t, J=7.3 Hz, 3H).
Preparation of Compound 51-E Ent2
[0888] To a 2 L three-neck round bottom flask containing 600 mL of
methanol in an ice/water bath was added Sodium (11.95 g, 0.52 mol,
3.0 eq) piecewise. Compound 51-D Ent2 (44 g, 0.173 mol, 1.0 eq) was
added as a solution in 600 mL of methanol. The reaction mixture was
heated to 55.degree. C. for 5 h. TLC (PE/EA=3:1) showed compound
51-D Ent2 was consumed completely. The solvent was removed in
vacuo. The residue was slurried in 1.0 L of MTBE and 160 mL of
water. 1N HCl was added to pH of .about.4 in ice-bath. The aqueous
layer was separated and extracted with MTBE (300 mL.times.2). The
organic phase was washed with brine (300 mL.times.3) and dried over
anhydrous Na.sub.2SO.sub.4. Filtered and concentrated, the residue
was purified by column chromatography on silica gel
(PE/EA=50:1-30:1-15:1) to supply compound 51-E Ent2 (33 g, 80%
yield) as pale-yellow oil.
[0889] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 4.07-3.98 (m,
2H), 3.97-3.89 (m, 2H), 2.75 (td, J=3.7, 15.0 Hz, 1H), 2.61-2.34
(m, 3H), 1.97-1.89 (m, 1H), 1.88-1.70 (m, 6H), 1.68-1.62 (m, 2H),
1.35 (s, 3H).
Preparation of Compound 51-F Ent2
[0890] Potassium tert-butoxide (18.16 g, 162 mmol, 1.5 eq) was
added to the solution of compound 51-E Ent2 (25.5 g, 108 mmol, 1
eq) in 900 mL of THF by portionwise at 0-5.degree. C., then the
mixture was stirred at 25.degree. C. for 1.5 h. Methyl iodide
(34.88 g, 246 mmol, 2.3 eq) was added to the mixture at 0.degree.
C. by dropwise, and then stirred at 20-25.degree. C. for 18 h. TLC
(PE:EA=4:1) showed compound 51-E Ent2 was remained and the desired
product was observed. 50 mL of saturated NH.sub.4Cl was added to
the mixture and the mixture was extracted with EtOAc (200
mL.times.3). The organic layers were combined and washed with 100
mL of brine, dried over anhydrous Na.sub.2SO.sub.4, filtered and
concentrated. The residue was purified by column chromatography on
silica gel (PE/acetone=200:1) to give compound 51-F Ent2 (12 g, 52%
yield) as yellow oil.
Preparation of Compound 51-G Ent2
[0891] To the suspension of LAH (7.459 g, 38.2 mmol, 1.2 eq) in 150
mL of anhydrous THF was added compound 51-F Ent2 (8.0 g, 32 mmol,
1.0 eq) in 20 mL of anhydrous THF by dropwise. After addition the
mixture was stirred at 25.degree. C. for 1.5 h. TLC (PE:EA=3:1)
showed compound 51-F Ent2 was consumed completely. 1.45 mL of water
was added slowly (caution: gas evolution), then 1.45 mL of 15%
aqueous NaOH and 4.5 mL of water were added in turn. The mixture
was diluted with EA (300 mL) and stirred with anhydrous
Na.sub.2SO.sub.4 (20 g) for 30 min, filtered through a pad of
celite. The filter cake was washed with EA (500 mL.times.2). The
combined filtrate was concentrated under reduced pressure to supply
crude compound 51-G Ent2 (8.0 g) as pale-yellow oil.
[0892] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 5.52 (t, J=3.7
Hz, 1H), 4.05-3.85 (m, 4H), 3.27 (d, J=8.2 Hz, 1H), 2.47-2.36 (m,
1H), 2.34-2.24 (m, 1H), 1.89-1.76 (m, 1H), 1.74-1.62 (m, 3H),
1.60-1.51 (m, 2H), 1.47 (br. s., 1H), 1.29 (s, 3H), 1.17 (s, 3H),
1.07 (s, 3H).
Preparation of Compound 51-H Ent2
[0893] To a solution of compound 51-G Ent2 (8 g, 31.7 mmol, 1.0 eq)
in 80 mL of EtOH was added Pd(OH).sub.2/C (2.0 g) under N.sub.2
atmosphere. The suspension was degassed under vacuum and purged
with H.sub.2 for several times. The mixture was stirred under
H.sub.2 (15 psi) at 20.degree. C. for 24 hours. TLC (PE/EA=3:1,
KMnO.sub.4) showed compound 51-G Ent2 was consumed completely. The
suspension was filtered through a pad of Celite and the pad was
washed with EtOAc (300 mL.times.2). The combined filtrate was
concentrated under reduced pressure to give crude compound 51-H
Ent2 (10 g) as colorless oil. The crude compound 51-H Ent2 was
slurried with MTBE/heptanes (6 mL/10 mL) and cooled to -10.degree.
C. The crystalline material formed was collected and dried under
vacuum to supply compound 51-H Ent2 (4.0 g pure) as white
solid.
[0894] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 3.97-3.94 (m,
2H), 3.90-3.86 (m, 2H), 3.28-3.22 (m, 1H), 1.88-1.67 (m, 1H),
1.64-1.53 (m, 2H), 1.52-1.49 (m, 4H), 1.32-1.28 (m, 2H), 1.21-1.09
(m, 1H), 1.04 (s, 3H), 1.01 (s, 3H), 0.9-0.8 (m, 1H), 0.79 (s,
3H).
Preparation of Compound 51-I Ent2
[0895] To a solution of compound 51-H Ent2 (2.0 g, 7.87 mmol, 1.0
eq) in 50 mL of DCM was added Dess-Marin Periodinane (DMP) (4.0 g,
9.45 mmol, 1.2 eq) in ice-bath. The mixture was stirred at
0-5.degree. C. under N.sub.2 atmosphere for 1.5 h. TLC (PE/EA=3:1)
showed compound 51-H Ent2 was consumed completely. The mixture was
diluted with DCM (50 mL), adjusted pH to 8 by adding saturated
aqueous NaHCO.sub.3. The mixture was filtered through a pad of
celite, concentrated. The residue was stirred in EtOAc (100 mL) and
filtered, concentrated, purified by column chromatography on silica
gel (PE/EA=50:1-40:1-30:1) to supply compound 51-I Ent2 (1.4 g,
72.4% yield) as a colorless solid.
[0896] .sup.1H-NMR: (400 MHz, CDCl.sub.3) .delta.: 4.06-3.81 (m,
4H), 2.69-2.68 (m, 1H), 2.38-2.36 (m, 1H), 1.94-1.84 (m, 1H),
1.74-1.46 (m, 6H), 1.43-1.34 (m, 2H), 1.21 (s, 3H), 1.11 (s, 3H),
1.04 (s, 3H).
Preparation of Compound 51-J Ent2
[0897] To a solution of compound 51-I Ent2 (4.5 g, 17.85 mmol, 1.0
eq) in 28 mL of Ethyl formate (26.39 g, 357 mmol, 20.0 eq) was
added NaOMe (11.23 mL, 60.69 mmol, 3.4 eq, 5.4 M in MeOH) at
0-5.degree. C. The mixture was stirred at 23.degree. C. under
N.sub.2 atmosphere for 30 min, slurried with toluene (30 mL) for 4
h. TLC (PE/EA=6:1) showed compound 51-I Ent2 was consumed
completely. The reaction was quenched by addition of water (150
mL), adjusted pH to 5 by adding AcOH, extracted with EtOAc (50
mL.times.3). The combined organic layer was washed with brine (30
mL.times.2), dried over anhydrous Na.sub.2SO.sub.4, filtered,
concentrated under reduced pressure to supply crude compound 51-J
Ent2 (5.0 g) as pale-yellow solid.
Preparation of Compound 51-K Ent2
[0898] To a solution of compound 51-J Ent2 (5.0 g, 17.8 mmol, 1.0
eq) in 200 mL of EtOH/H.sub.2O (V:V=10:1) was added hydrochloride
hydroxylamine (1.23 g, 17.8 mmol, 1.0 eq) in 20 mL of EtOH/H2O
(V:V=10:1) by dropwise. After addition the mixture was stirred at
50.degree. C. for 18 h. TLC (PE/EA=2:1) showed compound 51-J Ent2
was consumed completely. The mixture was concentrated under reduced
pressure to about 10 mL, diluted with water (100 mL), adjusted pH
to 7 by adding saturated aqueous NaHCO.sub.3. Extracted with EtOAc
(50 mL.times.3). The combined organic layer was washed with brine
(30 mL.times.2), dried over anhydrous Na.sub.2SO.sub.4, filtered,
and concentrated under reduced pressure, the residue was slurried
with MTBE (10 mL), filtered. The filter cake was collected to
supply compound 51-K Ent2 (2.1 g, 51% yield) as white solid and a
second crop of 1.0 g of impure compound 51-K Ent2 as yellow
solid.
[0899] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.03 (s, 1H),
2.53-2.20 (m, 6H), 2.16-2.06 (m, 1H), 2.05-1.97 (m, 1H), 1.93-1.77
(m, 1H), 1.42 (s, 3H), 1.24 (s, 3H), 0.92 (s, 3H).
Preparation of Compounds 51-L Ent2 and 51-M Ent2
[0900] Compound 51-K Ent2 (2.30 g, 9.86 mmol) and Hydroxylamine
hydrochloride (822.21 mg, 11.83 mmol, 492.34 uL) were combined in
30 mL of ethanol and heated to 50.degree. C. After 2 h, the
reaction was concentrated to dryness and deposited on 10 g silica
gel. The reaction was purified by silica gel chromatography using
using a 25-35% gradient of ethyl acetate in heptane to afford two
white crystalline solids. The first eluting isomer was assigned the
structure of compound 51-L Ent2 (900.00 mg, 3.62 mmol, 36.76%
yield) The second eluting isomer was assigned the structure of
compound 51-M Ent2 (1.10 g, 4.43 mmol, 44.93% yield). The
configuration of the oximes so assigned was confirmed by subsequent
Beckmann rearrangement to form compound 51-N Ent2 (below).
Data for 51-L Ent2:
[0901] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. ppm 8.06 (s, 1H)
6.79 (s, 1H) 3.34 (dd, J=13.4, 2.4 Hz, 1H) 2.52-2.59 (m, 1H) 2.41
(d, J=2.0 Hz, 2H) 2.15 (td, J=13.5, 5.1 Hz, 1H) 1.93-2.00 (m, 1H)
1.62-1.80 (m, 3H) 1.57 (s, 1H) 1.38 (s, 3H) 1.23 (s, 3H) 0.92 (s,
3H).
Data for 51-M Ent2:
[0902] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. ppm 8.03-8.06
(m, 1H) 7.26 (s, 1H) 3.54 (ddt, J=14.2, 4.4, 2.1, 2.1 Hz, 1H)
2.33-2.41 (m, 2H) 2.25 (dd, J=13.4, 2.1 Hz, 1H) 2.10 (d, J=13.6 Hz,
1H) 1.93 (ddt, J=13.0, 5.5, 2.7, 2.7 Hz, 1H) 1.54-1.80 (m, 4H)
1.38-1.40 (m, 3H) 1.20-1.24 (m, 3H) 0.90 (s, 3H)
Preparation of Compound 51-N Ent2
[0903] Compound 51-L Ent2 was dissolved in 30 mL acetone and
treated with 9 mL sat. NaHCO3 and 3 mL water. To this mixture was
added Tosyl chloride (682.53 mg, 3.58 mmol) in 10 mL acetone. The
reaction was heated to reflux for 3 h, then cooled to RT and
stirred overnight. LC/MS indicates reaction was incomplete. To the
reaction was added an additional charge of 500 mg of Ts-Cl and the
reaction was again heated at reflux for 3 h. The reaction was
allowed to cool and stir overnight. The reaction was concentrated
to remove acetone and redissolved in ethyl acetate. The layers were
separated and the organic phase was washed with sat. NaHCO.sub.3
and brine, dried over MgSO.sub.4, filtered, and concentrated. The
reaction was purified on a 24 g silica gel column eluted with a
gradient of 35-70% acetone in heptane to afford compound 51-N Ent2
(360.00 mg, 1.45 mmol, 80.99% yield).
Data for 51-N Ent2:
[0904] .sup.1H NMR (400 MHz, DMSO-d.sub.6) .delta. ppm 8.34 (s, 1H)
7.60 (br s, 1H) 3.04-3.21 (m, 2H) 2.74 (d, J=13.1 Hz, 1H) 2.14-2.38
(m, 2H) 1.84-2.00 (m, 2H) 1.74 (dd, J=12.3, 3.0 Hz, 1H) 1.37-1.53
(m, 1H) 1.19-1.27 (m, 5H) 1.13 (s, 3H) 0.84 (s, 3H)
Preparation of Compound 51-O Ent2
[0905] Compound 51-N Ent2 (26 mg, 0.10 mmol) was dissolved in 1 mL
of methanol and treated with 5.4 M of Sodium methoxide in
methanol(0.06 mL, 0.3 mmol). The reaction was monitored for
disappearance of starting material. Upon completion, the reaction
was concentrated to dryness and diluted with ethyl acetate and
water. The pH was adjusted to 3 with 1N HCl and the organic phase
was separated, dried over MgSO.sub.4, filtered, and
concentrated.
[0906] .sup.1H NMR (400 MHz, DMSO-d6) .delta. ppm 9.88 (s, 1H) 7.56
(br s, 1H) 2.95-3.16 (m, 2H) 2.57 (d, J=13.1 Hz, 1H) 2.16 (d,
J=15.3 Hz, 1H) 1.71-1.87 (m, 3H) 1.54 (dd, J=12.2, 2.6 Hz, 1H)
1.27-1.44 (m, 1H) 1.11 (s, 3H) 0.97 (s, 3H) 0.90 (s, 3H).
Preparation of Compound 51-Ent2
[0907] Compound 51-O Ent2 (31 mg, 0.12 mmol) in 3 mL benzene was
treated with Dichlorodicyanoquinone (DDQ) (34 mg, 0.15 mmol) and
heated to reflux for 3 h. The reaction was cooled to RT and
filtered and rinsed with benzene. The filtrate was concentrated and
purified by silica gel column chromatography using 2.5% methanol in
dichloromethane using a 4 g silica gel cartridge.
Data for 51-Ent2:
[0908] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. ppm 1.05 (s,
14H) 1.20 (s, 3H) 1.30 (s, 3H) 1.69-1.98 (m, 3H) 2.42 (dd, J=13.93,
1.63 Hz, 1H) 2.72 (d, J=13.80 Hz, 1H) 3.11-3.42 (m, 2H) 6.12 (br.
s., 1H) 7.29 (s, 1H).
[0909] HPLC Purity: 95%
[0910] LC/MS (M+H)=247.
Preparation of Compound 51-Ent1
[0911] Compound 51-Ent1 was prepared in a manner analogous to that
described above for 51-Ent2 using (S)-1-phenylethan-1-amine in
place of (R)-1-phenylethan-1-amine.
[0912] .sup.1H NMR: (400 MHz, CD.sub.3CN) .delta.: 7.62 (s, 1H),
6.35 (br, 1H), 3.18-3.24 (m, 2H), 2.80 (d, J=14.0 Hz, 1H), 2.35
(dd, J=2.0, 14.0 Hz, 1H), 2.11 (dd, J=2.0, 12.0 Hz, 1H), 1.87-1.92
(m, 1H), 1.69-1.79 (m, 1H), 1.28 (s, 3H), 1.21 (s, 3H), 1.08 (s,
3H)
[0913] HPLC: (Purity: 97.76%)
[0914] SFC: (ee: 99.74%)
[0915] LCMS: (M+H: 247.1)
Example 36. Synthesis of Compound 52-Ent1 and 52-Ent2
##STR00067##
[0916] Preparation of Compound 52-A Ent2
[0917] Compound 51-M Ent2 (511.00 mg, 2.06 mmol) was dissolved in
30 mL of acetone and treated with 9 mL of sat. NaHCO.sub.3 solution
and 3 mL of water. The reaction was treated with p-Tosyl chloride
(785.48 mg, 4.12 mmol) in 4 mL of acetone and heated to 60.degree.
C. for 3 h. The reaction was allowed to cool and stir overnight.
The reaction was concentrated to remove acetone and redissolved in
ethyl acetate. The layers were separated and the organic phase was
washed with sat. NaHCO.sub.3 solution and brine, dried over
MgSO.sub.4, filtered, and concentrated. Purification on a 24 g
silica gel column eluted with 35-60% acetone in heptane afforded
compound 52-A Ent2 (330.00 mg, 1.33 mmol, 64.51% yield) as a white
solid.
Data for 52-A Ent2: .sup.1H NMR (400 MHz, DMSO-d6) .delta. ppm 8.35
(s, 1H) 7.48 (br s, 1H) 3.23 (br d, J=12.8 Hz, 1H) 2.53-2.69 (m,
1H) 2.02-2.30 (m, 3H) 1.85 (br dd, J=14.2, 8.2 Hz, 1H) 1.64 (br d,
J=11.8 Hz, 1H) 1.41 (q, J=12.6 Hz, 1H) 1.26 (s, 3H) 1.10 (s, 3H)
0.76 (s, 3H).
Preparation of Compound 52-B Ent2:
[0918] To a solution of compound 52-A Ent2 in 5 mL methanol was
added 5.4 M of Sodium methoxide in methanol(0.29 mL, 1.6 mmol).
After 3 h, the reaction was concentrated and partitioned between
water and ethyl acetate. 1N HCl was used to adjust pH to 3. The
organic phase was separated and washed with brine, dried over
MgSO.sub.4, filtered and concentrated. LC/MS and NMR show
incomplete conversion to product (.about.90% conversion). The
intermediate was carried on crude to the next step.
[0919] LC/MS (M+H)=249.
Preparation of Compound 52-Ent2
[0920] Compound 52-B Ent2 (120 mg, 0.48 mmol) in 10 mL benzene
(insoluble) was treated with Dichlorodicyanoquinone (DDQ, 0.115 g,
0.507 mmol) and heated to reflux for 4 hours. The reaction was
cooled to RT, filtered, and rinsed with benzene. The crude material
was purified twice using silica gel chromatography using
heptanes/acetone as the eluent to afford a product containing
.about.7% of an impurity. Further purification by SFC afforded 98%
pure 52-Ent2.
[0921] .sup.1H NMR (400 MHz, DMSO-d6) .delta. ppm 8.01 (s, 1H) 7.60
(br s, 1H) 3.40 (br s, 5H) 3.29 (dd, J=14.7, 4.9 Hz, 1H) 2.97 (dd,
J=14.7, 7.7 Hz, 1H) 2.36-2.47 (m, 1H) 2.25 (br dd, J=13.9, 7.4 Hz,
1H) 2.03 (dd, J=11.8, 2.0 Hz, 1H) 1.69-1.83 (m, 1H) 1.41-1.60 (m,
1H) 1.15 (s, 3H) 1.06 (s, 3H) 0.97 (s, 3H).
[0922] HPLC Purity: 98%
[0923] LC/MS (M+H)=247.
Preparation of Compound 52-Ent1
[0924] Compound 52-Ent1 was prepared in a manner analogous to that
described above for 52-Ent2 using (S)-1-phenylethan-1-amine in
place of (R)-1-phenylethan-1-amine.
Example 37. Synthesis of Compound 53-Ent2
##STR00068##
[0925] Preparation of Compound 53-A Ent2:
[0926] Compound 52-A Ent2 (100.00 mg, 402.71 umol) in 4 mL of
anhydrous THF was treated with borane; tetrahydrofuran (1 M, 1.61
mL) overnight. The reaction was quenched by the slow addition of 1
mL of 1N HCL and allowed to stir for 3 h. The reaction was quenched
with sat Na.sub.2CO.sub.3 until pH of 12. Extracted with ethyl
acetate and washed with brine. The reaction was dried over
MgSO.sub.4, filtered, and concentrated. The product was purified by
an acid/base extraction as follows: The crude material as partioned
between 1N HCl and ethyl ether. The ethyl ether layer ("neutral
organic) was discarded. The pH of the HCl layer was adjusted to 12
using 1N NaOH and then extracted with dichloromethane. The
dichloromethane layer was dried over MgSO.sub.4, filtered, and
concentrated to afford 53-A Ent2 (51.00 mg, 217.63 umol, 54.04%
yield).
Data for 53-A Ent2:
[0927] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. ppm 8.03 (s, 1H)
3.23 (dd, J=11.4, 5.6 Hz, 1H) 2.81 (d, J=14.1 Hz, 1H) 2.65 (td,
J=12.2, 4.5 Hz, 1H) 2.44-2.57 (m, 2H) 2.00 (d, J=14.8 Hz, 1H)
1.79-1.93 (m, 2H) 1.70 (br dd, J=13.2, 5.9 Hz, 1H) 1.35-1.55 (m,
3H) 1.33 (s, 3H) 1.23 (s, 3H) 0.83 (d, J=0.8 Hz, 3H).
Preparation of Compound 53-B Ent2:
[0928] Compound 53-A Ent2 (51.00 mg, 217.63 umol) in 3 mL of
anhydrous DCM was treated with triethylamine (66.07 mg, 652.90
umol, 90.51 uL) and Acetyl chloride (25.63 mg, 326.45 umol, 23.30
uL). After 10 min, the reaction was quenched by addition of sat.
NaHCO.sub.3 solution and diluted with ethyl acetate. The layers
were separated layers and the organic phase was washed with brine.
The organic phase was dried over MgSO.sub.4, filtered, and
concentrated to afford crude 53-B Ent2 (60.00 mg, 217.10 umol, 99%
yield).
[0929] LC/MS (M+H)=277.
Preparation of Compound 53-C Ent2
[0930] To a solution of 53-B Ent2 (60.00 mg, 217.10 umol) in 3 mL
of methanol was added sodium methoxide (375.29 mg, 1.74 mmol, 25%
purity) The reaction was allowed to stir for 3 days and formed a
single peak of the desired mass by LC/MS. The reaction was
concentrated and partioned between ethyl acetate and water. The
aqueous phase was adjusted to a pH of 3 using 1 N HCl and the
organic phase was separated and washed with brine, dried over
MgSO.sub.4, filtered, and concentrated to afford crude 53-C Ent2.
LC/MS (M+H)=277.
Preparation of Compound 53-Ent2
[0931] Compound 53-C Ent2 (80.00 mg, 289.47 umol) was dissolved in
6 mL of anhydrous benzene, treated with DDQ (72.28 mg, 318.41
umol), and heated to reflux for 4 h. The reaction was cooled to RT
and filtered. The filtrate was concentrated and deposited on 400 mg
of silica gel and purified twice using 30% acetone in heptane to
afford a white solid, 42 mg of 53-Ent2. The compound is a single
peak by TLC and HPLC analysis but appears to be a .about.4:1
mixture of atropisomers by .sup.1H-NMR.
Data for 53-Ent2:
[0932] .sup.1H-NMR. (d6-DMSO): .delta. ppm 8.12 (s, 0.8H), 8.05 (s,
0.2H), 3.72 (d, J=14.8 Hz, 0.2H), 3.58 (series of m, 1.8H),
3.40-3.15 (series of m, 2H), 2.09 (m, 0.2H), 2.04 (s, 0.6H), 2.02
(s, 2.4H), 1.90-1.65 (series of m, 2H), 1.51 (m, 2H), 1.14 (s,
1.2H), 1.13 (s, 2.4H), 1.10 (s, 2.4H), 0.99 (m, 3H).
[0933] LC/MS (M+H): 275.
[0934] HPLC Purity: 99%
Example 38. Synthesis of Compound 54
##STR00069##
[0935] Preparation of Compound 54-A:
[0936] To a solution of compound 39-C-Ent1 (300 mg, 1.36 mmol, 1.0
eq.), and TEA (274 mg, 2.72 mmol, 2 eq) in THF (10 mL) was added
1-bromo-2-(methylsulfonyl)ethane (507 mg, 2.72 mmol, 2 eq). The
mixture was stirred at 70.degree. C. for 16 hours. The mixture
turned to a black-brown solution. LCMS showed the reaction was
completed. Most of the starting material was almost consumed and
the desired product was detected. The mixture was concentrated in
vacuo to give compound 54-A (400 mg, crude), which was used in the
next step without purification.
[0937] LCMS: (M+H=327.1)
Preparation of Compound 54-B:
[0938] To a solution of compound 54-A (400 mg, 1.22 mmol, 1 eq) in
MeOH (5 mL) was added a solution of NaOMe in MeOH (1.83 mL, 3.66
mmol, 3 eq, 2M). The mixture was stirred at 28.degree. C. for 16
hours. The mixture turned to clear. TLC (PE:EA=5:1) showed the
reaction worked. Most of the starting material was almost consumed
and a new spot was detected. The mixture was diluted with water (25
mL) and extracted with EtOAc (25 mL.times.3). The combined organic
phase was dried over Na2SO4, and filtered. The filtrate was
concentrated in vacuo to give compound 54-B (300 mg, crude), which
was used directly in the next step without purification.
Preparation of Compound 54:
[0939] To a solution of compound 54-B (300 mg, 0.92 mmol, 1 eq) in
toluene (5 mL) was added DDQ (208 mg, 0.92 mmol, 1 eq). The mixture
was stirred at 50.degree. C. for 3 hours. The mixture turned to a
black-brown suspension. TLC (PE:EA=5:1) showed the reaction worked.
Most of the starting material was almost consumed but no obvious
new spot was detected, and no desired product was detected in LCMS.
The mixture was warmed to 110.degree. C. and stirred at 110.degree.
C. for 16 hours. TLC (PE:EA=5:1) showed a new spot was detected.
The mixture was poured into water (20 mL) and extracted with EtOAc
(25 mL.times.3). The combined organic phase was washed with aq.
NaHCO.sub.3 (50 mL.times.3). The organic phase was dried over
Na.sub.2SO.sub.4 and filtered. The filtrate was concentrated in
vacuo to give the residue, which was purified by pre-TLC
(PE:EA=3:1) to give 54 (160 mg, crude) which was further separated
by SFC (C2 250 mm*30 mm, 10 um, condition: 0.1% NH.sub.3H.sub.2O
MEOH) to give 54 (19209-72-1, 19.4 mg, Rt=6.20 min) as a white
solid.
Spectra for Compound 54
[0940] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta. 7.35 (s, 1H),
3.16-3.05 (m, 3H), 2.98 (s, 3H), 2.91-2.86 (m, 2H), 2.67-2.54 (m,
1H), 2.15-1.98 (m, 2H), 1.74-1.63 (m, 3H), 1.32 (s, 3H), 1.19 (s,
3H), 1.08 (s, 3H)
[0941] SFC: (ee: 98.60%)
[0942] HPLC: (Purity: 96.55%)
[0943] LCMS: (M+H 325.1)
Example 39: Synthesis of Compound 55
##STR00070##
[0945] To a solution of compound 47-C-Ent1 (80 mg, 0.37 mmol, 1.0
eq.) and 1-bromo-2-methoxyethane (61 mg, 0.44 mmol, 1.2 eq.) in DMF
(2 mL) was added TEA (112 mg, 1.11 mmol, 3.0 eq) dropwise. The
mixture was stirred at 110.degree. C. for 2 h. TLC (PE/EtOAc=1/1,
Rf=0.5) showed compound 47-C-Ent1 was consumed completely. The
mixture was purified by prep-TLC (PE/EtOAc=1/1) to give a racemic
compound, which was separated by SFC (Condition: 0.1%
NH.sub.3H.sub.2O ETOH; Column: OJ (250 mm*30 mm, 5 um); Detection
wavelength: 220 nm) to obtain 55 (28.8 mg) as a yellow oil.
[0946] Spectra of 55:
[0947] HPLC: (Purity: 97.91%)
[0948] MS: (M+H: 277.2)
[0949] SFC: (ee: 99.12%)
[0950] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.37 (s, 1H),
3.50-3.46 (m, 2H), 3.33 (s, 3H), 3.06 (d, J=6.8 Hz, 1H), 2.69 (d,
J=10.4 Hz, 1H), 2.60-2.59 (m, 1H), 2.53-2.51 (m, 1H), 2.05-1.96 (m,
2H), 1.80-1.69 (m, 1H), 1.64-1.61 (m, 1H), 1.33 (s, 3H), 1.17 (s,
3H), 1.08 (s, 3H).
Example 40: Synthesis of Compounds 56-Ent1 and 56-Ent2
##STR00071##
[0952] Compounds 56-Ent1 and 56-Ent2 were made in a manner
analagous to compounds 12-Ent1 and 12-Ent2 (example 1), starting
from 1-benzyl-3-ethylpiperidin-4-one. The racemic mixture was
separated by SFC (Mobile phase: 0.1% NH.sub.3.H.sub.2O/MeOH;
Column: Chiralpak AD (250 mm*30 mm, 5 um); FlowRate: 60 mL/min) to
give 56-Ent1 as the first eluting enantiomer (34.1 mg, Rt=3.415
min) as a light yellow solid and 56-Ent2 as the second eluting
enantiomer. (28.3 mg, Rt=4.149 min) as a light yellow solid. The
absolute stereochemistry was not determined.
Data for 56-Ent1:
[0953] HPLC: (Purity: 97.69%)
[0954] LCMS: (M+H: 275.2)
[0955] SFC: (Rt=3.024, ee: 99.05%)
[0956] .sup.1H NMR: (400 MHz, DMSO) .delta.=8.22-8.05 (m, 1H),
4.79-4.52 (m, 1H), 4.08-3.88 (m, 1H), 3.01-2.82 (m, 1H), 2.43-2.26
(m, 1H), 2.07-2.01 (m, 4H), 1.76-1.49 (m, 3H), 1.40-1.27 (m, 1H),
1.13 (s, 3H), 1.05 (s, 3H), 0.91-0.82 (m, 3H)
[0957] .sup.1H NMR (T=80.degree. C.): (400 MHz, DMSO) .delta.=8.04
(s, 1H), 4.75 (s, 1H), 3.95 (s, 1H), 2.67-2.66 (m, 1H), 2.33-2.32
(m, 1H), 2.04-2.01 (m, 4H), 1.79-1.77 (m, 2H), 1.76-1.74 (m, 1H),
1.15 (s, 1H), 1.08 (s, 3H), 0.91-0.87 (m, 3H)
Spectra for 56-Ent2:
[0958] HPLC: (Purity: 97.24%)
[0959] LCMS: (M+H: 275.1)
[0960] SFC: (Rt=4.486, ee: 95.84%)
[0961] .sup.1H NMR: (400 MHz, DMSO) .delta.=8.21-8.04 (m, 1H),
4.80-4.51 (m, 1H), 4.08-3.87 (m, 1H), 3.01-2.83 (m, 1H), 2.36-2.27
(m, 1H), 2.10-2.00 (m, 4H), 1.86-1.58 (m, 2H), 1.53 (br d, J=10.2
Hz, 1H), 1.34 (br dd, J=6.8, 13.9 Hz, 1H), 1.13 (s, 3H), 1.05 (s,
3H), 0.92-0.79 (m, 3H)
[0962] .sup.1H NMR (T=80.degree. C.): (400 MHz, DMSO) .delta.=8.06
(br s, 1H), 5.10-4.53 (m, 1H), 3.99 (br s, 1H), 2.68 (s, 1H), 2.34
(br s, 1H), 2.07-2.02 (m, 4H), 1.89-1.62 (m, 2H), 1.57 (br d,
J=11.5 Hz, 1H), 1.40 (br d, J=11.5 Hz, 1H), 1.17 (s, 3H), 1.10 (s,
3H), 0.94-0.88 (t, J=7.5 Hz, 3H)
Synthesis of 57-Ent1 and 57-Ent2:
##STR00072##
[0964] Racemic compound 57-J was obtained in a manner analogous to
that described for intermediate 12-J (example 1), starting from
1-benzyl-3-ethylpiperidin-4-one. Compounds 57-Ent1 and 57-Ent2 were
synthesized in a manner analogous to that described for Compounds
30-Ent1 and 30Ent2 (example 19), using 57-J instead of 12-J.
Compounds 57-Ent1 and 57-Ent2 were separated by chiral SFC (Mobile
phase: Neu-MeOH; Column: Chiralpak OD (250 mm*30 mm, 5 um);
FlowRate: 60 mL/min) to give the first eluting enantiomer called
57-Ent1 (22.0 mg, Rt=3.091 min) as a light yellow solid and the
second eluting enantiomer called 57-Ent2 (23.2 mg, Rt=4.998 min) as
a light yellow solid. The absolute stereochemistry was not
determined.
Spectra for 57-Ent1:
[0965] HPLC: (Purity: 95.28%)
[0966] LCMS: (M+H: 311.2)
[0967] SFC: (Rt=3.091, ee: 100%)
[0968] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=8.33 (d, J=4.7
Hz, 2H), 7.63 (s, 1H), 6.54 (t, J=4.7 Hz, 1H), 5.19 (dd, J=1.8,
13.1 Hz, 1H), 5.07-4.98 (m, 1H), 2.79 (dt, J=3.5, 12.7 Hz, 1H),
2.57 (d, J=11.7 Hz, 1H), 2.04-1.95 (m, 1H), 2.04-1.94 (m, 1H),
1.87-1.76 (m, 1H), 1.67 (br d, J=13.3 Hz, 1H), 1.58 (s, 6H),
1.51-1.42 (m, 1H), 1.26 (s, 3H), 1.19 (s, 3H), 0.97 (t, J=7.6 Hz,
3H)
Spectra for 57-Ent2:
[0969] HPLC: (Purity: 96.60%)
[0970] LCMS: (M+H: 311.2)
[0971] SFC: (Rt=4.998, ee: 100%)
[0972] .sup.1H NMR: (400 MHz, CDCl3) .delta.=8.33 (d, J=4.7 Hz,
2H), 7.64 (s, 1H), 6.54 (t, J=4.7 Hz, 1H), 5.20 (dd, J=2.0, 12.9
Hz, 1H), 5.06-4.98 (m, 1H), 2.79 (dt, J=3.3, 12.8 Hz, 1H), 2.57 (d,
J=12.9 Hz, 1H), 2.02-1.94 (m, 2H), 1.81 (dq, J=4.3, 12.7 Hz, 1H),
1.67 (br d, J=13.3 Hz, 1H), 1.56 (s, 6H), 1.51-1.43 (m, 1H), 1.26
(s, 3H), 1.19 (s, 3H), 0.97 (t, J=7.4 Hz, 3H)
Example 41: Synthesis of Compounds 58-Ent1 and 58-Ent2
##STR00073##
[0974] Compounds 58-Ent1 and 58-Ent2 were synthesized in a manner
analogous to that described for Compounds 31-Ent1 and 31Ent2
(example 20), using 57-J instead of 12-J. Chiral separation was
performed by SFC (Mobile phase: Neu-MeOH; Column: Chiralpak AD (250
mm*30 mm, 5 um); FlowRate: 60 mL/min) to give the first eluting
enantiomer called 58-Ent1 (23.9 mg, Rt=1.966 min) as a light yellow
solid and the second eluting enantiomer called 58-Ent2 (38.4 mg,
Rt=2.629 min) as a light yellow solid. The absolute stereochemistry
was not determined.
Spectra for 58-Ent1:
[0975] HPLC: (Purity: 99.74%)
[0976] LCMS: (M+H: 297.1)
[0977] SFC: (Rt=1.966, ee: 100%)
[0978] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.49 (s, 1H),
6.06-5.68 (m, 1H), 3.18-3.08 (m, 2H), 2.85-2.72 (m, 2H), 2.45-2.35
(m, 1H), 2.29 (dt, J=2.8, 11.5 Hz, 1H), 2.01 (br d, J=11.0 Hz, 1H),
1.86 (dq, J=4.3, 12.6 Hz, 1H), 1.56 (br dd, J=2.6, 13.0 Hz, 1H),
1.48-1.37 (m, 1H), 1.26 (br s, 1H), 1.18 (d, J=12.3 Hz, 6H), 0.91
(t, J=7.5 Hz, 3H)
Spectra for 58-Ent2:
[0979] HPLC: (Purity: 99.74%)
[0980] LCMS: (M+H: 311.2)
[0981] SFC: (Rt=2.629, ee: 99.90%)
[0982] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.49 (s, 1H),
6.05-5.69 (m, 1H), 3.18-3.05 (m, 2H), 2.85-2.70 (m, 2H), 2.45-2.34
(m, 1H), 2.29 (dt, J=3.1, 11.6 Hz, 1H), 2.01 (d, J=11.0 Hz, 1H),
1.73-1.66 (m, 1H), 1.56 (br dd, J=2.4, 13.0 Hz, 1H), 1.42 (qd,
J=6.9, 13.6 Hz, 1H), 1.26 (br s, 1H), 1.18 (d, J=12.6 Hz, 6H), 0.91
(t, J=7.5 Hz, 3H)
Example 42: Synthesis of Compound 59
##STR00074##
[0984] To a solution of compound 39-C-Ent1 (200 mg, 0.91 mmol, 1.0
eq) in 5 mL of DMF was added TEA (276 mg, 2.73 mmol, 3.0 eq) and
2-chloropyrazine (312 mg, 2.73 mmol, 3.0 eq). After addition, the
mixture was stirred at 120.degree. C. for 18 h. TLC (DCM:MeOH=10:1)
indicated completion. The mixture was diluted with water (20 mL),
extracted with EtOAc (15 mL.times.3). The combined organic layer
was dried over anhydrous Na.sub.2SO.sub.4, filtered, concentrated
and purified by prep-TLC (PE:EA=1:2) to supply compound 59-A (200
mg, mixture of cis- and trans-isomer) as yellow gum.
[0985] To a solution of compound 59-A (200 mg, 0.67 mmol, 1.0 eq)
in 6 mL of anhydrous methanol was added NaOMe (1.34 mL, 2.68 mmol,
4.0 eq, 2 M in methanol). The mixture was stirred at 26.degree.
C..about.30.degree. C. for 18 h. TLC (PE/EA=1:2) showed no new spot
was observed. NaOMe (1.34 mL, 2.68 mmol, 4.0 eq, 2 M in methanol)
was added and the mixture was stirred at 26.degree.
C..about.30.degree. C. for 18 h. TLC (PE/EA=1:2) showed only one
spot was observed. The mixture was concentrated; the residue was
diluted with water (15 mL), adjusted pH to 7 by adding 1N HCl aq.
and extracted with EtOAc (10 mL.times.3). The combined organic
layer was dried over anhydrous Na.sub.2SO.sub.4, filtered,
concentrated under reduced pressure to supply crude compound 59-B
(130 mg) as pale-yellow gum.
[0986] To a solution of compound 59-B (100 mg, 0.34 mmol, 1.0 eq)
in 4 mL/2 mL of toluene/MeCN was added DDQ (91 mg, 0.4 mmol, 1.2
eq). The mixture was stirred at 100.degree. C. for 1 h. TLC
(PE:EA=1:1) showed only one spot was observed. The mixture was
concentrated under reduced pressure and purified by prep-TLC
(PE:EA=2:3) for twice to supply compound 59 (25 mg), which was
re-purified by SFC (column: AD 250 mm*30 mm, 5 um, condition: 0.1%
NH.sub.3.H.sub.2O-EtOH) to give 59 (Rt=6.30 min, 3.5 mg, 3.5%
yield) as pale-yellow gum.
[0987] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.11 (s, 1H),
8.08-8.02 (m, 1H), 7.89 (d, J=2.4 Hz, 1H), 7.40 (d, J=1.5 Hz, 1H),
4.19-4.11 (m, 1H), 3.93-3.85 (m, 1H), 3.28 (m, 1H), 3.21-3.09 (m,
1H), 2.05-1.96 (m, 1H), 1.94-1.86 (m, 1H), 1.50-1.45 (m, 1H), 1.47
(s, 3H), 1.40 (s, 3H), 1.24 (s, 3H).
[0988] SFC: (Rt: 6.300 min, ee: 99.687%)
[0989] HPLC: (Purity: 100%)
[0990] LCMS: (M+H: 297.1)
Example 43: Preparation of Compounds 60-Ent1 and 60-Ent2
##STR00075## ##STR00076##
[0991] Preparation of Compound 60-A
[0992] To a solution of compound PMBNH.sub.2 (50 g, 36.5 mmol, 1.0
eq) in EtOH (500 mL) was added compound methyl acrylate (36.5 g,
36.5 mmol, 1.0 eq) drop-wise. The reaction mixture was stirred at
15.degree. C. for 16 hours. TLC (PE/EA=2:1) showed PMBNH.sub.2 was
consumed completely. The solvent was removed to give the crude
compound 60-A (75 g, crude) as a yellow oil, which was used for the
next step without further purification.
[0993] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.23 (d, J=8.6
Hz, 2H), 6.84 (d, J=8.6 Hz, 2H), 4.14 (q, J=7.0 Hz, 2H), 3.80 (s,
3H), 3.74-3.65 (m, 3H), 2.88 (t, J=6.6 Hz, 2H), 2.52 (t, J=6.5 Hz,
2H), 1.30-1.20 (m, 4H).
Preparation of Compound 60-B
[0994] To a solution of compound 60-A (20 g, 84 mmol, 1.0 eq) in
acetone (200 mL) and H.sub.2O (20 mL) was added K.sub.2CO.sub.3 (12
g, 84 mmol, 1.0 eq) and followed by BnCOCl (16 g, 84 mmol, 1.0 eq).
The suspension solution was stirred at 28.degree. C. for 3 hours.
TLC (PE/EA=3:1) showed that the compound 60-A was consumed
completely. The reaction mixture was diluted with 1 N HCl (200 mL)
and extracted with EtOAc (200 mL.times.3). The combined organic
layer was washed with brine (200 m L.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give compound 60-B
(30 g, yield equivalent) as a yellow oil.
[0995] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.37-7.30 (m,
3H), 7.28-7.22 (m, 2H), 7.21-7.12 (m, 1H), 7.03 (d, J=8.8 Hz, 1H),
6.91-6.82 (m, 2H), 4.61-4.48 (m, 2H), 4.16-4.07 (m, 2H), 3.84-3.80
(m, 3H), 3.76-3.73 (m, 1H), 3.66-3.54 (m, 2H), 2.63 (t, J=7.0 Hz,
1H), 1.29-1.19 (m, 4H).
Preparation of Compound 60-C
[0996] To a solution of compound 60-B (30 g, 85 mmol, 1.0 eq) in
THF (300 mL) was added NaH (3.4 g, 10.2 mmol, 1.2 eq) in portions
at 25.degree. C. The suspension was stirred at 70.degree. C. for 16
h. TLC (PE/EA=3:1) showed the compound 60-B was consumed
completely. The reaction mixture was diluted with H.sub.2O (300
mL), adjusted pH=4 by 1N HCl and extracted with EtOAc (400
mL.times.2). The combined organic layer was washed with brine,
dried over Na.sub.2SO.sub.4, filtered and concentrated to give
compound 60-C (30 g, crude) as a yellow solid, which was used for
the next step without further purification.
[0997] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.33-7.21 (m,
4H), 7.17-7.02 (m, 3H), 6.85-6.75 (m, 2H), 4.63 (d, J=2.3 Hz, 1H),
4.50-4.40 (m, 2H), 3.74 (d, J=5.5 Hz, 3H), 3.57-3.43 (m, 2H),
2.58-2.48 (m, 2H)
Preparation of Compound 60-D
[0998] To a solution of compound 60-C (30 g, 97.1 mmol, 1.0 eq) and
TEA (11.8 g, 116.5 mmol, 1.2 eq) in MeCN (300 mL) was added EVK
(9.7 g, 116.5 mmol, 1.2 eq). The reaction mixture was stirred at
75.degree. C. for 16 hours. TLC (PE/EA=3:1) showed the compound
60-C was consumed completely. The solvent was removed to give the
crude compound 60-D (32 g, crude) as a yellow oil, which was used
for next step without further purification.
[0999] LCMS: (M+H: 394.3)
Preparation of Compound 60-E
[1000] To a 1 L three-neck round bottom flask containing 460 mL of
methanol in an ice/water bath was added Sodium (1.9 g, 81.4 mmol,
1.0 eq) piecewise. Compound 60-D (32 g, 81.4 mmol, 1.0 eq) was
added as a solution in 50 mL of methanol. The reaction mixture was
stirred at 50.degree. C. for 2 h. TLC (PE/EtOAc=3:1) showed the
compound 60-D was consumed completely. The reaction mixture was
diluted with H.sub.2O (500 mL), adjusted pH=4 by 1N HCl and
extracted with EtOAc (300 mL.times.2). The combined organic layer
was washed with brine, dried over Na.sub.2SO.sub.4, filtered and
concentrated to obtained the residue, which was purified by column
chromatography on silica gel (PE/EtOAc=10:1) to give compound 60-E
(9.6 g, 32.0%) as a yellow solid.
[1001] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.35-7.25 (m,
5H), 7.10-7.02 (m, 2H), 6.83-6.74 (m, 2H), 4.58-4.48 (m, 2H), 3.76
(s, 3H), 3.04-2.95 (m, 1H), 2.82 (ddd, J=6.0, 9.5, 13.1 Hz, 1H),
2.68-2.58 (m, 3H), 2.57-2.41 (m, 1H), 2.50-2.41 (m, 1H), 2.34 (td,
J=3.5, 17.1 Hz, 1H), 2.13-2.05 (m, 1H), 2.07 (dd, J=2.2, 4.7 Hz,
1H), 1.86 (s, 3H)
Preparation of Compound 60-F
[1002] To a solution of compound 60-E (4.9 g, 13.1 mmol, 1.0 eq) in
MeCN/H.sub.2O (100 mL, V=2:1) was added CAN (21.44 g, 39.2 mmol,
3.0 eq) at 0.degree. C. in one portion. The mixture was stirred at
30-35.degree. C. for 3 hours. TLC (PE:EA=1:2) showed the reaction
was completed. Most of the starting material was consumed and a new
spot was detected. The mixture was extracted with EtOAc (50
mL.times.2). The combined organic phase was dried over
Na.sub.2SO.sub.4, filtered and concentrated to give crude, which
was purified by column chromatography on silica gel (PE/EA=2:1-EA,
100%) to give compound 60-F (2.4 g, 72%) as a yellow solid.
[1003] .sup.1H NMR (400 MHz, METHANOL-d4) .delta.: 7.39-7.29 (m,
5H), 3.19-3.10 (m, 1H), 2.87-2.71 (m, 3H), 2.47-2.33 (m, 2H),
2.30-2.20 (m, 1H), 2.06-2.00 (m, 1H), 1.89 (s, 3H).
Preparation of Compound 60-G
[1004] A mixture of compound 60-F (2 g, 3.92 mol, 1.0 eq.) and
Pd(OH).sub.2/C (200 mg) in Py/THF (40 mL) was stirred under 50 psi
of H.sub.2 at 32.degree. C. for 30 hours. LCMS indicated
completion. The suspension was filtered through a pad of celite and
washed with EA (30 mL.times.2), the filtrate was concentrated under
reduce pressure to give a crude product, which was purified
prep-HPLC (base) to give desired product 60-G (1.52 g, yield: 47%)
as off-yellow solid.
[1005] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 7.62 (br d,
J=7.5 Hz, 2H), 7.40-7.28 (m, 3H), 3.27-3.22 (m, 1H), 3.11 (td,
J=6.5, 13.0 Hz, 1H), 2.77-2.57 (m, 2H), 2.36-2.14 (m, 4H), 1.11 (d,
J=6.6 Hz, 3H).
Preparation of Compound 60-H
[1006] To a solution of compound 60-G (300 mg, 1.17 mmol, 1 eq) in
ethyl formate (1.74 g, 23.5 mmol, 20 eq) was added a solution of
NaOMe/MeOH (0.74 mL, 3.99 mmol, 3.4 eq, 5.4M) at 0.degree. C.
dropwise. The mixture was stirred at 32-35.degree. C. for 5 hours.
LCMS (19207-134-1A) showed the reaction was completed. Most of the
starting material was almost consumed. The mixture was poured into
water (20 mL) and acidified to male PH=6-8. The mixture was
extracted with EtOAc (25 mL.times.3). The combined organic phase
was dried over Na.sub.2SO.sub.4, and filtered. The filtrate was
concentrated in vacuo to give 320 mg of crude formylation product,
which was used directly in the next step without purification.
[1007] To a solution of crude formylation product (320 mg, 1.12
mmol, 1 eq) in EtOH (20 mL) and water (2 mL) was added
hydrochloride hydroxylamine (93 mg, 1.34 mmol, 1.2 eq). The mixture
was stirred at reflux for 18 hours. The mixture turned to clear.
LCMS showed the reaction was completed. Most of the starting
material was almost consumed. The mixture was concentrated in vacuo
to give the residue, which was treated with water (20 mL) and
extracted with EtOAc (25 mL.times.3). The combined organic phase
was dried over Na.sub.2SO.sub.4, and filtered. The filtrate was
concentrated in vacuo to give the residue, which was purified by
prep-HPLC (base) to give compound 60-H (150 mg, yield: 47%) as a
white solid.
[1008] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.35 (s,
1H), 7.27-7.14 (m, 5H), 3.61-3.54 (m, 1H), 3.45 (dt, J=6.0, 12.3
Hz, 1H), 3.34 (br s, 1H), 2.96 (dd, J=2.0, 16.8 Hz, 1H), 2.20-2.07
(m, 2H), 2.04-1.94 (m, 1H), 1.88-1.74 (m, 1H), 1.31 (br d, J=6.4
Hz, 3H).
Preparation of Compound 60-I
[1009] To a solution of compound 60-H (120 mg, 0.42 mmol, 1 eq) in
MeOH (2 mL) was added a solution of NaOMe/MeOH (0.85 mL, 1.7 mmol,
4.0 eq, 2M). The mixture was stirred at 30.degree. C. for 18 hours.
TLC (PE:EA=1:1) showed most of the starting material was almost
consumed and a new spot was detected. The mixture was poured into
water (20 mL) and acidified with (2M) to male PH=6-8. The mixture
was extracted with EtOAc (25 mL.times.3). The combined organic
phase was dried over Na.sub.2SO.sub.4 and filtered. The filtrate
was concentrated in vacuo to give compound 60-I (110 mg, crude) as
colorless oil, which was used directly in the next step without
purification.
Preparation of Compounds 60-Ent1 and 60-Ent2
[1010] To a solution of compound 60-I (110 mg, 0.39 mmol, 1 eq) in
toluene (3 mL) was added DDQ (88.5 mg, 0.39 mmol, 1.0 eq). The
mixture was stirred at 85.degree. C. for 1 hour. The mixture turned
to a suspension. TLC (PE:EA=1:3) showed most of the starting
material was almost consumed and a new spot was detected. The
mixture was concentrated in vacuo to give the residue, which was
purified by column chromatography on silica gel (PE/EA=1:1) to give
product (70 mg, yield: 63%) as a racemic mixture. The racemic
mixture was further separated by SFC (column: OJ (250 mm*30 mm, 5
um) condition: 0.1% NH.sub.3.H.sub.2O-ETOH) to give 60-Ent1
(19207-143-1, 22.2 mg, yield: 31.2% Rt=4.078 min) and 60-Ent2
(19207-143-2, 17.6 mg, yield: 31.2%, Rt=6.090 min). Both are pale
white solids.
Spectra for 60-Ent1
[1011] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.26 (s,
1H), 7.49-7.28 (m, 5H), 3.61-3.43 (m, 2H), 2.67-2.52 (m, 1H), 2.40
(qd, J=6.6, 13.0 Hz, 1H), 1.87 (br dd, J=6.7, 14.1 Hz, 1H),
1.67-1.51 (m, 1H), 1.11 (d, J=6.7 Hz, 3H).
[1012] SFC: (Rt: 4.001 min, ee: 96.7%)
[1013] HPLC: (Purity: 98.43%)
[1014] LCMS: (M+H=281.1)
Spectra for 60-Ent2
[1015] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.26 (s,
1H), 7.49-7.28 (m, 5H), 3.61-3.43 (m, 2H), 2.67-2.52 (m, 1H), 2.40
(qd, J=6.6, 13.0 Hz, 1H), 1.87 (br dd, J=6.7, 14.1 Hz, 1H),
1.67-1.51 (m, 1H), 1.11 (d, J=6.7 Hz, 3H).
[1016] SFC: (Rt: 6.042 min, ee: 96.9%)
[1017] HPLC: (Purity: 97.21%)
[1018] LCMS: (M+H=281.1)
Example 44: Preparation of Compounds 61-Ent1 and 61-Ent2
##STR00077## ##STR00078##
[1019] Preparation of Compound 61-A:
[1020] MeI (756 mg, 5.33 mmol, 2.0 eq) was added to a solution of
Potassium tert-Butoxide (598 mg, 5.33 mmol, 2.0 eq), compound 60-E
(1.0 g, 2.67 mmol, 1.0 eq) in THF 20 mL by portionwise at
0-5.degree. C., then the mixture was stirred at 25.degree. C. for 4
hours. TLC (PE:EtOAc=3:1) showed compound 60-E was consumed
completely. The mixture was poured into water 40 mL, extracted with
EtOAc (40 mL). The organic layer was washed with brine 40 mL, dried
over anhydrous Na.sub.2SO.sub.4, filtered and concentrated. The
residue was purified by column chromatography on silica gel
(PE:EtOAc from 100:1 to 3:1) to give compound 61-A (380 mg, 36.9%
yield) as colorless oil.
[1021] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.40-7.38 (m,
2H), 7.33-7.27 (m, 3H), 6.82 (d, J=8.4 Hz, 2H), 6.70 (d, J=8.8 Hz,
2H), 6.14 (t, J=2.8 Hz, 1H), 4.61 (d, J=14.8 Hz, 1H), 4.32 (d,
J=14.8 Hz, 1H), 3.76 (s, 3H), 3.62 (d, J=4.0 Hz, 2H), 3.08-3.03 (m,
1H), 2.76-2.71 (m, 1H), 2.43-2.38 (m, 2H), 1.36 (s, 3H), 1.22 (s,
2H).
Preparation of Compound 61-B
[1022] NaBH.sub.4 (349 mg, 9.26 mmol, 2.0 eq) was added to a
solution of compound 61-A (1.8 g, 4.63 mol, 1.0 eq) in MeOH 20 mL
at 0.degree. C., stirred at 25.degree. C. for 14 hours. TLC
(PE:EtOAc=1:1) showed compound 61-A was consumed completely. The
reaction was quenched with water 10 mL, extracted with EtOAc (100
mL). The organic layer was washed with brine 50 mL, dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated to get
compound 61-B (1.9 g, 96.5% yield) as a yellow solid.
[1023] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39-7.37 (m,
2H), 7.32-7.24 (m, 3H), 6.98 (d, J=8.4 Hz, 2H), 6.77 (d, J=8.8 Hz,
2H), 5.95-5.94 (m, 1H), 4.62 (d, J=14.4 Hz, 1H), 4.30 (d, J=14.4
Hz, 1H), 3.98-3.79 (m, 3H), 3.77 (s, 3H), 3.79-3.31 (m, 2H),
1.92-1.75 (m, 2H), 1.31-1.29 (m, 1H), 1.20 (s, 3H), 0.42 (s,
3H).
Preparation of Compound 61-C
[1024] LAH (348 mg, 9.20 mmol, 2.0 eq) was added to solution of
compound 61-B (1.8 g, 4.60 mmol, 1.0 eq) in anhydrous THF 20 mL at
0.degree. C. The mixture was stirred at 25.degree. C. for 14 hours.
TLC (PE:EtOAc=1:2) showed compound 61-B was consumed completely.
The reaction was quenched with 0.4 mL of water, followed by 0.4 mL
of 15% aqueous NaOH and 1.2 mL of water, filtered, and the filtrate
was concentrated under reduced pressure to supply compound 61-C
(1.93 g, 100% yield) as colorless oil, which was used to next step
directly.
Preparation of Compound 61-D
[1025] PtO.sub.2 (50 mg) was added to a solution of compound 61-C
(650 mg, 1.72 mmol, 1.0 eq) in MeOH 20 mL under Ar, stirred under
H.sub.2 (15 psi) at 25.degree. C. for 24 hours. LCMS (19214-126-1A)
showed compound 61-C was consumed completely. The mixture was
filtered, and the filtrate was concentrated to give compound 61-D
(300 mg, 45.9% yield) as colorless oil.
[1026] LCMS: (M+H: 380.3).
Preparation of Compound 61-E
[1027] Pd/C (50 mg) was added to a solution of compound 61-D (300
mg, 0.79 mmol, 1.0 eq), Boc.sub.2O (207 mg, 0.95 mmol, 1.2 eq) in
MeOH 10 mL under Ar, stirred under H.sub.2 (15 psi) at 25.degree.
C. for 14 hours. LCMS (19214-128-1B) showed compound 5 was consumed
completely. The mixture was filtered, and the filtrate was
concentrated to give compound 61-E (200 mg, 100% yield) as yellow
oil, which was used to next step directly.
[1028] LCMS: (M-56: 304.1).
Preparation of Compound 61-F
[1029] DMP (283 mg, 0.669 mmol, 1.2 eq) was added to a solution of
compound 61-E (200 mg, 0.557 mmol, 1.0 eq) in CH.sub.2Cl.sub.2 8 mL
at 0.degree. C., stirred at 25.degree. C. for 14 hours. LCMS
(19214-148-1A) showed compound 61-E was consumed completely. The
mixture was diluted water 50 mL, extracted with EtOAc (30
mL.times.3), washed with brine 50 mL, and dried over anhydrous
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated to
get compound 61-F (180 mg, 90.5% yield) as pale-yellow oil.
[1030] LCMS: (M-56: 302.2).
Preparation of Compound 61-G
[1031] NaOMe (0.3 mL, 1.51 mmol, 5.4 M in MeOH) was added to a
solution of compound 61-F (180 mg, 0.504 mmol, 1.0 eq) in HCOOEt 4
mL, stirred at 25.degree. C. for 2 hours. LCMS (19214-150-1A)
showed compound 61-F was consumed completely. The mixture was
diluted with water 10 mL, adjusted to pH=5 with HOAc, extracted
with EtOAc (20 mL.times.2), washed with brine 20 mL, and dried over
anhydrous Na.sub.2SO.sub.4, filtered, and the filtrate was
concentrated to get compound 61-G (150 mg, 77.3% yield) as yellow
oil.
[1032] LCMS: (M-56: 330.1).
Preparation of Compound 61-H
[1033] Hydrochloride hydroxylamine (37.7 mg, 0.584 mmol, 1.0 eq)
was added to a solution of compound 61-G (150 mg, 0.39 mmol, 1.0
eq) in 5 mL of EtOH/H.sub.2O (V:V=10:1), the reaction mixture was
stirred at 50.degree. C. for 14 hours. LCMS (19214-151-1A) showed
compound 61-G was consumed completely. The mixture was diluted with
water (20 mL), adjusted pH to 7 by adding saturated aqueous
NaHCO.sub.3, extracted with EtOAc (20 mL). The organic layer was
washed with brine (15 mL), dried over anhydrous Na.sub.2SO.sub.4,
filtered, and concentrated to get compound 61-H (130 mg, 87.8%
yield) as yellow oil.
[1034] LCMS: (M-56: 327.1).
Preparation of Compound 61-I
[1035] NaOMe/MeOH (0.3 mL, 5.0 eq, 1.70 mmol, 5.4M) was added to a
solution of compound 61-H (130 mg, 0.34 mmol, 1.0 eq) in MeOH (5
mL), the reaction mixture was stirred at 50.degree. C. for 14
hours. LCMS (19334-1-1A) showed compound 61-H was consumed
completely. The mixture was adjusted to pH=7 with 1N HCl and
extracted with EtOAc (20 mL). The organic layer was washed with
brine (20 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered, and
concentrated to get compound 61-I (110 mg, 84.6% yield) as a white
solid.
[1036] LCMS: (M-Boc: 282.9).
Preparation of Compound 61-J
[1037] A mixture of compound 61-I (160 mg, 0.42 mmol, 1.0 eq) in
MeOH 5 mL was added DDQ (142 mg, 0.63 mmol, 1.5 eq), and the
mixture was stirred at 110.degree. C. for 14 hours. TLC
(PE/EtOAc=3/1, Rf=0.6) showed compound 61-I was consumed
completely. The mixture was concentrated, and the residue was
purified by pre-TLC PE/EtOAc=3:1 to get compound 61-J (90 mg, 56.6%
yield) as a yellow solid.
[1038] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.57 (s, 1H),
7.31-7.29 (m, 5H), 4.64-4.35 (m, 2H), 3.01-2.90 (m, 2H), 2.16-2.12
(m, 1H), 2.03-1.99 (m, 1H), 1.62-1.60 (m, 1H), 1.38-1.36 (m, 9H),
1.19 (s, 3H), 0.50 (s, 3H).
Preparation of Compound 61-K
[1039] HCl/EtOAc (1 mL, 4M) was added to a solution of compound
61-J (90 mg, 0.24 mmol, 1.0 eq) in EtOAc (1 mL), and the mixture
was stirred at 25.degree. C. for 1 hour. LCMS (19334-11-1A) showed
compound 61-J was consumed completely. The mixture was concentrated
to get compound 61-K (74 mg, 98.9% yield) as a yellow solid, which
was used to next step directly.
[1040] LCMS: (M+H: 281.1).
Preparation of Compounds 61-Ent1 and 61-Ent2
[1041] A solution of AcCl (25.6 mg, 1.5 eq, 0.33 mmol) in
CH.sub.2Cl.sub.2 1 mL was added to a solution of compound 61-K (69
mg, 0.22 mmol, 1.0 eq), TEA (44 mg, 2.0 eq, 0.44 mmol) in
CH.sub.2Cl.sub.2 3 mL at 0.degree. C. The mixture was stirred at
25.degree. C. under N.sub.2 atmosphere for 1 hour. LCMS
(19334-13-1A) showed compound 61-K was consumed completely. The
mixture was concentrated, and the residue was purified by pre-TLC
(PE/EtOAc=1:2) to get a racemate, which further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: 0.1% NH.sub.3H.sub.2O
ETOH) to give 61-Ent1 (12.5 mg, 33.3% yield) and 61-Ent2 (12.5 mg,
33.3% yield) as a white solid.
Spectra for 61-Ent1:
[1042] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 8.11-7.97
(m, 1H), 7.35-7.32 (m, 5H), 5.00-4.83 (m, 1H), 4.36-4.08 (m, 1H),
3.42-3.33 (m, 1H), 2.90-2.84 (m, 1H), 2.48-2.44 (m, 1H), 2.40 (s,
1H), 2.26-2.18 (m, 1H), 1.73-1.72 (m, 3H), 1.19 (s, 3H), 0.45 (d,
J=6.4 Hz, 3H).
[1043] HPLC: (Purity: 99.37%)
[1044] SFC: (ee: 100%)
[1045] LCMS: (M+H: 323.2)
Spectra for 61-Ent2:
[1046] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 8.11-7.96
(m, 1H), 7.35-7.31 (m, 5H), 4.99-4.83 (m, 1H), 4.36-4.08 (m, 1H),
3.42-3.38 (m, 1H), 2.90-2.85 (m, 1H), 2.47-2.44 (m, 1H), 2.39 (s,
1H), 2.26-2.17 (m, 1H), 1.78-1.72 (m, 3H), 1.19 (s, 3H), 0.45 (d,
J=6.4 Hz, 3H).
[1047] HPLC: (Purity: 100%)
[1048] SFC: (ee: 100%)
[1049] LCMS: (M+H: 323.2).
Example 45: Preparation of Compound 62-Ent1
##STR00079##
[1050] Preparation of Compound 62-A Ent1
[1051] To MeOH (16 mL) was added a solid of Na (717 mg, 31.21 mmol,
5 eq) in many portions at 25.degree. C. and stirring until Na was
disappeared. Then compound 39-B Ent1 (2 g, 6.24 mmol, 1.0 eq) was
added. The reaction mixture was stirred at 30.degree. C. for 12
hours. TLC (PE/EA=3:1) showed the starting materials were consumed
completely. The mixture was quenched by Sat. NH.sub.4Cl (20 mL) and
extracted with EtOAc (20 mL.times.3). The combined organic layer
was washed with brine (50 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered, concentrated under reduced pressure to
supply crude compound 62-A Ent1 (2 g) as yellow oil.
Preparation of Compound 62 Ent1
[1052] To a solution of compound 62-A Ent1 (2 g, 6.24 mmol, 1.0 eq)
in Tol. (30 mL) was added DDQ (1.7 g, 7.49 mmol, 1.2 eq) slowly.
The mixture was stirred at 50.degree. C. for 2 h. TLC (PE/EA=3:1)
showed compound 10 was consumed completely. The mixture was diluted
with water (50 mL), and extracted with EtOAc (50 mL.times.3). The
combined organic layer dried over anhydrous Na.sub.2SO.sub.4,
filtered, and concentrated under reduced pressure. The residue was
purified by column chromatography (PE/EtOAc=100:1-5:1) to give
crude compound 62 Ent1 (1.2 g, 60% yield) as a light yellow solid.
LCMS: (M-99: 219.1) The crude compound 62 Ent1 (900 mg) was
purified by SFC (Condition: Neu-MeOH; Column: AD (250 mm*30 mm, 10
um); FlowRate: 50 mL/min) to give 450 mg as a white solid. An 80 mg
portion of this material was further purified by SFC (Condition:
Neu-MeOH; Column: AD (250 mm*30 mm, 10 um); FlowRate: 50 mL/min) to
give pure 62 Ent1 (37 mg, Rt=3.737 min) as a white solid.
Data for 62-Ent1
[1053] HPLC: (Purity: 98.81%)
[1054] LCMS: M-Boc: 219.1)
[1055] SFC: (Rt=3.737, ee: 100%)
[1056] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.44 (s, 1H),
4.59-4.21 (m, 1H), 4.20-3.88 (m, 1H), 4.20-3.88 (m, 1H), 2.68 (s,
2H), 1.84 (m, 1H), 1.70 (m, 1H), 1.63-1.59 (m, 1H), 1.48 (s, 9H),
1.23 (d, J=3.1 Hz, 6H), 1.10 (s, 3H)
Example 46: Preparation of Compound 63
##STR00080##
[1058] A mixture of compound 12-J-Ent1 (100 mg, 0.39 mmol, 1.0 eq.)
and TEA (159 mg, 1.57 mmol, 4.0 eq.) in DCM (5 mL) was added
acetyl-d.sub.3 chloride (64 mg, 0.78 mmol, 2.0 eq) dropwise at
0.degree. C. The mixture was stirred at 10.degree. C. for 0.5 h.
LCMS showed that the starting material was consumed completely and
the desired product was observed. The mixture was concentrated in
vacuo and purified by prep-HPLC (Column: Phenomenex Synergi C18
150*30 mm*4 um, Condition: water (0.225% FA)-ACN; FlowRate: 25
mL/min) to give 63 (85 mg) as a white solid. The crude 63 was
separated by SFC (Mobile phase: 0.1% NH.sub.3.H.sub.2O-EtOH;
Column: Chiralpak OD (250 mm*30 mm, 5 um); FlowRate: 60 mL/min) to
give 63 (36.0 mg, Rt=4.16 min, yield: 35.5%) as a white solid.
[1059] LCMS: (M+H: 264.1, crude)
[1060] SFC: (Rt=3.86 min; crude)
[1061] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.42-7.47 (m,
1H), 4.61-4.93 (m, 1H), 3.61-4.05 (m, 1H), 3.05-3.12 (m, 1H),
2.11-2.44 (m, 1H), 1.91-1.95 (m, 1H), 1.78-1.64 (m, 2H), 1.27-1.20
(m, 6H), 1.11 (s, 3H).
[1062] HPLC: (Purity: 99.63%)
[1063] LCMS: (M+H: 264.1)
[1064] SFC: (Rt=4.16, ee: 98.9%)
Example 47: Preparation of Compound 64
##STR00081##
[1066] To a mixture of compound 12-J-Ent1 (100 mg, 0.39 mmol, 1.0
eq.) and TEA (159 mg, 1.57 mmol, 4.0 eq.) in DCM (5 mL) was added
methylchloroformate (130 mg, 1.14 mmol, 2.0 eq). The mixture was
stirred at 10.degree. C. for 0.5 h. LCMS showed that the starting
material was consumed completely and the desired product was
observed. The mixture was concentrated in vacuo and purified by
prep-HPLC (Column: Phenomenex Synergi C18 150*30 mm*4 um,
Condition: water (0.225% FA)-ACN; FlowRate: 25 mL/min) to give 64
(120 mg, enantio-enriched) as a white solid. The enantio-enriched
64 was separated by SFC (Mobile phase: Neu-EtOH; Column: Chiralpak
AD (250 mm*30 mm, 10 um); FlowRate: 50 mL/min) to give 64 (28.0 mg,
Rt=2.89 min, yield: 28%) as a white solid.
[1067] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.42 (s, br, 1H),
4.34-4.46 (m, 1H), 3.92-4.14 (m, 1H), 3.74 (s, 3H), 2.60-2.75 (m,
2H), 1.90-1.81 (m, 1H), 1.71-1.74 (m, 1H), 1.62-1.65 (m, 1H),
1.28-1.22 (m, 6H), 1.11 (s, 3H).
[1068] HPLC: (Purity: 95.35%).
[1069] LCMS: (M+H: 227.1).
[1070] SFC: (Rt=2.89, Purity: 97.36%).
Example 48: Synthesis of Compounds 65-Ent1 and 65-Ent2
##STR00082##
[1072] A mixture of racemic compound 61-K (110 mg, 0.35 mmol, 1.0
eq), 2,2-difluoroethyl trifluoromethanesulfonate (111.4 mg, 1.5 eq,
0.52 mmol), DIEA (135 mg, 1.05 mmol, 3.0 eq) in THF 3 mL, was
stirred at 80.degree. C. for 2 hours. LCMS) showed compound 61-K
was consumed completely. The mixture was concentrated, and the
residue was purified by prep-TLC (PE:EtOAc=3:1) to get a mixture,
further purified by SFC (column: AD (250 mm*30 mm, 5 um),
condition: 0.1% NH.sub.3H.sub.2O/ETOH) to give 65-Ent1 (27 mg,
45.0% yield) and 65-Ent2 (21 mg, 35.0% yield) as a white solid. The
absolute configuration was not determined.
Spectra for 65-Ent1
[1073] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.85-7.82 (m,
2H), 7.42 (s, 1H), 7.31-7.29 (m, 3H), 6.06-5.76 (m, 1H), 3.36 (d,
J=10.0 Hz, 1H), 3.18 (d, J=6.4 Hz, 1H), 2.89-2.81 (m, 2H), 2.58 (d,
J=6.8 Hz, 1H), 2.48-2.46 (m, 1H), 1.96-1.94 (m, 2H), 1.15 (s, 3H),
0.46 (s, 3H).
[1074] HPLC: (Purity: 98.86%)
[1075] SFC: (Rt: 2.995 min, ee: 100%)
[1076] LCMS: (M+H: 345.2)
Spectra for 65-Ent2
[1077] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.85-7.82 (m,
2H), 7.42 (s, 1H), 7.32-7.29 (m, 3H), 6.08-5.78 (m, 1H), 3.36 (d,
J=10.0 Hz, 1H), 3.18 (d, J=6.4 Hz, 1H), 2.89-2.81 (m, 2H), 2.58 (d,
J=6.8 Hz, 1H), 2.48-2.47 (m, 1H), 1.96-1.94 (m, 2H), 1.15 (s, 3H),
0.46 (s, 3H).
[1078] HPLC: (Purity: 100%)
[1079] SFC: (Rt: 3.509 min, ee: 98.55%)
[1080] LCMS: (M+H: 345.2).
Example 49: Preparation of Compounds 66 and 67
##STR00083##
[1082] A mixture of compound 12-J Ent1 (200 mg, 0.785 mmol, 1.0
eq.), 2-fluoropropanoic acid (72 mg, 0.785 mmol, 1.0 eq.) and DIEA
(202 mg, 1.570 mmol, 2.0 eq.) and HATU (298 mg, 0.785 mmol, 1.0
eq.) in CH.sub.3CN (4 mL) was stirred at 20.degree. C. for 16 h.
LCMS showed that the starting material was consumed completely and
the desired product was observed. The mixture was added Sat.
NH.sub.4Cl (15 mL). The residue was extracted with EtOAc (15
mL.times.3). The combined organic layers were washed with brine (15
mL), dried over Na.sub.2SO.sub.4, filtered and concentrated. The
residue was purified by prep-HPLC (Column: Phenomenex Synergi C18
150*30 mm*4 um, Condition: water (0.225% FA)-ACN; FlowRate: 25
mL/min) to give the crude diasteromers 66 (79 mg, 34.2% yield) and
compound 67 (86 mg, 37.3% yield). Both isomers are yellow
solid.
[1083] The crude compounds were further purified by SFC as
follows:
[1084] The crude compound 66 (79 mg) was separated by SFC (Mobile
phase: Neu-EtOH; Column: IC (250 mm*30 mm, 10 um); FlowRate: 60
mL/min) to give 66 (34.8 mg, Rt=7.26 min, 44% yield) as a yellow
solid. The absolute configuration of the fluorine-bearing carbon
was not established.
Spectra for 66:
[1085] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.50-7.40 (m,
1H), 5.44-5.15 (m, 1H), 4.91-4.50 (m, 1H), 4.35-3.86 (m, 1H),
3.17-2.92 (m, 1H), 2.65-2.43 (m, 1H), 2.06-1.89 (m, 1H), 1.75-1.65
(m, 2H), 1.59-1.56 (m, 3H), 1.29-1.20 (m, 6H), 1.12 (s, 3H)
[1086] HPLC: (Purity: 99.04%)
[1087] LCMS: (M+H: 293.2)
[1088] SFC: (Rt=7.26 min, ee: 99.03%)
[1089] The crude compound 67 (86 mg) was separated by SFC (Mobile
phase: Neu-EtOH; Column: IC (250 mm*30 mm, 10 um); FlowRate: 60
mL/min) to give 67 (46.1 mg, Rt=6.013 min, 53.6% yield) as a yellow
solid. The absolute configuration of the fluorine-bearing carbon
was not established.
Spectra for 67:
[1090] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.=7.54-7.43 (m,
1H), 5.50-5.18 (m, 1H), 4.89-4.55 (m, 1H), 4.32-3.99 (m, 1H),
3.15-2.94 (m, 1H), 2.73-2.47 (m, 1H), 2.04-1.93 (m, 1H), 1.91-1.69
(m, 2H), 1.67-1.59 (m, 3H), 1.32-1.23 (m, 6H), 1.14 (s, 3H)
[1091] HPLC: (Purity: 99.38%)
[1092] LCMS: (M+H: 293.2)
[1093] SFC: (Rt=6.013, ee: 100%)
Example 50: Preparation of Compounds 69-Ent1 and 69-Ent2
##STR00084## ##STR00085##
[1094] Preparation of Compound 69-A
[1095] To a mixture of ethyl 3-(ethylamino)propanoate (15 g, 100
mmol, 1.0 eq) and BnCOCl (18 g, 120 mmol, 1.2 eq) in
acetone/H.sub.2O (300 mL, V=10:1) was added K.sub.2CO.sub.3 (16.6
g, 120 mmol, 1.2 eq) at 0.degree. C. in one portion. The suspension
solution was stirred at 12-18.degree. C. for 5 hours. TLC
(PE/EA=1:1) showed that the ethyl 3-(ethylamino)propanoate was
consumed completely. The reaction mixture was poured in to water
(150 mL) and extracted with EtOAc (100 mL.times.2). The combined
organic layers were dried over Na.sub.2SO.sub.4, filtered and
concentrated to give compound 69-A (32 g, yield equivalent) as
yellow oil, which was used for next step without further
purification.
[1096] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.37-7.10 (m,
5H), 4.19-4.03 (m, 2H), 3.78-3.66 (m, 2H), 3.65-3.53 (m, 2H),
3.42-3.27 (m, 2H), 2.62 (t, J=7.0 Hz, 1H), 2.49-2.35 (m, 1H),
1.29-1.19 (m, 3H), 1.13-1.04 (m, 3H).
Preparation of Compound 69-B
[1097] To a solution of compound 69-A (32 g, 120 mmol, 1.0 eq) in
THF (300 mL) was added NaH (5.8 g, 150 mmol, 1.2 eq) in many
portions at 45.degree. C. The suspension was stirred at 75.degree.
C. for 16 hs. TLC (PE/EA=1:1) showed the compound 69-A was consumed
completely and a new spot was detected. The reaction mixture was
quenched with H.sub.2O (150 mL), adjusted pH=4 by 1N HCl and
extracted with EtOAc (100 mL.times.2). The combined organic layer
was washed with brine, dried over Na.sub.2SO.sub.4, filtered and
concentrated to give compound 69-B (22 g, crude) as a yellow solid,
which was used for the next step without further purification.
[1098] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.52-7.10 (m,
5H), 3.76-3.46 (m, 3H), 3.40-3.17 (m, 1H), 2.82-2.15 (m, 2H),
2.11-2.00 (m, 1H), 1.29-1.23 (m, 5H).
Preparation of Compound 69-C
[1099] To a solution of compound 69-B (22 g, 100 mmol, 1.0 eq) and
TEA (20.2 g, 200 mmol, 2.0 eq) in MeCN (200 mL) was added EVK (8.5
g, 100 mmol, 1.2 eq). The reaction mixture was stirred at
75.degree. C. for 18 hours. TLC (PE/EA=1:1) showed the compound
69-B was consumed completely and a new spot was detected. The
solvent was removed to give the crude compound 69-C (25 g, crude)
as yellow oil, which was used for next step without further
purification.
[1100] LCMS: (M+H: 302.1)
Preparation of Compound 69-D
[1101] To a solution of compound 69-C (22 g, crude) in methanol (50
mL) MeOH/MeONa (150 mL, 1M) at 0.degree. C. The reaction mixture
was stirred at 55.degree. C. for 18 hs. LCMS (19336-83-1A) showed
the compound 69-C was consumed completely. The reaction mixture was
acidified with 1N HCl to make pH=7-9 and concentrated to remove
MeOH. The crude was diluted into water (80 mL) and extracted with
EtOAc (80 mL.times.2). The combined organic layer was washed with
brine, dried over Na.sub.2SO.sub.4, filtered and concentrated to
obtained the residue, which was purified by column chromatography
on silica gel (PE/EtOAc=10:1-5:1) to give compound 69-D (6 g,
30.0%) as a yellow solid.
[1102] LCMS: (M+H: 284.1)
[1103] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta.: 7.40-7.20 (m,
5H), 3.69-3.53 (m, 1H), 3.36-3.24 (m, 1H), 3.11-3.01 (m, 1H),
2.99-2.90 (m, 1H), 2.86-2.66 (m, 2H), 2.59-2.48 (m, 1H), 2.44-2.26
(m, 2H), 2.13-2.02 (m, 1H), 1.89 (s, 3H), 1.02 (t, J=7.0 Hz, 2H),
1.10-0.96 (m, 1H).
Preparation of Compound 69-E
[1104] A mixture of compound 69-D (4 g, 14.1 mol, 1.0 eq.) and Pd/C
(400 mg) in Py/THF (40 mL, V=4:1) was stirred under 40-50 psi of
H.sub.2 at 7-15.degree. C. for 18 hours. TLC (PE/EA=1:1) showed the
compound 69-D was consumed completely. The suspension was filtered
through a pad of celite and concentrated to give the crude. The
crude was diluted into EA (100 mL), washed with HCl (1M,
100.times.2), dried over Na.sub.2SO.sub.4, filtered and
concentrated to give desired product 69-E (3.2 g, yield: 80%) as a
yellow solid.
[1105] .sup.1HNMR (400 MHz, CHLOROFORM-d) .delta.: 7.64-7.53 (m,
2H), 7.37-7.27 (m, 3H), 3.51-3.42 (m, 1H), 3.30-3.22 (m, 1H),
3.21-3.10 (m, 2H), 2.86 (qd, J=6.4, 12.2 Hz, 1H), 2.69-2.64 (m,
1H), 2.37-2.31 (m, 1H), 2.30-2.17 (m, 3H), 2.13-2.04 (m, 2H), 1.15
(d, J=6.5 Hz, 3H), 1.02 (t, J=7.2 Hz, 3H).
Preparation of Compound 69-F
[1106] To a solution of compound 69-E (1.2 g, 4.21 mmol, 1.0 eq) in
ethyl formate (6.2 g, 84.2 mmol, 20 eq) was added a solution of
NaOMe/MeOH (3.11 mmoL, 16.8 mL, 3.4 eq, 5.4M) at 0.degree. C.
dropwise. The mixture was stirred at 17.degree. C. for 18 hours.
LCMS (19336-88-1A) showed the reaction was completed. Most of the
starting material was almost consumed. The mixture was poured into
water (50 mL) and acidified to male PH=3-4. The mixture was
extracted with EtOAc (50 mL.times.2). The combined organic phase
was dried over Na.sub.2SO.sub.4, and filtered. The filtrate was
concentrated in vacuo to give compound 69-F (1.5 g, crude), which
was used directly in the next step without purification.
[1107] LCMS: (M+H: 314.1)
Preparation of Compound 69-G
[1108] To a solution of compound 69-F (1.5 mg, 4.79 mmol, 1 eq) in
EtOH/H.sub.2O (20 mL, V=5:1) was added hydrochloride hydroxylamine
(330 mg, 4.79 mmol, 1.0 eq). The mixture was stirred at 55.degree.
C. for 3 hours. LCMS showed the reaction was completed. The mixture
was concentrated in vacuo to give the residue, which was treated
with saturated NaHCO.sub.3 (50 mL) and extracted with EtOAc (30
mL.times.2). The combined organic phase was dried over
Na.sub.2SO.sub.4, and filtered. The filtrate was concentrated in
vacuo to give the residue, which was purified by column
chromatography on silica gel (PE/EA=10:1-5:1-1:1) to give compound
69-G (800 mg, yield: 75%) as a yellow solid.
[1109] LCMS: (M+H: 311.1)
[1110] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.20 (s, 1H),
7.25-7.00 (m, 5H), 3.71-3.62 (m, 1H), 3.61-3.53 (m, 1H), 3.52-3.35
(m, 3H), 2.98 (dd, J=2.6, 17.0 Hz, 1H), 2.35-2.23 (m, 1H), 2.16 (s,
1H), 2.05-1.91 (m, 2H), 1.89-1.79 (m, 1H), 1.33 (d, J=6.8 Hz, 3H),
1.25 (t, J=7.2 Hz, 3H).
Preparation of Compound 69-H
[1111] To a solution of compound 69-G (800 mg, 2.57 mmol, 1.0 eq)
in MeOH (5 mL) was added a solution of NaOMe/MeOH (5 mL, 2M). The
mixture was stirred at 8-15.degree. C. for 18 hours. TLC
(PE:EA=1:1) showed most of the starting material was almost
consumed and a new spot was detected. The mixture was poured into
water (30 mL) and acidified with HCl (1M) to make PH=4-5. The
mixture was extracted with EtOAc (30 mL.times.2). The combined
organic phase was dried over Na.sub.2SO.sub.4 and filtered. The
filtrate was concentrated in vacuo to give compound 69-H (820 mg,
crude) as colorless oil, which was used directly in the next step
without purification.
Preparation of Compounds 69-Ent1 and 69-Ent2
[1112] To a solution of crude racemic compound 69-H (820 mg, 2.6
mmol, 1.0 eq) in toluene (10 mL) was added DDQ (590 mg, 2.6 mmol,
1.0 eq). The mixture was stirred at 85.degree. C. for 2 hours. TLC
(PE:EA=1:2) showed most of the starting material was consumed and a
new spot was detected. The mixture was concentrated in vacuo to
give the residue, which was purified by column chromatography on
silica gel (PE/EA=10:1-5:1-1:1) to give oxidized product (300 mg,
yield: 79.3%) as a racemic mixture. The racemic mixture was further
separated by SFC (column: OJ (AD (250 mm*30 mm, 10 um)) condition:
Neu-ETOH) to give 69-Ent1 (88 mg, yield: 29.3% Rt=4.029 min) and
69-Ent2 (77 mg, yield: 25.6%, Rt=5.739 min). Both as pale white
solids. The absolute configuration was not determined.
Spectra for 69-Ent1
[1113] .sup.1H NMR (400 MHz, CHLOROFORM-d.sub.4) .delta.: 8.45 (s,
1H), 7.32-7.44 (m, 3H), 7.13 (dd, J=1.5, 8.0 Hz, 2H), 3.46-3.74 (m,
4H), 2.46-2.35 (m, 2H), 1.89 (br dd, J=7.0, 14.0 Hz, 1H), 1.75-1.61
(m, 1H), 1.29 (t, J=7.0 Hz, 3H), 1.15 (d, J=6.0 Hz, 3H).
[1114] SFC: (ee: 100%)
[1115] HPLC: (Purity: 96.64%)
[1116] LCMS: (M+H=309.0)
Spectra for 69-Ent2
[1117] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta.: 8.45 (s,
1H), 7.33-7.44 (m, 3H), 7.13 (dd, J=1.5, 8.0 Hz, 2H), 3.43-3.74 (m,
4H), 2.33-2.49 (m, 2H), 1.89 (br dd, J=7.0, 14.0 Hz, 1H), 1.74-1.61
(m, 1H), 1.29 (t, J=7.0 Hz, 3H), 1.15 (d, J=6.0 Hz, 3H).
[1118] SFC: (ee: 100%)
[1119] HPLC: (Purity: 100%)
[1120] LCMS: (M+H=309.0)
Example 51: Preparation of Compound 53-Ent1
##STR00086##
[1122] Compound 53-Ent1 can be obtained in a manner analogous to
that described for Compound 53-Ent2 by using
(S)-1-phenylethan-1-amine in place of (R)-1-phenylethan-1-amine in
the conversion of 51-B to 51-C.
[1123] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 7.96 (s,
1H), 3.74-3.78 (m, 1H), 3.57-3.58 (m, 2H), 3.38-3.39 (m, 1H), 2.16
(s, 3H), 2.10-2.12 (m, 1H), 1.95-1.88 (m, 2H), 1.64-1.66 (m, 2H),
1.20-1.25 (m, 6H), 1.10-1.08 (m, 3H).
[1124] HPLC: (Purity: 97.98%)
[1125] SFC: (Column: Chiralcel OD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
96.4%)
[1126] LCMS: (M+H: 275.1)
Example 52: Preparation of Compound 70
##STR00087## ##STR00088##
[1128] To a solution of ethyl 3-(methylamino)propanoate (14 g, 107
mmol, 1 eq.) in acetone (140 mL) and H.sub.2O (14 mL) was added
K.sub.2CO.sub.3 (22.1 g, 160 mmol, 1.5 eq.). Then 2-phenylacetyl
chloride (19.8 g, 128 mmol, 1.2 eq.) was added dropwise. The
mixture was stirred at 16.degree. C. for 2 hours. TLC (PE/EA=1:1)
showed that the starting material was consumed completely and a new
spot was observed. The mixture was poured into water (150 mL) and
extracted with EtOAc (205 mL.times.3). The combined organic phase
was dried over sodium sulfate, and filtered. The filtrate was
concentrated in vacuo to give the compound 70-A (21 g, crude) as a
yellow oil which was used next step without further
purification.
[1129] LCMS: (M+H: 250.1).
Preparation of Compound 70-B
[1130] To a solution of compound 70-A (9 g, 36.1 mmol, 1.0 eq.) in
THF (anhydrous, 100 mL) was added NaH (1.04 g, 43.3 mmol, 1.2 eq.).
The mixture was stirred at 70.degree. C. for 12 hours. LCMS showed
that the starting material was consumed completely and the desired
product was detected. The mixture was poured into water (100 mL)
and adjusted pH to 3-4 by adding 1M HCl aq. The mixture was
extracted with EtOAc (100 mL.times.4). The combined organic phase
was dried over sodium sulfate, and filtered. The filtrate was
concentrated in vacuo to give the compound 70-B (9.5 g, crude) as a
yellow oil which was used next step without further
purification.
[1131] LCMS: (M+H: 204.1).
Preparation of Compound 70-C
[1132] To a solution of compound 70-B (9 g, 44.3 mmol, 1.0 eq.) in
MeCN (90 mL) was TEA (8.9 g, 8.86 mmol, 2.0 eq.) and EVK (4.4 g,
53.1 mmol, 1.2 eq.). The mixture was stirred at 75.degree. C. for
18 hours. TLC (PE/EA=1:1) showed the starting materials were
consumed completely and a new spot was observed. The mixture
concentrated in vacuo to give compound 70-C (8.5 g, crude) as a
yellow oil which was used next step without further
purification.
[1133] LCMS: (M+H: 288.1).
Preparation of Compound 70-D
[1134] Na (768 mg, 33.4 mmol, 1.2 eq.) was added to a stirred MeOH
(160 mL) in many portions at 20.degree. C. and until Na was
disappeared. Then compound 70-C (8 g, 27.8 mmol, 1.0 eq.) was
added. The reaction mixture was stirred at 25.degree. C. for 16
hours. TLC (PE/EA=1:1) showed the starting materials were consumed
completely and a new spot was observed. The mixture quenched by
Sat. NH.sub.4Cl (160 mL) and extracted with EtOAc (300 mL.times.3).
The combined organic layer was dried over anhydrous
Na.sub.2SO.sub.4, filtered, concentrated under reduced pressure to
give the residue, which was purified by column chromatography
(PE/EtOAc=100:1 to 10:1) to give compound 70-D (3.6 g, 48% yield)
as a white solid.
[1135] LCMS: (M+H: 270.1).
[1136] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.28-7.34 (m,
3H), 7.22-7.27 (m, 2H), 3.01-3.11 (m, 2H), 2.98 (s, 3H), 2.79-2.90
(m, 1H), 2.62-2.71 (m, 1H), 2.49 (dd, J=4.03, 14.67 Hz, 1H),
2.38-2.44 (m, 1H), 2.27-2.34 (m, 1H), 2.03-2.10 (m, 1H), 1.88 (t,
J=1.28 Hz, 3H).
Preparation of Compound 70-E
[1137] To a solution of compound 70-D (1.5 g, 5.57 mmol, 1.0 eq.)
in THF (anhydrous, 30 mL) was added potassium ter-butoxide (6.68
mL, 6.68 mmol, 1.2 eq. 1 M in THF) slowly at 0.degree. C. The
resulting brown solution was stirred at 15.degree. C. for 0.5 hour.
Methyl iodine (790 mg, 5.57 mmol, 1.0 eq.) was added to the
solution at 0.degree. C. via syringe. The suspension was stirred at
15.degree. C. for 16 hours. LCMS showed that the starting material
was consumed completely and the desired product was detected. The
mixture was added Sat. NH.sub.4Cl (50 mL). The residue was
extracted with EtOAc (50 mL.times.3). The combined organic layers
were washed with brine (100 mL), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give compound 70-E (1.3 g, 86.6%
yield) as a yellow solid.
[1138] LCMS: (M+H: 284.1).
[1139] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.37-7.48 (m,
2H), 7.28-7.35 (m, 2H), 7.21-7.26 (m, 1H), 6.09-6.22 (m, 1H),
3.84-3.95 (m, 1H), 3.70-3.78 (m, 1H), 2.90-2.94 (m, 3H), 2.71-2.82
(m, 1H), 2.27-2.51 (m, 2H), 1.58 (s, 1H), 1.33-1.40 (m, 3H),
1.19-1.26 (m, 3H)
Preparation of Compound 70-F
[1140] Na (0.36 g, 15.6 mmol, 3.4 eq.) was added to a stirred of
MeOH (15 mL) in many portions at 25.degree. C. and until Na was
disappeared and then was added compound 70-E (1.3 g, 4.59 mmol, 1.0
eq.) in HCOOEt (20 mL) was added the above solution at 0.degree. C.
dropwise over 5 min under N.sub.2. The reaction mixture was stirred
at 20.degree. C. for 12 hours. LCMS showed that the starting
material was consumed completely and the desired product was
detected. The mixture was quenched by water (50 mL), adjusted pH to
5 by adding AcOH, extracted with EtOAc (50 mL.times.3). The
combined organic layer was washed with brine (100 mL.times.2),
dried over anhydrous Na.sub.2SO.sub.4, filtered, concentrated under
reduced pressure to supply compound 70-F (1.4 g, crude) as yellow
oil.
[1141] LCMS: (M+H: 312.1)
Preparation of Compound 70-G
[1142] To a solution of compound 70-F (1.4 g, 4.49 mmol, 1.0 eq.)
in EtOH (15 mL) and H.sub.2O (3 mL) was added hydrochloride
hydroxylamine (312 mg, 4.49 mmol, 1.0 eq.). After addition the
mixture was stirred at 50.degree. C. for 16 h. TLC (PE/EA=1:1)
showed the starting materials were consumed completely and a new
spot was observed. The mixture was diluted with NaHCO.sub.3 (20
mL), and extracted with EtOAc (30 mL.times.3). The combined organic
layer dried over anhydrous Na.sub.2SO.sub.4, filtered, and
concentrated under reduced pressure, the residue was purified by
column chromatography (PE/EtOAc=20:1 to 5:1) to give compound 70-G
(1.3 g, 92.8% yield) as a yellow solid.
[1143] LCMS: (M+H: 309.1)
[1144] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.19 (s, 1H),
7.11-7.26 (m, 5H), 6.09 (dd, J=2.6, 4.0 Hz, 1H), 4.29 (dd, J=2.6,
18.2 Hz, 1H), 4.09 (dd, J=4.2, 18.2 Hz, 1H), 3.91 (d, J=16.6 Hz,
1H), 3.01-3.07 (m, 3H), 2.81 (d, J=16.4 Hz, 1H), 1.46-1.53 (m, 3H),
0.88-0.92 (m, 3H)
Preparation of Compound 70-H
[1145] Na (485 mg, 21.07 mmol, 5.0 eq.) was added to a stirred of
MeOH (11 mL) in many portions at 25.degree. C. and until Na was
disappeared. Then compound 70-G (1.3 g, 4.21 mmol, 1.0 eq.) was
added. The reaction mixture was stirred at 20.degree. C. for 12
hours. TLC (PE/EA=1:1) showed the starting materials were consumed
completely and a new spot was observed. The mixture quenched by
Sat. NH.sub.4Cl (20 mL) and extracted with EtOAc (30 mL.times.3).
The combined organic layer was washed with brine (150 mL), dried
over anhydrous Na.sub.2SO.sub.4, filtered, concentrated under
reduced pressure to supply compound 70-H (1.2 g, crude) as yellow
oil.
[1146] LCMS: (M+H: 309.1).
Preparation of Compounds 70-Ent1 and 70-Ent2
[1147] To a solution of compound 70-H (1.2 g, 3.89 mmol, 1.0 eq.)
in Tol. (20 mL) was added DDQ (1.14 g, 4.67 mmol, 1.2 eq.) slowly.
The mixture was stirred at 50.degree. C. for 2 hours. LCMS showed
that the starting material was consumed completely and the desired
product was detected. The mixture was diluted with water (30 mL),
and extracted with EtOAc (30 mL.times.3). The combined organic
layers was dried over anhydrous Na.sub.2SO.sub.4, filtered, and
concentrated under reduced pressure. The residue was purified by
column chromatography (PE/EtOAc=20:1 to 3:1) to give crude racemic
product (200 mg) as a colorless oil. The residue was further
purified by prep-SFC (Column: AD (250 mm*30 mm; 10 um); Condition:
Neu-EtOH; FlowRate: 80%) to give the 70-Ent1 (59 mg, 4.9% yield) as
white solid and 70-Ent2 (78 mg, 6.5% yield) as white solid.
Spectra for 70-Ent1
[1148] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.83 (s, 1H),
7.29-7.42 (m, 5H), 6.18 (dd, J=1.8, 5.0 Hz, 1H), 4.23 (dd, J=1.8,
18.40 Hz, 1H), 3.95 (dd, J=5.2, 18.2 Hz, 1H), 2.97 (s, 3H), 1.44
(s, 3H), 0.85 (s, 3H)
[1149] HPLC: (Purity: 100%)
[1150] SFC: (Rt=3.019, ee: 100%)
[1151] LCMS: (M+H: 307.1)
Spectra for 70-Ent2:
[1152] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.83 (s, 1H),
7.28-7.44 (m, 5H), 6.18 (dd, J=1.8 5.0 Hz, 1H), 4.23 (dd, J=1.8,
18.4 Hz, 1H), 3.95 (dd, J=5.2, 18.2 Hz, 1H), 2.97 (s, 3H), 1.44 (s,
3H), 0.85 (s, 3H)
[1153] HPLC: (Purity: 98.80%)
[1154] SFC: (Rt=4.463, ee: 100%)
[1155] LCMS: (M+H: 307.1)
Example 53. Preparation of Compounds 71-Ent1 and 71-Ent2
##STR00089##
[1156] Preparation of Compound 71-A
[1157] Pd/C (100 mg) was added to a solution of compound 70-D (1.0
g, 3.71 mmol, 1.0 eq) in pyridine 4 mL and MeOH 20 mL under argon,
and the mixture was stirred under H.sub.2 (45 psi) at 20.degree. C.
for 14 hours. TLC (PE:EtOAc=1:1, Rf=0.5) showed compound 70-D was
consumed completely. The mixture was filtered, and the filtrate was
concentrated to give compound 71-A (1.0 g, 100% in yield) as yellow
oil.
[1158] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.63 (d, J=7.6
Hz, 2H), 7.34-7.36 (m, 2H), 7.29-7.31 (m, 1H), 3.24-3.27 (m, 2H),
2.93 (s, 3H), 2.76-2.68 (m, 2H), 2.35-2.36 (m, 1H), 2.23-2.26 (m,
2H), 2.11-2.14 (m, 3H), 1.16 (d, J=6.8 Hz, 3H).
Preparation of Compound 71-B
[1159] NaOMe (2 mL, 11.5 mmol, 5.4 M in MeOH) was added to a
solution of compound 71-A (1.0 g, 3.69 mmol, 1.0 eq) in HCOOEt 10
mL, and the mixture was stirred at 25.degree. C. for 2 hours. TLC
(PE:EtOAc=1:1, Rf=0.2) showed compound 71-A was consumed
completely. The mixture was diluted with water 10 mL, adjusted pH=5
with HOAc, extracted with EtOAc (40 mL). The organic layer was
washed with brine 20 mL, and dried over anhydrous Na.sub.2SO.sub.4,
filtered, and the filtrate was concentrated to get compound 71-B
(700 mg, 67.6% yield) as yellow solid, which was used to next step
directly.
Preparation of Compound 71-C
[1160] Hydrochloride hydroxylamine (178 mg, 2.57 mmol, 1.1 eq) was
added to a solution of compound 71-B (700 mg, 2.34 mmol, 1.0 eq) in
10 mL of EtOH/H2O (V:V=10:1), and the mixture was stirred at
50.degree. C. for 14 hours. LCMS (19334-118-1A) showed compound
71-B was consumed completely. The mixture was diluted with water
(20 mL), extracted with EtOAc (40 mL). The organic layer was washed
with brine (20 mL), dried over anhydrous Na.sub.2SO.sub.4,
filtered, and concentrated to get compound 71-C (500 mg, 83.8%
yield) as yellow oil.
[1161] LCMS: (M+H: 297.1).
[1162] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.22 (s, 1H),
7.20-7.27 (m, 3H), 7.03-7.05 (m, 2H), 3.55-3.56 (m, 2H), 3.41 (d,
J=17.2 Hz, 1H), 3.11 (s, 3H), 2.98-3.02 (m, 1H), 2.30-2.31 (m, 1H),
2.01-2.04 (m, 2H), 1.86-1.96 (m, 1H), 1.34 (d, J=6.8 Hz, 3H).
Preparation of Compound 71-D
[1163] NaOMe/MeOH (1.3 mL, 5.0 eq, 6.76 mmol, 5.4M) was added to a
solution of compound 71-C (400 mg, 1.35 mmol, 1.0 eq) in MeOH 5 mL,
and the mixture was stirred at 50.degree. C. for 2 hours. LCMS
(19334-119-1A) showed compound 71-C was consumed completely. The
mixture was adjusted to pH=7 with 1N HCl, extracted with EtOAc (20
mL). The organic layer was washed with brine (20 mL), dried over
anhydrous Na.sub.2SO.sub.4, filtered, and concentrated to get
compound 71-D (110 mg, 84.6% yield) as a yellow solid.
[1164] LCMS: (M+H: 297.1).
[1165] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.67 (d, J=8.0
Hz, 1H), 7.20-7.30 (m, 6H), 3.47-3.51 (m, 2H), 3.11-3.20 (m, 2H),
3.05 (s, 3H), 2.76-2.82 (m, 1H), 1.87-1.95 (m, 4H), 1.24-1.27 (m,
2H), 1.13-1.18 (m, 3H).
Preparation of Compounds 71-Ent1 and 71-Ent2
[1166] DDQ (402 mg, 1.77 mmol, 1.5 eq) was added to a solution of
compound 71-D (350 mg, 1.18 mmol, 1.0 eq) in toluene 10 mL, and the
mixture was stirred at 110.degree. C. for 1 hour. TLC
(PE:EtOAc=1:1, Rf=0.6) showed compound 71-D was consumed
completely. The mixture was concentrated, and the residue was
purified by pre-TLC PE/EtOAc=1:1 to get a racemic compound, which
was further separated by SFC (column: AD (250 mm*30 mm, 10 um),
condition: 0.1% NH.sub.3H.sub.2O ETOH) to give 71-Ent1 (70 mg,
20.2% in yield) and 71-Ent2 (70 mg, 20.2% in yield) as a white
solid.
Spectra of 71-Ent1
[1167] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.45 (s, 1H),
7.35-7.43 (m, 3H), 7.10-7.13 (m, 2H), 3.54-3.62 (m, 2H), 3.15 (s,
3H), 2.42-2.46 (m, 2H), 1.86-1.90 (m, 1H), 1.67-1.72 (m, 1H), 1.15
(d, J=6.0 Hz, 3H).
[1168] HPLC: (Purity: 100%)
[1169] SFC: (Column: Chiralcel OD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
99.78%)
[1170] LCMS: (M+H: 295.1).
Spectra of 71-Ent2
[1171] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.46 (s, 1H),
7.35-7.43 (m, 3H), 7.10-7.13 (m, 2H), 3.52-3.59 (m, 2H), 3.15 (s,
3H), 2.42-2.44 (m, 2H), 1.86-1.91 (m, 1H), 1.67-1.72 (m, 1H), 1.15
(d, J=6.0 Hz, 3H).
[1172] HPLC: (Purity: 99.45%).
[1173] SFC: (Column: Chiralcel OD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
98.72%).
[1174] LCMS: (M+H: 295.1).
Example 54. Synthesis of Compound 72 Ent1
##STR00090## ##STR00091##
[1175] Preparation of Compound 72-A Ent1
[1176] 12-K (9.35 g, 30.5 mmol) was dissolved in THF (62.3 mL);
then hex-1-en-3-one (3.59 g, 36.6 mmol) and hydroquinone (67.2 mg,
610 umol) were added. The mixture was stirred at 50.degree. C.,
sheltered from light for 3 days. Reaction was diluted with 1 N HCl
(2 eq). After stirring for 30 min, the reaction was made basic by
adding 10 N NaOH (4 eq). After stirring 10 min, the reaction was
extracted with ethyl acetate. The organic layer was washed with
brine, dried (Na.sub.2SO.sub.4), and concentrated. The crude
material was chromatographed on silica gel with 0-30% ethyl acetate
in heptanes as eluent to give 72-A Ent1 (5.59 g, 60.8% yield).
[1177] LCMS (M+H 302.2)
[1178] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.40-7.28 (m, 5H),
3.63-3.56 (m, 1H), 3.55-3.48 (m, 1H), 2.95-2.87 (m, 1H), 2.70-2.58
(m, 2H), 2.58-2.48 (m, 1H), 2.43-2.28 (m, 4H), 2.28-2.16 (m, 3H),
1.80-1.66 (m, 1H), 1.66-1.56 (m, 2H), 1.00 (s, 3H), 0.91 (t, J=7.4
Hz, 3H)
Preparation of 72-B Ent1
[1179] To a solution of 72-A Ent1 (5.59 g, 18.6 mmol) in methanol
(20.6 mL) was added sodium methoxide (4.5 M in methanol, 13.2 mL,
59.4 mmol). The mixture was stirred at 50.degree. C. overnight,
diluted with water and extracted with ethyl acetate. The organic
layer was washed with brine, dried (MgSO4), and concentrated. The
crude material was purified by silica gel chromatography with ethyl
acetate in heptanes (0-30%) as eluent. Mixed fractions were
repurified (same method) and combined to afford 72-B Ent1 (4.36 g,
82.9% yield).
[1180] LCMS (M+H 284.2)
[1181] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.40-7.28 (m, 5H),
3.62-3.55 (m, 1H), 3.42 (d, J=13.3 Hz, 1H), 3.09-3.02 (m, 1H),
2.68-2.44 (m, 4H), 2.43-2.23 (m, 3H), 2.08-1.99 (m, 1H), 1.83-1.69
(m, 2H), 1.60-1.53 (m, 1H), 1.38 (s, 3H), 0.89 (t, J=7.5 Hz,
3H)
Preparation of 72-C Ent1
[1182] 72-B Ent1 (2.06 g, 7.27 mmol) was azeotroped with toluene
then taken up in THF (65.0 mL). The reaction was cooled by a room
temperature water bath and to the reaction was added t-BuOK (929.8
mg, 8.29 mmol) portionwise. After 1.5 h of stirring, methyl iodide
(511 uL, 8.21 mmol) was added dropwise. After 1 d of stirring, the
reaction was diluted with saturated sodium bicarbonate, extracted
with ethyl acetate, washed with saturated sodium chloride, dried
over sodium sulfate, filtered and evaporated. Purification by
silica gel chromatography using 0-30% ethyl acetate in heptanes as
eluent afforded 72-C Ent1 (1.02 g, 47.2% yield). Single
diastereomer by 1H NMR. Structure confirmed by NMR (nOe).
[1183] LCMS (M+H 298.2)
[1184] 1H NMR (400 MHz, CDCl.sub.3) .delta.=7.40-7.28 (m, 5H), 5.45
(dd, J=2.3, 4.3 Hz, 1H), 3.70 (d, J=13.3 Hz, 1H), 3.48 (d, J=13.3
Hz, 1H), 3.38 (dd, J=4.3, 16.6 Hz, 1H), 2.78 (dd, J=2.0, 16.6 Hz,
1H), 2.62-2.49 (m, 2H), 2.47-2.39 (m, 1H), 2.01-1.90 (m, 2H),
1.76-1.66 (m, 1H), 1.57-1.49 (m, 1H), 1.45 (dd, J=7.3, 13.6 Hz,
1H), 1.18 (d, J=3.0 Hz, 6H), 0.76 (t, J=7.4 Hz, 3H).
Preparation of 72-D Ent1
[1185] 72-C Ent1 (323.0 mg, 1.09 mmol) was dissolved in methanol
(10.0 mL) along with Boc.sub.2O (284.4 mg, 1.30 mmol) and
Pd(OH).sub.2/C (few milligrams). The vessel was evacuated then
backfilled with hydrogen five times. The reaction was hydrogenated
(balloon pressure) overnight. The reaction was filtered through
Celite, washed with methanol and evaporated to give 72-D Ent1
(366.9 mg, 109.5% yield crude).
[1186] LCMS (M+H 308.3)
Preparation of 72-E Ent1
[1187] 72-D Ent1 (366.9 mg, 1.19 mmol) was dissolved in ethyl
formate (4.00 mL, 49.7 mmol). With stirring was added sodium
methoxide (4.37 M in methanol, 1.09 mL, 4.76 mmol) slowly and the
reaction was stirred at room temperature overnight. The reaction
was diluted with water and acetic acid (273 uL, 4.77 mmol) was
added. The mixture was extracted with ethyl acetate, washed with
saturated sodium chloride solution, dried over sodium sulfate,
filtered and evaporated to give 72-E Ent1 (431.2 mg, 108.0% yield
crude).
[1188] LCMS (M+H 336.3)
Preparation of 72-F Ent1+72-G Ent1
[1189] To a solution of 72-E Ent1 (313.2 mg, 933.7 umol) in ethyl
alcohol (8.9 mL) and water (0.44 mL) was added hydroxylamine
hydrochloride (648.8 mg, 9.34 mmol). The solution was stirred under
reflux for 1.5 h. The solvent was removed under vacuum to provide a
solid. The solid was then dissolved in saturated aqueous potassium
carbonate and ethyl acetate. The layers were then separated and the
organic layer was washed with saturated sodium chloride, dried over
sodium sulfate, filtered, and concentrated to give a mixture (232.8
mg) of 72-F Ent1 and 72-G Ent1.
[1190] LCMS (M+H 333.2, 233.1)
Preparation of 72-H Ent1
[1191] A mixture of 72-F Ent1 and 72-G Ent1 (232.8 mg) was
dissolved in DCM (4.0 mL) and TFA (4.0 mL) was added. The reaction
was stirred for 1.5 h then evaporated to dryness. After azeotroping
with DCM, the residue was taken up in DCM (8.0 mL) and acetic
anhydride (141.8 uL, 1.50 mmol) was added. With stirring was added
diisopropylethylamine (524 uL, 3.00 mmol). After 3 h stirring at
RT, reaction was diluted with ethyl acetate, washed with dilute
sodium bicarbonate, washed with saturated sodium chloride, dried
over sodium sulfate, filtered, evaporated. Purification by silica
gel chromatography using 0-20% methanol in methylene chloride as
eluent gave 72-H Ent1 (214.9 mg, 83.9% from 72-E Ent1)
[1192] LCMS (M+H 275.1)
Preparation of 72-I Ent1
[1193] To a solution of 72-H Ent1 (214.9 mg, 783.3 umol) in
methanol (10.0 mL) under nitrogen was added sodium methoxide (25%
in methanol, 895.5 uL, 3.92 mmol) at room temperature. The mixture
was stirred at 50.degree. C. for 1 h. The reaction then was diluted
with water and 1 eq 1N HCl (relative to NaOMe) was added. Volatiles
were evaporated under reduced pressure. The solution was extracted
with ethyl acetate, washed with saturated sodium chloride, dried
over sodium sulfate then filtered and concentrated to give 72-I
Ent1 (199.7 mg, 92.9% yield crude).
[1194] LCMS (M+H 275.1)
Preparation of 72 Ent1
[1195] 72-I Ent1 (199.7 mg, 727.9 umol) was dissolved in toluene
(9.0 mL) and DDQ (247.8 mg, 1.09 mmol) was added. The mixture was
heated to reflux for 60 minutes. Reaction was cooled, diluted with
toluene, filtered. Sample was purified by preparative HPLC followed
by SFC (Column: CHIRALPAK IG 30.times.250 mm, 5 um; Method: 30%
Methanol in CO2 (flow rate: 100 mL/min), ABPR 120 bar, MBPR 40 psi)
to give 72 Ent1 (16.2 mg, 8.2%).
Data for 72 Ent1:
[1196] HPLC (Purity: 100%)
[1197] LCMS (M+H 273.1)
[1198] SFC (ee: 100%)
[1199] .sup.1H NMR (400 MHz, CD.sub.3OD) .delta.: 7.67 (s, 0.5H),
7.65 (s, 0.5H), 5.77 (t, J=3.3 Hz, 1H), 5.72 (t, J=3.1 Hz, 0.5H),
4.60-4.52 (m, 1H), 4.37 (dd, J=3.0, 18.3 Hz, 0.5H), 4.03 (dd,
J=3.5, 18.3 Hz, 0.5H), 3.92 (d, J=12.5 Hz, 0.5H), 3.65 (dd, J=3.5,
19.8 Hz, 0.5H), 3.03 (d, J=12.5 Hz, 0.5H), 2.52 (d, J=12.3 Hz,
0.5H), 2.19 (s, 1.5H), 2.18 (s, 1.5H), 1.84-1.74 (m, 1H), 1.61-1.51
(m, 1H), 1.42 (s, 1.5H), 1.36 (s, 1.5H), 1.28 (s, 3H), 0.87-0.77
(m, 3H). NMR consistent with 1:1 mixture of rotamers.
Example 55. Synthesis of Compound 73 Ent1
##STR00092## ##STR00093##
[1200] Preparation of Compound 73-A
[1201] 12-B Ent1 (122.3 mg, 0.40 mmol, hydrochloride salt) was
first taken up in ethyl acetate and washed with 1N NaOH solution.
Organics were washed with saturated sodium chloride, dried over
sodium sulfate, filtered, evaporated. Sample azeotroped with
toluene then taken up in THF (3.5 mL) and cooled in a room
temperature water bath. To the reaction was added t-BuOK (1M in
THF, 454.5 uL, 0.454 mmol). After stirring 1 h, iodoethane (36 uL,
0.45 mmol) was added. After stirring 1 d, the reaction was diluted
with saturated sodium bicarbonate, extracted with ethyl acetate,
washed with brine, dried over sodium sulfate, filtered, and
concentrated. Purification by column chromatography using 0-30%
ethyl acetate in heptanes as eluent afforded 73-A (22.5 mg, 18.9%
yield). Approximately 5:3 mixture of diastereomers by 1H NMR, minor
is 72-C Ent1.
[1202] LCMS (M+H 298.2)
[1203] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.41-7.29 (m, 4H),
7.26-7.22 (m, 1H), 5.49-5.41 (m, 1H), 3.69 (d, J=13.3 Hz, 1H), 3.48
(d, J=13.3 Hz, 1H), 3.43-3.27 (m, 1H), 2.83-2.72 (m, 1H), 2.63-2.48
(m, 2H), 2.48-2.32 (m, 1H), 2.02-1.88 (m, 1H), 1.85-1.61 (m, 2H),
1.59-1.37 (m, 2H), 1.21-1.13 (m, 6H), 0.75 (dt, J=3.4, 7.3 Hz, 3H).
Sample is a mixture of diastereomers by comparison with 72-C.
Preparation of Compound 73-B
[1204] 73-A (410.5 mg, 1.38 mmol) was dissolved in methanol (12.7
mL) along with Boc20 (361.4 mg, 1.66 mmol) and Pd(OH).sub.2/C (few
mg). The vessel was evacuated then backfilled with hydrogen five
times. The reaction was hydrogenated (balloon pressure) overnight.
The reaction was filtered through Celite, washed with methanol and
evaporated to give 73-B (457.8 mg, 107.9% yield crude).
[1205] LCMS (M+H--C4H8 252.1)
Preparation of Compound 73-C
[1206] To a solution of 73-B (457.8 mg, 1.49 mmol) in ethyl formate
(5.0 mL, 62.2 mmol) at RT, sodium methoxide (4.37 M in methanol,
1.36 mL, 5.94 mmol) was added dropwise. The reaction mixture was
stirred at RT overnight. Reaction was diluted with water, brought
to pH 5 with AcOH, then extracted with ethyl acetate. The organics
were washed with saturated sodium chloride, dried over sodium
sulfate, filtered and evaporated to give 73-C (431.2 mg,
86.2%).
[1207] LCMS (M+Na 358.1)
Preparation of Compound 73-D and 73-E
[1208] To a solution of 73-C (431.2 mg, 1.29 mmol) in ethyl alcohol
(12.2 mL) and water (612 uL) was added hydroxylamine hydrochloride
(893.3 mg, 12.85 mmol). The solution was stirred under reflux for
2.5 hours. The solvent was removed under vacuum to provide a solid.
The solid was then dissolved in saturated aqueous potassium
carbonate and ethyl acetate. The layers were then separated and the
organic layer was washed with saturated sodium chloride, dried over
sodium sulfate, filtered, and concentrated to give a mixture of
73-D and 73-E (295.1 mg).
[1209] LCMS (M+H 333.2, 233.1)
Preparation of Compound 73-F
[1210] A mixture of 73-D and 73-E (295.1 mg) was dissolved in DCM
(4.2 mL) and TFA (5.1 mL, 66.4 mmol) was added. The reaction was
stirred for 1.5 h, at which point the reaction was evaporated to
dryness then azeotroped with DCM. The residue was taken up in DCM
(10.2 mL) and acetic anhydride (180.6 uL, 1.91 mmol) was added.
With stirring was added diisopropylethylamine (665.4 uL, 3.81
mmol). After stirring for 1 h at RT, reaction was diluted with
ethyl acetate, washed with dilute sodium bicarbonate, washed with
saturated sodium chloride, dried over sodium sulfate, filtered,
evaporated to give 73-F (335.3 mg, 94.6% yield from 73-C).
[1211] LCMS (M+H 275.2)
Preparation of Compound 73-G
[1212] To a solution of 73-F (335.3 mg, 1.22 mmol) in methanol
(15.0 mL) under nitrogen was added sodium methoxide (25% in
methanol, 1.40 mL, 6.11 mmol) at room temperature. The mixture was
stirred at 50.degree. C. for 1.5 hours. The reaction then was
diluted with water and 1 eq 1N HCl (relative to NaOMe) was added.
Volatiles were evaporated under reduced pressure. The solution was
extracted with ethyl acetate, washed with saturated sodium
chloride, dried over sodium sulfate then filtered and concentrated
to give 73-G (314.3 mg, 93.9% yield).
[1213] LCMS (M+H 275.2).
Preparation of 73 Ent1
[1214] 73-G (314.3 mg, 1.15 mmol) was dissolved in toluene (14.2
mL) and DDQ (390.1 mg, 1.72 mmol) was added. The mixture was heated
at reflux for 60 minutes. Sample was cooled, diluted with toluene,
filtered. Separation by preparative HPLC was followed by second
(achiral) preparative HPLC (Column: Waters Sunfire PREP C18 OBD
50.times.100 mm, 5 um; Method: 95% water/5% ACN (initial
conditions) to 40% water/60% ACN over 15 minutes in 0.1% TFA (flow
rate: 80 mL/min) then SFC (Column: CHIRALPAK IG 30.times.250 mm, 5
um; Method: 25% Methanol in CO2 (flow rate: 100 mL/min), ABPR 120
bar, MBPR 40 psi) to give 73 Ent1 (E1, first eluting) (7.2 mg, 2.3%
yield) and 72 Ent1 (E2, second eluting) (10.1 mg, 3.2% yield).
Data for 73 Ent1:
[1215] HPLC (Purity: 97.5%)
[1216] LCMS (M+H 273.1)
[1217] SFC (ee: 100%)
[1218] 1H NMR (400 MHz, CD.sub.3OD) .delta.: 7.76 (s, 0.5H), 7.73
(s, 0.5H), 5.77 (t, J=3.4 Hz, 0.5H), 5.72 (t, J=3.3 Hz, 0.5H),
4.60-4.49 (m, 1H), 4.33 (dd, J=3.1, 18.2 Hz, 0.5H), 4.08 (dd,
J=3.3, 18.3 Hz, 0.5H), 3.95 (d, J=12.5 Hz, 0.5H), 3.70 (dd, J=3.3,
19.8 Hz, 0.5H), 3.20 (d, J=12.8 Hz, 0.5H), 2.68 (d, J=12.5 Hz,
0.5H), 2.19 (s, 1.5H), 2.18 (s, 1.5H), 2.06-1.84 (m, 2H), 1.41 (s,
1.5H), 1.35 (s, 1.5H), 1.34 (d, J=1.3 Hz, 3H), 0.75 (t, J=7.3 Hz,
3H). NMR consistent with 1:1 mixture of rotamers.
Example 56. Synthesis of Compound 74 Ent1
##STR00094## ##STR00095##
[1219] Preparation of 74-B
[1220] Vinylmagnesium bromide (1 M in THF, 111.8 mL, 111.8 mmol)
was added dropwise over 1 h to 3-phenylpropanal 74-A (10.00 g,
74.53 mmol) in THF (150.0 mL) at -78.degree. C. The reaction was
stirred for 30 minutes, warmed to 0.degree. C. and stirred for an
additional 30 minutes. Then the mixture was poured into saturated
aqueous NH.sub.4Cl (500 mL) and extracted with Et.sub.2O. The
combined organic layers were washed with saturated aqueous NaCl,
dried (MgSO4), and concentrated under reduced pressure to give 74-B
(11.71 g, 96.9% yield) as a pale yellow oil.
[1221] 1H NMR (400 MHz, CDCl.sub.3) .delta.=7.33-7.28 (m, 2H),
7.25-7.16 (m, 3H), 5.92 (ddd, J=6.0, 10.5, 17.1 Hz, 1H), 5.26 (d,
J=17.1 Hz, 1H), 5.15 (d, J=10.5 Hz, 1H), 4.15 (q, J=6.3 Hz, 1H),
2.79-2.66 (m, 2H), 1.91-1.83 (m, 2H), 1.73 (br s, 1H)
Preparation of 74-C
[1222] 74-B (11.71 g, 72.2 mmol) was dissolved in DCM (300.0 mL).
To this was added Dess-Martin periodinane (36.74 g, 86.6 mmol)
portionwise. After 2 h stirring at RT, the reaction was diluted
with ethyl acetate, washed with saturated sodium thiosulfate,
washed with saturated sodium bicarbonate, washed with saturated
sodium chloride, dried over sodium sulfate and evaporated. Sample
taken up in ethyl acetate and washed twice with water, then once
with saturated sodium chloride, dried over magnesium sulfate,
filtered, evaporated. Sample taken up in 100 mL ether and filtered.
Organics washed twice with water, dried over magnesium sulfate,
filtered, evaporated. Sample was purified by silica gel column
using 0-30% ethyl acetate in heptanes as eluent to give the product
74-C (3.93 g, 34.0% yield).
[1223] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.35-7.28 (m, 2H),
7.25-7.16 (m, 3H), 6.37 (dd, J=10.5, 17.8 Hz, 1H), 6.22 (d, J=17.1
Hz, 1H), 5.84 (dd, J=0.6, 10.4 Hz, 1H), 3.01-2.88 (m, 4H)
Preparation of 74-D Ent1
[1224] 12-K (2.00 g, 6.53 mmol) was dissolved in THF (13.3 mL);
then 74-C (1.20 g, 7.52 mmol) and hydroquinone (14.4 mg, 131 umol)
were added. The mixture was stirred at 50.degree. C., sheltered
from light for 2 days. The reaction was diluted with 1 N HCl (2
eq), made basic by adding 10 N NaOH (4 eq), and extracted with
ethyl acetate. The organic layer was washed with brine, dried
(Na.sub.2SO.sub.4), and concentrated. The crude material was
chromatographed on silica gel with ethyl acetate in heptanes
(0-30%) as eluent. This material was dissolved in methanol (1.08
mL) and to this was added sodium methoxide (4.5 M in methanol, 691
uL, 3.11 mmol). The mixture was stirred at 50.degree. C. overnight.
The reaction was diluted with water and extracted with ethyl
acetate. The organic layer was washed with brine, dried
(Na.sub.2SO.sub.4), and concentrated. The crude material was
purified by silica gel chromatography with 0-30% ethyl acetate in
heptanes as eluent to afford 74-D Ent1 (195.0 mg, 8.6% yield).
[1225] LCMS (M+H 346.2)
[1226] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.38-7.29 (m, 4H),
7.26-7.19 (m, 3H), 7.17-7.04 (m, 3H), 3.76-3.62 (m, 2H), 3.55 (d,
J=13.2 Hz, 1H), 3.42 (d, J=13.2 Hz, 1H), 3.02-2.95 (m, 1H),
2.72-2.40 (m, 5H), 2.02-1.92 (m, 1H), 1.91-1.71 (m, 2H), 1.67-1.57
(m, 1H), 1.42 (s, 3H)
Preparation of 74-E Ent1
[1227] 74-D Ent1 (195.0 mg, 564 umol) was azeotroped with toluene
then dissolved in THF (5.0 mL). To this was added t-BuOK (76.0 mg,
677 umol). After stirring for 1 h, methyl iodide (39.4 uL, 632
umol) was added. After stirring 1 d, the reaction was diluted with
saturated sodium bicarbonate, extracted with ethyl acetate, washed
with saturated sodium chloride, dried over sodium sulfate, filtered
and evaporated. Purification by silica gel chromatography using
0-30% ethyl acetate in heptanes as eluent afforded 74-E Ent1 (64.8
mg, 31.9% yield). 7.5:1 mixture of diastereomers by 1H NMR, minor
is 75-A Ent1. Structure confirmed by NMR (nOe).
[1228] LCMS (M+H 360.2)
[1229] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.39-7.28 (m, 5H),
7.27-7.01 (m, 5H), 5.33 (dd, J=2.5, 4.0 Hz, 1H), 3.67 (d, J=13.3
Hz, 1H), 3.48 (d, J=13.3 Hz, 1H), 3.33 (dd, J=4.0, 16.6 Hz, 1H),
3.26 (d, J=13.1 Hz, 1H), 2.81-2.73 (m, 2H), 2.55-2.48 (m, 2H), 2.44
(d, J=10.5 Hz, 1H), 1.97 (d, J=10.8 Hz, 1H), 1.72-1.62 (m, 1H),
1.51-1.41 (m, 1H), 1.22 (s, 3H), 0.76 (s, 3H)
Preparation of 74-F Ent1
[1230] 74-E Ent1 (201.7 mg, 561 umol) was dissolved in methanol
(5.4 mL) along with Boc.sub.2O (146.9 mg, 673 umol) and
Pd(OH).sub.2/C (few mg). The vessel was evacuated then backfilled
with hydrogen five times. The reaction was hydrogenated (balloon
pressure) overnight. Additional Boc.sub.2O (52 mg, 238 umol) and
catalyst (few mg) added and the hydrogenation continued (as above).
After 4 h, the reaction was filtered through Celite, washed with
methanol and evaporated to give 74-F Ent1 (259.1 mg, 125.0% yield
crude).
[1231] LCMS (M+Na 392.2)
Preparation of 74-G Ent1
[1232] 74-F Ent1 (259.1 mg, 701.2 umol) was dissolved in ethyl
formate (1.81 mL, 22.44 mmol). To this was added sodium methoxide
(4.37 M in methanol, 513.5 uL, 2.24 mmol) dropwise. After stirring
overnight, the reaction was diluted with water and 1 eq AcOH
(relative to NaOMe) was added. The reaction was extracted with
ethyl acetate, washed with saturated sodium chloride, dried over
sodium sulfate, filtered and evaporated to give 74-G Ent1 (159.0
mg, 57.0%).
[1233] LCMS (M+Na 420.2)
Preparation of 74-H Ent1 and 74-I Ent1
[1234] To a solution of 74-G Ent1 (159.0 mg, 400.0 umol) in ethyl
alcohol (3.8 mL) and water (190 uL) was added hydroxylamine
hydrochloride (278.0 mg, 4.00 mmol). The solution was stirred under
reflux for 1.5 hours. The solvent was removed to provide a solid.
The solid was then dissolved in saturated aqueous potassium
carbonate and ethyl acetate. The layers were then separated and the
organic layer was washed with saturated sodium chloride, dried over
sodium sulfate, filtered, and concentrated to give a mixture of
74-H Ent1 and 74-I Ent1 (135.3 mg).
[1235] LCMS (M+H 395.2, 295.2)
Preparation of 74-J Ent1
[1236] A mixture of 74-H Ent1 and 74-I Ent1 (135.3 mg) was
dissolved in DCM (3.5 mL) and TFA (3.5 mL) was added. The reaction
was stirred for 1 h, at which point the reaction was evaporated to
dryness, then azeotroped with DCM. The residue was taken up in DCM
(6.0 mL) and acetic anhydride (65.2 uL, 689 umol) was added. With
stirring was added diisopropylethylamine (240.8 uL, 1.38 mmol).
After 1 h at RT, reaction was diluted with ethyl acetate, washed
with dilute sodium bicarbonate, washed with saturated sodium
chloride, dried over sodium sulfate, filtered, evaporated.
Purification by silica gel chromatography using 0-20% methanol in
methylene chloride as eluent gave 74-J Ent1 (109.7 mg, 81.5% from
74-G Ent1).
[1237] LCMS (M+H 337.2)
Preparation of 74-K Ent1
[1238] To a solution of 74-J Ent1 (109.7 mg, 326 umol) in methanol
(5.0 mL) under nitrogen was added sodium methoxide (25% in
methanol, 372.8 uL, 1.63 mmol) at room temperature. The mixture was
stirred at 50.degree. C. for 3 hours. The reaction then was diluted
with water and 1 eq 1N HCl (relative to NaOMe) was added. The
solution was extracted with ethyl acetate, washed with saturated
sodium chloride, dried over sodium sulfate then filtered and
concentrated to give 74-K Ent1 (104.7 mg, 95.4% yield crude)
[1239] LCMS (M+H 337.2)
Preparation of 74 Ent1
[1240] 74-K Ent1 (104.7 mg, 311.2 umol) was dissolved in toluene
(5.1 mL) and DDQ (101.0 mg, 445 umol) was added. The mixture was
heated to reflux for 60 minutes. Reaction cooled to room
temperature. The reaction was filtered and concentrated. The
residue was then purified by preparative HPLC then separated by SFC
(Column: CHIRALPAK IG 30.times.250 mm, 5 um; Co-solvent: 35%
Methanol (w/o any modifier) in CO2 (flow rate: 100 mL/min), ABPR
120 bar, MBPR 40 psi) to give 74 Ent1 (13.5 mg, 13.0% yield).
Data for 74 Ent1:
[1241] HPLC (Purity: 100%)
[1242] LCMS (M+H 335.2)
[1243] SFC (ee: 100%)
[1244] 1H NMR (400 MHz, CD.sub.3OD) .delta.: 7.75 (s, 0.5H), 7.73
(s, 0.5H), 7.29-7.17 (m, 3H), 7.05-6.97 (m, 2H), 5.67 (t, J=3.4 Hz,
0.5H), 5.63 (t, J=3.3 Hz, 0.5H), 4.56 (d, J=12.3 Hz, 0.5H), 4.50
(dd, J=2.8, 19.8 Hz, 0.5H), 4.32 (dd, J=2.9, 18.4 Hz, 0.5H), 4.03
(dd, J=3.5, 18.3 Hz, 0.5H), 3.93 (d, J=12.5 Hz, 0.5H), 3.69-3.62
(m, 0.5H), 3.12-2.52 (m, 3H), 2.19 (d, J=1.5 Hz, 3H), 1.35 (s,
1.5H), 1.33 (s, 1.5H), 1.20 (d, J=3.0 Hz, 3H). NMR consistent with
1:1 mixture of rotamers.
Example 57. Synthesis of Compound 75 Ent1
##STR00096## ##STR00097##
[1245] Preparation of Compound 75-A Ent1
[1246] 12-B Ent1 hydrochloride salt (2.50 g, 8.17 mmol) was first
taken up in ethyl acetate, 1N aqueous NaOH. Organics were washed
with saturated sodium chloride, dried over sodium sulfate,
filtered, evaporated. Material was then azeotroped with toluene,
taken up in THF (70.0 mL) and cooled in a room temperature water
bath. To the reaction was added t-BuOK (1.05 g, 9.40 mmol). After 1
h stirring, benzyl bromide (1.12 mL, 9.40 mmol) was added. After 1
d, the reaction was diluted with saturated sodium bicarbonate,
extracted with ethyl acetate, washed with brine, dried over sodium
sulfate, filtered, and concentrated. Purification by silica gel
chromatography using 0-30% ethyl acetate in heptanes as eluent
afforded 75-A Ent1 (2.12 g, 72.2% yield). Single diastereomer by 1H
NMR.
[1247] LCMS (M+H 360.2).
[1248] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.39-7.29 (m, 4H),
7.26-7.19 (m, 4H), 7.07-7.03 (m, 2H), 5.53 (dd, J=1.9, 4.4 Hz, 1H),
3.69 (d, J=13.1 Hz, 1H), 3.48 (d, J=13.1 Hz, 1H), 3.39 (dd, J=4.5,
16.3 Hz, 1H), 2.98-2.88 (m, 2H), 2.84 (dd, J=1.6, 16.4 Hz, 1H),
2.47-2.34 (m, 2H), 2.14-2.06 (m, 1H), 1.84 (d, J=10.8 Hz, 1H), 1.31
(s, 3H), 1.17-1.09 (m, 1H), 1.08 (s, 3H), 0.90-0.72 (m, 1H)
Preparation of Compound 75-B Ent1
[1249] 75-A Ent1 (2.12 g, 5.90 mmol) was dissolved in methanol
(50.0 mL) along with Boc.sub.2O (1.87 g, 8.57 mmol) and
Pd(OH).sub.2/C (few mg). The vessel was evacuated then backfilled
with hydrogen five times. The reaction was hydrogenated (balloon
pressure) overnight. The reaction was filtered through Celite,
washed with methanol and evaporated. Residue was purified by silica
gel chromatography using 0-30% ethyl acetate in heptanes as eluent
to give 75-B Ent1 (1.52 g, 69.7% yield).
[1250] LCMS (M+Na 392.2)
[1251] 1H NMR (400 MHz, CDCl3) .delta.: 7.25-7.19 (m, 3H),
7.05-6.99 (m, 2H), 5.55-5.36 (m, 1H), 4.48-4.21 (m, 1H), 3.88-3.61
(m, 2H), 3.03-2.95 (m, 1H), 2.93-2.82 (m, 1H), 2.55-2.37 (m, 2H),
2.31-2.15 (m, 1H), 1.60-1.49 (m, 2H), 1.48 (br s, 9H), 1.30 (s,
3H), 0.97 (s, 3H)
Preparation of Compound 75-C Ent1
[1252] To a solution of 75-B Ent1 (1.52 g, 4.11 mmol) in ethyl
formate (13.8 mL, 171.7 mmol) at RT, sodium methoxide (4.37 M in
methanol, 3.77 mL, 16.5 mmol) was added dropwise. The reaction
mixture was stirred at RT for 3 d. Reaction was diluted with water,
then acetic acid (941.1 uL, 16.45 mmol) was added. The mixture was
then extracted with ethyl acetate. The organics were washed with
saturated sodium chloride, dried over sodium sulfate, filtered and
evaporated to give 75-C Ent1 (1.76 g, 107.7% yield)
[1253] LCMS (M+Na 420.2)
[1254] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 14.81 (d, J=6.0 Hz,
1H), 7.85 (d, J=6.0 Hz, 1H), 7.20-7.12 (m, 3H), 7.00-6.94 (m, 2H),
5.74-5.59 (m, 1H), 4.54-4.27 (m, 1H), 3.86-3.62 (m, 2H), 3.07-2.92
(m, 2H), 2.46-2.27 (m, 1H), 1.58-1.39 (m, 14H), 0.98-0.80 (m,
3H)
Preparation of Compound 75-D Ent1
[1255] To a solution of 75-C Ent1 (1.76 g, 4.43 mmol) in ethyl
alcohol (42.1 mL) and water (2.11 mL) was added hydroxylamine
hydrochloride (3.08 g, 44.28 mmol). The solution was stirred under
reflux for 2 hours. The solvent was removed to provide a solid. The
solid was then dissolved in saturated aqueous potassium carbonate
and ethyl acetate. The layers were then separated and the organic
layer was washed with saturated sodium chloride, dried over sodium
sulfate, filtered, and concentrated. Material was dissolved in DCM
(51.6 mL). To this was added Boc.sub.2O (1.21 g, 5.54 mmol) and
then triethylamine (1.28 mL, 9.24 mmol) with stirring. After
stirring overnight at room temperature, the reaction was diluted
with water and extracted with ethyl acetate. The organics were
washed with saturated sodium chloride, dried over sodium sulfate,
filtered and evaporated. The residue was purified by silica gel
chromatography using 0-30% ethyl acetate in heptanes as eluent to
give the 75-D Ent1 (1.45 g, 83.1% yield).
[1256] LCMS (M+H 395.2).
[1257] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.94 (s, 1H),
7.19-6.97 (m, 3H), 6.62-6.55 (m, 2H), 5.94-5.82 (m, 1H), 4.58-4.32
(m, 1H), 3.92-3.64 (m, 2H), 3.11 (s, 2H), 2.49-2.31 (m, 1H),
1.91-1.82 (m, 1H), 1.67-1.43 (m, 13H), 0.93 (s, 3H)
Preparation of Compound 75-E Ent1
[1258] To an ether (17.2 mL) solution of 75-D Ent1 (850.0 mg, 1.72
mmol, 80% purity) (previously azeotroped with ether) under nitrogen
was added sodium methoxide (25% in methanol, 1.97 mL, 8.62 mmol) at
room temperature. The mixture was stirred at this temperature for 2
hours then diluted with ether then washed with 1N HCl solution
twice. The aqueous layers were combined and extracted with ether
and the combined organic layers were washed with water then brine
before being dried over sodium sulfate, then filtered and
concentrated to give 75-E Ent1 (725.2 mg, 106.9% crude)
[1259] LCMS (M+Na 417.2).
Preparation of Compound 75-F Ent1
[1260] To a solution of 75-E Ent1 (150.3 mg, 381 umol) in DMF (3.31
mL) at 0.degree. C.,
1,3-dibromo-5,5-dimethyl-imidazolidine-2,4-dione (63.0 mg, 220
umol) was added, and the solution was stirred for 2 hours. Pyridine
(1.69 mL, 21.0 mmol) was added, and the solution was heated at
50.degree. C. overnight. After concentration in vacuo, the residue
was purified on a silica gel column using 0-30% ethyl acetate in
heptanes as eluent to give 75-F Ent1 (85.2 mg, 57.0% yield).
[1261] LCMS (M+H 393.2).
[1262] 1H NMR (400 MHz, CDCl.sub.3) .delta.: 7.25-7.14 (m, 3H),
6.99-6.90 (m, 3H), 5.90-5.74 (m, 1H), 4.53-4.28 (m, 1H), 4.02-3.68
(m, 2H), 3.25-3.01 (m, 2H), 2.72-2.50 (m, 1H), 1.53-1.43 (m, 12H),
1.25 (s, 3H)
Preparation of Compound 75 Ent1
[1263] 75-F Ent1 (85.2 mg, 217 umol) was dissolved in DCM (1.50
mL). To this was added trifluoroacetic acid (1.50 mL) and the
reaction was stirred at room temperature for 2 h. Volatiles were
removed by evaporation, followed by azeotrope with dichloromethane
(twice). Sample was dissolved in DCM (3.0 mL). To this was added
acetic anhydride (31.0 uL, 328 umol) followed by
diisopropylethylamine (113.7 uL, 651 umol) with stirring. After 1
h, reaction was evaporated to dryness and the residue was purified
by preparative HPLC to give the 75 Ent1 (50.8 mg, 70.0% yield).
Data for 75 Ent1:
[1264] HPLC (Purity: 100%)
[1265] LCMS (M+H 335.1)
[1266] SFC (ee: 99.5% based on ee of 12-B Ent1)
[1267] 1H NMR (400 MHz, CD.sub.3OD) .delta.: 7.38 (s, 0.5H), 7.34
(s, 0.5H), 7.24-7.13 (m, 3H), 6.99-6.94 (m, 2H), 6.04 (t, J=3.3 Hz,
0.5H), 5.99 (t, J=3.3 Hz, 0.5H), 4.59 (dd, J=3.0, 19.8 Hz, 0.5H),
4.43 (d, J=12.5 Hz, 0.5H), 4.38 (dd, J=3.3, 18.3 Hz, 0.5H), 4.13
(dd, J=3.4, 18.4 Hz, 0.5H), 3.81 (d, J=12.8 Hz, 0.5H), 3.74 (dd,
J=3.5, 19.8 Hz, 0.5H), 3.27-3.20 (m, 1H), 3.14 (dd, J=4.3, 13.3 Hz,
1H), 2.95 (d, J=12.8 Hz, 0.5H), 2.45 (d, J=12.3 Hz, 0.5H), 2.18 (s,
1.5H), 2.14 (s, 1.5H), 1.51 (d, J=1.8 Hz, 3H), 1.26 (s, 1.5H), 1.20
(s, 1.5H)
Example 58. Synthesis of Compound 76 Ent1
##STR00098##
[1268] Preparation of Compound 76-A Ent1
[1269] To a reaction vial containing 72-C Ent1 (154.0 mg, 518 umol)
was added anhydrous isopropanol (2.00 mL) and
tris(2,2,6,6-tetramethyl-3,5-heptanedionato)manganese(III) (31.3
mg, 51.8 umol). The solution was degassed for 10 minutes by
bubbling nitrogen through. Separately, phenylsilane (80.2 uL, 652
umol) and tert-butyl hydroperoxide (5.5 M in decane, 170.4 uL,
0.937 mmol) in isopropanol (1.00 mL) were degassed for 10 minutes
in a similar manner. The second solution was added to the first via
syringe slowly over 15 minutes. After 1 d, the solution was
concentrated and purified on silica gel column using 0-30% ethyl
acetate in heptanes as eluent to afford 76-A Ent1 (53.0 mg, 34.2%
yield). Diastereoselectivity not determined.
[1270] LCMS (M+H 300.2)
Preparation of Compound 76-B Ent1
[1271] 76-A Ent1 (53.0 mg, 177 umol) was dissolved in methanol (5.0
mL). To this was added Pd(OH).sub.2/C (few mg). Reaction was
evacuated, then backfilled with hydrogen three times. Reaction was
hydrogenated under balloon pressure of hydrogen overnight. The
reaction was filtered through Celite, which was then washed with
methanol and evaporated. Residue was dissolved in DCM (2.00 mL) and
to this was added Boc.sub.2O (47.9 mg, 219 umol) and then
triethylamine (50.1 uL, 361 umol). After stirring for 1.5 h, sample
was diluted with water, extracted with ethyl acetate, washed with
saturated sodium chloride, dried over sodium sulfate, filtered and
evaporated. Residue was purified by silica gel chromatography to
give 76-B Ent1 (87.2 mg, 159.2% crude).
[1272] LCMS (M+H 310.3)
Preparation of Compound 76-C Ent1
[1273] To a solution of 76-B Ent1 (42.0 mg, 136 umol) in ethyl
formate (2.20 mL, 27.3 mmol) at RT, sodium methoxide (311 uL, 4.37
M, 1.36 mmol) was added dropwise. The reaction mixture was stirred
at RT for 1 d then heated at 55.degree. C. for 1 d. The reaction
had dried out so sample was resuspended in toluene, diluted with
water, brought to pH 5 with acetic acid, then extracted with ethyl
acetate. The organics were washed with saturated sodium chloride,
dried over sodium sulfate, filtered and evaporated to give 76-C
Ent1 (41.5 mg, 90.6% yield crude).
[1274] LCMS (M+H 338.2)
Preparation of Compound 76-D Ent1+76-E Ent1
[1275] To a solution of 76-C Ent1 (41.5 mg, 123 umol) in ethyl
alcohol (1.17 mL) and water (58.5 uL) was added hydroxylamine
hydrochloride (85.5 mg, 1.23 mmol). The solution was stirred under
reflux for 1.5 hours. The solvent was removed to provide a solid.
The solid was then dissolved in saturated aqueous potassium
carbonate and ethyl acetate. The layers were then separated and the
organic layer was washed with saturated sodium chloride, dried over
sodium sulfate, filtered, and concentrated to give a mixture of
76-D Ent1 and 76-E Ent1 (26.0 mg)
[1276] LCMS (M+H 335.1, 235.1)
Preparation of Compound 76-F Ent1
[1277] A mixture of 76-D Ent1 and 76-E Ent1 (26.0 mg) was dissolved
in DCM (1.00 mL) and TFA (1.00 mL) was added. The reaction was
stirred for 2 h, at which point the reaction was evaporated to
dryness then azeotroped with DCM. The residue was taken up in DCM
(2.00 mL) and acetic anhydride (11.0 uL, 117 umol) was added. With
stirring was added diisopropylethylamine (40.7 uL, 233 umol). After
2 h at RT, reaction was diluted with ethyl acetate, washed with
water, washed with saturated sodium chloride, dried over sodium
sulfate, filtered, evaporated. Purification by silica gel
chromatography using 0-100% ethyl acetate in heptanes as eluent
gave 76-F Ent1 (17.4 mg, 51.1% from 76-C Ent1).
[1278] LCMS (M+H 277.2)
Preparation of Compound 76-G Ent1
[1279] To a solution of 76-F Ent1 (17.4 mg, 63.0 umol) in methanol
(2.00 mL) under nitrogen was added sodium methoxide (25% in
methanol, 72.0 uL, 314.80 umol) at room temperature. The mixture
was stirred at 50.degree. C. for 3 hours. The reaction then was
diluted with water and 1 eq 1N HCl was added. The solution was
extracted with ethyl acetate, washed with saturated sodium
chloride, dried over sodium sulfate then filtered and concentrated
to give 76-G Ent1 (17.0 mg, 97.7% yield crude)
[1280] LCMS (M+H 277.2)
Preparation of Compound 76 Ent1
[1281] 76-G Ent1 (17.0 mg, 61.5 umol) was dissolved in toluene
(1.00 mL) and DDQ (20.0 mg, 88.0 umol) was added. The mixture was
heated to reflux for 4 h and the reaction cooled to room
temperature. The reaction was filtered and concentrated. The
residue was then purified by column chromatography using 0-20%
methanol in methylene chloride as eluent. The compound was further
purified by SFC (Column: CHIRALPAK OX-H 30.times.250 mm, 5 um;
Co-solvent: 35% Methanol in CO2 (flow rate: 100 mL/min), ABPR 120
bar, MBPR 40 psi) to give 76 Ent1 (6.6 mg, 39.0%).
Data for 76 Ent1:
[1282] HPLC (Purity: 99.6%)
[1283] LCMS (M+H 275.2)
[1284] SFC (ee: 100%)
[1285] 1H NMR (400 MHz, CD.sub.3OD) .delta.: 7.70 (s, 0.6H), 7.69
(s, 0.4H), 4.76 (td, J=2.2, 13.2 Hz, 0.4H), 4.52 (dd, J=1.8, 12.5
Hz, 0.6H), 4.11 (td, J=2.2, 13.4 Hz, 0.6H), 3.84 (dd, J=1.8, 13.1
Hz, 0.4H), 3.10 (dt, J=3.4, 13.0 Hz, 0.6H), 3.02 (d, J=13.1 Hz,
0.4H), 2.56 (dt, J=4.5, 12.4 Hz, 0.4H), 2.49 (br d, J=12.3 Hz,
0.6H), 2.17 (s, 1.8H), 2.13 (s, 1.2H), 2.12-1.44 (m, 5H), 1.30 (s,
1.2H), 1.25 (s, 1.8H), 1.18 (s, 3H), 0.83 (t, J=7.5 Hz, 3H). 1H NMR
suggests 6:4 mixture of rotamers.
Example 59. Synthesis of Compounds 77-Ent1 and 77-Ent2
##STR00099##
[1286] Procedure for Preparation of Compound 77-A
[1287] A solution of LDA (0.44 M, 17.35 mL) under nitrogen at -78 C
was added to a solution of compound 69-E (1.98 g, 6.94 mmol) in THF
(46.27 mL) under nitrogen at -78 C. After 30 minutes,
trimethylsilyl chloride (979.88 mg, 9.02 mmol, 1.14 mL) was added
rapidly to the solution via syringe. The cooling bath was then
removed and the reaction was warmed to room temperature over 60
minutes. The solution was then partitioned between EtOAc (150 ml)
and NaHCO.sub.3 (150 ml). After separation of layers, the aqueous
layer was extracted with EtOAc (2.times.150 ml) and the combined
organic layers were washed with brine then dried over sodium
sulfate, filtered, and concentrated. This material was then
dissolved in acetonitrile (70 mL) and the mixture was evacuated and
backfilled with nitrogen (3.times.). Palladium(II) acetate (1.87 g,
8.33 mmol) was then added in one portion and the flask was again
evacuated and backfilled with nitrogen (3.times.). The mixture was
then stirred at room temperature for 24 hours. The mixture was then
filtered through celite which was then washed with EtOAc and the
solution was concentrated. The residue was then purified by column
chromatography (5-50% EtOAc/heptane) to provide compound 77-A (1.85
g, 6.53 mmol, 94% yield) as a brown solid which was used as is. A
small sample (.about.150 mg) was purified by chromatography (5-50%
EtOAc/heptane) then submitted to chiral SFC separation to obtain
77A-ent-1 (28.6 mg, Rt=2.73 min) and 77A-ent-2 (28.5 mg, Rt=3.33
min). SFC conditions: Column: CHIRALCEL IC 30.times.250 mm, 5 um;
Method: 40% Methanol in CO2 (flow rate: 100 mL/min), ABPR 120 bar,
MBPR 40 psi.
Data for 77A-Ent-1
[1288] HPLC: (Purity: 97%)
[1289] LCMS: (M+H=284.1)
[1290] SFC: (ee: 100%)
[1291] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.71 (d, J=10.0
Hz, 1H), 7.39-7.28 (m, 3H), 7.26-7.22 (m, 2H), 6.33 (d, J=10.0 Hz,
1H), 3.77-3.64 (m, 1H), 3.63-3.41 (m, 3H), 2.42-2.26 (m, 2H), 1.86
(br d, J=4.8 Hz, 1H), 1.73-1.60 (m, 1H), 1.30 (t, J=7.2 Hz, 3H),
1.10 (d, J=6.3 Hz, 3H).
Data for 77A-Ent-2
[1292] HPLC: (Purity: 98%)
[1293] LCMS: (M+H=284.1)
[1294] SFC: (ee: 100%)
[1295] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.71 (d, J=10.0
Hz, 1H), 7.38-7.29 (m, 3H), 7.26-7.22 (m, 2H), 6.33 (d, J=10.0 Hz,
1H), 3.70 (dd, J=7.2, 13.4 Hz, 1H), 3.63-3.41 (m, 3H), 2.42-2.33
(m, 1H), 2.33-2.26 (m, 1H), 1.92-1.81 (m, 1H), 1.72-1.59 (m, 1H),
1.30 (t, J=7.2 Hz, 3H), 1.10 (d, J=6.5 Hz, 3H).
Procedure for Preparation of Compound 77-B
[1296] Compound 77-A (750.00 mg, 2.65 mmol) was dissolved in THF
(26.50 mL) and cooled to -78.degree. C. A solution of
[bis(trimethylsilyl)amino]lithium (1 M, 26.47 mL) was then added
and the mixture was stirred at -78.degree. C. for 60 minutes then
warmed to 0.degree. C. and stirred for 60 minutes before cooling to
-78.degree. C. Methyl iodide (12.77 g, 89.99 mmol, 5.60 mL) was
then added and the mixture was stirred at -78.degree. C. then
slowly warmed to room temperature and stirred overnight. The
reaction was quenched with saturated aqueous ammonium chloride and
diluted with EtOAc. The layers were separated and the aqueous layer
was extracted with EtOAc. The combined organic layers were dried
over sodium sulfate, filtered, and concentrated. The residue was
purified by column chromatography (5-60% EtOAc/heptane) to provide
77-B (443.5 mg, 56% yield) as a brown solid containing a small
amount of starting material. This material was used without further
purification.
[1297] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.76 (d, J=10.4
Hz, 1H), 7.71 (d, J=10.4 Hz, 1H), 7.33-7.28 (m, 3H), 7.26-7.22 (m,
2H), 6.44 (d, J=10.4 Hz, 1H), 6.33 (d, J=10.4 Hz, 1H), 3.74-3.65
(m, 2H), 3.61-3.51 (m, 1H), 3.46-3.38 (m, 1H), 2.46 (dd, J=2.4,
13.4 Hz, 1H), 2.06-2.05 (m, 1H), 2.13-2.02 (m, 1H), 1.81 (ddd,
J=2.4, 6.9, 13.9 Hz, 1H), 1.27 (t, J=7.3 Hz, 3H), 1.16-1.12 (m,
3H), 0.54 (s, 3H).
Procedure for Preparation of Compound 77-C
[1298] To a solution of compound 77-B (312.00 mg, 1.05 mmol) in
pyridine (1.40 mL) and carbon tetrachloride (2.80 mL) was added
iodine (798.84 mg, 3.15 mmol), and the solution was heated at
60.degree. C. for 16 h. The reaction mixture was then cooled to
room temperature and quenched with saturated aqueous sodium
thiosulfate solution (25 mL), and extracted with DCM (2.times.50
mL). The combined organic extracts were washed with brine and dried
with Na.sub.2SO.sub.4. The mixture was then concentrated and
purified by column chromatography (5-50% EtOAc/heptanes) to provide
compound 77-C (340.00 mg, 76.5% yield) as a yellow foam with a
small amount of monomethylated material 77-D. The material was used
in the next step without further purification.
[1299] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 8.54 (s, 1H),
8.50 (s, 1H), 7.34-7.28 (m, 3H), 7.16 (dd, J=1.1, 7.2 Hz, 2H),
3.73-3.61 (m, 2H), 3.55 (dt, J=6.9, 12.2 Hz, 1H), 3.49-3.38 (m,
1H), 2.54 (dd, J=2.0, 13.3 Hz, 1H), 2.15-2.00 (m, 1H), 1.81 (br dd,
J=7.4, 13.4 Hz, 1H), 1.27 (t, J=7.5 Hz, 3H), 1.17 (s, 3H), 0.57 (s,
3H).
Procedure for Preparation of Compounds 77-Ent1 and 77-Ent2
[1300] Compound 77-C (200.00 mg, 472.49 umol), Zinc cyanide (166.45
mg, 1.42 mmol), and tetrakis(triphenylphosphine)palladium(0)
(109.20 mg, 94.50 umol) were taken up in DMF (6.75 mL). The vial
was sparged with nitrogen for 10 minutes and the reaction was
stirred at 80.degree. C. for 40 minutes. The reaction mixture was
then cooled to room temperature, diluted with ether, washed with
water then dried with sodium sulfate, filtered, and concentrated.
The material was then purified by column chromatography (5-50%
EtOAc/Heptanes) to provide a white solid which was then separated
by chiral SFC to provide 77-Ent1 (29.8 mg, Rt=3.09 min) and
77-Ent-2 (26.9 mg, Rt=4.90 min). Chiral SFC conditions: Column:
CHIRALPAK IA 30.times.250 mm, 5 um. Method: 15% Methanol in CO2
(flow rate: 100 mL/min), ABPR 120 bar, MBPR 40 psi.
Data for 77-Ent-1
[1301] HPLC: (Purity: 98%)
[1302] LCMS: (M+H=323.1)
[1303] SFC: (ee: 100%)
[1304] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.52 (s, 1H),
7.36-7.33 (m, 2H), 7.29-7.26 (m, 1H), 7.14-7.11 (m, 2H), 3.74-3.64
(m, 2H), 3.56 (dt, J=6.7, 12.2 Hz, 1H), 3.44 (qd, J=7.3, 13.4 Hz,
1H), 2.46 (dd, J=2.1, 13.1 Hz, 1H), 2.10 (ddt, J=6.7, 11.6, 13.4
Hz, 1H), 1.85 (ddd, J=1.8, 6.7, 14.0 Hz, 1H), 1.28 (t, J=7.0 Hz,
3H), 1.21 (s, 3H), 0.60 (s, 3H).
Data for 77-Ent-2
[1305] HPLC: (Purity: 99%)
[1306] LCMS: (M+H=323.1)
[1307] SFC: (ee: 100%)
[1308] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.52 (s, 1H),
7.37-7.33 (m, 2H), 7.29-7.26 (m, 1H), 7.13 (dd, J=1.8, 7.9 Hz, 2H),
3.74-3.64 (m, 2H), 3.56 (dt, J=6.7, 12.2 Hz, 1H), 3.44 (qd, J=6.9,
14.7 Hz, 1H), 2.46 (dd, J=2.4, 13.4 Hz, 1H), 2.10 (ddt, J=7.3,
12.2, 14.0 Hz, 1H), 1.85 (ddd, J=2.1, 6.6, 13.9 Hz, 1H), 1.28 (t,
J=7.0 Hz, 3H), 1.21 (s, 3H), 0.60 (s, 3H).
Example 60. Synthesis of Compounds 78-Ent1 and 78-Ent2
##STR00100##
[1309] Procedure for Preparation of Compound 78-A
[1310] To a solution of compound 69-D (100.00 mg, 352.90 umol) in
THF (1.91 mL) was added potassium tert-butoxide (1 M in THF, 423.48
uL) slowly at 0.degree. C. The resulting solution was stirred at
0.degree. C. for 30 minutes. Iodomethane (50.09 mg, 352.90 umol, 22
uL) was then added and the suspension was slowly warmed to room
temperature and stirred at this temperature overnight. The mixture
was quenched by addition of saturated aqueous ammonium chloride and
diluted with EtOAc. The layers were separated and the aqueous layer
was extracted with EtOAc (3.times.). The combined organic layers
were washed with brine then dried over sodium sulfate, filtered,
and concentrated. The material was used in the next step without
purification.
[1311] LCMS: (M+H=298.2)
Procedure for Preparation of Compound 78-B
[1312] Compound 78-A (105 mg, 353.07 umol) was dissolved in ethyl
formate (523.11 mg, 7.06 mmol, 568.60 uL) and treated with sodium
methoxide (5.4 M in methanol, 261.53 uL). After 30 minutes, a white
solid formed and the mixture was diluted with toluene (5.00 mL) and
stirred for an additional 3 hours. Water was then added followed by
acetic acid to adjust the pH to .about.5. Ethyl acetate was then
added and the layers were separated. The organic phase was washed
with brine then dried over sodium sulfate, filtered, and
concentrated. This material was then dissolved in ethanol (3.34 mL)
and water (166.83 uL) and hydroxylamine hydrochloride (243.45 mg,
3.50 mmol, 145.78 uL) was added. The solution was stirred at reflux
for 1 hour. The solvent was then removed to provide a solid. The
solid was then dissolved in saturated aqueous sodium bicarbonate
and ethyl acetate. The layers were then separated and the organic
layer was washed with water then dried over sodium sulfate,
filtered, and concentrated. This material (78-B) was used in the
next step without further purification.
[1313] LCMS: (M+H=323.1)
Procedure for Preparation of Compound 78-C
[1314] To a solution of compound 78-B (113.00 mg, 350.50 umol) in
ether (3.51 mL) under nitrogen was added sodium methoxide (4.37 M,
400.46 uL) at room temperature. The mixture was stirred at this
temperature for 2 hours then diluted with Ether then washed with 5%
HCl solution (2.times.). The aqueous layers were combined and
extracted with Ether (2.times.) and the combined organic layers
were washed with water then brine before being dried over sodium
sulfate then filtered and concentrated. A yellow foam (78-C) was
obtained and was used in the next step without further
purification.
[1315] LCMS: (M+H=323.1)
Procedure for Preparation of Compounds 78-Ent1 and 78-Ent2
[1316] Compound 78-C (113 mg, 350.50 umol) was dissolved in toluene
(3.51 mL) and DDQ (87.52 mg, 385.55 umol) was added. The mixture
was heated to 100.degree. C. for 60 minutes then cooled to room
temperature. The reaction was filtered and concentrated. The
residue was then purified by column chromatography (5-60%
EtOAc/Heptane, 12 g column). The product was isolated as an
off-white solid and was then separated by SFC to provide 78-ent1
(17.3 mg, Rt=2.26 min) and 78-ent-2 (17.4 mg, Rt=2.89 min) as tan
solids. Chiral SFC conditions: Column: CHIRALPAK IG 30.times.250
mm, 5 um. Method: 35% Methanol (w/o any modifier) in CO.sub.2 (flow
rate: 100 mL/min), ABPR 120 bar, MBPR 40 psi).
Data for 78-Ent1
[1317] HPLC: (Purity: 95%)
[1318] LCMS: (M+H=321.1)
[1319] SFC: (ee: 100%)
[1320] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.82 (s, 1H),
7.39-7.35 (m, 3H), 7.34-7.30 (m, 3H), 6.20 (dd, J=1.8, 5.5 Hz, 1H),
4.17 (dd, J=2.4, 18.3 Hz, 1H), 3.94 (dd, J=4.9, 18.3 Hz, 1H),
3.49-3.41 (m, 1H), 3.41-3.32 (m, 1H), 1.45 (s, 3H), 1.08 (t, J=7.3
Hz, 3H), 0.87 (s, 3H).
Data for 78-Ent2
[1321] HPLC: (Purity: 97%)
[1322] LCMS: (M+H=321.2)
[1323] SFC: (ee: 100%)
[1324] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.82 (s, 1H),
7.39-7.35 (m, 3H), 7.34-7.31 (m, 2H), 6.20 (dd, J=2.1, 5.2 Hz, 1H),
4.17 (dd, J=1.8, 18.3 Hz, 1H), 3.94 (dd, J=5.5, 18.3 Hz, 1H),
3.49-3.40 (m, 1H), 3.40-3.33 (m, 1H), 1.45 (s, 3H), 1.08 (t, J=7.0
Hz, 3H), 0.87 (s, 3H).
Example 61: Synthesis of Compound 79
##STR00101##
[1326] To a solution of compound 47-C Ent1 (124.00 mg, 568.05 umol)
in DCM (2.89 g, 34.08 mmol, 2.18 mL) was added triethylamine
(172.44 mg, 1.70 mmol, 236.22 uL). The reaction mixture was cooled
to 0 C and stirred while (2,2,2-trifluoroacetyl)
2,2,2-trifluoroacetate (131.24 mg, 624.86 umol, 86.91 uL) was added
dropwise. The mixture was slowly warmed to room temperature and
stirred for 2 hours. Added EtOAc then washed with NaHCO3.sub.(aq),
H2O, and Brine. The organic layer was dried over sodium sulfate and
solvent removed in vacuo. The residue was purified by reversed
phase chromatography (C-18) to yield compound 79 (50.7 mg, 28% yld)
as an off white solid powder.
[1327] LCMS: ESI-MS (M-H).sup.-: 313
[1328] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. 7.41-7.50 (m,
1H), 4.79-4.85 (m, 0.34H), 4.53 (dd, J=1.83, 12.82 Hz, 0.69H),
4.22-4.28 (m, 0.68H), 3.81 (br d, J=13.43 Hz, 0.33H), 3.17 (ddd,
J=3.66, 12.21, 14.04 Hz, 0.70H), 3.09 (d, J=13.43 Hz, 0.33H),
2.71-2.80 (m, 0.36H), 2.69 (d, J=12.21 Hz, 0.68H), 1.96-2.05 (m,
1H), 1.73-1.89 (m, 2H), 1.24-1.28 (m, 6H), 1.12-1.15 (m, 3H)
Example 62: Synthesis of Compound 80
##STR00102##
[1329] Step 1: Preparation of Compound 80-A
[1330] To a vial was added compound 39-C Ent 1 (180.31 mg, 818.45
umol), sodium tert-butoxide (163.86 mg, 1.71 mmol), RuPhos (31.83
mg, 68.20 umol), RuPhos Pd G3 (57.04 mg, 68.20 umol) and dioxane
(1.42 mL). The reaction mixture was sparged with nitrogen for 15
minutes and 5-bromo-2-methyl-pyrimidine (118.00 mg, 682.04 umol)
was added. The reaction was heated at 100.degree. C. for 2 hours.
Added EtOAc then washed with 1N HCL.sub.(aq.) and was extracted
with EtOAc. The combined organic layers were dried over sodium
sulfate, filtered and concentrated. The residue was purified by
flash chromatography, gradient elution 0 to 100% EtOAc: Heptane to
yield crude compound 80-A (63 mg) as a tan oil. Crude material
carried forward.
[1331] LCMS: ESI-MS (M+H).sup.+: 313.1
Step 2: Preparation of Compound 80-B
[1332] To a solution of compound 80-A (63.00 mg, 201.66 umol) in
ether (1.43 g, 19.32 mmol, 2.02 mL) was added sodium methoxide
(4.37 M, 230.73 uL). The reaction mixture was stirred at room
temperature for 2 hours. Added Ether then washed with 1N
HCl.sub.(Aq.) solution and extracted with Ether. The combined
organic layers were dried over sodium sulfate, filtered and
concentrated. The residue (yellow oil) was carried forwards without
further purification.
[1333] LCMS: ESI-MS (M+H).sup.+: 313.1.
Step 3: Preparation of Compound 80
[1334] To a solution of compound 80-B (63.00 mg, 201.66 umol) in
Toluene (1.75 g, 19.01 mmol, 2.01 mL) was added DDQ (59.51 mg,
262.16 umol). The mixture was heated to reflux for 1.5 hours then
cooled to room temperature. Added EtOAc then washed with
NaHCO3.sub.(Aq.) and Brine. The organic layer was dried over sodium
sulfate and solvent removed in vacuo. The residue was purified by
reversed phase chromatography (C-18) to yield compound 80 (20.1 mg,
32% yld) as an off white powder.
[1335] LCMS: ESI-MS (M+H).sup.+: 311.1.
[1336] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 8.64 (s, 2H),
7.51-7.55 (m, 1H), 3.94-4.03 (m, 1H), 3.57-3.65 (m, 1H), 2.89-3.00
(m, 1H), 2.81-2.89 (m, 1H), 2.80 (s, 3H), 1.90-2.00 (m, 2H),
1.82-1.89 (m, 1H), 1.40 (s, 3H), 1.28 (s, 4H), 1.16 (s, 3H)
Example 63: Synthesis of Compound 81-Ent1
##STR00103##
[1337] Preparation of Compounds 51-N-Ent1 and 52-A-Ent1
[1338] To a solution of 51-K Ent1 (obtained in a manner analogous
to that described for 51-K-Ent2, using (S)-1-phenylethan-1-amine in
place of (R)-1-phenylethan-1-amine in the transformation of 51-B to
51-C) (3.0 g, 12.85 mmol, 1.0 eq) in CH.sub.2Cl.sub.2 100 mL was
added MeSO.sub.3H (16.0 g, 167 mmol, 13.0 eq) and followed by
NaN.sub.3 (1.7 g, 25.7 mmol, 2.0 eq) at 0.degree. C. The reaction
mixture was allowed to stir at 20.degree. C. for 14 hours. The
reaction was detected on LCMS (19334-152-1A) showed that it was
almost desired product. The reaction mixture was poured into
saturated aqueous NaHCO.sub.3150 mL, extracted with
CH.sub.2Cl.sub.2 (150 mL.times.2). The organic phase was washed
with brine (150 mL). The combined organic layers were dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated to give a
mixture of compounds 51-N-Ent1 and 52-A-Ent1 (2.0 g, 62.7% yield)
as yellow solid.
[1339] LCMS: (M+H: 249.1).
[1340] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.21 (s, 1H),
8.05 (s, 1H), 7.48 (s, 1H), 3.36-3.46 (m, 3H), 3.27-3.29 (m, 1H),
2.72-2.76 (m, 2H), 2.35-2.39 (m, 1H), 2.32-2.35 (m, 1H), 2.18-2.25
(m, 1H), 2.14-2.16 (m, 1H), 11.74-1.75 (m, 1H), 1.63-1.64 (m, 1H),
1.35-1.37 (m, 3H), 1.21-1.23 (m, 3H), 0.95-1.04 (m, 3H).
Preparation of Compounds 81-A and 81-B
[1341] BH.sub.3.Me.sub.2S (2.2 mL, 10 M/L, 21.7 mmol, 3.0 eq) was
added to a solution of compounds 51-N-Ent1 and 52-A-Ent1 (1.8 g,
7.25 mmol, 1.0 eq) in THF 50 mL at 20.degree. C. The resulting
mixture was stirred at 80.degree. C. for 14 hours. TLC
(PE/EtOAc=3/1, Rf=0.5) showed the starting material was consumed
completely. The mixture was quenched with methanol 50 mL,
concentrated to supply residue, which was purified by silica gel
(CH.sub.2Cl.sub.2:MeOH from 20:1 to 5:1) to get a mixture of
compounds 81-A and 81-B (150 mg, 27.8% yield) as yellow solid
[1342] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.01 (s, 1H),
3.22-3.26 (m, 1H), 2.80-2.84 (m, 1H), 2.64-2.70 (m, 1H), 2.52-2.54
(m, 2H), 2.50-2.51 (m, 1H), 1.99-2.03 (m, 1H), 1.80-1.82 (m, 1H),
1.43-1.46 (m, 1H), 1.32 (s, 3H), 1.22 (s, 3H), 0.83 (s, 3H).
Preparation of Compounds 81-C and 81-D
[1343] A solution of 81-A and 81-B (800 mg, 3.41 mmol, 1.0 eq) in
MeOH 20 mL, Boc.sub.2O (893 mg, 4.10 mmol, 1.1 eq) was added,
followed by DIEA (879 mg, 6.82 mmol, 2.0 eq). The resulting mixture
was stirred at 20.degree. C. for 14 hours. The mixture was
concentrated to get compounds 81-C and 81-D (800 mg, 70.1% yield)
as yellow solid.
[1344] LCMS: (M+H: 335.2).
[1345] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.01 (d, J=2.8
Hz, 1H), 3.66-3.71 (m, 1H), 3.44-3.49 (m, 1H), 3.17-3.31 (m, 3H),
2.42-2.45 (m, 1H), 2.22-2.35 (m, 1H), 2.12-2.18 (m, 1H), 1.86-1.89
(m, 2H), 1.46-1.47 (m, 10H), 1.32 (s, 3H), 1.26 (s, 3H), 1.20 (s,
3H), 0.87 (s, 3H).
Preparation of Compounds 81-E and 81-F
[1346] NaOMe/MeOH (2.2 mL, 5.0 eq, 11.96 mmol, 5.4M) was added to a
solution of compound 81-C and 81-D (800 mg, 2.39 mmol, 1.0 eq) in
MeOH 10 mL, which was stirred at 25.degree. C. for 14 hours. LCMS
showed compounds 81-C and 81-D were consumed completely. The
mixture was adjusted to pH=5 with 1N HCl, extracted with EtOAc (40
mL). The organic layer was washed with brine (20 mL), dried over
anhydrous Na.sub.2SO.sub.4, filtered, and concentrated to get a
mixture of compounds 81-E and 81-F (600 mg, 75.0% yield) as a white
solid.
[1347] LCMS: (M-56: 279.1).
[1348] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 3.97-4.00 (m,
1H), 3.88-3.89 (m, 1H), 3.67-3.70 (m, 1H), 3.44-3.48 (m, 2H),
3.17-3.21 (m, 3H), 2.84-2.97 (m, 1H), 2.34-2.38 (m, 1H), 1.47-1.49
(m, 18H), 1.18-1.19 (m, 6H), 1.12-1.14 (m, 3H), 0.87-1.90 (m,
3H).
Preparation of Compounds 81-G and 81-H
[1349] DDQ (509 mg, 2.24 mmol, 1.5 eq) was added to a solution of
compounds 81-E and 81-F (500 mg, 1.50 mmol, 1.0 eq) in 10 mL
toluene and stirred at 110.degree. C. for 4 hours. TLC
(PE/EtOAc=3/1, Rf=0.7) showed compounds 81-E and 81-F were consumed
completely. The mixture was concentrated, and the residue was
purified by pre-TLC PE/EtOAc=3:1 to get compounds 81-G and 81-H
(400 mg, 80.5% yield) as a yellow solid.
[1350] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.60 (d, J=6.4
Hz, 1H), 3.61-3.77 (m, 1H), 3.44-3.47 (m, 1H), 3.26-3.29 (m, 1H),
3.13-3.18 (m, 1H), 1.78-1.92 (m, 3H), 1.45-1.48 (m, 1H), 1.20-1.22
(m, 10H), 1.18-1.19 (m, 3H), 1.09-1.10 (m, 3H).
Preparation of Compounds 81-I and 81-J
[1351] HCl/EtOAc (4 mL, 4M) was added to a solution of compounds
81-G and 81-H (400 mg, 1.20 mmol, 1.0 eq) in EtOAc 4 mL at
0.degree. C., the mixture was stirred at 20.degree. C. for 14
hours. TLC (PE:EtOAc=3:1, Rf=0.1) showed compounds 81-G and 81-F
were consumed completely. The mixture was concentrated to give
compounds 81-I and 81-J (320 mg, 100% in yield) as yellow
solids.
[1352] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 10.34 (s, 1H),
9.49 (s, 1H), 7.44 (s, 1H), 3.30-3.39 (m, 3H), 3.07 (s, 1H),
2.00-2.26 (m, 5H), 1.54 (s, 3H), 1.28 (s, 3H), 1.14 (s, 3H).
Preparation of 81-Ent1
[1353] A mixture of 81-I and 81-J (20 mg, 0.074 mmol, 1.0 eq), 2,
2-difluoroethyl trifluoromethanesulfonate (31 mg, 0.149 mmol, 2.0
eq), DIEA (28 mg, 0.222 mmol, 3.0 eq) in THF 1 mL. The mixture was
stirred at 20.degree. C. for 1 hour. LCMS (19441-83-1A) showed
compounds 81-I and 81-J were consumed completely. The mixture was
concentrated, and the residue was purified by prep-TLC
(PE/EtOAc=3/1) to get a residue, which was further purified by SFC
(The first time: column: OJ (250 mm*30 mm, 5 um), condition:
Neu-IPA; The second time: column: C2 (250 mm*30 mm, 10 um),
Neu-IPA; The third time: column: IC (250 mm*30 mm, 10 um),
condition: Neu-IPA) to get 81-Ent1 (11 mg, 50.0% yield) as yellow
solid.
[1354] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.31 (s, 1H),
5.65-5.95 (m, 1H), 2.97-2.98 (m, 2H), 2.93-2.96 (m, 2H), 2.73 (d,
J=13.6 Hz, 1H), 2.63 (d, J=13.6 Hz, 1H), 1.88-1.91 (m, 2H),
1.68-1.69 (m, 2H), 1.50 (s, 3H), 1.26 (s, 3H), 1.20 (s, 3H), 1.08
(s, 3H).
[1355] HPLC: (Purity: 100%)
[1356] SFC: (Column: Chiralcel OD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C., ee:
85.7%).
[1357] LCMS: (M+H: 297.1).
Example 64: Synthesis of Compound 82-Ent1
##STR00104##
[1359] Compound 81-C can obtained from a mixture of 81-C and 81-D
by purification using prep-HPLC separation (Mobile phase A: water
(0.05% ammonia hydroxide v/v)-ACN, Mobile phase B: acetonitrile;
Column: Waters Xbridge Prep OBD C18 100*19 mm*5 um, Detection
wavelength: 220 nm) to get compound 81-C as yellow solid and
81-D.
[1360] LCMS: (M+H: 335.1).
Spectra for 81C
[1361] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.02 (d, J=3.6
Hz, 1H), 3.65-3.72 (m, 1H), 3.44-3.49 (m, 1H), 3.18-3.25 (m, 3H),
2.42-2.46 (m, 1H), 2.18-2.22 (m, 1H), 1.90-2.08 (m, 2H), 1.46-1.47
(m, 9H), 1.32 (s, 3H), 1.26 (s, 3H), 1.20 (s, 3H).
Spectra for 81-D
[1362] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.01 (s, 1H),
4.86-5.01 (m, 1H), 3.71-4.13 (m, 1H), 3.31-3.58 (m, 4H), 2.98-3.02
(m, 1H), 2.32-2.36 (m, 1H), 2.17-2.20 (m, 1H), 1.46-1.48 (m, 9H),
1.33 (s, 3H), 1.22 (s, 3H), 0.92 (s, 3H).
Preparation of Compound 81-E
[1363] NaOMe/MeOH (0.6 mL, 5.0 eq, 2.98 mmol, 5.4M) was added to a
solution of compound 81-C (200 mg, 0.60 mmol, 1.0 eq) in MeOH 2 mL,
which was stirred at 20.degree. C. for 14 hours. LCMS showed
compound 81-C was consumed completely. The mixture was poured into
water 10 mL, adjusted to pH=7 with 1N HCl, extracted with EtOAc (20
mL). The organic layer was washed with brine (10 mL), dried over
anhydrous Na.sub.2SO.sub.4, filtered, and concentrated to get
compound 81-E (150 mg, 75.0% yield) as a yellow oil.
[1364] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 4.85-5.01 (m,
1H), 3.98-4.04 (m, 1H), 3.71-3.73 (m, 1H), 3.43-3.46 (m, 2H),
3.32-3.39 (m, 3H), 3.13-3.15 (m, 1H), 1.47 (s, 9H), 1.19-1.24 (m,
3H), 1.11-1.12 (m, 3H), 0.82-0.97 (m, 3H).
Preparation of Compound 81-G
[1365] DDQ (152 mg, 0.67 mmol, 1.5 eq) was added to a solution of
compound 81-E (150 mg, 0.45 mmol, 1.0 eq) in toluene 3 mL, stirred
at 110.degree. C. for 1 hour. TLC (PE/EtOAc=3/1, Rf=0.6) showed
compound 81-E was consumed completely. The mixture was
concentrated, and the residue was purified by pre-TLC PE/EtOAc=3/1
to get compound 81-G (100 mg, 67.1% yield) as a yellow oil.
[1366] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.26 (s, 1H),
3.64-3.85 (m, 1H), 3.38-3.49 (m, 2H), 3.16-3.22 (m, 1H), 1.93-1.94
(m, 1H), 1.76-1.78 (m, 1H), 1.59-1.62 (m, 3H), 1.44 (s, 9H), 1.26
(s, 3H), 1.21 (s, 3H), 1.07 (d, J=4.4 Hz, 3H).
Preparation of Compound 81-I
[1367] HCl/EtOAc (2 mL, 4M) was added to a solution of compound
81-G (100 mg, 0.30 mmol, 1.0 eq) in EtOAc 2 mL at 0.degree. C., the
mixture was stirred at 20.degree. C. for 2 hours. TLC
(PE/EtOAc=3/1, Rf=0.1) showed compound 81-G was consumed
completely. The mixture was concentrated to give compound 81-I (70
mg, 86.7% in yield) as yellow solid.
[1368] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 9.95 (s, 1H),
9.74 (s, 1H), 7.32 (s, 1H), 3.40-3.50 (m, 2H), 3.18-3.25 (m, 2H),
2.20 (br, s, 2H), 2.02 (br, s, 2H), 1.85 (br, s, 1H), 1.36 (s, 3H),
1.26-1.28 (m, 4H), 1.11 (s, 3H).
Preparation of Compound 81-Ent1
[1369] AcCl (25 mg, 0.32 mmol, 1.5 eq) was added to a solution of
compound 81-I (70 mg, 0.21 mmol, 1.0 eq), DIEA (82 mg, 0.63 mmol,
3.0 eq) in CH.sub.2Cl.sub.2 2 mL at 0.degree. C., the mixture was
stirred at 20.degree. C. for 14 hours. LCMS showed compound 81-I
was consumed completely. The mixture was concentrated, and the
residue was purified by prep-TLC (CH.sub.2Cl.sub.2/MeOH=20/1) to
81-Ent1 (23 mg, 32.1% yield) as yellow solid.
[1370] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 7.58 (d,
J=2.8 Hz, 1H), 3.73-3.97 (m, 2H), 3.47-3.62 (m, 2H), 2.11 (d, J=9.2
Hz, 3H), 1.71-2.00 (m, 5H), 1.32 (d, J=9.6 Hz, 3H), 1.21 (d, J=14.0
Hz, 3H), 1.08 (d, J=4.0 Hz, 3H).
[1371] HPLC: (Purity: 99.05%)
[1372] SFC: (Column: Chiralpak AS-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min, Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
96.6%)
[1373] LCMS: (M+H: 275.0).
Example 65: Synthesis of Compound 168-Ent1
##STR00105##
[1375] To a solution of 12-J-Ent1 (100 mg, 0.39 mmol, 1.0 eq.) and
4-chloro-6-methylpyrimidine (150 mg, 1.17 mmol, 3.0 eq) in dioxane
(3 mL) was added DIPEA (150 mg, 1.17 mmol, 3.0 eq.) in one portion
at 10-18.degree. C. The reaction mixture was stirred stirred at
130.degree. C. for 2 hours. LCMS showed the target product was
obtained. The mixture was concentrated to give the crude, which was
purified by pre-HPLC (water (0.05% HCl)-ACN (Column: Phenomenex
Synergi C18 150*30 mm*4 um, FlowRate ml/min: 25) to give 168-Ent1
(Rt=4.159 min, 41 mg, yield: 38.4% yield) as a yellow solid.
Spectra for 168-Ent1:
[1376] .sup.1H NMR: (400 MHz, METHANOL-d4) .delta.: 8.16 (d, J=7.6
Hz, 1H), 7.74-7.98 (m, 1H), 6.98-7.27 (m, 1H), 5.21-5.51 (m, 1H),
4.26-4.54 (m, 1H), 3.26-3.32 (m, 1H), 2.96-3.05 (m, 1H), 2.62 (d,
J=3.6 Hz, 3H), 2.31 (dd, J=4.33, 11.3 Hz, 1H), 1.79-2.00 (m, 2H),
1.28 (s, 3H), 1.24 (d, J=4.2 Hz, 3H), 1.13 (d, J=1.0 Hz, 3H).
[1377] HPLC: (Purity: 95.4%).
[1378] LCMS: (M+H: 311.0).
[1379] SFC condition: (Column: ChiralPak AD-3 150.times.4.6 mm
I.D., 3 um, Mobile phase: A: CO.sub.2 B: Ethanol (0.05% DEA),
Gradient: from 5% to 40% of B in 5.5 min and hold 40% for 3 min,
then 5% of B for 1.5 min, Flow rate: 2.5 mL/min Column temperature:
40.degree. C., ee: 100%)
Example 66: Synthesis of Compound 83-Ent1
##STR00106##
[1381] To a solution of 12-J-Ent1 (95 mg, 0.37 mmol, 1.0 eq.) and
4-chloro-2-methylpyrimidine (143 mg, 1.12 mmol, 3.0 eq) in dioxane
(3 mL) was added DIPEA (145 mg, 1.12 mmol, 3.0 eq.) in one portion
at 10-18.degree. C. The reaction mixture was stirred stirred at
130.degree. C. for 2 hours. LCMS showed the target product was
obtained. The mixture was concentrated to give the crude, which was
purified by pre-HPLC (water (0.05% HCl)-ACN (Column: Phenomenex
Synergi C18 150*30 mm*4 um, FlowRate ml/min: 25) to give 83-Ent1
(Rt=3.986 min, 16 mg, yield: 15% yield) as a yellow solid.
Spectra for 83-Ent1
[1382] .sup.1H NMR: (400 MHz, METHANOL-d.sub.4) .delta.: 8.64 (d,
J=11.00 Hz, 1H), 7.76-7.93 (m, 1H), 7.14 (d, J=9.0 Hz, 1H),
5.14-5.54 (m, 1H), 4.18-4.57 (m, 1H), 3.24-3.30 (m, 1H), 2.91-3.06
(m, 1H), 2.51 (s, 3H), 2.24-2.36 (m, 1H), 1.82-2.00 (m, 2H), 1.28
(s, 3H), 1.22-1.25 (m, 3H), 1.13 (s, 3H).
[1383] HPLC: (Purity: 97.5%).
[1384] LCMS: (M+H: 311.0).
[1385] SFC condition: (Column: ChiralCel OJ-H 150.times.4.6 mm
I.D., 5 um, Mobile phase: A: CO.sub.2 B: Ethanol (0.05% DEA),
Gradient: from 5% to 40% of B in 5.5 min and hold 40% for 3 min,
then 5% of B for 1.5 min, Flow rate: 2.5 mL/min Column temperature:
40.degree. C., ee: 100%)
Example 67: Synthesis of Compounds 84-Ent1 and 84-Ent2
##STR00107##
[1386] Procedure for Preparation of Compound 84-B
[1387] Compound 84-A can be obtained in a manner analogous to that
described for compound 60-E. To a solution of compound 84-A (20 g,
49.32 mmol, 1.0 eq., 80% purity) in a mixture solvent of
pyridine/THF (480 mL, 1/5, v/v) was added 10% dry Pd/C (5.0 g)
under N.sub.2 protection. The suspension was degassed under vacuum
and purged with H.sub.2 several times. The resulting mixture was
stirred under H.sub.2 (50 psi) at 30.degree. C. for 24 hours. LCMS
showed that the starting material was consumed completely and the
desired compound MS value was detected. Then the reaction mixture
was filtered through a celite of pad and washed with EtOAc (800
mL). The filtrate was concentrated under reduced pressure. The
residue was triturated by a mixture solvent of petroleum
ether/EtOAc (200 mL, 6/1, v/v) and filtered to afford the compound
84-B (14 g, 87% yield) as a white solid, which was used directly
for next step.
[1388] LCMS: (M+Na: 430.1).
[1389] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.62-7.61 (m,
2H), 7.35-7.32 (m, 2H), 7.28 (d, J=7.2 Hz, 1H), 6.98 (d, J=8.4 Hz,
1H), 6.41-6.37 (m, 2H), 4.57-4.44 (m, 2H), 3.78 (s, 3H), 3.42 (s,
3H), 3.21-3.04 (m, 2H), 2.91-2.83 (m, 1H), 2.77-2.2.71 (m, 1H),
2.37-2.24 (m, 3H), 2.16-2.05 (m, 2H), 1.99-1.91 (m, 1H), 1.13 (d,
J=6.0 Hz, 3H).
Procedure for Preparation of Compound 84-C
[1390] A solution of LDA (0.44 M, 127 mL) under nitrogen at -78 C
was added to a solution of 84-B (20.73 g, 50.87 mmol) in THF (127
mL) under nitrogen at -78 C via cannula. After 60 minutes,
Trimethylsilyl chloride (7.18 g, 66.13 mmol, 8.35 mL) was added to
the solution via syringe. The cooling bath was then removed and the
reaction was warmed to room temperature over 2 hours. The solution
was then partitioned between EtOAc (250 ml) and NaHCO3 (250 ml)
solutions. After separation of layers, the aqueous layer was
extracted with EtOAc (2.times.75 ml) and the combined organic
layers were washed with brine then dried over sodium sulfate,
filtered, and concentrated. This material was used in the next step
without further purification. The residue was dissolved in
acetonitrile (510 mL) and the mixture was evacuated and backfilled
with nitrogen (3.times.). Palladium(II) acetate (13.70 g, 61.04
mmol) was then added in one portion and the flask was again
evacuated and backfilled with nitrogen (3.times.). The mixture was
then stirred at room temperature for 20 hours. The mixture was then
filtered through celite and washed with EtOAc. The EtOAc solution
was then concentrated. The resulting residue was purified by column
chromatography (5-60% EtOAc/heptane) to provide 84-C (13.30 g,
32.80 mmol, 64.5% yield) as a white solid.
[1391] LCMS: (M+H: 406.3).
[1392] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. 7.76 (d, J=10.3 Hz,
1H), 7.34-7.31 (m, 1H), 7.30-7.27 (m, 3H), 7.24-7.19 (m, 2H),
6.54-6.47 (m, 2H), 6.34 (d, J=10.0 Hz, 1H), 4.95 (d, J=14.1 Hz,
1H), 4.52 (d, J=14.1 Hz, 1H), 3.86 (s, 3H), 3.84 (s, 3H), 3.57-3.47
(m, 1H), 3.40 (dt, J=7.0, 12.0 Hz, 1H), 2.42-2.22 (m, 2H),
1.83-1.72 (m, 1H), 1.62-1.49 (m, 1H), 1.07 (d, J=6.5 Hz, 3H).
Procedure for Preparation of Compound 84-D
[1393] Compound 84-C (3.10 g, 7.65 mmol) was dissolved in THF (41
mL) and cooled to -78.degree. C. A solution of
[bis(trimethylsilyl)amino]lithium (1.0 M, 14.92 mL) was then added
and the mixture was stirred at -78.degree. C. for 60 minutes then
warmed to 0.degree. C. and stirred for 60 minutes before cooling to
-78.degree. C. Methyl iodide (36.89 g, 259.93 mmol, 16.18 mL) was
then added and the mixture was stirred at -78.degree. C. for 1 hour
then slowly warmed to room temperature and stirred overnight. The
reaction was quenched with sat aq. ammonium chloride and diluted
with EtOAc. The layers were separated and the aqueous layer was
extracted with EtOAc. The combined organic layers were dried over
sodium sulfate, filtered, and concentrated. The residue was
purified by column chromatography (5-60% EtOAc/heptane) to provide
84-D as a brown solid (2.1 g, 65% yield).
[1394] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.82 (d, J=9.77
Hz, 1H), 7.29 (d, J=8.55 Hz, 1H), 7.26-7.19 (m, 5H), 6.53-6.47 (m,
2H), 6.44 (d, J=10.38 Hz, 1H), 4.97 (d, J=14.04 Hz, 1H), 4.45 (d,
J=14.04 Hz, 1H), 3.85 (s, 3H), 3.84 (s, 3H), 3.63 (dd, J=12.82,
6.71 Hz, 1H), 3.43 (td, J=12.36, 7.02 Hz, 1H), 2.44 (dd, J=13.43,
2.44 Hz, 1H), 2.03-1.92 (m, 1H), 1.72 (ddd, J=13.58, 6.56, 2.44 Hz,
1H), 1.11 (s, 3H), 0.51 (s, 3H).
Procedure for Preparation of Compound 84-E
[1395] Compound 84-D (2.10 g, 5.01 mmol) was dissolved in ethanol
(100 mL) and 10% palladium on carbon (533.16 mg, 501.00 umol) was
added. The mixture was degassed with nitrogen then placed under a
balloon of hydrogen. The mixture was stirred for 6 hours then
flushed with nitrogen and filtered through celite and concentrated.
This residue was then dissolved in TFA (28.54 g, 250.50 mmol, 19.2
mL). The mixture was heated to 50.degree. C. for 4 hours. The
mixture was then cooled to room temperature, concentrated and
purified by column chromatography (10-65% of [1:1 EtOAc/EtOH mix]:
heptane) to provide 84-E as an off-white solid (1.23 g, 90%
yield).
[1396] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.34-7.27 (m,
4H), 7.26-7.21 (m, 1H), 6.01 (br s, 1H), 3.66 (br s, 1H), 3.55 (br
s, 1H), 3.01-2.82 (m, 2H), 2.82-2.70 (m, 1H), 2.62-2.41 (m, 2H),
2.11 (d, J=6.71 Hz, 1H), 1.73 (d, J=12.82 Hz, 1H), 1.09 (s, 3H),
0.21 (s, 3H).
Procedure for Preparation of Compound 84-F
[1397] A mixture of compound 84-E (1.23 g, 4.53 mmol), PPTS (342
mg, 1.36 mmol), and Ethylene glycol (3.28 mL) in Toluene (16.4 mL)
were heated to reflux for 16 hours with a Dean-Stark apparatus. The
mixture was cooled to room temperature, diluted with EtOAc, and
washed with NaHCO.sub.3 (2.times.), brine (2.times.), and dried
over sodium sulfate, filtered, and concentrated. The material was
then purified by column chromatography (10-75% of [1:1 EtOAc/EtOH]:
heptane) to provide 84-F as an off-white solid (793.00 mg, 56%
yield).
[1398] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.67-7.61 (m,
2H), 7.33-7.28 (m, 2H), 7.25-7.20 (m, 1H), 5.47 (br s, 1H),
4.09-3.89 (m, 4H), 3.70-3.61 (m, 1H), 3.60-3.50 (m, 1H), 2.87 (dt,
J=14.37, 3.48 Hz, 1H), 2.46-2.33 (m, 2H), 2.27-2.16 (m, 1H),
2.12-2.02 (m, 1H), 1.98-1.90 (m, 1H), 1.84 (dt, J=13.43, 3.33 Hz,
1H), 0.87 (s, 3H), 0.53 (s, 3H).
Procedure for Preparation of Compound 84-G
[1399] Sodium hydride (38.05 mg, 951.14 umol, 60% purity) was added
to an oven dried vial under nitrogen and dissolved in THF (2.4 mL)
then cooled to 0.degree. C. Compound 84-F (150 mg, 475.57 umol) was
added and the mixture was warmed to room temperature and stirred
for 2 hours. Methyl iodide (128 mg, 903.58 umol, 56 uL) was then
added and the mixture was stirred overnight. The reaction was then
diluted with water, extracted with EtOAc (2.times.), and the
combined organic layers were dried over sodium sulfate, filtered,
and concentrated. The material was used in the next step without
purification. The residue was dissolved in THF (0.79 mL) and
treated with HCl (1 M, 394.62 uL) and allowed to stir overnight.
The mixture was diluted with 20 mL brine and 60 mL EtOAc. The
layers were separated and the aqueous layer was extracted with 20
mL EtOAc. The combined organic phases were washed with sat
NaHCO.sub.3 and brine then dried over MgSO4, filtered, and
concentrated. A white crystalline solid (84-G) was obtained and was
used in the next step without purification.
[1400] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.30-7.27 (m,
1H), 7.26 (s, 1H), 7.24-7.19 (m, 1H), 7.19-7.15 (m, 2H), 3.64-3.53
(m, 2H), 3.07 (s, 3H), 2.97-2.84 (m, 2H), 2.79-2.69 (m, 1H),
2.54-2.44 (m, 2H), 2.18-2.08 (m, 1H), 1.77-1.70 (m, 1H), 1.07 (s,
3H), 0.20 (s, 3H).
Procedure for Preparation of Compound 84-H
[1401] Compound 84-G (135.00 mg, 473.05 umol) was dissolved in
ethyl formate (701 mg, 9.46 mmol, 761.83 uL) and treated with
sodium methoxide (5.4 M, 350.41 uL). The mixture was diluted with
Toluene (6.76 mL) and stirred overnight. Water was added followed
by 1N HCl to adjust the pH to .about.5. Ethyl acetate was then
added and the layers were separated. The organic phase was washed
with brine then dried over sodium sulfate, filtered, and
concentrated. The material was then used in the next step without
further purification. The residue was dissolved in ethanol (2.26
mL) and water (113 uL) and hydroxylamine hydrochloride (330 mg,
4.75 mmol) was added. The solution was stirred under reflux for 2
hours. The solvent was removed to provide a solid. The solid was
then dissolved in sat. aq. sodium bicarbonate and ethyl acetate.
The layers were then separated and the organic layer was washed
with water then dried over sodium sulfate, filtered, and
concentrated. This material (84-H) was then used in the next step
without purification.
[1402] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 8.25 (s, 1H),
7.21-7.16 (m, 3H), 7.11 (m, 2H), 3.72-3.64 (m, 1H), 3.60 (m, 2H),
3.10 (s, 3H), 2.90 (d, J=16.48 Hz, 1H), 2.28-2.17 (m, 2H),
1.94-1.83 (m, 1H), 1.35 (s, 3H), 0.49 (s, 3H).
Procedure for Preparation of Compound 84-I
[1403] To a solution of compound 84-H (147.60 mg, 475.53 umol) in
ether (4.76 mL) under nitrogen was added sodium methoxide (4.37 M,
544.08 uL) at room temperature. The mixture was stirred at this
temperature for 2 hours then diluted with Ether then washed with 5%
HCl solution (2.times.). The aqueous layers were combined and
extracted with Ether (2.times.) and the combined organic layers
were washed with water then brine before being dried over sodium
sulfate then filtered and concentrated. The faintly yellow foam
(84-I) obtained appeared as an apparent mixture of Keto-Enol forms
by 1H NMR and was used in the next step in the sequence without
further purification. LCMS: (M+H: 311.2).
Procedure for Preparation of Compounds 84-Ent1 and 84-Ent2
[1404] Compound 84-I (147.60 mg, 475.53 umol) was dissolved in
Toluene (4.76 mL) and DDQ (118.74 mg, 523.08 umol) was added. The
mixture was heated to 100.degree. C. for 60 minutes then cooled to
room temperature. The reaction was then concentrated. The residue
was then purified by column chromatography (5-60% EtOAc/Heptane, 12
g column). The product was isolated as a faint red solid (122 mg,
62.5% yield) which was then separated by chiral SFC (Column:
CHIRALPAK IA 30.times.250 mm, 5 um; Method: 40% Methanol in CO2
[flow rate: 100 mL/min], ABPR 120 bar, MBPR 40 psi) to provide
84-Ent1 (38.9 mg, Rt=1.45 min) and 84-Ent2 (40.2 mg, Rt=1.91 min)
as off-white solids.
Data for 84-Ent-1
[1405] HPLC: (Purity: 100%)
[1406] LCMS: (M+H: 309.2)
[1407] SFC: (ee: 100%)
[1408] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.52 (s, 1H),
7.39-7.33 (m, 3H), 7.13-7.10 (m, 2H), 3.69 (dd, J=12.21, 6.10 Hz,
1H), 3.58 (td, J=12.21, 6.71 Hz, 1H), 3.13 (s, 3H), 2.49 (dd,
J=13.43, 2.44 Hz, 1H), 2.11 (tdd, J=13.43, 13.43, 11.60, 7.33 Hz,
1H), 1.84 (ddd, J=13.89, 6.56, 2.14 Hz, 1H), 1.21 (s, 3H), 0.60 (s,
3H).
Data for 84-Ent-2
[1409] HPLC: (Purity: 99%)
[1410] LCMS: (M+H: 309.2)
[1411] SFC: (ee: 100%)
[1412] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.52 (s, 1H),
7.39-7.33 (m, 3H), 7.13-7.10 (m, 2H), 3.69 (dd, J=12.21, 6.10 Hz,
1H), 3.58 (td, J=12.21, 6.71 Hz, 1H), 3.13 (s, 3H), 2.49 (dd,
J=13.43, 2.44 Hz, 1H), 2.11 (tdd, J=13.43, 13.43, 11.60, 7.33 Hz,
1H), 1.84 (ddd, J=13.89, 6.56, 2.14 Hz, 1H), 1.21 (s, 3H), 0.60 (s,
3H).
Example 68: Synthesis of Compounds 85-Ent1 and 85-Ent2
##STR00108##
[1413] Preparation of Compound 85-A
[1414] To a solution of compound 60-G (1.06 g, 4.12 mmol, 1 eq.) in
THF (12 mL) was added ethylene glycol (5.1 g, 82.4 mmol, 20 eq.).
Then BF.sub.3/OEt.sub.2 (292 mg, 2.06 mmol, 0.5 eq.) was added. The
reaction mixture was stirred at 10-20.degree. C. for 16 hours. LCMS
showed that the starting material was consumed completely and the
desired product was detected. The mixture was quenched by water (25
mL) and extracted with EtOAc (25 mL.times.3). The combined organic
layer was dried over anhydrous Na.sub.2SO.sub.4, filtered,
concentrated under reduced pressure to give the residue, which was
purified by column chromatography (PE/EtOAc=10:1 to 1:1) to give
compound 85-A (900 mg, 72% yield) as a yellow oil.
[1415] LCMS: (M+H: 302.1).
[1416] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.62 (d, J=7.50
Hz, 2H), 7.26-7.33 (m, 2H), 7.18-7.26 (m, 1H), 5.70 (br s, 1H),
3.95 (s, 2H), 3.74 (s, 2H), 3.17 (tt, J=4.38, 8.52 Hz, 1H),
2.88-3.02 (m, 1H), 2.48-2.64 (m, 1H), 2.24-2.32 (m, 1H), 2.11-2.17
(m, 3H), 1.91-2.02 (m, 1H), 1.61 (td, J=3.34, 13.62 Hz, 1H),
1.23-1.34 (m, 1H), 0.99 (d, J=6.62 Hz, 3H).
Preparation of Compound 85-B
[1417] To a solution of compound 85-A (700 mg, 2.33 mmol, 1.0 eq.)
in DMF (10 mL) was added NaH (186 mg, 4.66 mmol, 2.0 eq.) at
0.degree. C. and stirred at 15.degree. C. for 0.5 hour. Then
1-bromo-2-methoxyethane (484 mg, 3.49 mmol, 1.5 eq.) was added. The
mixture was stirred at 20.degree. C. for 2 hours. LCMS showed that
the starting material was consumed completely and the desired
product was detected. The reaction mixture was diluted with EtOAc
(50 mL). Then Sat. NaHCO.sub.3 (50 mL) and extracted with EtOAc (50
mL.times.3). The combined organic layer was washed with brine (100
mL) and dried over anhydrous Na.sub.2SO.sub.4, filtered,
concentrated under reduced pressure to give the residue, which was
purified by column chromatography (PE/EtOAc=20:1 to 3:1) to give
compound 85-B (850 mg, 88% yield) as a light yellow solid.
[1418] LCMS: (M+H: 360.1).
Preparation of Compound 85-C
[1419] To a solution of compound 85-B (800 mg, 1.90 mmol, 1.0 eq.)
in THF (anhydrous, 20 mL) was added HCl (9 mL, 9.04 mmol, 5 eq., 1
M in water). The solution was stirred at 20.degree. C. for 12
hours. LCMS showed that the starting material was consumed
completely and the desired product was detected. The mixture was
added Sat. NH.sub.4HCO.sub.3 (20 mL). The residue was extracted
with EtOAc (20 mL.times.3). The combined organic layers were dried
over Na.sub.2SO.sub.4, filtered and concentrated to give the crude
compound 85-C, which was purified by column chromatography
(PE/EtOAc=20:1 to 1:1) to give compound 85-C (310 mg, 44% yield) as
a colorless oil.
[1420] LCMS: (M+CH.sub.3CN: 346.1).
[1421] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.61 (d, J=7.02
Hz, 2H), 7.33-7.41 (m, 2H), 7.31 (d, J=7.02 Hz, 1H), 3.58-3.65 (m,
1H), 3.39-3.53 (m, 3H), 3.28-3.38 (m, 2H), 3.25 (s, 3H), 2.80-2.90
(m, 1H), 2.64-2.73 (m, 1H), 1.96-2.40 (m, 6H), 1.16 (d, J=6.58 Hz,
3H)
Preparation of Compound 85-D
[1422] Na (79 mg, 3.45 mmol, 3.5 eq.) was added to MeOH (3.5 mL) in
many portions at 25.degree. C. and stirring until Na was
disappeared, and then a mixture of compound 85-C (310 mg, 0.98
mmol, 1.0 eq.) and HCOOEt (5 mL) were added to the above solution
dropwise over 5 min under N.sub.2. The reaction mixture was stirred
at 20.degree. C. for 12 hours. LCMS showed that the starting
material was consumed completely and the desired product was
detected. The mixture was added Sat. NH.sub.4Cl (25 mL) and
extracted with EtOAc (30 mL.times.3). The combined organic layer
was washed with brine (30 mL.times.3), dried over anhydrous
Na.sub.2SO.sub.4, filtered, concentrated under reduced pressure to
supply compound 85-D (290 mg, 85% yield) as yellow oil.
[1423] LCMS: 19437-100-1C (M+H: 344.1).
Preparation of Compound 85-E
[1424] To a solution of compound 85-D (290 mg, 0.84 mmol, 1.0 eq.)
in EtOH (5 mL) and H.sub.2O (1 mL) was added hydrochloride
hydroxylamine (64 mg, 0.93 mmol, 1.1 eq.). After addition the
mixture was stirred at 50.degree. C. for 16 h. LCMS showed that the
starting material was consumed completely and the desired product
was detected. The mixture was diluted with NaHCO.sub.3 (20 mL), and
extracted with EtOAc (30 mL.times.3). The combined organic layer
dried over anhydrous Na.sub.2SO.sub.4, filtered, and concentrated
under reduced pressure to give compound 85-E (200 mg, 69% yield) as
a yellow gum.
[1425] LCMS: (M+H: 341.1)
[1426] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.23 (s, 1H),
7.19-7.24 (m, 3H), 7.09-7.16 (m, 2H), 3.87-3.95 (m, 1H), 3.72-3.80
(m, 2H), 3.53-3.70 (m, 3H), 3.43 (s, 3H), 3.38-3.41 (m, 1H), 3.01
(dd, J=2.84, 16.88 Hz, 1H), 2.26 (br d, J=7.02 Hz, 1H), 1.84-1.96
(m, 2H), 1.32-1.37 (m, 3H).
Preparation of Compound 85-E
[1427] Na (68 mg, 2.94 mmol, 5 eq.) was added MeOH (1.5 mL) in many
portions at 25.degree. C. and stirring until Na was disappeared.
Then compound 85-D (200 mg, 0.59 mmol, 1.0 eq.) was added. The
reaction mixture was stirred at 20.degree. C. for 16 hours. TLC
(PE/EA=1:1) showed the starting materials were consumed completely
and a new spot was observed. The mixture quenched by Sat.
NH.sub.4Cl (15 mL) and extracted with EtOAc (15 mL.times.3). The
combined organic layer was washed with brine (20 mL.times.2), dried
over anhydrous Na.sub.2SO.sub.4, filtered, concentrated under
reduced pressure to supply compound 85-E (220 mg, crude) as yellow
gum.
[1428] LCMS: (M+H: 341.1).
Preparation of Compounds 85-Ent1 and 85-Ent2
[1429] To a solution of compound 85-E (200 mg, 0.59 mmol, 1.0 eq.)
in Tol. (3 mL) was added DDQ (170 mg, 0.71 mmol, 1.2 eq.) slowly.
The mixture was stirred at 80.degree. C. for 2 hours. LCMS showed
that the starting material was consumed completely and the desired
product was detected. The mixture was diluted with water (30 mL),
and extracted with EtOAc (30 mL.times.3). The combined organic
layers was dried over anhydrous Na.sub.2SO.sub.4, filtered, and
concentrated under reduced pressure. The residue was purified by
prep-HPLC (Column: Xtimate C18 150*25 mm*5 um; water (10 mM
NH.sub.4HCO.sub.3)-ACN, FlowRate: 25 mL/min) to give the racemate
product (89 mg) as a colorless oil. The racemate was further
separated by prep-SFC (Column: AD (250 mm*30 mm; 10 um); Condition:
Neu-EtOH; FlowRate: 60 mL/min) to give the enantiomer 85-Ent1 (42
mg, 21% yield) as light yellow solid and enantiomer 85-Ent2 (43 mg,
21.5% yield) as white solid.
Spectra for 85-Ent1:
[1430] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.45 (s, 1H),
7.34-7.44 (m, 3H), 7.19-7.24 (m, 2H), 3.93-3.98 (m, 1H), 3.74-3.82
(m, 2H), 3.56-3.71 (m, 2H), 3.45 (s, 3H), 3.37-3.43 (m, 1H),
2.35-2.47 (m, 2H), 1.86 (dd, J=7.20, 13.56 Hz, 1H), 1.64-1.76 (m,
1H), 1.15 (d, J=6.24 Hz, 3H)
[1431] HPLC: (Purity: 100%)
[1432] SFC: (Rt=3.999 min, ee: 100%)
[1433] LCMS: (M+H: 399.0)
Spectra for 85-Ent2:
[1434] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.45 (s, 1H),
7.34-7.44 (m, 3H), 7.19-7.24 (m, 2H), 3.93-3.98 (m, 1H), 3.74-3.82
(m, 2H), 3.56-3.71 (m, 2H), 3.45 (s, 3H), 3.37-3.43 (m, 1H),
2.35-2.47 (m, 2H), 1.86 (dd, J=7.20, 13.56 Hz, 1H), 1.64-1.76 (m,
1H), 1.15 (d, J=6.24 Hz, 3H)
[1435] HPLC: (Purity: 100%)
[1436] SFC: (Rt=5.583 min, ee: 99.94%)
[1437] LCMS: (M+H: 399.0)
Example 69: Synthesis of Compounds 86-Ent1 and 86-Ent2
##STR00109##
[1438] Procedure for Preparation of Compound AC-11
[1439] Sodium hydride (25.36 mg, 634.10 umol, 60% purity) was added
to an oven dried vial under nitrogen and dissolved in THF (1.59 mL)
then cooled to 0.degree. C. Compound 84-F (100.00 mg, 317.05 umol)
was added and the mixture was warmed to room temperature and
stirred for 2 hours. 1-bromo-2-methoxy-ethane (83.73 mg, 602.40
umol, 56.57 uL) was then added and the mixture was stirred
overnight. The mixture was then heated to 60.degree. C. for 6
hours. Sodium iodide (95.05 mg, 634.10 umol) was added and the
mixture was stirred at 60.degree. C. overnight. The reaction was
then cooled to room temperature, diluted with water, extracted with
EtOAc, and the combined organic layers were dried over sodium
sulfate, filtered, and concentrated. The residue was purified by
flash chromatography (10-75% EtOAc/Heptanes, Rf.about.0.2 in 50%
EtOAc/heptanes) to provide a 100 mg (84% yield) of a yellow oil
which contained an inseparable, unidentified byproduct. This
mixture was used in the next step without further purification. The
residue (100.00 mg, 267.75 umol) was then dissolved in THF (1.34
mL) and treated with HCl (1 M, 669.37 uL) and allowed to stir
overnight. Additional HCl (1 M, 669.37 uL) was added and the
mixture was heated to 75.degree. C. for 3 hrs. The mixture was then
cooled to room temperature and diluted with 20 mL brine and 60 mL
EtOAc. The layers were separated and the aqueous layer was
extracted with 20 mL EtOAc. The combined organic phases were washed
with sat NaHCO.sub.3 and brine, dried over MgSO.sub.4, filtered,
and concentrated. A white solid was isolated (86-A) and was used
without further purification.
[1440] LCMS: (M+H: 330.2)
Procedure for Preparation of Compound 86-B
[1441] Compound 86-A (88.00 mg, 267.13 umol) was dissolved in ethyl
formate (395.78 mg, 5.34 mmol, 430.20 uL) and treated with sodium
methoxide (5.4 M in methanol, 197.87 uL). The mixture was diluted
with Toluene (3.82 mL) and stirred overnight. Water was then added
followed by 1N HCl to adjust the pH to .about.5. Ethyl acetate was
then added and the layers were separated. The organic phase was
washed with brine then dried over sodium sulfate, filtered, and
concentrated to provide an oil. The material was then used in the
next step without further purification. LCMS: (M+H: 358.2). The oil
previously obtained (95.50 mg, 267.18 umol) was dissolved in
ethanol (1.27 mL) and water (63.61 uL) was added hydroxylamine
hydrochloride (185.66 mg, 2.67 mmol). The solution was stirred at
reflux for 2 hours. The solvent was then removed to provide a
solid. The solid was then dissolved in saturated aqueous sodium
bicarbonate and ethyl acetate. The layers were then separated and
the organic layer was washed with water then dried over sodium
sulfate, filtered, and concentrated. This material (86-B) was then
used in the next step without purification.
[1442] LCMS: (M+H: 355.2)
Procedure for Preparation of Compound 86-C
[1443] To a solution of 86-B (94.70 mg, 267.18 umol) in ether (2.67
mL) under nitrogen was added sodium methoxide (4.37 M, 305.70 uL)
at room temperature. The mixture was stirred at this temperature
for 2 hours then diluted with Ether then washed with 5% HCl
solution (2.times.). The aqueous layers were combined and extracted
with Ether (2.times.) and the combined organic layers were washed
with water then brine before being dried over sodium sulfate then
filtered and concentrated. The faintly yellow foam (86-C) was used
in the next step in the sequence without further purification.
[1444] LCMS: (M+H: 355.2)
Procedure for Preparation of Compounds 86-Ent1 and 86-Ent2
[1445] Compound 86-C (94.70 mg, 267.18 umol) was dissolved in
toluene (2.67 mL) and DDQ (66.72 mg, 293.90 umol) was added. The
mixture was heated to 100.degree. C. for 90 minutes then cooled to
room temperature. The reaction was filtered and concentrated. The
residue was then purified by column chromatography (10-75%
EtOAc/Heptane, 12 g column). The product was isolated as an oil
which was then separated by SFC (Column: CHIRALPAK IG 30.times.250
mm, Sum. Method: 40% Methanol in CO2 [flow rate: 100 mL/min], ABPR
120 bar, MBPR 40 psi) to provide 86-Ent-1 (14.8 mg, Rt=2.49 min)
and 86-Ent-2 (14.3 mg, Rt=4.09 min) as off-white solids.
Data for 86-Ent1
[1446] HPLC: (Purity: 98%)
[1447] LCMS: (M+H: 353.2)
[1448] SFC: (ee: 100%)
[1449] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. 8.52 (s, 1H),
7.39-7.33 (m, 3H), 7.23-7.19 (m, 2H), 3.99-3.87 (m, 2H), 3.78-3.69
(m, 1H), 3.68-3.59 (m, 2H), 3.46-3.41 (m, 3H), 3.35 (ddd, J=3.7,
7.9, 14.0 Hz, 1H), 2.49 (dd, J=2.1, 13.1 Hz, 1H), 2.12 (ddt, J=7.3,
12.2, 13.4 Hz, 1H), 1.79 (ddd, J=2.1, 6.7, 13.7 Hz, 1H), 1.20 (s,
3H), 0.59 (s, 3H).
Data for 86-Ent2
[1450] HPLC: (Purity: 98%)
[1451] LCMS: (M+H: 353.2)
[1452] SFC: (ee: 100%)
[1453] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.52 (s, 1H),
7.38-7.33 (m, 3H), 7.23-7.20 (m, 2H), 4.00-3.87 (m, 2H), 3.76-3.70
(m, 1H), 3.68-3.59 (m, 2H), 3.46-3.41 (m, 3H), 3.35 (ddd, J=3.7,
7.9, 14.0 Hz, 1H), 2.49 (dd, J=2.4, 13.4 Hz, 1H), 2.12 (ddt, J=7.3,
12.2, 13.4 Hz, 1H), 1.79 (ddd, J=2.1, 6.6, 13.9 Hz, 1H), 1.20 (s,
3H), 0.59 (s, 3H).
Example 70: Synthesis of Compounds 87-Ent1 and 87-Ent2
##STR00110##
[1455] Compounds 87-Ent1 and 87-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for Synthesis of 87-A.
[1456] NaH (99 mg, 2.48 mmol, 2.0 eq) was added to a solution of
compound 85-A (400 mg, 1.24 mmol, 1.0 eq) in DMF 10 mL at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
Subsequently, 2-fluorobenzylchloride (352 mg, 1.87 mmol, 1.5 eq)
was added to the mixture. The resulting mixture was stirred at
20.degree. C. for 14 hours. LCMS showed compound 85-A was consumed
completely. The mixture was poured into water 50 mL, and filtered.
The cake was dried to get compound 87-A (500 mg, 91.9% in yield) as
yellow solid
[1457] LCMS: (M+H: 410.1).
[1458] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 7.56-7.58
(m, 2H), 7.30-7.32 (m, 2H), 7.25-7.27 (m, 2H), 7.01-7.04 (m, 3H),
4.64 (d, J=15.6 Hz, 1H), 4.50 (d, J=14.8 Hz, 1H), 3.93-3.97 (m,
4H), 3.17-3.19 (m, 1H), 2.97-2.99 (m, 1H), 2.53-2.57 (m, 1H),
2.16-2.19 (m, 3H), 2.05-2.15 (m, 2H), 1.62-1.66 (m, 1H), 1.21-1.25
(m, 1H), 0.97 (d, J=6.4 Hz, 3H), 0.86-0.88 (m, 1H).
Procedure for the Purification and Chiral Separation of 87-Ent1 and
87-Ent2:
[1459] The crude reaction mixture was purified by prep-TLC
PE/EtOAc=2/1 to get a racemic compound, which was further purified
by SFC (column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to
give 87-Ent1 (67 mg, 42.1% in yield) and 87-Ent2 (67 mg, 42.1% in
yield) as a white solid.
Spectra for 87-Ent1
[1460] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.47 (s, 1H),
7.49-7.51 (m, 1H), 7.34-7.36 (m, 4H), 7.09-7.19 (m, 2H), 7.06-7.08
(m, 2H), 4.88 (d, J=14.4 Hz, 1H), 4.74 (d, J=14.0 Hz, 1H),
3.51-3.63 (m, 2H), 2.39-2.43 (m, 2H), 1.83-1.89 (m, 1H), 1.65-1.66
(m, 1H), 1.13 (d, J=6.4 Hz, 3H).
[1461] HPLC: (Purity: 100%)
[1462] SFC: (Column: Chiralpak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
99.82%)
[1463] LCMS: (M+H: 389.1).
Spectra for 87-Ent2
[1464] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.47 (s, 1H),
7.49-7.51 (m, 1H), 7.35-7.36 (m, 4H), 7.12-7.19 (m, 2H), 7.08-7.09
(m, 2H), 4.88 (d, J=14.4 Hz, 1H), 4.74 (d, J=14.4 Hz, 1H),
3.51-3.63 (m, 2H), 2.39-2.43 (m, 2H), 1.84-1.89 (m, 1H), 1.63-1.65
(m, 1H), 1.13 (d, J=6.4 Hz, 3H).
[1465] HPLC: (Purity: 100%).
[1466] SFC: (Column: Chiralpak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
98.96%).
[1467] LCMS: (M+H: 389.0).
Example 71: Synthesis of Compounds 88-Ent1 and 88-Ent2
##STR00111##
[1469] Compounds 88-Ent1 and 88-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 88-A:
[1470] NaH (120 mg, 3.0 mmol, 2.0 eq) was added to a solution of
compound 85-A (450 mg, 1.50 mmol, 1.0 eq) in DMF 10 mL at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
Subsequently, 2,2-difluoroethyl trifluoromethanesulfonate (480 mg,
2.3 mmol, 1.5 eq) was added to the mixture. The resulting mixture
was stirred at 20.degree. C. for 14 hours. LCMS showed compound
85-A was consumed completely. The mixture was poured into water 50
mL, and filtered. The cake was dried to get compound 88-A (480 mg,
72.0% in yield) as yellow solid.
[1471] .sup.1HNMR: (400 MHz, Methanol-d.sub.4) .delta.: 7.55-7.57
(m, 2H), 7.32-7.36 (m, 2H), 7.26-7.38 (m, 1H), 5.72-6.02 (m, 1H),
3.93-3.96 (m, 4H), 3.72-3.76 (m, 1H), 3.69-3.70 (m, 1H), 3.27-3.29
(m, 1H), 3.08-3.11 (m, 1H), 2.56-2.58 (m, 1H), 2.13-2.15 (m, 1H),
2.02-2.11 (m, 2H), 1.97-1.99 (m, 2H), 1.62-1.65 (m, 1H), 1.23-1.29
(m, 3H), 0.98 (d, J=6.8 Hz, 3H), 0.86-0.88 (m, 1H).
Procedure for the Purification and Chiral Separation of Compounds
88-Ent1 and 88-Ent2:
[1472] The crude reaction was purified by prep-TLC (PE/EtOAc=2/1)
to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to give
88-Ent1 (48 mg, 56.8% in yield) and 88-Ent2 (48 mg, 56.8% in yield)
as a white solid.
Spectra for 88-Ent1
[1473] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.38 (s, 1H),
7.39-7.43 (m, 3H), 7.13-7.16 (m, 2H), 6.02-6.32 (m, 1H), 3.90-3.99
(m, 1H), 3.75-3.80 (m, 1H), 3.62-3.68 (m, 2H), 2.43-2.45 (m, 2H),
1.90-1.95 (m, 1H), 1.76-1.78 (m, 1H), 1.16 (d, J=6.4 Hz, 3H).
[1474] HPLC: (Purity: 100%)
[1475] SFC: (Column: Chiralpak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
99.58%)
[1476] LCMS: (M+H: 345.1).
Spectra for 88-Ent2
[1477] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.34 (s, 1H),
7.41-7.43 (m, 3H), 7.13-7.16 (m, 2H), 6.02-6.32 (m, 1H), 3.99-4.02
(m, 1H), 3.70-3.77 (m, 1H), 3.62-3.68 (m, 2H), 2.43-2.45 (m, 2H),
1.90-1.95 (m, 1H), 1.74-1.79 (m, 1H), 1.16 (d, J=6.4 Hz, 3H).
[1478] HPLC: (Purity: 100%).
[1479] SFC: (Column: Chiralpak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 35.degree. C. (ee:
99.30%).
[1480] LCMS: (M+H: 345.1).
Example 72: Synthesis of 89-Ent1 and 89-Ent2
##STR00112##
[1482] Compounds 89-Ent1 and 89-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 89-A:
[1483] To a solution of compound 85-A (600 mg, 2 mmol, 1.0 eq) and
4-fluorobenzyl chloride (576 mg, 4 mmol, 1.0 eq) in DMF (10 mL) was
added NaH (160 mg, 4 mmol, 2.0 eq) portionwise at 10-18.degree. C.
The reaction mixture was stirred at 10-18.degree. C. for 6 h. LCMS
showed the compound 85-A was consumed completely. The reaction
mixture was quenched with saturated NH.sub.4Cl (100 mL) and
extracted with MTBE (50 mL.times.2). The combined organic layer was
washed with brine (100 mL.times.2), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give compound 89-A (645 mg, yield:
71%) as a white solid, which was used for the next step without
further purification.
[1484] .sup.1H NMR: (400 MHz, CHLOROFORM-d) .delta.: 7.57 (d, J=7.4
Hz, 2H), 7.34-7.40 (m, 1H), 7.21-7.28 (m, 1H), 7.03-7.15 (m, 3H),
6.90-6.99 (m, 2H), 4.49-4.63 (m, 2H), 4.39 (d, J=14.8 Hz, 1H),
3.88-4.00 (m, 4H), 3.06-3.17 (m, 1H), 2.88 (td, J=8.2, 13.2 Hz,
1H), 2.49-2.61 (m, 1H), 1.87-2.22 (m, 5H), 1.64 (td, J=3.4, 13.6
Hz, 1H), 0.96 (d, J=6.6 Hz, 3H).
Procedure for the Purification and Chiral Separation of Compounds
89-Ent1 and 89-Ent2:
[1485] The final DDQ oxidation mixture was concentrated to give the
crude and diluted with EtOAc (50 ml). The mixture was washed
saturated NaHCO.sub.3 (50 mL.times.3), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give the crude, which was purified by
prep-TLC (EtOAc/PE=1:1) to give 220 mg, yield: 62% as a racemic
mixture. The racemic mixture was further separated by SFC (column:
AD (250 mm*30 mm, 5 um) condition: Neu-MeOH) to give 89-Ent1 (35
mg, yield: 16% Rt=3.355 min) and 89-Ent2 (36 mg, yield: 16%,
Rt=3.694 min). Both were obtained as pale white solids.
Spectra for 89-Ent1
[1486] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.47 (s, 1H),
7.31-7.40 (m, 5H), 7.01-7.14 (m, 4H), 4.86 (d, J=14.2 Hz, 1H), 4.52
(d, J=14.4 Hz, 1H), 3.38-3.56 (m, 2H), 2.33-2.43 (m, 2H), 1.85 (br
dd, J=7.4, 13.4 Hz, 1H), 1.60-1.69 (m, 1H), 1.12 (d, J=6.2 Hz,
3H).
[1487] SFC: (ee: 98.2%)
[1488] HPLC: (Purity: 100%)
[1489] LCMS: (M+H=389.1)
Spectra for 89-Ent2
[1490] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.47 (s, 1H),
7.31-7.40 (m, 5H), 7.01-7.14 (m, 4H), 4.86 (d, J=14.2 Hz, 1H), 4.52
(d, J=14.4 Hz, 1H), 3.38-3.56 (m, 2H), 2.33-2.43 (m, 2H), 1.85 (br
dd, J=7.4, 13.4 Hz, 1H), 1.60-1.69 (m, 1H), 1.12 (d, J=6.2 Hz,
3H).
[1491] SFC: (ee: 97.2%)
[1492] HPLC: (Purity: 100%)
[1493] LCMS: (M+H=389.1)
Example 73: Synthesis of 90-Ent1 and 90-Ent2
##STR00113##
[1495] Compounds 90-Ent1 and 90-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 90-A:
[1496] To a solution of compound 85-A (600 mg, 2 mmol, 1.0 eq) and
NaH (160 mg, 4 mmol, 2.0 eq) in DMF (10 mL) was added
(bromomethyl)cyclopropane (536 mg, 4 mmol, 1.0 eq) in one portion
at 10-18.degree. C. The reaction mixture was stirred at
10-18.degree. C. for 18 hs. LCMS showed the compound 85-A was
consumed completely. The reaction mixture was quenched with
saturated NH.sub.4Cl (100 mL) and extracted with MTBE (50
mL.times.2). The combined organic layer was washed with brine (100
mL.times.3), dried over Na.sub.2SO.sub.4, filtered and concentrated
to give compound 90-A (620 mg, yield: 71%) as a white solid, which
was used for the next step without further purification.
[1497] .sup.1H NMR: (400 MHz, METHANOL-d4) .delta.: 7.37-7.50 (m,
2H), 7.14-7.20 (m, 2H), 7.06-7.12 (m, 1H), 3.67-3.87 (m, 4H),
3.16-3.22 (m, 1H), 3.10 (dd, J=2.2, 9.2 Hz, 1H), 2.82-2.96 (m, 2H),
2.39 (qd, J=6.4, 12.29 Hz, 1H), 2.02-2.12 (m, 1H), 1.91-2.00 (m,
2H), 1.72-1.85 (m, 2H), 1.47 (td, J=3.2, 13.6 Hz, 1H), 1.06-1.11
(m, 1H), 0.82 (d, J=6.4 Hz, 3H), 0.67-0.78 (m, 2H), 0.17-0.30 (m,
2H), -0.08-0.05 (m, 2H)
Procedure for the Purification and Chiral Separation of Compounds
90-Ent1 and 90-Ent2:
[1498] The final DDQ oxidation mixture was concentrated to give the
crude and diluted with EtOAc (50 ml). The mixture was washed
saturated NaHCO.sub.3 (50 ml.times.3), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give the crude, which was purified by
prep-TLC (EtOAc/PE=1:1) to give as a racemic mixture. The racemic
mixture was further separated by SFC (column: AD (250 mm*30 mm, 5
um) condition: Neu-MeOH) to give 90-Ent1 (19425-102-1, 72 mg,
yield: 34% Rt=3.336 min) and 90-Ent2 (19425-102-2, 65 mg, yield:
30.9%, Rt=3.934 min). Bath as pale white solid.
Spectra for 90-Ent1
[1499] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.45 (s, 1H),
7.32-7.44 (m, 3H), 7.19 (dd, J=1.6, 8.0 Hz, 2H), 3.67-3.77 (m, 1H),
3.53-3.65 (m, 2H), 3.27 (dd, J=6.8, 13.8 Hz, 1H), 2.36-2.49 (m,
2H), 1.90 (br dd, J=7.2, 13.8 Hz, 1H), 1.63-1.74 (m, 1H), 1.06-1.24
(m, 4H), 0.59-0.71 (m, 2H), 0.31-0.42 (m, 2H).
[1500] SFC: (ee: 99.1%)
[1501] HPLC: (Purity: 95.4%)
[1502] LCMS: (M+H=335.0)
Spectra for 90-Ent2
[1503] .sup.1H NMR (400 MHz, METHANOL-d4) .delta.: 8.45 (s, 1H),
7.32-7.44 (m, 3H), 7.19 (dd, J=1.6, 8.0 Hz, 2H), 3.67-3.77 (m, 1H),
3.53-3.65 (m, 2H), 3.27 (dd, J=6.8, 13.8 Hz, 1H), 2.36-2.49 (m,
2H), 1.90 (br dd, J=7.2, 13.8 Hz, 1H), 1.63-1.74 (m, 1H), 1.06-1.24
(m, 4H), 0.59-0.71 (m, 2H), 0.31-0.42 (m, 2H).
[1504] SFC: (ee: 99.5%)
[1505] HPLC: (Purity: 98.4%)
[1506] LCMS: (M+H=335.0)
Example 74: Synthesis of 91-Ent1 and 91-Ent2
##STR00114##
[1508] Compounds 91-Ent1 and 91-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 91-A:
[1509] To a suspension of compound 85-A (800 mg, 2.65 mmol, 1.0
eq.) in anhydrous DMF (10 mL) was added 60% NaH (530 mg, 13.25
mmol, 5.0 eq.) under N.sub.2 protection. The reaction mixture was
stirred for 20 minutes, then isopropyl bromide (1.6 g, 13.25 mmol,
5.0 eq) was added. The resulting mixture was stirred for 40 hours
at 9-15.degree. C. TLC (petroleum ether/EtOAc=1/1) showed that a
new spot was detected. The reaction mixture was quenched with
saturated aqueous NH.sub.4Cl (100 mL) extracted with EtOAc (80
mL.times.2). The combined organic layers were washed with brine
(100 mL), dried over anhydrous sodium sulfate, filtered and
concentrated under reduced pressure. The crude was purified by
combi flash (5% to 30% EtOAc in PE) to give the compound 91-A (500
mg, 55% yield) as a white solid.
[1510] LCMS: (M+H: 344.2)
[1511] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 7.53-7.55 (m, 2H),
7.25-7.29 (m, 2H), 7.18-7.22 (m, 1H), 4.78-4.85 (m, 1H), 3.91-3.98
(m, 4H), 3.02-3.08 (m, 1H), 2.53-2.63 (m, 2H), 1.78-2.26 (m, 5H),
1.57-1.62 (m, 1H), 1.20-1.31 (m, 1H), 1.05 (d, J=6.8 Hz, 3H), 0.97
(d, J=6.8 Hz, 3H), 0.84 (d, J=6.8 Hz, 3H).
Procedure for the Purification and Chiral Separation of Compounds
91-Ent1 and 91-Ent2:
[1512] The crude DDQ reaction mixture was concentrated under
reduced pressure, the residue was diluted with H.sub.2O (15 mL) and
saturated aqueous NaHCO.sub.3 (20 mL), extracted with EtOAc (40
mL.times.3). The combined organic layers were washed with brine (50
mL), dried over anhydrous sodium sulfate, filtered and concentrated
under reduced pressure. The crude was purified by combi flash (5%
to 40% EtOAc in PE) to give the desired compound 200 mg, which was
further purified by prep-SFC (Column: AD (250 mm*30 mm; 10 um);
Condition: Neu-EtOH; 30%) and re-purified by prep-HPLC (Column:
Xtimate C18 150 mm*25 mm; 5 um); Condition: Water (10 mM
NH.sub.4HCO.sub.3)-ACN; 35%-65%) to give the desired compound
91-Ent1 (38 mg, 28% yield) and 91-Ent2 (36 mg, 28% yield) as a
white solid.
Spectra of 91-Ent1:
[1513] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.45 (s, 1H),
7.37-7.40 (m, 3H), 7.12-7.14 (m, 2H), 4.95-5.04 (m, 1H), 3.35-3.50
(m, 2H), 2.30-2.48 (m, 2H), 1.90-1.95 (m, 1H), 1.62-1.71 (m, 1H),
1.32 (d, J=6.8 Hz, 3H), 1.24 (d, J=6.8 Hz, 3H), 1.15 (d, J=6.4 Hz,
3H).
[1514] HPLC: (Purity: 100%)
[1515] SFC: (Rt=3.337 min, ee: 99.86%)
[1516] LCMS: (M+H: 323.0)
Spectra of 91-Ent2:
[1517] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 8.45 (s, 1H),
7.37-7.40 (m, 3H), 7.12-7.14 (m, 2H), 4.93-5.02 (m, 1H), 3.35-3.50
(m, 2H), 2.30-2.48 (m, 2H), 1.90-1.95 (m, 1H), 1.60-1.71 (m, 1H),
1.32 (d, J=6.8 Hz, 3H), 1.24 (d, J=7.2 Hz, 3H), 1.15 (d, J=6.8 Hz,
3H).
[1518] HPLC: (Purity: 100%)
[1519] SFC: (Rt=4.232 min, ee: 99.80%)
[1520] LCMS: (M+Na: 345.1)
Example 75: Synthesis of Compounds 92-Ent1 and 92-Ent2
##STR00115##
[1522] Compounds 92-Ent1 and 92-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 92-A:
[1523] A mixture of compound 60-E (500 mg) in Py/THF (1 mL/5 mL)
was added Pd/C (0.13 g, 10%) under N.sub.2 atmosphere. The mixture
was stirred at 35.degree. C. for 20 hours under H.sub.2 atmosphere.
LCMS showed the starting material was almost consumed and the
desired product was observed. The mixture was filtered and the
filtrated was diluted with H.sub.2O (10 mL) and extracted with
EtOAc (20 mL.times.3). The combined organic layer was dried over
Na.sub.2SO.sub.4 and filtered. The filtrated was concentrated to
give the compound 92-A (380 mg, 77% yield) as a yellow solid.
[1524] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.=7.61-7.69 (m, 2H),
7.32-7.40 (m, 3H), 7.07 (d, J=8.8 Hz, 2H), 6.81 (d, J=8.2 Hz, 2H),
4.45-4.57 (m, 2H), 3.80 (s, 3H), 3.00-3.19 (m, 2H), 2.74-2.94 (m,
2H), 2.25-2.41 (m, 3H), 2.08-2.20 (m, 2H), 1.98-2.05 (m, 1H), 1.16
(d, J=6.8 Hz, 3H).
Procedure for the Purification and Chiral Separation of Compounds
92-Ent1 and 92-Ent2:
[1525] The mixture was diluted with H.sub.2O (20 mL) and extracted
with EtOAc (25 mL.times.3). The combined organic layer was dried
over Na.sub.2SO.sub.4 and filtered. The filtrate was concentrated
to give the residue, which was purified by prep-TLC (PE:EtOAc=5:1)
to give racemic product (40 mg, 66.7% yield) as a solid. The
racemate was separated by SFC (Column: AD (250 mm*30 mm, 5 um)
Mobile phase: Neu-MeOH; Flow Rate: 60 mL/min) to supply 92-Ent1 (5
mg, 12.5% yield, Rt=3.754 min) and 92-Ent2 (5 mg, 12.5% yield,
Rt=5.122 min) as white solid.
Spectra of 92-Ent1:
[1526] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.=8.52 (s, 1H),
7.31-7.41 (m, 5H), 7.06-7.14 (m, 2H), 6.95-6.97 (m, 1H), 6.91-6.95
(m, 1H), 4.88 (d, J=14.2 Hz, 1H), 4.50 (d, J=14.2 Hz, 1H),
3.83-3.90 (m, 3H), 3.40-3.60 (m, 2H), 2.27-2.50 (m, 2H), 1.85 (m,
1H), 1.63-1.70 (m, 1H), 1.13 (d, J=6.4 Hz, 3H)
[1527] HPLC: (Purity: 99.1%)
[1528] SFC: (ee: 100%)
[1529] LCMS: (M+H: 401.0)
Spectra of 92-Ent1:
[1530] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.=8.52 (s, 1H),
7.30-7.41 (m, 5H), 7.10 (d, J=4.4 Hz, 2H), 6.95 (d, J=7.8 Hz, 2H),
4.88 (d, J=13.6 Hz, 1H), 4.50 (d, J=14.2 Hz, 1H), 3.86 (s, 3H),
3.40-3.59 (m, 2H), 2.40 (d, J=6.8 Hz, 2H), 1.79-1.93 (m, 1H),
1.60-1.71 (m, 1H), 1.14 (d, J=4.4 Hz, 3H)
[1531] HPLC: (Purity: 100%)
[1532] SFC: (ee: 99.3%)
[1533] LCMS: (M+H: 401.0)
Example 76: Synthesis of 93-Ent1 and 93-Ent2
##STR00116##
[1535] Compounds 93-Ent1 and 93-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 93-A:
[1536] To a suspension of NaH (60%, 150 mg, 3.75 mmol, 1.5 eq.) in
DMF (5 mL) was added compound 85-A (750 mg, 2.5 mmol, 1.0 eq.) at
16.degree. C. and stirred at 16.degree. C. for 1 hour. Then
3-fluorobenzyl bromide (570 mg, 3.0 mol, 1.2 eq.) was added at
16.degree. C. and stirred at 16.degree. C. for 16 hours. Then the
reaction solution was quenched by water (50 mL) and extracted by EA
(50 mL.times.3), the combined organic layer was washed by water and
brine, dried over Na.sub.2SO.sub.4. Evaporation of solvents
afforded a white solid 93-A (800 mg, crude).
[1537] LCMS: ([M+H]: 410.2)
Procedure for the Purification and Chiral Separation of Compounds
93-Ent1 and 93-Ent2:
[1538] Then completed DDQ reaction was diluted with EA (30 mL) and
washed by saturated NaHCO.sub.3 solution (15 mL), water (15
mL.times.3) and brine (10 mL), and dried over sodium sulphate. The
solution was concentrated under reduced pressure to afford a black
oil, which was purified by prep-TLC (PE/EA=2/1) to afford yellow
solid (170 mg). The product (racemate, 170 mg) was separated by SFC
(Column: AD 250 mm*30 mm, 10 um; Condition: MeOH--CO.sub.2, 40%) to
afford 93-Ent1 as a white solid (36 mg, yield=16%) and 93-Ent2 as a
white solid (30 mg, yield=13.6%).
Spectra for 93-Ent1
[1539] .sup.1H NMR: (METHANOL-d.sub.4, 400 MHz): .delta.=8.34 (s,
1H), 7.34-7.50 (m, 4H), 7.23 (d, J=7.7 Hz, 1H), 7.14-7.20 (m, 3H),
7.05-7.12 (m, 1H), 4.82 (d, J=14.3 Hz, 1H), 4.64 (d, J=14.6 Hz,
1H), 3.48-3.64 (m, 2H), 2.57 (td, J=13.1, 2.8 Hz, 1H), 2.33-2.43
(m, 1H), 1.86-1.96 (m, 1H), 1.53-1.68 (m, 1H), 1.08 (d, J=6.6 Hz,
3H).
[1540] LCMS: ([M+H]: 389.0).
[1541] HPLC: (purity: 95.97%).
[1542] SFC: (ee: 100%).
Spectra for 93-Ent2
[1543] .sup.1H NMR: (METHANOL-d.sub.4, 400 MHz): .delta.=8.34 (s,
1H), 7.34-7.50 (m, 4H), 7.23 (d, J=7.7 Hz, 1H), 7.14-7.20 (m, 3H),
7.05-7.12 (m, 1H), 4.82 (d, J=14.3 Hz, 1H), 4.64 (d, J=14.6 Hz,
1H), 3.48-3.64 (m, 2H), 2.57 (td, J=13.1, 2.8 Hz, 1H), 2.33-2.43
(m, 1H), 1.86-1.96 (m, 1H), 1.53-1.68 (m, 1H), 1.08 (d, J=6.6 Hz,
3H).
[1544] LCMS: ([M+Na]: 411.0).
[1545] HPLC: (purity: 100%).
[1546] SFC: (ee: 98.88%).
Example 77: Synthesis of 94-Ent1 and 94-Ent2
##STR00117##
[1548] Compounds 94-Ent1 and 94-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 94-A:
[1549] NaH (79 mg, 1.98 mmol, 2.0 eq) was added to a solution of
compound 85-A (300 mg, 0.99 mmol, 1.0 eq) in DMF 4 mL at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
Subsequently, 3-methoxybenzylchloride (232 mg, 1.49 mmol, 1.5 eq)
was added to the mixture. The resulting mixture was stirred at
20.degree. C. for 14 hours. LCMS (19441-143-1A) showed compound
85-A was consumed completely. The mixture was poured into water 50
mL, and filtered. The cake was dried to get compound 94-A (410 mg,
97.7% in yield) as yellow solid, which was used in the next step
directly.
Procedure for the Purification and Chiral Separation of Compounds
94-Ent1 and 94-Ent2:
[1550] The DDQ reaction mixture was concentrated to get a residue,
and the residue was purified by prep-TLC PE/EtOAc=2/1 to get a
racemic compound, which was further purified by SFC (column: AD
(250 mm*30 mm, 10 um), condition: Neu-MeOH) to give 94-Ent1 (51 mg,
32.0% in yield) and 94-Ent2 (77 mg, 35.8% in yield) as a white
solid.
Spectra for 94-Ent1
[1551] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.50 (s, 1H),
7.32-7.36 (m, 4H), 7.10-7.12 (m, 2H), 6.92-6.94 (m, 2H), 4.92 (d,
J=14.0 Hz, 1H), 4.49 (d, J=14.0 Hz, 1H), 3.83 (s, 3H), 3.44-3.54
(m, 2H), 2.39-2.41 (m, 2H), 1.82-1.84 (m, 1H), 1.60-1.66 (m, 1H),
1.12 (d, J=6.4 Hz, 3H).
[1552] HPLC: (Purity: 96.51%)
[1553] SFC: (Column: ChiralCel OJ-H 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
95.46%)
[1554] LCMS: (M+H: 401.1).
Spectra for 94-Ent2
[1555] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.50 (s, 1H),
7.32-7.36 (m, 4H), 7.11-7.12 (m, 2H), 6.92-6.94 (m, 2H), 4.92 (d,
J=14.0 Hz, 1H), 4.49 (d, J=14.0 Hz, 1H), 3.83 (s, 3H), 3.44-3.56
(m, 2H), 2.39-2.41 (m, 2H), 1.82-1.87 (m, 1H), 1.63-1.65 (m, 1H),
1.12 (d, J=6.4 Hz, 3H).
[1556] HPLC: (Purity: 98.57%).
[1557] SFC: (Column: ChiraCel OJ-H 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
96.25%).
[1558] LCMS: (M+H: 401.1).
Example 78: Synthesis of 95-Ent1 and 95-Ent2
##STR00118##
[1560] Compounds 95-Ent1 and 95-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 95-A:
[1561] To a suspension of compound 85-A (300 mg, 0.995 mmol, 1.0
eq.) in anhydrous DMF (8 mL) was added 60% NaH (119.4 mg, 2.985
mmol, 3.0 eq.) and stirred for 30 minutes at 15-23.degree. C. under
N.sub.2 protection. Then 4-(chloromethyl)-1-methyl-1H-pyrazole
hydrogen chloride (216 mg, 1.294 mmol, 1.3 eq) was added and the
resulting mixture was stirred for 3 hours at 50.degree. C. TLC
(petroleum ether/EtOAc=1/1) showed that the starting material was
consumed completely and a new spot was detected. The reaction
mixture was quenched with saturated aqueous NH.sub.4Cl (50 mL)
extracted with EtOAc (50 mL.times.3) (combined work up with
19146-85-1). The combined organic layers were washed with brine (50
mL), dried over anhydrous sodium sulfate, filtered and concentrated
under reduced pressure. The crude was purified by combi flash (30%
to 100% EtOAc in PE) to give the compound 95-A (430 mg, 81.9%
yield) as a light yellow solid.
[1562] LCMS: (M+H: 396.1)
[1563] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 7.58-7.60 (m, 2H),
7.27-7.30 (m, 3H), 7.20-7.23 (m, 2H), 4.25-4.39 (m, 2H), 3.92-3.97
(m, 4H), 3.82 (s, 3H), 3.09-3.15 (m, 1H), 2.89-2.99 (m, 1H),
2.51-2.59 (m, 1H), 2.29-2.35 (m, 1H), 1.91-2.21 (m, 4H), 1.60-1.64
(m, 1H), 1.25-1.32 (m, 1H), 0.96 (d, J=6.4 Hz, 3H).
Procedure for the Purification and Chiral Separation of Compounds
95-Ent1 and 95-Ent2:
[1564] The DDQ reaction mixture was cooled to room temperature and
quenched with water (80 mL) and saturated aqueous NaHCO.sub.3 (50
mL), extracted with EtOAc (50 mL.times.3). The combined organic
layers were washed with brine (50 mL), dried over anhydrous sodium
sulfate, filtered and concentrated under reduced pressure. The
crude was purified by combi flash (10% to 60% EtOAc in PE) to give
the desired compound, which was further purified by prep-HPLC
(Column: Xtimate C18 150 mm*25 mm; 5 um); Condition: Water (10 mM
NH.sub.4HCO.sub.3)-ACN; 30%-60%) and prep-SFC (Column: AD (250
mm*30 mm; 10 um); Condition: Neu-EtOH; 40%) to give the desired
compounds 95-Ent1 (77 mg, 50% yield) and 95-Ent2 (73 mg, 50% yield)
as white solids.
Spectra of 95-Ent1:
[1565] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.44 (s, 1H), 752
(s, 1H), 7.47 (s, 1H), 7.32-7.34 (m, 3H), 7.01-7.03 (m, 2H),
4.66-4.70 (m, 1H), 4.34-4.37 (m, 1H), 3.91 (s, 3H), 3.48-3.62 (m,
2H), 2.31-2.41 (m, 2H), 1.83-1.88 (m, 1H), 1.60-1.67 (m, 1H), 1.12
(d, J=6.4 Hz, 3H).
[1566] HPLC: (Purity: 100%)
[1567] SFC: (Rt=3.593 min, ee: 100%)
[1568] LCMS: (M+H: 375.0)
Spectra of 95-Ent2:
[1569] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.44 (s, 1H), 752
(s, 1H), 7.47 (s, 1H), 7.30-7.34 (m, 3H), 7.01-7.03 (m, 2H),
4.66-4.70 (m, 1H), 4.34-4.37 (m, 1H), 3.91 (s, 3H), 3.48-3.62 (m,
2H), 2.31-2.42 (m, 2H), 1.83-1.88 (m, 1H), 1.61-1.67 (m, 1H), 1.12
(d, J=6.4 Hz, 3H).
[1570] HPLC: (Purity: 99.48%)
[1571] SFC: (Rt=4.751 min, ee: 100%)
[1572] LCMS: (M+H: 375.0)
Example 79: Synthesis of 96-Ent1 and 96-Ent2
##STR00119##
[1574] Compounds 96-Ent1 and 96-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 96-A:
[1575] To a solution of compound 85-A (500 mg, 1.66 mmol, 1.0 eq)
in DMF 10 mL was added NaH (664 mg, 16.6 mmol, 10.0 eq) at
0.degree. C. The mixture was stirred at 0.degree. C. for 1 hour.
Bromocyclobutane (2.3 g, 16.6 mmol, 10.0 eq) was added to the
mixture. The resulting mixture was stirred at 20.degree. C. for 14
hours. LCMS showed compound 85-A was consumed completely. The
mixture was poured into water 50 mL, and filtered. The cake was
dried to get compound 96-A (220 mg, 37.3% in yield) as yellow
solid.
[1576] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.56-7.61 (m,
2H), 7.23-7.31 (m, 3H), 4.85-4.91 (m, 1H), 3.96-3.99 (m, 4H),
3.26-3.30 (m, 1H), 2.78-2.80 (m, 1H), 2.58-2.60 (m, 1H), 2.22-2.24
(m, 4H), 2.02-2.04 (m, 3H), 1.97-1.99 (m, 1H), 1.59-1.63 (m, 1H),
1.26-1.30 (m, 1H), 0.99-1.01 (m, 3H).
Procedure for the Purification and Chiral Separation of Compounds
96-Ent1 and 96-Ent2:
[1577] The DDQ reaction mixture was concentrated to get a residue,
and the residue was purified by prep-TLC PE/EtOAc=3/1 to get a
racemic compound, which was further purified by SFC (column: AD
(250 mm*30 mm, 10 um), condition: Neu-MeOH) to 96-Ent1 (15 mg,
37.7% in yield) as a white solid and 96-Ent2 (15 mg, 37.7% in
yield) as a white solid.
Spectra for 96-Ent1
[1578] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.43 (s, 1H),
7.36-7.40 (m, 3H), 7.10-7.12 (m, 2H), 4.93-5.02 (m, 1H), 3.60-3.65
(m, 1H), 3.49-3.50 (m, 1H), 2.42-2.46 (m, 1H), 2.32-2.36 (m, 1H),
2.25-2.30 (m, 4H), 1.81-1.82 (m, 1H), 1.80-1.82 (m, 2H), 1.63-1.65
(m 1H), 1.16 (d, J=6.4 Hz, 1H).
[1579] HPLC: (Purity: 100%).
[1580] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
91.4%).
[1581] LCMS: (M+H: 335.1).
Spectra for 96-Ent2
[1582] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.43 (s, 1H),
7.36-7.40 (m, 3H), 7.10-7.12 (m, 2H), 4.93-5.02 (m, 1H), 3.60-3.63
(m, 1H), 3.49-3.50 (m, 1H), 2.42-2.46 (m, 1H), 2.30-2.32 (m, 1H),
2.25-2.28 (m, 4H), 1.81-1.82 (m, 1H), 1.79-1.80 (m, 2H), 1.64-1.66
(m 2H), 1.16 (d, J=6.4 Hz, 1H).
[1583] HPLC: (Purity: 100%).
[1584] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
92.3%).
[1585] LCMS: (M+H: 335.1).
Example 80: Synthesis of 97-Ent1 and 97-Ent2
##STR00120##
[1587] Compounds 97-Ent1 and 97-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2.
Procedure for the Preparation of 97-A:
[1588] To a suspension of compound 85-A (500 mg, 1.66 mmol, 1.0
eq.) in anhydrous DMF (12 mL) was added 60% NaH (266 mg, 6.64 mmol,
4.0 eq.) and stirred for 30 minutes at 22-34.degree. C. under
N.sub.2 protection. Then 2-(chloromethyl)pyridine hydrochloride
(354 mg, 2.16 mmol, 1.3 eq) was added and the resulting mixture was
stirred for 2 hours at 50.degree. C. TLC (EtOAc) showed that the
starting material was consumed completely and a new spot was
detected. The reaction mixture was poured into saturated aqueous
NH.sub.4Cl (80 mL), extracted with EtOAc (50 mL.times.3). The
combined organic layers were washed with brine (80 mL), dried over
anhydrous sodium sulfate, filtered and concentrated under reduced
pressure to give the crude compound 97-A (786 mg, crude) as an
off-white solid, which was used directly for next step without
further purification.
[1589] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.45 (d, J=4.4 Hz,
1H), 7.53-7.62 (m, 3H), 7.27-7.31 (m, 2H), 7.21-7.24 (m, 1H),
7.10-7.14 (m, 1H), 7.04 (d, J=7.6 Hz, 1H), 4.63 (s, 2H), 3.95-3.98
(m, 4H), 3.02-3.22 (m, 2H), 2.54-2.62 (m, 1H), 2.09-2.35 (m, 4H),
1.86-1.97 (m, 1H), 1.62-1.65 (m, 1H), 1.24-1.32 (m, 1H), 0.98 (d,
J=6.4 Hz, 3H).
Procedure for the Purification and Chiral Separation of Compounds
97-Ent1 and 97-Ent2:
[1590] The DDQ reaction mixture was poured into water (50 mL) and
extracted with EtOAc (40 mL.times.4). The combined organic layers
were washed with brine (50 mL), dried over anhydrous sodium
sulfate, filtered and concentrated under reduced pressure. The
crude was purified by combi flash (20% to 100% EtOAc in PE) to give
the desired compound, which was further purified by prep-SFC
(Column: Chiralcel OD (250 mm*30 mm; 5 um); Condition: 0.1%
NH.sub.3H.sub.2O-EtOH; 30%) to give the desired compounds 97-Ent1
(28 mg, 40.9% yield) and 97-Ent2 (29 mg, 40.9% yield) as white
solids.
Spectra of 97-Ent1:
[1591] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.63 (d, J=4.4 Hz,
1H), 8.45 (s, 1H), 7.69-7.73 (m, 1H), 7.33-7.40 (m, 4H), 7.26-7.28
(m, 1H), 7.21-7.25 (m, 2H), 4.96-5.00 (m, 1H), 4.61-4.65 (m, 1H),
3.82-3.87 (m, 1H), 3.62-3.69 (m, 1H), 2.39-2.50 (m, 2H), 1.85-1.90
(m, 1H), 1.68-1.76 (m, 1H), 1.14 (d, J=6.4 Hz, 3H).
[1592] HPLC: (Purity: 100%)
[1593] SFC: (Rt=3.518 min, ee: 97.30%)
[1594] LCMS: (M+H: 372.1)
Spectra of 97-Ent2:
[1595] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.63 (d, J=4.0 Hz,
1H), 8.45 (s, 1H), 7.69-7.73 (m, 1H), 7.33-7.40 (m, 4H), 7.26-7.28
(m, 1H), 7.22-7.25 (m, 2H), 4.96-5.00 (m, 1H), 4.61-4.65 (m, 1H),
3.82-3.87 (m, 1H), 3.62-3.69 (m, 1H), 2.37-2.50 (m, 2H), 1.85-1.90
(m, 1H), 1.68-1.76 (m, 1H), 1.14 (d, J=6.4 Hz, 3H).
[1596] HPLC: (Purity: 99.30%)
[1597] SFC: (Rt=3.706 min, ee: 94.42%)
[1598] LCMS: (M+H: 372.1)
Example 81: Synthesis of 98-Ent1 and 98-Ent2
##STR00121##
[1600] Compounds 98-Ent1 and 98-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2, noting that
the TBS group is removed upon treatment with NH.sub.2OH*HCl and
that an alternative oxidation procedure is used in the final step,
described below.
Procedure for the Preparation of 98-A:
[1601] To a suspension of compound 85-A (500 mg, 1.66 mmol, 1.0
eq.) in anhydrous DMF (12 mL) was added 60% NaH (265.6 mg, 6.64
mmol, 4.0 eq.) and stirred for 30 minutes at 21-30.degree. C. under
N.sub.2 protection. Then compound 85-A (516 mg, 2.16 mmol, 1.3 eq)
was added and the resulting mixture was stirred for 6 hours at
21-30.degree. C. TLC (PE/EtOAc=3/1) showed that the starting
material was consumed completely and a new spot was detected. The
reaction mixture was poured into saturated aqueous NH.sub.4Cl (80
mL), extracted with EtOAc (50 mL.times.2). The combined organic
layers were washed with brine (50 mL), dried over anhydrous sodium
sulfate, filtered and concentrated under reduced pressure to give
the crude compound 98-A (890 mg, 1.66 mmol, crude) as a light brown
oil, which was used directly for next step without further
purification.
[1602] LCMS: (M+H: 460.3).
Procedure for the Preparation of 98-B:
[1603] Compound 98-B can be made from 98-A in a manner analogous to
that described for the synthesis of 85-F from 85-B.
Procedure for the Preparation of 98-Ent1 and 98-Ent2 (Alternative
Oxidation Protocol):
[1604] To a solution of compound 98-B (240 mg, 0.735 mmol, 1.0 eq.)
in anhydrous DMF (8 mL) cooled to 0.degree. C. in an ice water bath
was added 1,3-Dibromo-5,5-Dimethylhydantoin [DBDMH (105.2 mg, 0.368
mmol, 0.5 eq.) under N.sub.2 protection. The resulting mixture was
stirred at 0.degree. C. for 1 hour, pyridine (581.4 mg, 7.35 mg, 10
eq) was added, and the reaction mixture was heated at 55.degree. C.
for 16 hours. LCMS (19146-136-1A) showed that the desired compound
MS value was detected. Then the reaction mixture was poured into
water (80 mL), extracted with EtOAc (40 mL.times.3). The combined
organic layers were washed with brine (40 mL), dried over anhydrous
sodium sulfate, filtered and concentrated under reduced pressure.
The crude was purified by combi flash (20% to 80% EtOAc in PE) to
give the desired compound, which was further separated by prep-SFC
(Column: AD (250 mm*30 mm; 5 um); Condition: Neu-IPA; 30%) to give
the desired compound 98-Ent1 (56 mg, 46.9% yield) and 98-Ent2 (56
mg, 46.9% yield) as white solid.
Spectra of 98-Ent1:
[1605] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.41 (s, 1H),
7.35-7.43 (m, 3H), 7.19-7.22 (m, 2H), 3.91-4.02 (m, 3H), 3.72-3.77
(m, 1H), 3.57-3.65 (m, 1H), 3.46-3.52 (m, 1H), 2.39-2.48 (m, 3H),
1.87-1.92 (m, 1H), 1.67-1.77 (m, 1H), 1.15 (d, J=6.4 Hz, 3H).
[1606] HPLC: (Purity: 100%)
[1607] SFC: (Rt=3.981 min, ee: 99.90%)
[1608] MS: (M+H: 325.1)
Spectra of 98-Ent2:
[1609] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 8.40 (s, 1H),
7.35-7.43 (m, 3H), 7.19-7.22 (m, 2H), 3.90-4.00 (m, 3H), 3.72-3.77
(m, 1H), 3.57-3.65 (m, 1H), 3.46-3.52 (m, 1H), 2.40-2.48 (m, 3H),
1.87-1.92 (m, 1H), 1.68-1.77 (m, 1H), 1.15 (d, J=6.4 Hz, 3H).
[1610] HPLC: (Purity: 98.19%)
[1611] SFC: (Rt=4.671 min, ee: 99.94%)
[1612] MS: (M+H: 325.1)
Example 82: Synthesis of 99-Ent1 and 99-Ent2
##STR00122##
[1614] Compounds 99-Ent1 and 99-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Preparation of 99-A:
[1615] To a solution of compound 85-A (600 mg, 2 mmol, 1.0 eq) and
NaH (240 mg, 6 mmol, 3.0 eq) in DMF (10 mL) was added
3-(chloromethyl)pyridine (978 mg, 6 mmol, 3.0 eq) in one portion at
10-22.degree. C. The reaction mixture was stirred at 10-22.degree.
C. for 18 h. LCMS showed the compound 85-A was consumed completely.
The reaction mixture was quenched with saturated NH.sub.4Cl (30 mL)
and extracted with EA (50 mL.times.2). The combined organic layer
was washed with brine (50 mL.times.2), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give compound 99-A (800 mg, crude) as
yellow oil, which was used for the next step without further
purification.
[1616] LCMS: (M+H: 393.2)
Procedure for the Purification and Chiral Separation of Compounds
99-Ent1 and 99-Ent2:
[1617] Upon completion, the crude DBMDH oxidation mixture was
diluted with water (20 mL), extracted with EtOAc (15 mL.times.4).
The combined organic layers were washed with brine (20 mL), dried
over anhydrous Na.sub.2SO.sub.4, filtered, concentrated and
purified by prep-TLC (DCM:EtOAc=2:1) to supply racemate (.about.90
mg) which was separated by SFC (condition: Neu-EtOH, column: C2 250
mm*30 mm, 10 um) to supply 99-Ent1 (.about.30 mg, purity: 92.03%
detected with HPLC) as white solid and 99-Ent2 (.about.30 mg,
purity: 85.88% detected with HPLC) as white solid.
[1618] 99-Ent1 (30 mg, purity: 92.03%) was re-purified by prep-HPLC
(condition: water (0.225% FA-ACN), column: Phenomenex Synergi C18
150*30 mm*4 um) to supply impure product (.about.15 mg, purity:
91.571% detected by SFC), for which was further separated by SFC
(condition: Neu-MeOH, column: AD 250 mm*30 mm, 5 um) to supply
99-Ent1 (11 mg, 9.26% yield, Rt=3.188 min) as a white solid.
[1619] 99-Ent2 (.about.30 mg, purity: 85.88%) was re-purified by
prep-HPLC (condition: water (0.225% FA-ACN), column: Phenomenex
Synergi C18 150*30 mm*4 um) to supply impure product (.about.15 mg,
purity: 93.83% detected with SFC) for which was further separated
by SFC (condition: Neu-MeOH, column: Chiral park AS-H 250 mm*30 mm,
5 um) to supply 99-Ent2 (11 mg, 9.26% yield, Rt=5.216 min) as a
white solid
Spectra of Compound 99-Ent1:
[1620] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.64 (br s, 2H),
8.46 (s, 1H), 7.80 (br d, J=8.0 Hz, 1H), 7.32-7.40 (m, 4H),
7.02-7.08 (m, 2H), 4.85 (d, J=14.0 Hz, 1H), 4.64 (d, J=14.4 Hz,
1H), 3.45-3.62 (m, 2H), 2.35-2.45 (m, 2H), 1.88 (m, 1H), 1.67 (m,
1H), 1.13 (d, J=6.4 Hz, 3H)
[1621] HPLC: (purity: 98.03%)
[1622] SFC: (purity: 98.491%)
[1623] LCMS: (M+H: 372.0)
Spectra of Compound 99-Ent2:
[1624] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.65 (br s, 2H),
8.46 (s, 1H), 7.80 (br d, J=8.0 Hz, 1H), 7.32-7.39 (m, 4H),
7.02-7.09 (m, 2H), 4.85 (d, J=14.4 Hz, 1H), 4.64 (d, J=14. Hz, 1H),
3.45-3.62 (m, 2H), 2.35-2.45 (m, 2H), 1.88 (m, 1H), 1.69 (m, 1H),
1.13 (d, J=6.0 Hz, 3H)
[1625] HPLC: (Purity: 93.35%)
[1626] SFC: (purity: 97.833%)
[1627] LCMS: (M+H: 372.0)
Example 83: Synthesis of 100-Ent1 and 100-Ent2
##STR00123##
[1629] Compounds 100-Ent1 and 100-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Preparation of 100-A:
[1630] To a solution of compound 85-A (600 mg, 2 mmol, 1.0 eq) in
15 mL of DMF was added NaH (240 mg, 6 mmol, 3.0 eq) at 0.degree. C.
by dropwise. After 15 minute, 4-(chloromethyl)pyridine was added
and the reaction mixture was stirred at 22-26.degree. C. for 18 hs.
LCMS showed that the desired mass response was observed. The
mixture was diluted with saturated water (60 mL) and extracted with
EA (40 mL.times.3). The combined organic layer was washed with
brine (30 mL*2), dried over Na.sub.2SO.sub.4, filtered and
concentrated in vacuo to supply crude compound 100-A (800 mg,
crude) as yellow oil, which was used for the next step without
further purification.
[1631] LCMS: ([M+H]: 393.2)
Procedure for the Purification and Chiral Separation of Compounds
100-Ent1 and 100-Ent2:
[1632] Upon completion, the crude DBMDH oxidation mixture was
diluted with water (30 mL), extracted with EtOAc (35 mL.times.3).
The combined organic layers was washed with brine (20 mL.times.2),
dried over Na.sub.2SO.sub.4, filtered and concentrated in vacuum to
get the residue which was purified by prep-TLC (EtOAc, Rf=0.4) to
supply the racemate (50 mg, yield=74%) as yellow oil.
[1633] The racemate was further separated by SFC (condition:
Neu-EtOH, column: AD (250 mm*30 mm, 5 um)) to supply 100-Ent1 (7
mg, Rt=1.314 min, yield=28%) as white solid and 100-Ent2 (7 mg,
Rt=2.667 min, yield=28%) as white solid.
Spectra for 100-Ent1
[1634] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.68-8.63 (m,
2H), 8.46 (s, 1H), 7.40-7.35 (m, 3H), 7.29-7.27 (m, 2H), 7.11-7.07
(m, 2H), 4.73 (q, J=14.40 Hz, 2H), 3.59-3.42 (m, 2H), 2.46-2.39 (m,
2H), 1.92-1.85 (m, 1H), 1.80-1.69 (m, 1H), 1.14 (d, J=6.0 Hz,
3H)
[1635] HPLC: (purity: 98.22%)
[1636] SFC: (purity: 99.25%)
[1637] LCMS: ([M+H]: 372.1)
Spectra for 100-Ent2
[1638] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.67-8.62 (m,
2H), 8.46 (s, 1H), 7.41-7.36 (m, 3H), 7.29-7.27 (m, 2H), 7.11-7.07
(m, 2H), 4.73 (q, J=14.8 Hz, 2H), 3.57-3.41 (m, 2H), 2.46-2.37 (m,
2H), 1.94-1.85 (m, 1H), 1.70-1.63 (m, 1H), 1.14 (d, m, J=6.0 Hz,
3H)
[1639] HPLC: (Purity: 96%)
[1640] SFC: (purity: 97.42%)
[1641] LCMS: ([M+H]: 372.1)
Example 84: Synthesis of 101-Ent1 and 101-Ent2
##STR00124##
[1643] Compounds 101-Ent1 and 101-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Preparation of 101-A:
[1644] To a solution of compound 85-A (500 mg, 1.7 mmol, 1 eq.) in
10 mL of DMF was added NaH (136 mg, 3.4 mmol, 2.0 eq), the mixture
was stirred at 26.degree. C. for 1.5 h. Subsequently,
3-(bromomethyl)-5-methylisoxazole (438 mg, 2.49 mmol, 1.5 eq) was
added and the resulting mixture was stirred at 23-28.degree. C. for
18 h. TLC (PE:EtOAc=2:1) showed one new spot was observed. The
mixture was poured into 30 mL of ice-water, extracted with EtOAc
(20 mL.times.3). The combined organic layers were washed with brine
(20 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered and
concentrated. The residue was purified by flash column
(PE:EtOAc=90:10.about.80:20.about.70:30) to supply compound 101-A
(540 mg, 62.8% yield, purity: 78.3%) as colorless gum.
[1645] LCMS: (M+H: 397.2)
Procedure for the Purification and Chiral Separation of Compounds
101-Ent1 and 101-Ent2:
[1646] Upon completion, the crude DBMDH oxidation mixture was
diluted with EtOAc (30 m), washed with 1M HCl aq. (10 mL.times.2),
brine (10 mL.times.2), dried over anhydrous Na.sub.2SO.sub.4,
filtered, concentrated and purified by prep-TLC (PE:EtOAc=1:1) to
supply racemate (.about.40 mg) which was separated by SFC
(condition: Neu-IPA, column: AD 250 mm*30 mm; 5 um) to supply
101-Ent1 (13 mg, 21.8% yield, Rt=4.152 min) as white solid and
101-Ent2 (15 mg, 25.1% yield, Rt=4.827 min) as white solid.
Spectra of 101-Ent1:
[1647] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.42 (s, 1H),
7.34-7.41 (m, 3H), 7.12 (m, 2H), 6.06 (d, J=0.8 Hz, 1H), 4.82 (d,
J=14.8 Hz, 1H), 4.59 (d, J=14.8 Hz, 1H), 3.68-3.76 (m, 1H), 3.58
(m, 1H), 2.46 (d, J=0.8 Hz, 3H), 2.38-2.43 (m, 2H), 1.89 (m, 1H),
1.66-1.76 (m, 1H), 1.14 (d, J=6 Hz, 3H).
[1648] HPLC: (purity: 99.34%).
[1649] SFC: (purity: 99.78%).
[1650] LCMS: (M+H: 376.0).
Spectra of 101-Ent2:
[1651] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.42 (s, 1H),
7.35-7.40 (m, 3H), 7.12 (m, 2H), 6.06 (s, 1H), 4.82 (d, J=14.8 Hz,
1H), 4.59 (d, J=15.2 Hz, 1H), 3.68-3.75 (m, 1H), 3.58 (m, 1H), 2.46
(s, 3H), 2.38-2.43 (m, 2H), 1.89 (m Hz, 1H), 1.71 (m, 1H), 1.14 (d,
J=6.0 Hz, 3H).
[1652] HPLC: (Purity: 98.51%).
[1653] SFC: (purity: 99.91%).
[1654] LCMS: (M+H: 376.0).
Example 85: Synthesis of 102-Ent1 and 102-Ent2
##STR00125##
[1656] Compounds 102-Ent1 and 102-Ent2 can be made in a manner
analogous to that described for 85-Ent1 and 85-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
[1657] To a suspension of compound 85-A (600 mg, 2.0 mmol, 1.0 eq.)
in DMF (15 mL) was added NaH (240 mg, 6.0 mmol, 3.0 eq.) at
26.degree. C. and stirred at 26.degree. C. for 1 hour. Then
4-(chloromethyl)-2-methylpyridine (352 mg, 2.5 mmol, 1.25 eq.) was
added at 26.degree. C. and the reaction suspension was stirred at
26.degree. C. for 16 hours. The reaction solution was quenched by
water (30 mL) extracted by EA (30 mL.times.3). The combined organic
layer was washed by water (20 mL) and brine (20 mL), dried over
sodium sulphate and filtered. The filtrate was evaporated under
reduced pressure to afford yellow solid (570 mg, yield=70%).
[1658] LCMS: ([M+H]: 407.2)
Procedure for the Purification and Chiral Separation of Compounds
102-Ent1 and 102-Ent2:
[1659] Upon completion, the crude DBMDH oxidation mixture was
diluted by water (15 mL) and extracted by EA (30 mL.times.3). The
combined organic layer was washed by water (40 mL) and brine (20
mL), dried over sodium sulphate and filtered. The filtrate was
evaporated under reduced pressure and the residue was purified by
prep-TLC (EA) to afford white solid (28 mg, yield=91%). The racemic
compound (28 mg, 0.08 mmol) was separated by SFC (Column: AD 250
mm*30 mm, 5 um; Condition: EtOH--CO.sub.2, 40%) to afford 102-Ent1
as a white solid (12 mg, yield=42.9%) and 102-Ent2 as a white solid
(9 mg, yield=32.1%).
Spectra for 102-Ent1
[1660] .sup.1H NMR: (CHLOROFORM-d, 400 MHz): .delta.=8.46 (d, J=5.2
Hz, 1H), 8.40 (s, 1H), 7.28-7.33 (m, 3H), 7.08 (s, 1H), 6.99-7.06
(m, 3H), 4.72 (d, J=14.6 Hz, 1H), 4.51 (d, J=14.6 Hz, 1H),
3.36-3.49 (m, 2H), 2.52 (s, 3H), 2.32-2.40 (m, 2H), 1.76-1.86 (m,
1H), 1.57-1.61 (m, 1H), 1.07 ppm (d, J=6.4 Hz, 3H)
[1661] HPLC: (purity: 100%)
[1662] SFC: (ee: 99.08%)
[1663] LCMS: ([M+H]: 386.1)
Spectra for 102-Ent2
[1664] .sup.1H NMR: (CHLOROFORM-d, 400 MHz): .delta.=8.46 (d, J=5.2
Hz, 1H), 8.40 (s, 1H), 7.28-7.33 (m, 3H), 7.08 (s, 1H), 6.99-7.06
(m, 3H), 4.72 (d, J=14.6 Hz, 1H), 4.51 (d, J=14.6 Hz, 1H),
3.36-3.49 (m, 2H), 2.52 (s, 3H), 2.32-2.40 (m, 2H), 1.76-1.86 (m,
1H), 1.57-1.61 (m, 1H), 1.07 ppm (d, J=6.4 Hz, 3H)
[1665] HPLC: (purity: 100%)
Example 86: Synthesis of Compounds 103-Ent1 and 103-Ent2
##STR00126## ##STR00127##
[1666] Procedure for the Preparation of 103-A:
[1667] To a solution of compound 2,4-dimethoxybenzylamine (100 g,
598 mmol, 1.0 eq.) in EtOH (1 L) was added compound ethyl acrylate
(60 g, 598 mmol, 1.0 eq.). The reaction mixture was stirred at
10-20.degree. C. for 16 h. LCMS showed that the starting material
was consumed completely and the desired product was detected. The
mixture concentrated in vacuo to give compound 103-A (158 g, crude)
as a yellow gum.
[1668] LCMS: (M+H: 268.1)
Preparation of Compound 103-B
[1669] To a solution of compound 103-A (50 g, 187 mmol, 1.0 eq.) in
DCM (500 mL) was added 2-bromopropanoyl bromide (48 g, 224 mmol,
1.2 eq.) and TEA (23 g, 224 mmol, 1.2 eq.). The reaction mixture
was stirred at 20.degree. C. for 16 h. LCMS showed that the
starting material was consumed completely and the desired product
was detected. The mixture was added water (500 mL) and extracted
with DCM (500 mL.times.3). The combined organic layers were washed
with brine (1 L), dried over Na.sub.2SO.sub.4, filtered and the
filtrate was concentrated in vacuo to give compound 103-B (80 g,
crude) as a yellow gum.
[1670] LCMS: (M+H: 404.0)
[1671] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 6.94-7.20 (m, 1H),
6.38-6.47 (m, 2H), 4.78-4.93 (m, 1H), 4.69-4.78 (m, 1H), 4.23-4.39
(m, 1H), 4.09-4.14 (m, 2H), 3.82-3.94 (m, 1H), 3.79-3.82 (m, 6H),
3.32-3.46 (m, 1H), 2.58-2.70 (m, 1H), 2.44-2.55 (m, 1H), 1.84-1.89
(m, 1H), 1.84-1.89 (m, 1H), 1.80 (d, J=6.62 Hz, 2H), 1.22-1.26 (m,
3H)
Preparation of Compound 103-C
[1672] THF (60 mL) was added to a round bottom flask and heated at
60.degree. C. under N.sub.2 atmosphere. A solution of compound
103-B (15 g, 37.3 mmol, 1.0 eq) in THF (90 mL) and a solution of
tBuMgCl (93 mL, 93 mmol, 2.5 eq., 1 M in THF) were added dropwise
simultaneously by syringe over 30 min. The reaction mixture was
stirred at 60.degree. C. for 2 h. LCMS showed that the starting
material was consumed completely and the desired product was
detected. The mixture was added Sat. NH.sub.4Cl (150 mL) and
extracted with EtOAc (150 mL.times.3). The combined organic layers
were washed with brine (1 L), dried over Na.sub.2SO.sub.4, filtered
and the filtrate was concentrated in vacuo to give the crude. The
crude was purified by column chromatography on silica gel
(PE:EtOAc=20:1 to 2:1) to supply compound 103-C (7.5 g, 73% yield)
as a yellow gum.
[1673] LCMS: (M+H: 278.1)
[1674] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta. 7.18-7.23 (m, 1H),
6.44-6.47 (m, 2H), 4.64-4.71 (m, 1H), 4.53-4.60 (m, 1H), 3.81 (d,
J=2.18 Hz, 6H), 3.61-3.70 (m, 1H), 3.49-3.56 (m, 1H), 3.35 (q,
J=6.86 Hz, 1H), 2.51-2.60 (m, 1H), 2.38-2.49 (m, 1H), 1.35 (d,
J=7.02 Hz, 3H).
Preparation of Compound 103-D
[1675] To a solution of compound 103-C (30 g, 108.2 mmol, 1.0 eq.)
in MeCN (300 mL) was added TEA (21.9 g, 21.64 mmol, 2.0 eq.) and
EVK (10.9 g, 129.8 mmol, 1.2 eq.). The mixture was stirred at
70.degree. C. for 16 hours. LCMS showed the starting materials were
consumed completely and the desired product was detected. The
mixture concentrated in vacuo and added Sat. NH.sub.4Cl (300 mL)
and extracted with EtOAc (400 mL.times.3). The combined organic
layers were dried over Na.sub.2SO.sub.4, filtered and the filtrate
was concentrated in vacuo to give compound 103-D (33 g, 84% yield)
as a yellow gum.
[1676] LCMS: (M+H: 361.1).
Preparation of Compound 103-E
[1677] To a solution of compound 103-D (30 g, 83.0 mmol, 1.0 eq.)
in MeOH (300 mL) was added NaOMe (5.4 g, 99.6 mmol, 1.2 eq.). The
reaction mixture was stirred at 50.degree. C. for 2 hours. LCMS
showed the starting materials were consumed completely and the
desired product was detected. The mixture quenched by Sat.
NH.sub.4Cl (300 mL) and extracted with EtOAc (300 mL.times.3). The
combined organic layer was dried over anhydrous Na.sub.2SO.sub.4,
filtered, concentrated under reduced pressure to give the crude,
which was triturated with EtOH (50 mL) and filtered to give the
compound 103-E (27 g, 94.7% yield) as a yellow solid.
[1678] LCMS: (M+H: 344.1).
[1679] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.16 (d, J=9.04
Hz, 1H), 6.45-6.48 (m, 2H), 4.61-4.67 (m, 1H), 4.52-4.58 (m, 1H),
3.81 (s, 6H), 3.39-3.45 (m, 1H), 3.19-3.25 (m, 1H), 2.77-2.83 (m,
1H), 2.49-2.61 (m, 3H), 2.35-2.43 (m, 1H), 1.99-2.08 (m, 1H), 1.76
(s, 3H), 1.49 (s, 3H)
Preparation of Compound 103-F
[1680] To a solution of compound 103-E (6.0 g, 17.49 mmol, 1 eq.)
in 200 mL of THF was added potassium tert-Butoxide (3.53 g, 31.48
mmol, 1.8 eq) under ice-bath (0.about.5.degree. C.) cooling by
portion wise, then the mixture was stirred at 0.about.5.degree. C.
for 1.5 h. Compound methyl iodide (3.73 g, 26.24 mmol, 1.5 eq) was
added by drop wise. The resulting mixture was stirred at 13.degree.
C..about.23.degree. C. for 18 h. TLC (PE:EA=2:1) showed compound
103-E remained little, several spots were observed. The mixture was
poured into 300 mL of water and 50 mL of brine, extracted with
EtOAc (150 mL.times.3). The combined organic layers were dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated. The residue
was purified by flash column (PE:EtOAc=90:10.about.50:50) to give
compound 103-F (2.5 g, 40.06% yield) as pale-yellow gum.
[1681] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.09-7.15 (m,
1H), 6.41-6.49 (m, 2H), 5.72 (dd, J=1.97, 5.92 Hz, 1H), 4.82 (d,
J=14.91 Hz, 1H), 4.42 (d, J=14.47 Hz, 1H), 3.83-3.91 (m, 1H), 3.80
(d, J=1.75 Hz, 6H), 3.67-3.76 (m, 1H), 2.61-2.70 (m, 1H), 2.49-2.59
(m, 1H), 2.34-2.44 (m, 1H), 2.17 (m, 1H), 1.32 (s, 3H), 1.27 (d,
J=2.63 Hz, 6H).
Preparation of Compound 103-G
[1682] Compound 103-F (2.5 g, 7.0 mmol, 1.0 eq.) was added into 30
mL of TFA. The resulting mixture was stirred at 70.degree. C. for
1.5 h. TLC (PE:EA=2:1) showed compound 103-F was consumed
completely. The mixture was concentrated, the residue was diluted
with EtOAc (150 mL) and water (100 mL), adjusted pH to 7.about.8 by
adding saturated aqueous NaHCO.sub.3, extracted with EtOAc (100
mL.times.3). The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=80:20.about.50:50) to give
compound 103-G (900 mg, 62% yield) as pale-yellow solid.
[1683] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 6.09 (br s, 1H),
5.81 (br d, J=5.51 Hz, 1H), 4.00-4.09 (m, 1H), 3.81-3.91 (m, 1H),
2.35-2.61 (m, 3H), 2.06-2.20 (m, 1H), 1.35 (s, 3H), 1.32 (s, 3H),
1.30 (s, 3H).
Preparation of Compound 103-H
[1684] To a solution of compound 103-G (400 mg, 1.93 mmol, 1 eq.)
in 10 mL of THF was added NaH (108 mg, 2.71 mmol, 1.4 eq), then the
mixture was stirred at 20.degree. C. for 1.5 h. Methyl iodide (411
mg, 2.89 mmol, 1.5 eq, 0.18 mL) was added and the resulting mixture
was stirred at 20.degree. C. for 2 h. TLC (PE:EA=1:2) showed
compound 103-G was consumed completely. The mixture was poured into
30 mL of water and 5 mL of brine, extracted with EtOAc (20
mL.times.3). The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=80:20.about.50:50) to give
compound 103-H (180 mg, 42.3% yield) as pale-yellow solid.
[1685] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.74 (dd, J=2.01,
5.77 Hz, 1H), 4.06 (dd, J=2.01, 17.57 Hz, 1H), 3.77 (dd, J=5.52,
17.57 Hz, 1H), 3.03 (s, 3H), 2.48-2.60 (m, 2H), 2.36-2.47 (m, 1H),
2.16-2.23 (m, 1H), 1.34 (s, 3H), 1.29 (s, 3H), 1.26 (s, 3H).
Preparation of Compound 103-I
[1686] To a solution of compound 103-H (230 mg, 1.04 mmol, 1 eq.)
in 4 mL of ethyl formate was added NaOMe (0.66 mL, 3.54 mmol, 3.4
eq. 5.4 M in methanol). The mixture was stirred at 26.degree. C.
under N.sub.2 for 1 h. TLC (PE:EA=1:1) showed compound 103-H was
consumed completely. The mixture was poured into 30 mL of water
slowly, adjusted pH to 6.about.7 by adding 1M HCl aq., extracted
with EtOAc (20 mL.times.3). The combined organic layers were washed
with brine (20 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered
and concentrated to give crude compound 103-I (230 mg) as
pale-yellow gum.
Preparation of Compound 103-J
[1687] To a solution of compound 103-I (230 mg, 0.92 mmol, 1.0 eq.)
in EtOH (5 mL) and H.sub.2O (1 mL) was added hydrochloride
hydroxylamine (78 mg, 1.11 mmol, 1.2 eq.). After addition the
mixture was stirred at 70.degree. C. for 12 h. TLC (PE:EA=1:1)
showed the starting materials were consumed completely. The mixture
was concentrated, the residue was diluted with water (25 mL),
extracted with EtOAc (15 mL.times.3). The combined organic layers
were washed with brine (15 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated to supply compound
103-J (220 mg) as a pale-yellow solid.
[1688] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.12 (s, 1H),
5.84 (dd, J=2.45, 4.28 Hz, 1H), 4.03-4.10 (m, 1H), 3.87-3.95 (m,
1H), 3.04 (s, 3H), 3.01 (d, J=15.89 Hz, 1H), 2.59 (d, J=15.77 Hz,
1H), 1.56 (s, 3H), 1.49 (s, 3H), 1.32 (s, 3H).
Preparation of Compound 103-K
[1689] To a solution of compound 103-J (220 mg, 0.89 mmol, 1 eq.)
in 4 mL of methanol was added NaOMe (1.78 mL, 3.58 mmol, 4.0 eq. 2
M in methanol). After addition the mixture was stirred at
24.degree. C. for 5 h. TLC (PE:EA=1:2) showed compound 103-J was
consumed completely. The mixture was concentrated and the residue
was diluted with water (30 mL), adjusted pH to .about.6 by adding
1M HCl aq., extracted with EtOAc (15 mL.times.3). The combined
organic layers were dried over anhydrous Na.sub.2SO.sub.4, filtered
and concentrated to supply crude compound 103-K (220 mg) as
pale-yellow gum.
Preparation of 103-Ent1 and 103-Ent2
[1690] To a solution of compound 103-K (220 mg, 0.89 mmol, 1.0 eq.)
in toluene/MeCN (2 mL/2 mL) was added DDQ (242 mg, 1.1 mmol, 1.2
eq.). The mixture was stirred at 90.degree. C. for 3 h. TLC
(PE:EA=1:2) showed compound compound 103-K was consumed completely.
The mixture was concentrated and the residue was purified by flash
column (PE:EtOAc=80:20.about.50:50) and prep-TLC (PE:EA=1:3) to
supply racemate (85 mg), which was separated by SFC (Condition:
Neu-IPA, Column: IC 250 mm*30 mm; 10 um) to supply peak 1 (25 mg)
with purity of 92% and peak 2 (28 mg) with purity of 83.8%. Peak 1
(25 mg) was re-purified by prep-HPLC (condition: water (0.225%
FA-CAN, column: Agela ASB 150*25 mm*5 um) to supply compound
103-Ent1 (6 mg, 2.7% yield, Rt=6.972 min) as pale-yellow solid.
Peak 2 (28 mg) was re-purified by prep-HPLC (condition: water
(0.225% FA-CAN, column: Agela ASB 150*25 mm*5 um) to supply
compound 103-Ent2 (5 mg, 2.3% yield. Rt=8.046 min) as pale-yellow
solid.
Spectra of Compound 103-Ent1:
[1691] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.24 (br s, 1H),
5.90 (br d, J=4.19 Hz, 1H), 4.11 (br d, J=17.86 Hz, 1H), 3.81 (br
dd, J=5.18, 17.97 Hz, 1H), 3.03 (br s, 3H), 1.63 (br s, 3H), 1.42
(br s, 6H).
[1692] HPLC: (purity: 98.73%)
[1693] SFC: (purity: 99.799%)
[1694] LCMS: (M+H: 245.0)
Spectra of Compound 103-Ent2:
[1695] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.24 (s, 1H),
5.90 (br d, J=4.85 Hz, 1H), 4.11 (br d, J=17.86 Hz, 1H), 3.81 (br
dd, J=5.62, 17.97 Hz, 1H), 3.03 (s, 3H), 1.63 (s, 3H), 1.42 (s,
6H).
[1696] HPLC: (Purity: 98.34%)
[1697] SFC: (purity: 99.322%)
[1698] LCMS: (M+H: 245.0)
Example 87: Synthesis of Compounds 104-Ent1 and 104-Ent2
##STR00128## ##STR00129##
[1699] Preparation of 104-A:
[1700] To a solution of compound 103-E (5 g, 14.6 mmol, 1 eq.) in
Py. (5 mL) and THF (50 mL) was added Pd/C (500 mg, 10%, dry) at
10.degree. C. under N.sub.2. The mixture was stirred at 25.degree.
C. for 48 hours under H.sub.2 (50 psi). LCMS showed that the
starting material was consumed completely and the desired product
was detected. The suspension was filtered through a pad of celite
and washed with DCM (30 mL.times.2) and EtOH (30 mL), the filtrate
was concentrated under reduce pressure to give a crude product,
which was purified by prep-HPLC (Column: Waters XSELECT C18 150*30
mm*5 um; Condition: water (0.1% TFA)-CAN; FlowRate: 25 mL/min) t to
give compound 104-A (2.6 g, 52% yield) as a colorless oil.
[1701] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 7.05-7.13 (m,
1H), 6.40-6.45 (m, 2H), 4.56-4.63 (m, 1H), 4.40-4.49 (m, 1H),
3.78-3.80 (m, 6H), 3.21-3.27 (m, 1H), 3.09-3.20 (m, 1H), 2.91
(quin, J=6.34 Hz, 1H), 2.47-2.57 (m, 1H), 2.11-2.30 (m, 4H), 1.77
(d, J=13.68 Hz, 1H), 1.63 (s, 3H), 1.31-1.36 (m, 1H), 1.00 (d,
J=6.62 Hz, 3H)
Preparation of Compound 104-B
[1702] A solution of compound 104-A (2.6 g, 7.5 mmol, 1 eq.) in TFA
(40 mL) was stirred at 60.degree. C. for 1 h. TLC (EtOAc, Rf=0.2,
DNPH as coloration) the starting material was consumed completely
and several new spots were observed. The reaction mixture was
poured into Sat. NaHCO.sub.3 (200 mL) and washed with EtOAc (30
mL.times.1). The aqueous layer was extracted with CH2Cl2 (50
mL.times.8). The combined organic layers was dried over Na2SO4,
filtered and concentrated to get 104-B (1.04 g, yield=71.1%) as a
white solid.
[1703] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 5.65-5.79 (m,
1H), 3.33-3.50 (m, 2H), 2.41-2.49 (m, 4H), 1.76-1.83 (m, 3H), 1.44
(s, 1H), 1.04-1.10 (m, 3H).
Preparation of Compound 104-C
[1704] To a solution of compound 104-B (1.03 g, 5.3 mmol, 1 eq.)
and ethane-1,2-diol (4.9 g, 79 mmol, 15 eq.) in THF (20 mL) was
added dropwise BF.sub.3.Et.sub.2O (752 mg, 5.3 mmol, 1 eq.) at
20.degree. C., and the reaction mixture was stirred at 20.degree.
C. for 16 h. LCMS showed that the desired mass response was
observed and TLC (EtOAc=100%, Rf=0.3) showed no new spot was
observed. The reaction mixture was concentrated to get the residue
which was purified by flash chromatography
(CH.sub.2Cl.sub.2/MeOH=30/1.about.20/1) to obtain the title product
104-C as a white solid. (Yield=78.7%, 1.0 g).
[1705] LCMS: (M+H: 240.0)
[1706] .sup.1H NMR: (400 MHz, CDCl.sub.3) .delta. 5.39-5.60 (m,
1H), 3.90-4.04 (m, 4H), 3.23-3.41 (m, 2H), 2.34-2.50 (m, 1H),
1.99-2.07 (m, 1H), 1.74-1.88 (m, 3H), 1.57-1.72 (m, 3H), 1.21-1.28
(m, 3H), 0.87-0.94 (m, 3H).
Preparation of Compound 104-D
[1707] To a solution of compound 104-C (300 mg, 1.3 mmol, 1.0 eq)
and NaH (80 mg, 2 mmol, 2.0 eq) in DMF (3 mL) was added compound
benzyl bromide (340 mg, 2 mmol, 1.5 eq) in one portion at
10-25.degree. C. The reaction mixture was stirred at 10-25.degree.
C. for 18 hs. LCMS showed the compound 104-C was consumed
completely. The reaction mixture was quenched with saturated
NH.sub.4Cl (100 mL) and extracted with EA (60 mL.times.4). The
combined organic layers were washed with brine (100 mL.times.3),
dried over Na.sub.2SO.sub.4, filtered and concentrated to give
compound 104-D (320 mg, yield: 71%) as a white solid, which was
used for the next step without further purification.
[1708] LCMS: (M+H: 330.1)
Preparation of Compound 104-E
[1709] To a solution of compound 104-D (320 mg, crude) in THF (8
mL) was added HCl (1 mL, 1M) dropwise at 10-23.degree. C. The
reaction mixture was stirred at 10-23.degree. C. for 1.8 hours.
LCMS showed the compound 104-D was consumed completely. The mixture
was adjust to PH=9 with solid NaHCO.sub.3. The mixture was
extracted with EA (10 mL.times.2), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give the crude, which was purified by
column chromatography on silica gel (PE/EA=10:1-5:1-1:1) to give
compound 104-E (150 mg, yield: 42%) as yellow oil.
[1710] LCMS: (M+H: 286.1)
Preparation of Compound 104-F
[1711] To a solution of compound 104-E (150 mg, 0.52 mmol, 1.0 eq)
in ethyl formate (5 ml) was added a solution of NaOMe/MeOH (0.49 ml
2.6 mmoL, 5.0 eq, 5.4M) at 10-30.degree. C. dropwise. The mixture
was stirred at 10-18.degree. C. for 18 hours. LCMS showed the
compound 104-E was consumed completely. The mixture was poured into
water (30 mL) and acidified with HCl (1M) to make PH=4-5. The
mixture was extracted with EtOAc (30 mL.times.2). The combined
organic phase was washed with brine (50 mL.times.1), dried over
Na.sub.2SO.sub.4, and filtered. The filtrate was concentrated in
vacuo to give compound 104-F (200 mg), which was used directly in
the next step without purification.
[1712] LCMS: (M+H: 237.1)
Preparation of Compound 104-G
[1713] A mixture of compound 104-F (200 mg, 0.64 mmol, 1.0 eq) and
hydrochloride hydroxylamine (44 mg, 0.64 mmol, 1.0 eq) in
EtOH/H.sub.2O (5 mL, V=5:1) were stirred at 80.degree. C. for 18
hours. LCMS showed desired product was detected. The mixture was
concentrated to remove EtOH and diluted with water (30 ml). The
mixture was extracted with EA (30 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give the crude 104-G
(220 mg), which was used directly in the next step without
purification.
[1714] LCMS: (M+H: 311.1)
Preparation of Compound 104-H
[1715] To a solution of compound 104-G (220 mg, 0.7 mmol, 1.0 eq)
in MeOH (3 mL) was added a solution of NaOMe/MeOH (1.4 mL, 2M,
4.0). The mixture was stirred at 10-21.degree. C. for 18 hours. TLC
(PE:EA=1:3) showed most of the starting material was almost
consumed and a new spot was detected. The mixture was acidified
with HCl (1M) to make PH=4-5 and diluted with water (20 ml). The
mixture was extracted with EtOAc (30 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give compound 104-H
(180 mg, yield: 81%) as yellow oil, which was used for the next
step without further purification.
Preparation of Compounds 104-Ent1 and 104-Ent2
[1716] To a solution of compound 104-H (180 mg, 0.58 mmol, 1.0 eq)
in toluene (5 mL) was added DDQ (132 mg, 0.58 mmol, 1.0 eq) in one
portion at 10-25.degree. C. The mixture was stirred at 85.degree.
C. for 2 hours. TLC (PE:EA=1:2) showed most of the starting
material was consumed and a new spot was detected. The mixture was
concentrated to give the crude and diluted with EtOAc (30 ml). The
mixture was washed saturated NaHCO.sub.3 (30 ml.times.3), dried
over Na.sub.2SO.sub.4, filtered and concentrated to give the crude,
which was purified by pre-TLC (EtOAc/PE=1:1) to give 80 mg, (yield:
45%) of a racemate. The racemic mixture was further separated by
SFC (column: AD (250 mm*30 mm, 10 um) condition: Neu-IPA) to give
104-Ent1 (19425-126-1, 9 mg, yield: 11.5%, Rt=4.787 min) and
104-Ent2 (19425-126-2, 10 mg, yield: 12.5%, Rt=5.240 min), both as
pale white solids.
Spectra of 104-Ent1
[1717] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.52 (s, 1H),
7.28-7.38 (m, 3H), 7.22 (br d, J=6.6 Hz, 2H), 4.72 (d, J=14.4 Hz,
1H), 4.41 (d, J=14.8 Hz, 1H), 3.20-3.41 (m, 2H), 2.46 (qd, J=6.6,
12.8 Hz, 1H), 2.19 (dt, J=3.2, 12.6 Hz, 1H), 1.95-2.04 (m, 1H),
1.81-1.93 (m, 1H), 1.48 (s, 3H), 1.22 (d, J=6.6 Hz, 3H).
[1718] SFC: (ee: 95.1%)
[1719] HPLC: (Purity: 100%)
[1720] LCMS: (M+H=309.0)
Spectra of 104-Ent2
[1721] .sup.1H NMR (400 MHz, METHANOL-d4) .delta.: 8.52 (s, 1H),
7.28-7.38 (m, 3H), 7.22 (br d, J=6.6 Hz, 2H), 4.72 (d, J=14.4 Hz,
1H), 4.41 (d, J=14.8 Hz, 1H), 3.20-3.41 (m, 2H), 2.46 (qd, J=6.6,
12.8 Hz, 1H), 2.19 (dt, J=3.2, 12.6 Hz, 1H), 1.95-2.04 (m, 1H),
1.81-1.93 (m, 1H), 1.48 (s, 3H), 1.22 (d, J=6.6 Hz, 3H).
[1722] SFC: (ee: 97.0%)
[1723] HPLC: (Purity: 100%)
[1724] LCMS: (M+H=309.0)
Example 88: Synthesis of 105-Ent1 and 105-Ent2
##STR00130## ##STR00131##
[1725] Procedure for the Preparation of 105-A
[1726] MeI (5.9 g, 0.041 mol, 1.2 eq) was added to a mixture of
Potassium tert-Butoxide (5.7 g, 0.051 mol, 1.5 eq) and compound
84-A (14.0 g, 0.04 mol, 1.0 eq) in 150 mL of THF by portionwise at
0.degree. C., then the mixture was stirred at 20.degree. C. for 14
hours. TLC (PE/EtOAc=3:1, Rf=0.5) showed compound 84-A was consumed
completely and the desired product was observed. 50 mL of water was
added and the mixture was extracted with EtOAc (200 mL). The
organic layers was combined and washed with brine 100 mL, dried
over anhydrous Na.sub.2SO.sub.4, filtered and concentrated. The
residue was purified by column chromatography on silica gel
(PE/EtOAc from 10/1 to 3:1) to give compound 105-A (6.0 g, 38.7%
yield) as yellow solid.
[1727] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39 (d, J=7.2
Hz, 2H), 7.28-7.32 (m, 2H), 7.24-7.26 (m, 1H), 6.69 (d, J=8.0 Hz,
2H), 6.28 (s, 1H), 6.26 (d, J=6.0 Hz, 1H), 6.25-6.17 (m, 1H), 4.72
(d, J=14.8 Hz, 1H), 4.38 (d, J=15.2 Hz, 1H), 3.67 (s, 3H),
3.65-3.66 (m, 2H), 3.60 (s, 3H), 3.02-3.04 (m, 1H), 2.73-2.74 (m,
1H), 2.37-2.43 (m, 2H), 1.37 (s, 3H), 1.23 (s, 3H).
Preparation of Compound 105-B
[1728] Compound 105-A (5.0 g, 11.9 mmol, 1.0 eq) was added to TFA
50 mL, which was stirred at 70.degree. C. for 1 hour. LCMS showed
compound 105-A was consumed completely. The mixture was
concentrated to get a residue. The residue was purified by column
chromatography on silica gel (PE/EtOAc from 10/1 to 1:1) to give
compound 105-B (2.9 g, 90.3% yield) as yellow solid
[1729] LCMS: (M+H: 270.0).
[1730] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39-7.42 (m,
2H), 7.30-7.34 (m, 2H), 7.24-7.27 (m, 1H), 6.26 (t, J=3.6 Hz, 1H),
5.93 (s, 1H), 3.83-3.85 (m, 2H), 2.90-2.95 (m, 1H), 2.70-2.71 (m,
1H), 2.35-2.44 (m, 2H), 1.40 (s, 3H), 1.26 (s, 3H).
Preparation of Compound 105-C
[1731] BF.sub.3.Et.sub.2O (1.37 g, 9.65 mmol, 1.0 eq) was added to
a solution of compound 105-B (2.6 g, 9.65 mmol, 1.0 eq) and
ethane-1,2-diol (6.0 g, 96.5 mmol, 10.0 eq) in THF 40 mL at
0.degree. C. The mixture was stirred at 20.degree. C. for 14 hours.
LCMS (19441-148-1A) showed compound 105-B was consumed completely.
The mixture was concentrated to get a residue. The residue was
poured into MTBE (20 mL) and filtered. The filter cake was dried to
give compound 105-C (1.9 g, 63.3% yield) as a pale solid, which was
confirmed by HNMR (19441-148-1C).
[1732] LCMS: (M+H: 314.0).
[1733] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.43-7.45 (m,
2H), 7.30-7.34 (m, 2H), 7.23-7.24 (m, 1H), 6.01 (d, J=1.6 Hz, 1H),
5.78 (s, 1H), 4.21-4.24 (m, 1H), 4.16-4.18 (m, 1H), 3.93-4.00 (m,
4H), 3.09-3.14 (m, 1H), 2.00-2.09 (m, 2H), 1.71-1.75 (m, 1H), 1.13
(s, 3H), 0.57 (s, 3H).
Preparation of Compound 105-D
[1734] To a solution of compound 105-C (500 mg, 1.60 mmol, 1.0 eq)
in DMF 4 mL was added NaH (200 mg, 4.80 mmol, 3.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
(bromomethyl)cyclopropane (430 mg, 3.20 mmol, 2.0 eq) was added to
the mixture. The resulting mixture was stirred at 20.degree. C. for
14 hours. LCMS (19165-4-1A) showed compound 105-C was consumed
completely. The mixture was poured into water 50 mL and filtered.
The filter cake was dried to get compound 105-D (300 mg, 51.4% in
yield) as yellow solid.
[1735] LCMS: (M+H: 368.1).
[1736] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39-7.44 (m,
2H), 7.28-7.32 (m, 2H), 7.20-7.22 (m, 1H), 5.97-6.01 (m, 1H),
4.26-4.32 (m, 1H), 4.12-4.14 (m, 1H), 3.96-3.99 (m, 4H), 3.33-3.35
(m, 1H), 3.13-3.15 (m, 1H), 3.02-3.07 (m, 1H), 2.00-2.03 (m, 2H),
1.25-1.29 (m, 1H), 1.11 (s, 3H), 0.78-0.80 (m, 1H), 0.56 (s, 3H),
0.41-0.43 (m, 2H), 0.20-0.21 (m, 1H), 0.06-0.08 (m, 1H).
Preparation of Compound 105-E
[1737] To a solution of compound 105-D (300 mg, 0.82 mmol, 1.0 eq)
in THF 5 mL was added HCl (1 mL, 12M). The mixture was stirred at
20.degree. C. for 14 hours. LCMS (19165-7-1A) showed compound 105-D
was consumed completely. The mixture was poured into water 20 mL,
and adjusted to pH=8 with Sat. NaHCO.sub.3. The mixture was
extracted with EtOAc (40 mL), washed with brine 20 mL. The organic
layer was dried over anhydrous Na.sub.2SO.sub.4, filtered, and the
filtrate was concentrated to get compound 105-E (250 mg, 94.7%
yield) as yellow oil, which was confirmed by HNMR.
[1738] LCMS: (M+H: 324.0).
[1739] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39-7.41 (m,
2H), 7.29-7.33 (m, 2H), 7.23-7.26 (m, 1H), 6.21-6.25 (m, 1H),
3.85-3.88 (m, 1H), 3.39-3.45 (m, 1H), 3.00-3.01 (m, 1H), 2.94-2.98
(m, 1H), 2.68-2.72 (m, 1H), 2.35-2.46 (m, 2H), 1.87-1.93 (m, 2H),
1.71-1.77 (m, 2H), 1.40 (s, 3H), 1.28 (s, 3H), 0.78-0.82 (m, 1H),
0.34-0.44 (m, 2H), 0.16-0.18 (m, 1H), 0.07-0.08 (m, 1H).
Preparation of Compound 105-F
[1740] To a solution of compound 105-E (250 mg, 0.78 mmol, 1.0 eq)
in HCO.sub.2Et 5 mL was added NaOMe (0.4 mL, 5.4M in MeOH) at
20.degree. C. The mixture was stirred at 20.degree. C. for 14
hours. LCMS (19165-10-1A) showed compound 105-E was consumed
completely. The mixture was poured into water 20 mL, and adjusted
to pH=5 with 1N HCl. The mixture was extracted with EtOAc (40 mL),
washed with brine 20 mL. The organic layer was dried over anhydrous
Na.sub.2SO.sub.4, filtered, and the filtrate was concentrated to
get compound 105-F (250 mg, 92.3% yield) as yellow solid, which was
used to next step directly.
[1741] LCMS: (M+H: 352.1).
Preparation of Compound 105-G
[1742] To a solution of compound 105-F (250 mg, 0.71 mmol, 1.0 eq)
in 5 mL of EtOH/H2O (V:V=5:1) was added hydrochloride hydroxylamine
(74 mg, 1.07 mmol, 1.5 eq). The resulting mixture was stirred at
50.degree. C. for 14 hours. LCMS (19165-16-1A) showed compound
105-F was consumed completely. The mixture was concentrated, and
the residue was purified by pre-HPLC (Mobile phase A: water (10 mM
NH4HCO3)-ACN, Mobile phase B: acetonitrile; Column: Xtimate C18
150*25 mm*5 um, Detection wavelength: 220 nm) to get compound 105-G
(100 mg, 40.3% yield) as white solid, which was confirmed by HNMR
(19165-16-1C).
[1743] LCMS: (M+H: 349.1).
[1744] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.20 (d, J=2.4
Hz, 1H), 7.14-7.21 (m, 5H), 6.08-6.13 (m, 1H), 4.38-4.23 (m, 1H),
4.17-4.22 (m, 1H), 3.87-3.91 (m, 1H), 3.53-3.56 (m, 1H), 3.19-3.22
(m, 1H), 2.81-2.85 (m, 1H), 1.52 (s, 3H), 1.00-1.01 (m, 1H), 0.88
(s, 3H), 0.48-0.50 (m, 2H), 0.20-0.29 (m, 2H).
Preparation of Compound 105-H
[1745] To a solution of compound 105-G (100 mg, 0.29 mmol, 1.0 eq)
in MeOH 2 mL was added NaOMe/MeOH (0.2 mL, 3.0 eq, 0.86 mmol,
5.4M). The resulting mixture was stirred at 20.degree. C. for 14
hours. LCMS (19165-25-1A) showed compound 15-G was consumed
completely. The mixture was adjusted to pH=5 with 1N HCl, and
extracted with EtOAc (20 mL). The organic layer was washed with
brine (20 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered, and
the filtrate was concentrated to get compound 105-H (90 mg, 90.0%
yield) as a yellow solid, which was used to next step directly.
[1746] LCMS: (M+H: 349.1).
Preparation of 105-Ent1 and 105-Ent2
[1747] To a solution of compound 15-H (90 mg, 0.26 mmol, 1.0 eq) in
toluene 2 mL was added DDQ (88 mg, 0.39 mmol, 1.5 eq). The mixture
was stirred at 110.degree. C. for 1 hour. TLC (PE/EtOAc=2/1,
Rf=0.5) showed compound 9 was consumed completely. The mixture was
concentrated to get a residue, and the residue was purified by
pre-TLC PE/EtOAc=2/1 to get a racemic compound, which was further
purified by SFC (column: AD (250 mm*30 mm, 10 um), condition:
Neu-MeOH) to give 105-Ent1 (17 mg, 38.0% in yield) and 105-Ent2 (17
mg, 38.0% in yield) as a white solids.
Spectra for 105-Ent1
[1748] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.83 (s, 1H),
7.31-7.39 (m, 5H), 6.20-6.22 (m, 1H), 4.25-4.30 (m, 1H), 4.03-4.09
(m, 1H), 3.35-3.38 (m, 1H), 3.13-3.18 (m, 1H), 1.45 (s, 3H),
0.88-0.89 (m, 4H), 0.44-0.52 (m, 2H), 0.22-0.24 (m, 1H), 0.10-0.13
(m, 1H).
[1749] HPLC: (Purity: 98.48%)
[1750] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.6%)
[1751] LCMS: (M+H: 347.1).
Spectra for 105-Ent2
[1752] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.31-7.39 (m, 5H), 6.20-6.22 (m, 1H), 4.25-4.30 (m, 1H), 4.03-4.09
(m, 1H), 3.36-3.41 (m, 1H), 3.13-3.18 (m, 1H), 1.45 (s, 3H),
0.88-0.89 (m, 4H), 0.43-0.51 (m, 2H), 0.22-0.24 (m, 1H), 0.11-0.13
(m, 1H).
[1753] HPLC: (Purity: 100%).
[1754] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
100%).
[1755] LCMS: (M+H: 347.0).
Example 89: Synthesis of Compounds 106-Ent1 and 106-Ent2
##STR00132##
[1757] Compounds 106-Ent1 and 106-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2.
Procedure for the Synthesis of Compound 106-A:
[1758] To a solution of compound 105-C (400 mg, 1.28 mmol, 1.0 eq)
in DMF 4 mL was added NaH (102 mg, 2.56 mmol, 2.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
1-bromo-2-methoxyethane (355 mg, 2.56 mmol, 2.0 eq) was added to
the mixture. The resulting mixture was stirred at 20.degree. C. for
14 hours. LCMS showed compound 105-C was consumed completely. The
mixture was poured into water 50 mL, and filtered. The cake was
dried to get compound 106-A (300 mg, 69.3% in yield) as yellow
solid.
[1759] LCMS: (M+H: 372.1).
[1760] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.41-7.43 (m,
2H), 7.28-7.33 (m, 2H), 7.20-7.23 (m, 1H), 5.95-5.96 (m, 1H),
4.33-4.38 (m, 1H), 4.14-4.16 (m, 1H), 3.93-3.99 (m, 4H), 3.64-3.69
(m, 1H), 3.43-3.47 (m, 1H), 3.33-3.37 (m, 1H), 3.23-3.28 (m, 1H),
3.22 (s, 3H), 3.11-3.15 (m, 1H), 2.00-2.05 (m, 2H), 1.71-1.74 (m,
1H), 1.11 (s, 3H), 0.55 (s, 3H).
Procedure for the Purification and Chiral Separation of Compounds
106-Ent1 and 106-Ent2:
[1761] The crude DDQ oxidation mixture was concentrated to get a
residue, and the residue was purified by prep-TLC PE/EtOAc=2/1 to
get a racemic compound, which was further purified by SFC (column:
AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to give 106-Ent1 (10
mg, 18.3% in yield) and 106-Ent2 (10 mg, 18.3% in yield) as a white
solid.
Spectra for 106-Ent1
[1762] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.80 (s, 1H),
7.31-7.38 (m, 5H), 6.15-6.16 (m, 1H), 4.33-4.38 (m, 1H), 4.14-4.15
(m, 1H), 3.64-3.66 (m, 1H), 3.49-3.50 (s, 1H), 3.37-3.40 (m, 2H),
3.22 (s, 3H), 1.44 (s, 3H), 0.86 (s, 3H).
[1763] HPLC: (Purity: 99.12%)
[1764] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.48%)
[1765] LCMS: (M+H: 351.1).
Spectra for 106-Ent2
[1766] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.79 (s, 1H),
7.31-7.38 (m, 5H), 6.15-6.16 (m, 1H), 4.33-4.37 (m, 1H), 4.14-4.15
(m, 1H), 3.64-3.66 (m, 1H), 3.49-3.51 (s, 1H), 3.36-3.40 (m, 2H),
3.22 (s, 3H), 1.44 (s, 3H), 0.86 (s, 3H).
[1767] HPLC: (Purity: 100%).
[1768] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
100%).
[1769] LCMS: (M+H: 351.0).
Example 90: Synthesis of Compounds 107-Ent1 and 107-Ent2
##STR00133##
[1771] Compounds 107-Ent1 and 107-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2.
Procedure for the Synthesis of Compound 107-A:
[1772] To a solution of compound 105-C (300 mg, 0.96 mmol, 1.0 eq)
in DMF 10 mL was added NaH (115 mg, 2.88 mmol, 3.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
(bromomethyl)benzene (328 mg, 1.92 mmol, 2.0 eq) was added to the
mixture. The resulting mixture was stirred at 20.degree. C. for 14
hours. LCMS showed compound 105-A was consumed completely. The
mixture was poured into water 50 mL, and filtered. The cake was
dried to get compound 107-A (320 mg, 82.9% in yield) as yellow
solid, which was used to next step directly.
[1773] LCMS: (M+H: 404.1).
Procedure for the Purification and Chiral Separation of Compounds
107-Ent1 and 107-Ent2:
[1774] The DDQ oxidation mixture was concentrated to get a residue,
and the residue was purified by prep-TLC PE/EtOAc=2/1 to get a
racemic compound, which was further purified by SFC (column: AD
(250 mm*30 mm, 10 um), condition: Neu-MeOH) to give 107-Ent1 (23
mg, 42.0% in yield) and 107-Ent2 (24 mg, 43.9% in yield) as white
solids.
Spectra for 107-Ent1
[1775] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.89 (s, 1H),
7.34-7.39 (m, 5H), 7.25-7.27 (m, 3H), 7.01-7.02 (m, 2H), 6.13-6.14
(m, 1H), 4.73 (d, J=14.4 Hz, 1H), 4.40 (d, J=14.4 Hz, 1H),
3.97-4.03 (m, 1H), 3.83-3.87 (m, 1H), 1.42 (s, 3H), 0.88 (s,
3H).
[1776] HPLC: (Purity: 99.29%).
[1777] SFC: (Column: ChiralCel OJ-H 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
100%)
[1778] LCMS: (M+H: 383.0).
Spectra for 107-Ent2
[1779] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.89 (s, 1H),
7.35-7.39 (m, 5H), 7.25-7.27 (m, 3H), 7.01-7.02 (m, 2H), 6.13-6.14
(m, 1H), 4.73 (d, J=14.4 Hz, 1H), 4.40 (d, J=14.4 Hz, 1H),
3.98-4.03 (m, 1H), 3.83-3.87 (m, 1H), 1.42 (s, 3H), 0.88 (s,
3H).
[1780] HPLC: (Purity: 100%).
[1781] SFC: (Column: ChiraCel OJ-H 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 2.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.10%).
[1782] LCMS: (M+H: 383.0).
Example 91: Synthesis of Compounds 108-Ent1 and 108-Ent2
##STR00134##
[1784] Compounds 108-Ent1 and 108-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of Compound 108-A:
[1785] To a solution of compound 105-C (400 mg, 1.28 mmol, 1 eq.)
in 10 mL of DMF was added NaH (102 mg, 2.55 mmol, 2.0 eq) under
ice-bath (0.about.5.degree. C.), then the mixture was stirred at
0.about.5.degree. C. .degree. C. for 1 h. Subsequently,
1-Bromo-2-methylpropane (349 mg, 2.55 mmol, 2.0 eq) was added and
the resulting mixture was stirred at 20.degree. C. for 18 h. TLC
(PE:EA=1:1) showed one new spot was observed. The mixture was
poured into 60 mL of ice-water and 10 mL of brine, extracted with
EtOAc (30 mL.times.3). The combined organic layers were washed with
brine (30 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered and
concentrated. The residue was purified by flash column
(PE:EtOAc=90:10.about.80:20.about.60:40) to supply compound 108-A
(400 mg, 84.7% yield) as white solid.
[1786] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.40-7.45 (m,
2H), 7.30 (m, 2H), 7.17-7.22 (m, 1H), 5.99 (dd, J=2.14, 4.58 Hz,
1H), 4.21 (dd, J=2.08, 17.85 Hz, 1H), 3.89-4.01 (m, 5H), 3.54 (m,
1H), 3.11-3.19 (m, 1H), 2.71 (m, 1H), 1.85-2.03 (m, 3H), 1.68-1.74
(m, 1H), 1.12 (s, 3H), 0.82 (d, J=6.72 Hz, 3H), 0.63 (d, J=6.60 Hz,
3H), 0.58 (s, 3H).
Procedure for the Purification and Chiral Separation of Compounds
108-Ent1 and 108-Ent2:
[1787] Upon reaction completion, the DBMDH reaction mixture was
diluted with water (30 mL), extracted with EtOAc (20 mL.times.3).
The combined organic layers were washed with brine (20 mL), dried
over anhydrous Na.sub.2SO.sub.4, filtered, concentrated and
purified by prep-TLC (PE:EtOAc=2:1) to supply racemate (.about.45
mg) which was separated by SFC (condition: Neu-EtOH, column: AD 250
mm*30 mm; 10 um) to supply 108-Ent1 (9 mg, 12.8% yield, Rt=3.152
min) as white solid and 108-Ent2 (8 mg, 11.4% yield, Rt=4.179 min)
as white solid
Spectra of 108-Ent1:
[1788] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.29-7.39 (m, 4H), 6.22 (dd, J=1.83, 5.38 Hz, 1H), 4.14 (dd,
J=1.96, 18.22 Hz, 1H), 3.87 (dd, J=5.50, 18.22 Hz, 1H), 3.48 (dd,
J=8.62, 13.39 Hz, 1H), 2.88 (dd, J=6.66, 13.39 Hz, 1H), 1.84-1.97
(m, 1H), 1.46 (s, 3H), 0.93 (s, 3H), 0.81 (d, J=6.72 Hz, 3H), 0.63
(d, J=6.60 Hz, 3H)
[1789] HPLC: (purity: 97.57%)
[1790] SFC: (purity: 100%)
[1791] LCMS: (M+H: 349.1)
Spectra of 108-Ent2:
[1792] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.29-7.39 (m, 4H), 6.22 (dd, J=1.83, 5.38 Hz, 1H), 4.14 (dd,
J=1.96, 18.22 Hz, 1H), 3.87 (dd, J=5.50, 18.22 Hz, 1H), 3.48 (dd,
J=8.56, 13.45 Hz, 1H), 2.88 (dd, J=6.60, 13.45 Hz, 1H), 1.85-1.96
(m, 1H), 1.46 (s, 3H), 0.91-0.94 (m, 3H), 0.81 (d, J=6.72 Hz, 3H),
0.63 (d, J=6.60 Hz, 3H)
[1793] HPLC: (Purity: 98.05%)
[1794] SFC: (purity: 99.894%)
[1795] LCMS: (M+H: 349.1)
Example 92: Synthesis of Compounds 109-Ent1 and 109-Ent2
##STR00135##
[1797] Compounds 109-Ent1 and 109-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of Compound 109-A:
[1798] To a solution of compound 105-C (400 mg, 1.28 mmol, 1.0 eq)
in DMF 10 mL was added NaH (102 mg, 2.56 mmol, 2.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
bromocyclopentane (286 mg, 1.92 mmol, 2.0 eq) was added to the
mixture. The resulting mixture was stirred at 20.degree. C. for 14
hours. LCMS showed compound 105-C was consumed completely. The
mixture was poured into water 20 mL, and filtered. The cake was
purified by silica gel PE/EtOAc from 10/1 to 3/1 to get compound 5
(170 mg, 50.0% in yield) as yellow solid, which was used to next
step directly.
[1799] LCMS: (M+H: 382.2).
Procedure for the Purification and Chiral Separation of Compounds
109-Ent1 and 109-Ent2:
[1800] Upon completion, the DBMDH reaction mixture was concentrated
to get a residue, which was purified by pre-HPLC (Mobile phase A:
water (0.05% HCl)-ACN, Mobile phase B: acetonitrile; Column:
YMC-Actus Triart C18 100*30 mm*5 um, Detection wavelength: 220 nm)
to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to 109-Ent1
(15 mg, 43.1% in yield) as a white solid and 109-Ent2 (15 mg, 43.1%
in yield) as a white solid.
Spectra for 109-Ent1
[1801] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.31-7.37 (m, 5H), 6.22-6.24 (m, 1H), 4.65-4.73 (m, 1H), 3.85-4.01
(m, 2H), 1.86-1.87 (m, 1H), 1.61-1.70 (m, 5H), 1.45-1.48 (m, 5H),
0.90 (d, J=5.6 Hz, 3H).
[1802] HPLC: (Purity: 100%).
[1803] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.56%).
[1804] LCMS: (M+H: 361.1).
Spectra for 109-Ent2
[1805] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.31-7.37 (m, 5H), 6.22-6.24 (m, 1H), 4.69-4.71 (m, 1H), 3.85-4.01
(m, 2H), 1.86-1.87 (m, 1H), 1.61-1.70 (m, 5H), 1.45-1.47 (m, 5H),
0.90 (d, J=5.6 Hz, 3H).
[1806] HPLC: (Purity: 100%).
[1807] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.10%).
[1808] LCMS: (M+H: 361.1).
Example 93: Synthesis of Compounds 110-Ent1 and 110-Ent2
##STR00136##
[1810] Compounds 110-Ent1 and 110-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of Compound 110-A:
[1811] To a solution of compound 105-A (300 mg, 0.96 mmol, 1.0 eq)
in DMF 10 mL was added NaH (76 mg, 1.91 mmol, 2.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
2-bromopropane (235 mg, 1.91 mmol, 2.0 eq) was added to the
mixture. The resulting mixture was stirred at 20.degree. C. for 14
hours. LCMS showed compound 105-A was consumed completely. The
mixture was poured into water 20 mL, and filtered. The cake was
dried to get compound 110-A (170 mg, 50.0% in yield) as yellow
solid.
[1812] LCMS: (M+H: 356.2).
[1813] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.39-7.41 (m,
2H), 7.29-7.33 (m, 2H), 7.21-7.23 (m, 1H), 6.02-6.03 (m, 1H),
4.67-4.72 (m, 1H), 3.94-4.01 (m, 6H), 3.15-3.18 (m, 1H), 2.00-2.03
(m, 2H), 1.74-1.75 (m, 1H), 1.26-1.30 (m, 1H), 1.12-1.13 (m, 6H),
1.02 (d, J=6.8 Hz, 3H), 0.57 (s, 3H).
Procedure for the Purification and Chiral Separation of Compounds
110-Ent1 and 110-Ent2:
[1814] Upon completion, the DBMDH reaction mixture was concentrated
to get a residue, which was purified by prep-HPLC (Mobile phase A:
water (0.05% HCl)-ACN, Mobile phase B: acetonitrile; Column:
YMC-Actus Triart C18 100*30 mm*5 um, Detection wavelength: 220 nm)
to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to 110-Ent1
(15 mg, 43.1% in yield) as a white solid and 110-Ent2 (15 mg, 43.1%
in yield) as a white solid.
Spectra 110-Ent1
[1815] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.29-7.39 (m, 5H), 6.22-6.26 (m, 1H), 4.63-4.70 (m, 1H), 3.91-3.93
(m, 2H), 1.45 (s, 3H), 1.14 (d, J=6.8 Hz, 3H), 1.04 (d, J=7.2 Hz,
3H), 0.89 (s, 3H).
[1816] HPLC: (Purity: 99.36%).
[1817] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.76%).
[1818] LCMS: (M+H: 335.1).
Spectra for 110-Ent2
[1819] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.82 (s, 1H),
7.29-7.39 (m, 5H), 6.22-6.24 (m, 1H), 4.63-4.70 (m, 1H), 3.86-3.97
(m, 2H), 1.45 (s, 3H), 1.14 (d, J=6.8 Hz, 3H), 1.04 (d, J=7.2 Hz,
3H), 0.89 (s, 3H).
[1820] HPLC: (Purity: 100%).
[1821] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.67%).
[1822] LCMS: (M+H: 335.1).
Example 94: Synthesis of Compounds 111-Ent1 and 111-Ent2
##STR00137##
[1824] Compounds 111-Ent1 and 111-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of Compound 111-A:
[1825] A mixture of compound 105-C (400 mg, 1.28 mmol, 1.0 eq),
2-cyclopropyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (429 mg, 2.56
mmol, 2.0 eq), Cs.sub.2CO.sub.3 (208 mg, 0.64 mmol, 0.5 eq),
pyridine (303 mg, 3.84 mmol, 3.0 eq) and Cu(OAc).sub.2 (231 mg,
1.28 mmol, 1.0 eq) in toluene 2 mL. The mixture was stirred at
110.degree. C. for 14 hours. The mixture was concentrated to get a
residue, which was purified by prep-HPLC (Mobile phase A: water (10
mM NH.sub.4HCO.sub.3)-ACN, Mobile phase B: acetonitrile; Column:
Xtimate C18 150*25 mm*5 um, Detection wavelength: 220 nm) to get
compound 111-A (250 mg, 55.4% in yield) as white solid.
[1826] LCMS: (M+H: 354.1).
[1827] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.37-7.39 (m,
2H), 7.28-7.32 (m, 2H), 7.20-7.22 (m, 1H), 5.97-5.99 (m, 1H),
4.05-4.08 (m, 1H), 3.96-4.00 (m, 5H), 3.11-3.14 (m, 1H), 2.60-2.63
(m, 1H), 1.99-2.05 (m, 2H), 1.73-1.75 (m, 1H), 1.13 (s, 3H),
0.70-0.73 (m, 2H), 0.58-0.60 (m, 1H), 0.56 (s, 3H), 0.34-0.36 (m,
1H).
Procedure for the Purification and Chiral Separation of Compounds
111-Ent1 and 111-Ent2:
[1828] Upon completion, the DBMDH reaction mixture was concentrated
to get a residue, which was purified by pre-HPLC (Mobile phase A:
water (0.05% HCl)-ACN, Mobile phase B: acetonitrile; Column:
YMC-Actus Triart C18 100*30 mm*5 um, Detection wavelength: 220 nm)
to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to 111-Ent1
(15 mg, 30.1% in yield) as a white solid and 111-Ent2 (15 mg, 30.1%
in yield) as a white solid.
Spectra for 111-Ent1
[1829] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.79 (s, 1H),
7.27-7.36 (m, 5H), 6.17-6.19 (m, 1H), 4.03-4.09 (m, 1H), 3.91-3.96
(m, 1H), 2.65-2.71 (m, 1H), 1.44 (s, 3H), 0.88 (s, 3H), 0.79-0.84
(m, 2H), 0.62-0.63 (m, 1H), 0.37-0.38 (m, 1H).
[1830] HPLC: (Purity: 99.29%).
[1831] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.26%).
[1832] LCMS: (M+H: 333.1).
Spectra for 111-Ent2
[1833] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.78 (s, 1H),
7.27-7.36 (m, 5H), 6.17-6.19 (m, 1H), 4.03-4.08 (m, 1H), 3.91-3.96
(m, 1H), 2.65-2.71 (m, 1H), 1.44 (s, 3H), 0.88 (s, 3H), 0.78-0.82
(m, 2H), 0.62-0.63 (m, 1H), 0.37-0.38 (m, 1H).
[1834] HPLC: (Purity: 99.34%).
[1835] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
99.17%).
[1836] LCMS: (M+H: 333.0).
Example 95: Synthesis of Compounds 112-Ent1 and 112-Ent2
##STR00138##
[1838] Compounds 112-Ent1 and 112-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of Compound 112-A:
[1839] To a solution of compound 105-C (300 mg, 0.96 mmol, 1.0 eq)
in DMF 6 mL was added NaH (77 mg, 1.92 mmol, 2.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
Subsequently, 3-(chloromethyl) pyridine (182 mg, 1.44 mmol, 1.5 eq)
was added to the mixture. The resulting mixture was stirred at
20.degree. C. for 14 hours. LCMS showed compound 105-C was consumed
completely. The mixture was poured into water 30 mL, and filtered.
The cake was dried to get compound 112-A (350 mg, 90.4% in yield)
as a yellow solid.
[1840] LCMS: (M+H: 405.2).
[1841] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.47-8.48 (m,
1H), 8.37 (d, J=2.0 Hz, 1H), 7.39-7.41 (m, 2H), 7.30-7.34 (m, 3H),
7.12-7.14 (m, 1H), 5.93-5.94 (m, 1H), 4.79 (d, J=14.8 Hz, 1H), 4.23
(d, J=14.8 Hz, 1H), 3.89-4.03 (m, 6H), 3.17-3.23 (m, 1H), 2.00-2.01
(m, 1H), 1.72-1.75 (m, 1H), 1.09 (s, 3H), 0.83-0.88 (m, 2H), 0.56
(s, 3H).
Procedure for the Purification and Chiral Separation of Compounds
112-Ent1 and 112-Ent2:
[1842] Upon completion, the DBMDH reaction mixture was concentrated
to get a residue, which was purified by pre-HPLC (Mobile phase A:
water (0.05% HCl)-ACN, Mobile phase B: acetonitrile; Column:
Phenomenex Synergi C18 150*30 mm*4 um, Detection wavelength: 220
nm) to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to 112-Ent1
(12 mg, 30.0% in yield) as a yellow solid and 112-Ent2 (12 mg,
30.0% in yield) as a yellow solid.
Spectra for 112-Ent1
[1843] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.84 (s, 1H),
8.52 (d, J=3.6 Hz, 1H), 8.36 (s, 1H), 7.32-7.39 (m, 6H), 7.18-7.19
(m, 1H), 6.15-6.17 (m, 1H), 4.74 (d, J=14.8 Hz, 1H), 4.40 (d,
J=14.8 Hz, 1H), 4.03-4.08 (m, 1H), 3.86-3.90 (m, 1H), 1.43 (s, 3H),
0.89 (s, 3H).
[1844] HPLC: (Purity: 100%).
[1845] SFC: (Column: ChiralPak IC 100.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: Methanol (0.1% ethanolamine) Flow rate: 3
mL/min Column temp.: 40.degree. C. (ee: 100%).
[1846] LCMS: (M+H: 384.1).
Spectra for 112-Ent2
[1847] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.84 (s, 1H),
8.52 (d, J=3.6 Hz, 1H), 8.36 (s, 1H), 7.32-7.39 (m, 6H), 7.18-7.19
(m, 1H), 6.15-6.17 (m, 1H), 4.74 (d, J=14.8 Hz, 1H), 4.40 (d,
J=14.8 Hz, 1H), 4.03-4.08 (m, 1H), 3.86-3.91 (m, 1H), 1.43 (s, 3H),
0.89 (s, 3H).
[1848] HPLC: (Purity: 100%).
[1849] SFC: (Column: ChiralPak IC 100.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: Methanol (0.1% ethanolamine) Flow rate: 3
mL/min Column temp.: 40.degree. C. (ee: 95.26%).
[1850] LCMS: (M+H: 384.1).
Example 96: Synthesis of Compounds 113-Ent1 and 113-Ent2
##STR00139##
[1852] Compounds 113-Ent1 and 113-Ent2 can be made in a manner
analogous to that described for 105-Ent1 and 105-Ent2. The
alternative DBMDH oxidation procedure described in Scheme 98 was
used in the final step.
Procedure for the Synthesis of 113-A
[1853] To a solution of compound 105-C (500 mg, 1.60 mmol, 1.0 eq)
in DMF 10 mL was added NaH (320 mg, 8.0 mmol, 5.0 eq) at 0.degree.
C. The mixture was stirred at 0.degree. C. for 1 hour.
Subsequently, bromocyclobutane (1.1 g, 8.0 mmol, 5.0 eq) was added
to the mixture. The resulting mixture was stirred at 20.degree. C.
for 14 hours. TLC (PE/EtOAc=1/1, Rf=0.5) showed compound 105-C was
consumed completely. The mixture was poured into water 20 mL, and
filtered. The cake was purified by silica gel PE/EtOAc from 10/1 to
3/1 to get compound 113-A (150 mg, 25.6% yield) as yellow solid,
which was used to next step directly.
[1854] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.38-7.40 (m,
2H), 7.28-7.31 (m, 2H), 7.20-7.22 (m, 1H), 6.02-6.04 (m, 1H),
4.63-4.72 (m, 1H), 4.07-4.09 (m, 2H), 3.92-3.98 (m, 4H), 3.12-3.15
(m, 1H), 1.97-2.14 (m, 6H), 1.64-1.72 (m, 3H), 1.12 (s, 3H), 0.56
(s, 3H).
Procedure for the Purification and Chiral Separation of Compounds
113-Ent1 and 113-Ent2:
[1855] Upon completion, the DBMDH reaction mixture was concentrated
to get a residue, which was purified by pre-HPLC (Mobile phase A:
water (0.05% HCl)-ACN, Mobile phase B: acetonitrile; Column:
YMC-Actus Triart C18 100*30 mm*5 um, Detection wavelength: 220 nm)
to get a racemic compound, which was further purified by SFC
(column: AD (250 mm*30 mm, 10 um), condition: Neu-MeOH) to 113-Ent1
(13 mg, 32.7% yield) as a white solid and 113-Ent2 (13 mg, 32.7%
yield) as a white solid.
Spectra for 113-Ent1
[1856] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.79 (s, 1H),
7.29-7.39 (m, 5H), 6.23-6.25 (m, 1H), 4.65-4.74 (m, 1H), 4.03-4.04
(m, 2H), 2.12-2.22 (m, 3H), 2.02-2.10 (m, 1H), 1.68-1.71 (m, 2H),
1.45 (s, 3H), 0.89 (s, 3H).
[1857] HPLC: (Purity: 100%).
[1858] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
100%).
[1859] LCMS: (M+H: 347.1).
Spectra for 113-Ent2
[1860] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.79 (s, 1H),
7.31-7.39 (m, 5H), 6.23-6.25 (m, 1H), 4.65-4.74 (m, 1H), 4.03-4.04
(m, 2H), 2.12-2.15 (m, 3H), 2.02-2.10 (m, 1H), 1.68-1.71 (m, 2H),
0.90 (d, J=5.6 Hz, 3H), 1.45 (s, 3H), 0.89 (s, 3H).
[1861] HPLC: (Purity: 100%).
[1862] SFC: (Column: ChiralPak AD-3 150.times.4.6 mm I.D., 3 um
Mobile phase: A: CO2 B: ethanol (0.05% DEA) Gradient: from 5% to
40% of B in 5 min and hold 40% for 2.5 min, then 5% of B for 1.5
min Flow rate: 2.5 mL/min Column temp.: 40.degree. C. (ee:
100%).
[1863] LCMS: (M+H: 347.1).
Example 97: Synthesis of Compounds 114-Ent1 and 114-Ent2
##STR00140##
[1864] Preparation of Compound 114-A.
[1865] To a solution of compound 103-F (800 mg, 3.86 mmol, 1 eq.)
in 10 mL of THF was added glycol (4.8 g, 77.2 mmol, 20 eq) and
BF.sub.3.Et.sub.2O (274 mg, 1.93 mmol, 0.5 eq) then the mixture was
stirred at 18.about.28.degree. C. for 18 h. TLC (PE:EA=1:2) showed
one new spot was observed. The mixture was stirred at
18.about.28.degree. C. for 2 days. TLC (PE:EA=1:2) showed compound
103-F remained, 114-A product was detected by LCMS. The mixture was
diluted with water (100 mL), extracted with EtOAc (50 mL.times.3).
The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=60:40.about.50:50.about.20:80)
to to give compound 114-A (540 mg, 55.8% yield) as pale-yellow
solid.
[1866] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 6.15 (br s, 1H),
5.71 (br d, J=4.85 Hz, 1H), 3.81-4.03 (m, 6H), 1.89-2.10 (m, 3H),
1.64-1.72 (m, 1H), 1.46 (s, 3H), 1.29 (s, 3H), 1.13 (s, 3H).
Preparation of Compound 114-B
[1867] To a solution of compound 114-A (300 mg, 1.2 mmol, 1 eq.) in
5 mL of DMF was added NaH (86 mg, 2.16 mmol, 1.8 eq), then the
mixture was stirred at 18.about.28.degree. C. for 1.5 h. Ethyl
iodide (374 mg, 2.4 mmol, 2.0 eq, 0.19 mL) was added and the
resulting mixture was stirred at 18.about.28.degree. C. for 18 h.
TLC (PE:EA=1:2) showed compound 114-A was consumed completely. The
mixture was poured into 30 mL of ice-water and 10 mL of brine,
extracted with EtOAc (20 mL.times.3). The combined organic layers
were washed with brine (20 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=70:30.about.50:50) to supply
compound 114-B (200 mg, 59.5% yield) as pale-yellow solid.
[1868] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.68 (dd, J=1.76,
5.27 Hz, 1H), 3.90-4.02 (m, 5H), 3.71-3.79 (m, 1H), 3.51-3.61 (m,
1H), 3.27 (qd, J=7.06, 13.71 Hz, 1H), 1.98-2.11 (m, 2H), 1.87-1.97
(m, 1H), 1.63-1.68 (m, 1H), 1.40 (s, 3H), 1.28 (s, 3H), 1.12 (s,
3H), 1.12 (t, J=8 Hz, 3H).
Preparation of Compound 114-C
[1869] To a solution of compound 114-B (360 mg, 1.28 mmol, 1 eq.)
in 5 mL of THF was added HCl aq. (5 mL, 10%), then the mixture was
stirred at 70.degree. C. for 18 h. TLC (PE:EA=1:1) showed compound
114-B was consumed completely. The mixture was concentrated; the
residue was diluted with EtOAc (20 mL) and water (25 mL) and
separated. The aqueous phase was extracted with EtOAc (20
mL.times.2). The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=60:40.about.50:50) to give
compound 114-C (230 mg, 76.7% yield) as pale-yellow gum.
[1870] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.78 (dd, J=1.76,
5.73 Hz, 1H), 4.04 (dd, J=1.87, 17.53 Hz, 1H), 3.75 (dd, J=5.73,
17.42 Hz, 1H), 3.62 (m, 1H), 3.36 (m, 1H), 2.55-2.65 (m, 1H),
2.47-2.65 (m, 1H), 2.47-2.54 (m, 1H), 2.32-2.44 (m, 1H), 1.34 (s,
3H), 1.29 (s, 3H), 1.25 (s, 3H), 1.16 (t, J=7.17 Hz, 3H).
Preparation of Compound 114-D
[1871] To a solution of compound 114-C (230 mg, 0.98 mmol, 1 eq.)
in 5 mL of ethyl formate was added NaOMe (0.62 mL, 3.33 mmol, 3.4
eq. 5.4 M in methanol) under ice-bath The mixture was stirred at
28.degree. C. under N.sub.2 for 1 h. TLC (PE:EA=1:1) showed
compound 114-C was consumed completely. The mixture was poured into
20 mL of ice-water slowly, adjusted pH to 4.about.5 by adding 1M
HCl aq., extracted with EtOAc (15 mL.times.2). The combined organic
layers were washed with brine (20 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated to give crude compound
114-D (240 mg) as pale-yellow gum.
Preparation of Compound 114-E
[1872] To a solution of compound 114-D (240 mg, 0.91 mmol, 1.0 eq.)
in EtOH (5 mL) and H.sub.2O (1 mL) was added hydrochloride
hydroxylamine (83 mg, 1.19 mmol, 1.3 eq.). After addition the
mixture was stirred at 70.degree. C. for 18 h. TLC (PE:EA=1:1)
showed the starting materials were consumed completely. The mixture
was concentrated, the residue was diluted with water (20 mL),
extracted with EtOAc (15 mL.times.3). The combined organic layers
were washed with brine (20 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated to supply crude
compound 114-E (220 mg) as a pale-yellow solid.
[1873] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.12 (s, 1H),
5.86 (dd, J=2.32, 4.30 Hz, 1H), 4.01-4.09 (m, 1H), 3.85-3.94 (m,
1H), 3.52-3.62 (m, 1H), 3.45 (m, 1H), 3.00 (d, J=15.66 Hz, 1H),
2.60 (d, J=15.66 Hz, 1H), 1.56 (s, 3H), 1.49 (s, 3H), 1.31 (s, 3H),
1.19 (t, J=7.17 Hz, 3H)
Preparation of Compound 114-F
[1874] To a solution of compound 114-E (220 mg, 0.84 mmol, 1 eq.)
in 2 mL of methanol was added NaOMe (2.1 mL, 4.2 mmol, 5.0 eq. 2 M
in methanol). After addition the mixture was stirred at
22.about.31.degree. C. for 18 h. TLC (PE:EA=1:1) showed compound
114-E was consumed completely. The mixture was concentrated. The
residue was diluted with water (20 mL), adjusted pH to 5.about.6 by
adding 1M HCl aq., extracted with EtOAc (15 mL.times.3). The
combined organic layers were dried over anhydrous Na.sub.2SO.sub.4,
filtered and concentrated to supply crude compound 114-F (220 mg)
as pale-yellow solid.
Preparation of Compounds 114-Ent1 and 114-Ent2
[1875] To a solution of compound 114-F (220 mg, 0.84 mmol, 1.0 eq.)
in toluene/MeCN (3 mL/3 mL) was added DDQ (286 mg, 1.26 mmol, 1.5
eq.). The mixture was stirred at 90.degree. C. for 1 h. TLC
(PE:EA=1:2) showed compound 114-F remained. The mixture was stirred
at 110.degree. C. for 2 h. TLC (PE:EA=1:2) showed compound 114-F
was consumed completely. The mixture was concentrated and the
residue was diluted with EtOAc (60 mL), washed with saturated
NaHCO.sub.3 (40 mL.times.3), brine (30 mL). The organic phase was
dried over anhydrous Na.sub.2SO.sub.4, filtered, concentrated and
purified by prep-TLC (PE:EtOAc=1:1.5) to supply racemate (90 mg),
which was separated by SFC (condition: Neu-EtOH, column: AY 250
mm*30 mm; 10 um) to supply 114-Ent1 (13 mg, 6.0% yield, Rt=3.399
min) as white solid and 114-Ent2 (20 mg, 9.3% yield, Rt=4.521 min)
as pale-yellow solid
Spectra of Compound 114-Ent1:
[1876] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.23 (s, 1H),
5.92 (dd, J=1.47, 5.87 Hz, 1H), 4.07 (dd, J=1.90, 17.91 Hz, 1H),
3.81 (dd, J=5.93, 17.91 Hz, 1H), 3.36-3.58 (m, 2H), 1.62 (s, 3H),
1.42 (d, J=2.08 Hz, 6H), 1.17 (t, J=7.21 Hz, 3H)
[1877] HPLC: (purity: 100%)
[1878] SFC: (purity: 99.82%)
[1879] LCMS: (M+H: 259.1)
Spectra of Compound 114-Ent2:
[1880] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.23 (s, 1H),
5.92 (dd, J=1.47, 5.87 Hz, 1H), 4.07 (dd, J=1.90, 17.91 Hz, 1H),
3.81 (dd, J=5.93, 17.91 Hz, 1H), 3.37-3.58 (m, 2H), 1.62 (s, 3H),
1.42 (d, J=2.20 Hz, 6H), 1.17 (t, J=7.15 Hz, 3H)
[1881] HPLC: (Purity: 98.69%)
[1882] SFC: (purity: 99.93%)
[1883] LCMS: (M+H: 259.1)
Example 98: Synthesis of Compounds 115-Ent1 and 115-Ent2
##STR00141## ##STR00142##
[1884] Preparation of Compound 115-A
[1885] To the suspension of LAH (1.098 g, 28.9 mmol, 1.2 eq) in 250
mL of anhydrous THF was added compound 103-F (8.6 g, 24.09 mmol,
1.0 eq) in 50 mL of anhydrous THF by dropwise under ice-bath
(0.about.5.degree. C.). After addition the mixture was stirred at
0.about.20.degree. C. for 1.5 h. TLC (PE:EtOAc=3:1) showed compound
103-F was consumed completely. 1.1 mL of water was added slowly
(lots of gas formed), then 1.1 mL of 15% aqueous NaOH and 3.3 mL of
water were added by turn. The mixture was diluted with THF (300 mL)
and stirred with anhydrous Na.sub.2SO.sub.4 (10 g) for 30 min and
filtered with a pad of celite. The solid was washed with EtOAc (300
mL.times.2) and filtered. The combined filtrates was concentrated
under reduced pressure and purified by flash column
(PE:EtOAc=80:20.about.50:50.about.40:60) to supply compound 115-A
(4.5 g, 52.03% yield) as pale-yellow solid.
[1886] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.09-7.19 (m,
1H), 6.45 (m, 2H), 5.66 (m, 1H), 4.77 (d, J=14.8 Hz, 1H), 4.40 (d,
J=14.8 Hz, 1H), 3.80 (s, 6H), 3.72-3.80 (m, 1H), 366-3.74 (m, 1H),
3.31 (m, 1H), 2.20 (m, 1H), 1.82 (m, 2H), 1.63-1.72 (m, 1H), 1.37
(s, 3H), 1.20 (s, 3H), 1.11 (s, 3H).
Preparation of Compound 115-B
[1887] To a solution of compound 115-A (4.3 g, 11.98 mmol, 1.0 eq)
in 80 mL of EtOH was added Pd/C (1.5 g, 10% w/w, water containing
<1%) under Ar atmosphere. The suspension was degassed under
vacuum with Ar and H2 for 3 times each, and then stirred under
H.sub.2 (50 psi) at 40.degree. C. for 16 h. LCMS showed compound
115-A was consumed completely. The mixture was filtered through a
pad of celite, the pad was washed with EtOAc (80 mL.times.2) and
filtered. The combined filtrates were concentrated under reduced
pressure to give crude compound 115-B (3.7 g) as pale-yellow
gum.
[1888] LCMS: (M+H: 362.2)
Preparation of Compound 115-C
[1889] To a solution of compound 115-B (3.5 g, 9.7 mmol, 1.0 eq) in
60 mL of DCM was added DMP (4.93 g, 11.6 mmol, 1.2 eq) under
ice-bath. The mixture was stirred at 18-25.degree. C. for 2.5 h.
TLC (PE:EtOAc=1:1) showed compound 115-B was consumed completely.
The mixture was diluted with saturated aqueous NaHCO.sub.3 (200
mL), filtered through a pad of celite, the DCM phase was separated,
the aqueous phase was extracted with EtOAc (100 mL.times.3), the
combined organic layers were dried over anhydrous Na.sub.2SO.sub.4,
filtered and concentrated. The residue was purified by flash column
(PE:EtOAc=70:30.about.50:50) to give compound 115-C (2.7 g, 79.4%
yield) as pale-yellow gum.
[1890] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 7.09-7.21 (m,
1H), 6.43-6.48 (m, 2H), 4.65 (m, 1H), 4.74 (m, 1H), 3.78-3.83 (m,
6H), 3.16-3.38 (m, 2H), 2.60-2.72 (m, 1H), 2.29-2.53 (m, 2H),
1.68-1.96 (m, 4H), 1.30-1.38 (m, 3H), 1.01-1.10 (m, 6H).
Preparation of Compound 115-D
[1891] Compound 115-C (2.83 g, 7.88 mmol, 1.0 eq.) was added into
30 mL of TFA. The resulting mixture was stirred at 70.degree. C.
for 1.5 h. TLC (PE:EA=1:3) showed compound 115-C was consumed
completely. The mixture was concentrated, the residue was diluted
with water (150 mL) and EtOAc (50 mL), adjusted pH to 7.about.8 by
adding 1M aqueous NaHCO.sub.3, extracted with EtOAc (100
mL.times.6). The combined organic layers were dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by flash column (PE:EtOAc=60:40.about.50:50.about.40:60)
to give compound 115-D (1.5 g, 90.9% yield) as white solid.
Preparation of Compound 115-E
[1892] Compound 115-D (1.45 g, 6.94 mmol, 1 eq.) and compound
BF.sub.3.Et.sub.2O (493 mg, 3.47 mmol, 0.5 eq) were added into
glycol (172 g, 278 mmol, 40 eq, .about.17.2 mL). The mixture was
stirred at 22.about.31.degree. C. for 18 h. TLC (PE:EA=1:5) showed
little compound 115-D remained, one new spot was observed. The
mixture was diluted with water (100 mL), extracted with DCM/MeOH
(60 mL.times.3, V:V=20:1). The combined organic layers were dried
over anhydrous Na.sub.2SO.sub.4, filtered and concentrated. The
residue was purified by flash column (PE:EtOAc=60:40.about.40:60)
to give isomer 115-E (600 mg, 34.2% yield) as white solid and
impure product (900 mg). The impure product (900 mg) was purified
by prep-HPLC (condition: water (10 mM NH4HCO3)-ACN), column:
Xtimate C18 150*25 mm*5 um) to supply isomer 115-F (340 mg, 19.4%
yield) as a white solid.
Spectra of Compound 115-E
[1893] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.55 (br s, 1H),
3.87-3.99 (m, 4H), 3.40-3.54 (m, 2H), 2.42 (m, 1H), 2.10-2.25 (m,
1H), 1.90-2.02 (m, 2H), 1.80 (m, 1H), 1.49 (m, 1H), 1.39 (m, 1H),
1.28 (s, 3H), 1.06 (s, 3H), 0.96 (s, 3H)
Spectra of Compound 115-F
[1894] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 5.54-5.71 (m,
1H), 3.87-4.02 (m, 4H), 3.33-3.41 (m, 1H), 3.22-3.31 (m, 1H),
1.94-2.01 (m, 1H), 1.71-1.90 (m, 5H), 1.57-1.64 (m, 1H), 1.29 (s,
3H), 1.00 (s, 3H), 0.90 (s, 3H).
Preparation of Compound 115-G
[1895] To a solution of compound 115-F (340 mg, 1.34 mmol, 1 eq.)
in 10 mL of THF was added NaH (80.4 mg, 2.01 mmol, 1.5 eq), then
the mixture was stirred at 18-27.degree. C. for 1.5 h. Methyl
iodide (382 mg, 2.69 mmol, 2.0 eq, 170 uL) was added and the
resulting mixture was stirred at 18-27.degree. C. for 18 h. TLC
(PE:EA=1:2) showed one new spot. LCMS indicated completion.
[1896] The mixture was poured into 20 mL of water and 5 mL of
brine, extracted with EtOAc (20 mL.times.4). The combined organic
layers were washed with brine (20 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated to supply crude
compound 115-G (350 mg) as pale-yellow solid.
[1897] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 3.87-4.01 (m,
4H), 3.20-3.35 (m, 2H), 2.85 (s, 3H), 2.03 (m, 1H), 1.70-1.89 (m,
5H), 1.57-1.62 (m, 1H), 1.25 (s, 3H), 1.00 (s, 3H), 0.90 (s,
3H).
Preparation of Compound 115-H
[1898] To a solution of compound 115G (350 mg, 1.31 mmol, 1 eq.) in
5 mL of THF was added HCl aq. (2 mL, 10%), then the mixture was
stirred at 80.degree. C. for 18 h. TLC (PE:EA=1:3) showed compound
115-G was consumed completely. The mixture was diluted with water
(30 mL), extracted with EtOAc (20 mL.times.4). The combined organic
layers were washed with brine (30 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated. The residue was
purified by prep-TLC (PE:EtOAc=1:2) to give compound 115-H (210 mg,
71.9% yield) as a pale-yellow solid.
[1899] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 3.26-3.42 (m,
2H), 2.90 (s, 3H), 2.60-2.71 (m, 1H), 2.34-2.51 (m, 2H), 1.75-2.04
(m, 4H), 1.35 (s, 3H), 1.11 (d, J=12.4 Hz, 6H).
Preparation of Compound 115-I
[1900] To a solution of compound 115-H (210 mg, 0.94 mmol, 1 eq.)
in 5 mL of ethyl formate was added NaOMe (0.60 mL, 3.2 mmol, 3.4
eq. 5.4 M in methanol). The mixture was stirred at 22-27.degree. C.
under N.sub.2 for 3 h. LCMS indicated completion. The mixture was
diluted with ice-water (20 mL), adjusted pH to .about.5 by adding
1M HCl aq., extracted with EtOAc (20 mL.times.3). The combined
organic layers were washed with brine (20 mL), dried over anhydrous
Na.sub.2SO.sub.4, filtered and concentrated to give crude compound
115-I (230 mg) as pale-yellow oil.
Preparation of Compound 115-J
[1901] To the mixture of compound 115-I (230 mg, 0.92 mmol, 1.0
eq.) in EtOH (5 mL) and H.sub.2O (1 mL) was added hydrochloride
hydroxylamine (96 mg, 1.37 mmol, 1.5 eq.). After addition the
mixture was stirred at 70.degree. C. for 18 h. LCMS indicated
completion. The mixture was concentrated, the residue was diluted
with water (25 mL), extracted with EtOAc (15 mL.times.3). The
combined organic layers were washed with brine (20 mL), dried over
anhydrous Na.sub.2SO.sub.4, filtered, concentrated and purified by
prep-TLC (PE:EtOAc=1:2) to supply compound 115-J (120 mg, 52.6%
yield) as a white solid.
[1902] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.09 (s, 1H),
3.30-3.44 (m, 2H), 2.95 (s, 3H), 2.91 (d, J=16 Hz, 1H), 2.48 (d,
J=15.6 Hz, 1H), 1.87-1.99 (m, 3H), 1.36 (s, 3H), 1.27 (s, 3H) 1.18
(s, 3H).
Preparation of Compound 115-K
[1903] To a solution of compound 115-J (120 mg, 0.48 mmol, 1 eq.)
in 2 mL of methanol was added NaOMe (1.2 mL, 2.42 mmol, 5.0 eq. 2 M
in methanol). After addition the mixture was stirred at
22.about.26.degree. C. for 18 h. TLC (PE:EA=1:2) showed compound
115-J was consumed completely. The mixture was concentrated. The
residue was diluted with water (20 mL), adjusted pH to .about.5 by
adding 1M HCl aq., extracted with EtOAc (15 mL.times.4). The
combined organic layers were washed with brine (20 mL), dried over
anhydrous Na.sub.2SO.sub.4, filtered and concentrated to supply
crude compound 115-K (120 mg) as white solid.
Preparation of 115-Ent1 and 115-Ent2
[1904] To a solution of compound 115-K (110 mg, 0.44 mmol, 1.0 eq.)
in DMF (5 mL) was added DBDMH (76 mg, 0.27 mmol, 0.6 eq.). The
mixture was stirred at 24.degree. C. for 1 h. Pyridine (348 mg, 4.4
mmol, 10 eq.) was added and the mixture was stirred at 60.degree.
C. for 4 h. LCMS indicated completion. The mixture was diluted with
water (20 mL), adjusted pH to .about.5 by adding 1N HCl, extracted
with EtOAc (15 mL.times.3). The combined organic layers were washed
with brine (20 mL), dried over anhydrous Na.sub.2SO.sub.4,
filtered, concentrated and purified by prep-TLC (PE:EtOAc=1:3) to
supply racemate (.about.50 mg) which was separated by SFC
(condition: Neu-IPA, column: IC 250 mm*30 mm; 10 um) to supply the
first eluting compound (115-Ent1, 9 mg, 8.3% yield, Rt=4.478 min)
as a white solid, and the second eluting compound (.about.20 mg)
which was further purified by prep-HPLC (condition: water (0.05%
HCl)-ACN), column: Phenomenex Synergi C18 150*30 mm*4 um) to supply
isomer 115-Ent2 (9 mg, 8.3% yield, Rt=6.135 min) as a white
solid.
Spectra of 115-Ent1
[1905] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.46 (s, 1H),
3.43-3.51 (m, 1H), 3.33-3.42 (m, 1H), 2.94 (s, 3H), 2.25 (m, 1H),
2.02-2.16 (m, 1H), 1.94 (m, 1H), 1.48 (s, 3H), 1.26 (s, 3H), 1.18
(s, 3H).
[1906] HPLC: (purity: 99.72%)
[1907] SFC: (purity: 100%)
[1908] LCMS: (M+H: 247.0)
Spectra of Compound 115-Ent2:
[1909] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.46 (s, 1H),
3.43-3.51 (m, 1H), 3.33-3.42 (m, 1H), 2.94 (s, 3H), 2.25 (m, 1H),
2.02-2.15 (m, 1H), 1.94 (m, 1H), 1.48 (s, 3H), 1.26 (s, 3H), 1.18
(s, 3H).
[1910] HPLC: (Purity: 98.42%)
[1911] SFC: (purity: 100%)
[1912] LCMS: (M+H: 247.1)
Example 99: Synthesis of Compounds 116-Ent1 and 116-Ent2
##STR00143##
[1914] Compounds 116-Ent1 and 116-Ent2 can be made in a manner
analogous to that described for 115-Ent1 and 115-Ent2.
Procedure for the Synthesis of Compound 116-A:
[1915] To a solution of compound 115-F (500 mg, 1.98 mmol, 1.0 eq.)
in 20 mL of DMF was added NaH (395 mg, 9.88 mmol, 5.0 eq), then the
mixture was stirred at 30.degree. C. for 1 h. Subsequently,
2-iodopropane (1.679 g, 9.88 mmol, 5.0 eq) was added and the
resulting mixture was stirred at 50.degree. C. for 40 h. TLC
(PE:EA=1:4, 1:1) showed one new spot. The mixture was poured into
100 mL of ice-water slowly and 50 mL of brine, extracted with EtOAc
(100 mL.times.3). The combined organic layers were washed with
brine (100 mL), dried over anhydrous Na.sub.2SO.sub.4, filtered,
concentrated and purified by flash column
(PE:EtOAc=70:30-50:50-30:70) to supply compound 116-A (150 mg,
25.6% yield) as pale-yellow gum.
[1916] LCMS: (M+H: 296.2)
Procedure for the Purification and Chiral Separation of Compounds
116-Ent1 and 116-Ent2:
[1917] The final DBDMH oxidation mixture was diluted with EtOAc (30
mL), washed with aq. HCl (0.5 M) (15 mL), brine (15 mL.times.2),
dried over anhydrous Na.sub.2SO.sub.4, filtered, concentrated and
purified by prep-TLC (PE:EtOAc=1:1) to supply racemate (.about.26
mg) which was separated by SFC (condition: Neu-EtOH, column: OD 250
mm*30 mm; 5 um) to supply 116-Ent1 (9 mg, 13.6% yield, Rt=2.678
min) as grey solid and 116-Ent2 (9 mg, 13.6% yield, Rt=3.094 min)
as grey solid.
Spectra of Compound 116-Ent1:
[1918] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.47 (s, 1H),
4.70-4.84 (m, 1H), 3.36-3.45 (m, 1H), 3.18-3.29 (m, 1H), 2.13-2.22
(m, 1H), 1.93-2.07 (m, 2H), 1.46 (s, 3H), 1.26 (s, 3H), 1.17 (s,
3H), 1.14 (d, J=6.8 Hz, 6H).
[1919] HPLC: (purity: 96.49%)
[1920] SFC: (purity: 99.53%)
[1921] LCMS: (M+H: 275.0)
Spectra of Compound 116-Ent2:
[1922] .sup.1HNMR: (400 MHz, CDCl.sub.3) .delta.: 8.47 (s, 1H),
4.78 (m, 1H), 3.36-3.46 (m, 1H), 3.18-3.30 (m, 1H), 2.13-2.22 (m,
1H), 1.94-2.03 (m, 2H), 1.46 (s, 3H), 1.26 (s, 4H), 1.18 (s, 3H),
1.14 (d, J=6.8 Hz, 6H).
[1923] HPLC: (Purity: 97.89%)
[1924] SFC: (purity: 100%)
[1925] LCMS: (M+H: 275.1)
Example 100: Synthesis of Compounds 117-Ent1 and 117-Ent2
##STR00144##
[1926] Preparation of 117-A
[1927] To a mixture of compound 104-C (500 mg, 2.1 mmol, 1.0 eq)
and NaH (936 mg, 21 mmol, 10.0 eq) in DMF (10 mL) was added
compound CH.sub.3I (2.97 g, 21 mmol, 10.0 eq) in one portion at
10-25.degree. C. The reaction mixture was stirred at 10-25.degree.
C. for 18 hs. TLC (PE/EA=1:2) showed the compound 1 was consumed
completely. The reaction mixture was quenched with saturated
NH.sub.4Cl (50 mL) and extracted with EA (50 mL.times.2). The
combined organic layers were washed with brine (50 mL.times.1),
dried over Na.sub.2SO.sub.4, filtered and concentrated to give the
crude (800 mg) as red oil, which was used for the next step without
further purification.
[1928] LCMS: (M+H: 254.2)
Preparation of Compound 117-B
[1929] To a solution of compound 117-A (800 mg, crude) in THF (5
mL) was added HCl (1 mL, 1M) dropwise at 10-28.degree. C. The
reaction mixture was stirred at 10-28.degree. C. for 18 hours. LCMS
showed the compound 117-A was consumed completely. The mixture was
poured into water (30 mL) and adjust to PH=9 with solid
NaHCO.sub.3. The mixture was extracted with EA (30 mL.times.3),
dried over Na.sub.2SO.sub.4, filtered and concentrated to give the
crude, which was purified by column chromatography on silica gel
(PE/EA=10:1-1:2) to give compound 117-B (305 mg, yield of two
steps: 42%) as red oil.
[1930] LCMS: (M+H: 224.1)
Preparation of Compound 117-C
[1931] To a solution of compound 117-B (300 mg, 1.44 mmol, 1.0 eq)
in ethyl formate (10 mL) was added a solution of NaOMe/MeOH (1.59
mL, 5.4M) at 10-30.degree. C. dropwise under N.sub.2. The mixture
was stirred at 10-27.degree. C. for 18 hours. TLC (PE/EA=1:2)
showed the compound 3 was consumed completely. The mixture was
poured into water (30 mL) and acidified with HCl (1M) to make
PH=4-5. The mixture was extracted with EtOAc (30 mL.times.2). The
combined organic phase was washed with brine (50 mL), dried over
Na.sub.2SO.sub.4, and filtered. The filtrate was concentrated in
vacuo to give compound crude (330 mg), which was used directly in
the next step without purification.
[1932] LCMS: (M+H: 238.0)
Preparation of Compounds 117-D-Ent1 and 117-D-Ent2
[1933] A mixture of compound 117-C (300 mg, 1.19 mmol, 1.0 eq) and
hydrochloride hydroxylamine (107 mg, 1.55 mmol, 1.0 eq) in
EtOH/H.sub.2O (5 mL, V=5:1) were stirred at 55.degree. C. for 18
hours. LCMS showed desired product was detected. The mixture was
concentrated to remove EtOH and diluted with water (30 mL). The
mixture was extracted with EA (30 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give the crude,
which was purified by column chromatography on silica gel
(PE/EA=5:1-2:1-1:3) to give racemic product (240 mg, yield: 76%) as
yellow oil. The compound was further separated by SFC (column: AD
(250 mm*30 mm, 5 um)) condition: 0.1% NH.sub.3H.sub.2O ETOH) to
give enantiomer 117-D-Ent1 (40 mg, yield: 22.7%) and enantiomer
117-D-Ent2 (60 mg, yield: 22.7%), both as white solids.
[1934] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 8.10 (s, 1H),
3.35-3.41 (m, 2H), 2.94-2.98 (m, 3H), 2.59-2.72 (m, 1H), 2.51 (dd,
J=2.6, 16.22 Hz, 1H), 2.03-2.10 (m, 1H), 1.69-1.88 (m, 3H), 1.39
(d, J=6.6 Hz, 3H), 1.10 (s, 3H)
Preparation of Compound 117-E-Ent1
[1935] To a solution of compound 117-D-Ent1 (30 mg, 0.128 mmol, 1.0
eq) in MeOH (3 mL) was added a solution of NaOMe/MeOH (1 mL, 5.4M).
The mixture was stirred at 10-38.degree. C. for 18 hours. TLC
(PE:EA=1:3) showed most of the starting material was almost
consumed and a new spot was detected. The mixture was acidified
with HCl (1M) to make pH=4-5 and diluted with water (20 mL). The
mixture was extracted with EtOAc (30 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give compound
117-E-Ent1 (40 mg) as yellow oil, which was used for the next step
without further purification.
Preparation of Compound 117-E-Ent2
[1936] To a solution of compound 117-D-Ent2 (50 mg, 0.26 mmol, 1.0
eq) in MeOH (3 mL) was added a solution of NaOMe/MeOH (0.22 mL,
5.4M, 6.0). The mixture was stirred at 10-38.degree. C. for 18
hours. TLC (PE:EA=1:3) showed most of the starting material was
almost consumed and a new spot was detected. The mixture was
acidified with HCl (1M) to make PH=4-5 and diluted with water (20
mL). The mixture was extracted with EtOAc (30 mL.times.2), dried
over Na.sub.2SO.sub.4, filtered and concentrated to give compound
117-E-Ent2 (52 mg) as yellow oil, which was used for the next step
without further purification.
Preparation of Compound 117-Ent1
[1937] A mixture of compound 117-E-Ent1 (40 mg, 0.128 mmol, 1.0 eq)
and DBDMH (22 mg, 0.07 mmol, 0.6 eq) in DMF (6 mL) was stirred at
0.degree. C. for 1 hour under N.sub.2. Pyridine (101 mg, 1.28 mmol,
10.0 eq) was added to the above mixture in one portion at 0.degree.
C. The mixture was stirred at 60.degree. C. for 18 hours under
N.sub.2. LCMS showed most of the starting material was consumed.
The mixture was concentrated to give the crude, which was purified
by pre-HPLC (Condition: water (0.05% HCl)-CAN, Column: Phenomenex
Synergi C18 150*30 mm*4 um) to give 117-F-Ent1 (10 mg, purity: 80%)
as a white solid. Further purification was separated by prep-TLC
(PE/EA=1:3) to give the desired product (5 mg, yield: 12.5%,
Rt=5.526 min) as a white solid.
[1938] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.46 (s, 1H),
3.32-3.50 (m, 2H), 2.95 (s, 3H), 2.46 (qd, J=6.6, 13.05 Hz, 1H),
2.14-2.22 (m, 1H), 2.00-2.13 (m, 1H), 1.87-2.00 (m, 1H), 1.39-1.47
(m, 3H), 1.25 (d, J=6.6 Hz, 3H).
[1939] SFC: (ee: 98.1%)
[1940] HPLC: (Purity: 98.01%)
[1941] LCMS: (M+H: 233.0)
Preparation of Compound 117-Ent2
[1942] A mixture of compound 117-E-Ent2 (52 mg, 0.2 mmol, 1.0 eq)
and DBDMH (35 mg, 0.12 mmol, 0.6 eq) in DMF (5 mL) was stirred at
0.degree. C. for 1 hour under N.sub.2. Pyridine (158 mg, 2 mmol,
10.0 eq) was added to the above mixture in one portion at 0.degree.
C. The mixture was stirred at 55.degree. C. for 18 hours under
N.sub.2. TLC (PE/EtOAc=1:3) showed most of the starting material
was consumed. The mixture was diluted with EtOAc (50 mL), washed
HCl (30 mL.times.2, 1M), brine (30 mL.times.1) dried over
Na.sub.2SO.sub.4, filtered and concentrated to give the crude,
which was purified by prep-TLC (PE/EA=1:3) to give the desired
product (25 mg, not pure by .sup.1HNMR) as a white solid. Further
purification was separated by prep-HPLC (Condition: water (0.05%
HCl)-CAN, Column: Phenomenex Synergi C18 150*30 mm*4 um) to give
117-Ent2 (15 mg, yield: 38.6%, Rt=6.101 min) as a white solid.
[1943] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta.: 8.46 (s, 1H),
3.32-3.50 (m, 2H), 2.95 (s, 3H), 2.46 (qd, J=6.6, 13.05 Hz, 1H),
2.14-2.22 (m, 1H), 2.00-2.13 (m, 1H), 1.87-2.00 (m, 1H), 1.39-1.47
(m, 3H), 1.25 (d, J=6.6 Hz, 3H).
[1944] SFC: (ee: 98.0%)
[1945] HPLC: (Purity: 99.39%)
[1946] LCMS: (M+H: 247.0)
Example 101: Synthesis of Compound 118-Ent1 and 118-Ent2
##STR00145##
[1948] Compounds 118-Ent1 and 118-Ent2 can be made in a manner
analogous to that described for 117-Ent1 and 117-Ent2.
Procedure for the Synthesis of 118-A
[1949] To a mixture of compound 104-C (800 mg, 3.34 mmol, 1.0 eq)
and NaH (668 mg, 16.7 mmol, 5.0 eq) in DMF (10 mL) was added ethyl
iodide (2.61 g, 16.7 mmol, 5.0 eq) in one portion at 10-25.degree.
C. The reaction mixture was stirred at 10-25.degree. C. for 18 hs.
LCMS showed the compound 104-C was consumed completely. The
reaction mixture was quenched with saturated NH.sub.4Cl (30 mL) and
extracted with EA (30 mL.times.2). The combined organic layers were
washed with brine (30 mL.times.2), dried over Na.sub.2SO.sub.4,
filtered and concentrated to give compound 118-A (800 mg, yield:
85%) as red oil, which was used for the next step without further
purification.
[1950] LCMS: (M+H: 268.3)
Procedure for the Purification and Chiral Separation of Compounds
118-B Ent1 and 118-B-Ent2:
[1951] After the isoxazole-forming reaction was complete (as
described in the conversion of 117-C to 117-D-Ent1 and 117-D-Ent2),
the mixture was extracted with EA (30 mL.times.2), dried over
Na.sub.2SO.sub.4, filtered and concentrated to give the crude,
which was purified by column chromatography on silica gel
(PE/EA=1:3) to give racemic product (220 mg, yield: 75%) as a
yellow oil. The product was was further purified by SFC (column: OJ
(250 mm*30 mm, 5 um) condition: 0.1% NH.sub.3H.sub.2O IPA) to give
enantiomer 118-B-Ent1 (50 mg, yield: 22.7%) enantiomer and
118-B-Ent2 (50 mg, yield: 22.7%) both as white solid.
[1952] .sup.1HNMR (400 MHz, CHLOROFORM-d) .delta. 8.10 (s, 1H),
3.34-3.43 (m, 4H), 2.88 (d, J=15.35 Hz, 1H), 2.56-2.65 (m, 1H),
2.42-2.55 (m, 1H), 2.07 (br d, J=4.39 Hz, 1H), 1.69-1.85 (m, 2H),
1.39 (d, J=7.02 Hz, 3H), 1.13 (t, J=7.24 Hz, 3H), 1.08 (s, 3H).
Purification and Spectral Data for 118-Ent1
[1953] After reaction completion, the crude DBDMH oxidation mixture
was diluted with EtOAc (50 mL), washed HCl (30 mL.times.2, 1M),
brine (30 mL.times.1) dried over Na.sub.2SO.sub.4, filtered and
concentrated to give the crude, which was purified by prep-HPLC
(Condition: water (0.05% HCl)-CAN, Column: Phenomenex Synergi C18
150*30 mm*4 um) to give 118-Ent1 (10 mg, yield: 20.4%, Rt=3.863
min) as a white solid.
Spectra of 118-Ent1
[1954] .sup.1H NMR (400 MHz, METHANOL-d4) .delta. 8.33 (s, 1H),
3.33-3.53 (m, 4H), 2.61 (qd, J=6.6, 12.8 Hz, 1H), 2.27 (dt, J=3.2,
12.8 Hz, 1H), 2.02-2.11 (m, 1H), 1.90-2.00 (m, 1H), 1.41 (s, 3H),
1.20 (d, J=6.6 Hz, 3H), 1.12 (t, J=7.2 Hz, 3H).
[1955] SFC: (ee: 98.1%)
[1956] HPLC: (Purity: 94.87%)
[1957] LCMS: (M+H: 247.0)
Purification and Spectral Data for 118-Ent2
[1958] After reaction completion, the crude DBDMH oxidation mixture
was diluted with EtOAc (50 mL), washed with HCl (30 mL.times.2,
1M), brine (30 mL.times.1) dried over Na.sub.2SO.sub.4, filtered
and concentrated to give the crude, which was purified by pre-HPLC
(Condition: water (0.05% HCl)-CAN, Column: Phenomenex Synergi C18
150*30 mm*4 um) to give 118-Ent2 (9 mg, yield: 20.1%, Rt=4.074 min)
as a white solid.
[1959] .sup.1H NMR (400 MHz, METHANOL-d4) .delta.: 8.33 (s, 1H),
3.33-3.53 (m, 4H), 2.54-2.68 (m, 1H), 2.27 (dt, J=3.2, 12.8 Hz,
1H), 2.03-2.13 (m, 1H), 1.89-2.00 (m, 1H), 1.41 (s, 3H), 1.20 (d,
J=6.6 Hz, 3H), 1.12 (t, J=7.2 Hz, 3H).
[1960] SFC: (ee: 98.0%)
[1961] HPLC: (Purity: 97.27%)
[1962] LCMS: (M+H: 247.0)
Example 102: General Method for the Synthesis of Compounds Via
Cross-Coupling
##STR00146##
[1963] General Procedure for the Preparation of Compounds of Type
RC-1
[1964] An oven-dried flask, which was equipped with a magnetic stir
bar and fitted with a septum, was charged with 60-H (1.0 eq.), Aryl
iodide (1.5 eq.), copper(I) iodide (0.3 eq.), 1,10-phenanthroline
(0.3 eq.), K.sub.3PO.sub.4 (3.0 eq.) and DMSO (0.2 M). The reaction
mixture solution was degassed with nitrogen for 5 min. The vessel
was evacuated and backfilled with nitrogen (this process was
repeated a total of 5 times) and was stirred at 100.degree. C. for
24 hours. Analysis by LCMS revealed 60-H was consumed completely
and new peak with a mass consistent with desired product RC-1. The
reaction mixture was filtered through a short pad of Celite.RTM. to
remove the catalyst, and DMSO was removed under high vacuum to
provide the crude mixture of compound RC-1 which was used for next
step without further purification.
General Procedure for the Preparation of Compounds of type
RC-2-Ent1 and RC2-Ent2
[1965] To a glass vial, which was charged crude Compound RC-1 (1.0
eq.) in Toluene (0.1 M), was added DDQ (1.3 eq.). The reaction
mixture was heated at 120.degree. C. for 2 hours. After cooling to
room temperature, the reaction mixture was diluted with EtOAc and
washed with saturated NaHCO.sub.3 solution. The aqueous phase was
extracted with EtOAc (3 times) and the combined organic layers were
dried over MgSO.sub.4. The solvent was removed in vacuo and the
residue was purified by HPLC and separated by chiral SFC.
Example 103: Specific Example of Example 102, Synthesis of
Compounds 120-Ent1 and 120-Ent2
##STR00147##
[1966] Preparation of Compound 120-A
[1967] An oven-dried flask, which was equipped with a magnetic stir
bar and fitted with a septum, was charged with 60-H (96.0 mg, 338
.mu.mol, 1.0 eq.), iodobenzene (103.2 mg, 506 .mu.mol, 1.5 eq.),
copper(I) iodide (19.2 mg, 102 .mu.mol, 0.3 eq.),
1,10-phenanthroline (18.2 mg, 102 .mu.mol, 0.3 eq.),
K.sub.3PO.sub.4 (214.8 mg, 1012 .mu.mol, 3.0 eq.) and DMSO (1.6 mL,
0.2 M). The reaction mixture solution was degassed with nitrogen
for 5 min. The vessel was evacuated and backfilled with nitrogen
(this process was repeated a total of 5 times) and was stirred at
100.degree. C. for 24 hours. Analysis by LCMS revealed 60-H
consumed completely and new peak with a mass consistent with
desired product 120-A. The reaction mixture was filtered through a
short pad of Celite.RTM. to remove the catalyst, and DMSO was
removed under high vacuum to provide the crude mixture of compound
120-A which was used for next step without further
purification.
Preparation of Compounds 120-Ent1 and 120-Ent2
[1968] To a glass vial, which was charged crude 120-A (100 mg, 212
.mu.mol, 1.0 eq.) in Toluene (2.2 mL, 0.1 M), was added DDQ (62.6
mg, 276 .mu.mol, 1.3 eq.). The reaction mixture was heated at
125.degree. C. for 2 hours. After cooling to room temperature, the
reaction mixture was diluted with EtOAc and washed with saturated
NaHCO.sub.3 solution. The aqueous phase was extracted with EtOAc (3
times) and the combined organic layers were dried over MgSO.sub.4.
The solvent was removed in vacuo and the residue was purified by
HPLC and separated by SFC (Column: CHIRALPAK IA 30.times.250 mm, 5
um; Condition: 40% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR 120 bar; MBPR 40 psi) to give 120-Ent1 (15.3 mg,
Rt=2.070 min) and 120-Ent2 (13.7 mg, Rt=3.250 min). The absolute
stereochemistry was not determined.
Data for 120-Ent1
[1969] HPLC: (Purity: 98.7%)
[1970] LCMS: (M+H: 357.1)
[1971] SFC: (ee: 100%)
[1972] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.22 (d,
J=6.1 Hz, 3H), 1.85-1.90 (m, 1H), 2.0-2.04 (m, 1H), 2.50-2.57 (m,
1H), 2.61-2.67 (m, 1H), 3.88-3.91 (m, 2H), 7.33-7.51 (m, 10H), 8.44
(s, 1H)
Data for 120-Ent2
[1973] HPLC: (Purity: 99.1%)
[1974] LCMS: (M+H: 357.1)
[1975] SFC: (ee: 100%)
[1976] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.22 (d,
J=6.1 Hz, 3H), 1.86-1.89 (m, 1H), 2.0-2.03 (m, 1H), 2.50-2.57 (m,
1H), 2.61-2.67 (m, 1H), 3.88-3.91 (m, 2H), 7.33-7.51 (m, 10H), 8.44
(s, 1H)
Example 104: Synthesis of Compounds 121-Ent1 and 121-Ent2
##STR00148##
[1978] Compounds 121-Ent1 and 121-Ent2 can be made according to
Example 102.
SFC Purification: (Column: CHIRALPAK IA 30.times.250 mm, 5 um;
Condition: 45% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR 120 bar, MBPR 40 psi) to give 121-Ent1 (9.7 mg,
Rt=2.926 min) and 121-Ent2 (9.9 mg, Rt=4.069). The absolute
stereochemistry was not determined.
Data for 121-Ent1
[1979] HPLC: (Purity: 98.8%)
[1980] LCMS: (M: 358.1)
[1981] SFC: (ee: 100%)
[1982] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.26 (d,
J=6.7 Hz, 3H), 1.87-1.94 (m, 1H), 2.20-2.23 (m, 1H), 2.54-2.60 (m,
1H), 2.63-2.69 (m, 1H), 4.16-4.20 (m, 1H), 4.35-4.38 (m, 1H), 7.23
(d, J=10.0, 2H), 7.43-7.47 (m, 3H), 8.37 (s, 1H), 8.40 (d, J=6.3
Hz, 1H), 8.75 (d, J=6.1 Hz, 1H), 9.17 (s, 1H)
Data for 121-Ent2
[1983] HPLC: (Purity: 99.7%)
[1984] LCMS: (M: 358.1)
[1985] SFC: (ee: 100%)
[1986] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.26 (d,
J=6.7 Hz, 3H), 1.87-1.94 (m, 1H), 2.19-2.22 (m, 1H), 2.54-2.60 (m,
1H), 2.59-2.69 (m, 1H), 4.15-4.20 (m, 1H), 4.34-4.37 (m, 1H), 7.23
(d, J=10.0, 2H), 7.43-7.47 (m, 3H), 8.37 (s, 1H), 8.39 (d, J=6.3
Hz, 1H), 8.75 (d, J=6.1 Hz, 1H), 9.17 (s, 1H)
Example 105: Synthesis of Compounds 122-Ent1 and 122-Ent2
##STR00149##
[1988] Compounds 122-Ent1 and 122-Ent2 can be made according to
Example 102.
[1989] SFC (Column: CHIRALPAK OX-H 30.times.250 mm, 5 um;
Condition: 35% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR 120 bar, MBPR 40 psi) to give 122-Ent1 (14.1 mg,
Rt=2.324 min) and 122-Ent2 (14.8 mg, Rt=2.830). The absolute
stereochemistry was not determined.
Data for 122-Ent1
[1990] HPLC: (Purity: 100%)
[1991] LCMS: (M: 374.1)
[1992] SFC: (ee: 98.02%)
[1993] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.21 (d,
J=6.7 Hz, 3H), 1.83-1.90 (m, 1H), 2.0-2.04 (m, 1H), 2.49-2.56 (m,
1H), 2.60-2.65 (m, 1H) 3.85-3.88 (m, 2H) 7.15-7.19 (m, 2H)
7.30-7.34 (m, 4H), 7.41-7.49 (m, 3H), 8.42 (s, 1H)
Data for 122-Ent2
[1994] HPLC: (Purity: 99.3%)
[1995] LCMS: (M+H: 374.1)
[1996] SFC: (ee: 99.6%)
[1997] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.21 (d,
J=6.7 Hz, 3H), 1.85-1.90 (m, 1H), 2.0-2.04 (m, 1H), 2.51-2.56 (m,
1H), 2.60-2.65 (m, 1H) 3.85-3.88 (m, 2H) 7.15-7.19 (m, 2H)
7.30-7.34 (m, 4H), 7.41-7.49 (m, 3H), 8.42 (s, 1H)
Example 106: Synthesis of Compounds 123-Ent1 and 123-Ent2
##STR00150##
[1999] Compounds 123-Ent1 and 123-Ent2 can be made according to
Example 102.
[2000] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
25% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR
120 bar; MBPR 40 psi) to give 123-Ent1 (26.1 mg, Rt=2.354 min) and
123-Ent2 (25.4 mg, Rt=2.941 min). The absolute stereochemistry was
not determined.
Data for 123-Ent1
[2001] HPLC: (Purity: 98.5%)
[2002] LCMS: (M+H: 387.2)
[2003] SFC: (ee: 100%)
[2004] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.21 (d,
J=6.71 Hz, 3H), 1.85-1.88 (m, 1H), 1.98-2.02 (m, 1H), 2.50-2.55 (m,
1H), 2.59-2.65 (m, 1H), 3.84-3.87 (m, 2H), 3.84 (s, 3H), 6.97-7.0
(m, 2H), 7.25-7.26 (m, 1H), 7.31 (d, J=7.32 Hz, 2H), 7.40-7.48 (m,
3H) 8.44 (s, 1H)
Data for 123-Ent2
[2005] HPLC: (Purity: 100%)
[2006] LCMS: (M+H: 387.2)
[2007] SFC: (ee: 100%)
[2008] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.21 (d,
J=6.71 Hz, 3H), 1.83-1.88 (m, 1H), 1.98-2.02 (m, 1H), 2.50-2.55 (m,
1H), 2.59-2.65 (m, 1H), 3.84-3.87 (m, 2H), 3.84 (s, 3H), 6.97-7.0
(m, 2H), 7.24-7.26 (m, 1H), 7.31 (d, J=7.32 Hz, 2H), 7.40-7.48 (m,
3H) 8.44 (s, 1H)
Example 107: Procedure for the Synthesis of 124-C
##STR00151##
[2009] Procedure for the Synthesis of 124-A
[2010] An oven-dried flask, which was equipped with a magnetic stir
bar and fitted with a septum, was charged with 105-A (2.6 g, 6.3
mmol, 1.0 eq.), ethyl formate (10.1 mL, 125.8 mmol, 20.0 eq.),
sodium methoxide (4.4 M stock solution in MeOH, 5.7 mL, 25.2 mmol,
4.0 eq.) and toluene (50.0 mL, 0.12 M). The reaction mixture
solution was stirred at room temperature for 16 hours. Analysis by
LCMS revealed 105-A was consumed completely and new peak with a
mass consistent with desired product 124-A The reaction mixture was
quenched by water and acidified to pH .about.5 by HCl solution
(1N). EtOAc was added into the aqueous solution and the layers were
separated. The organic phase was washed with brine and was dried
over MgSO.sub.4. The solvent was removed in vacuo to provide the
crude compound 124-B (2.5 g, 88.4% yield) which was used for next
step without further purification.
[2011] LCMS: (M+1: 448.2)
Procedure for the Synthesis of 124-B
[2012] To a solution of crude 124-A (2.55 g, 5.7 mmol, 1.0 eq.) in
ethanol/water (27 mL/1.4 mL, 95:5, 0.2 M) was added hydroxylamine
hydrochloride (7.9 g, 113.4 mmol, 20.0 eq.). The solution was
heated to reflux for 2 hours. Analysis by LCMS revealed 124-A
consumed completely and new peak with a mass consistent with
desired product 124-B. The solvent was removed, and the residue was
then dissolved in NAHCO.sub.3 solution (sat.). The aqueous solution
was then extracted with EtOAc (30 mL, 3 times), and the combined
organic layers were washed with water then dried over MgSO.sub.4.
The solvent was removed in vacuo to provide the crude compound
124-B (2.2 g, 87.3% yield) which was used for next step without
further purification.
[2013] LCMS: (M+1: 445.2)
Procedure for the Synthesis of 124-C
[2014] Compound 124-B (2.5 g, 5.6 mmol, 1.0 eq.) was dissolved in
TFA (21.3 mL, 277.7 mmol, 50.0 eq.), and the reaction mixture was
heated to 85.degree. C. for 16 hours. Analysis by LCMS revealed
124-B consumed completely and new peak with a mass consistent with
desired product 124-C. The solvent was removed in vacuo, and the
purple residue was taken up in minimum amount of chloroform and
then subjected to column chromatography (35% to 55% to 90% EtOAc in
Heptane) to provide 124-C (1.2 g, 75.4% yield) as a brown
solid.
[2015] LCMS: (M: 294.1)
[2016] .sup.1H NMR (500 MHz, METHANOL-d.sub.4) .delta. ppm 0.86 (s,
3H), 1.54 (s, 3H), 2.80 (d, J=16.48 Hz, 1H), 3.88 (d, J=16.48, 2H),
4.16 (dd, J=18.62, 3.97 Hz, 1H), 4.32 (dd, J=18.92, 2.44 Hz, 1H),
6.29-6.31 (m, 1H), 7.19-7.22 (m, 1H), 7.23-7.30 (m, 4H), 8.40 (s,
1H)
Example 108: General Procedure for the Synthesis of Compounds Via
Cross-Coupling
##STR00152##
[2018] An oven-dried flask, which was equipped with a magnetic stir
bar and fitted with a septum, was charged with 124-C (1.0 eq.),
Aryl iodide (1.5 eq.), copper(I) iodide (0.3 eq.),
1,10-phenanthroline (0.3 eq.), K.sub.3PO.sub.4 (3.0 eq.) and DMSO
(0.2 M). The reaction mixture solution was degassed with nitrogen
for 5 min. The vessel was evacuated and backfilled with nitrogen
(this process was repeated a total of 5 times) and was stirred at
100.degree. C. for 24 hours. Analysis by LCMS revealed 124-C was
consumed completely and new peak with a mass consistent with
desired product RC-3. The reaction mixture was filtered through a
short pad of Celite.RTM. to remove the catalyst, and DMSO was
removed under high vacuum to provide the crude mixture of compound
RC-3 which was used for next step without further purification.
[2019] To a glass vial, which was charged crude RC-3 (1.0 eq.) in
Toluene (0.1 M), was added DDQ (1.3 eq.). The reaction mixture was
heated at 125.degree. C. for 2 hours. After cooling to room
temperature, the reaction mixture was diluted with EtOAc and washed
with saturated NaHCO.sub.3 solution. The aqueous phase was
extracted with EtOAc (3 times) and the combined organic layers were
dried over MgSO.sub.4. The solvent was removed in vacuo and the
residue was purified by HPLC and separated by chiral SFC.
Example 109: Specific Example of Example 108; Synthesis of
Compounds 124-Ent1 and 124-Ent2
##STR00153##
[2020] Procedure for the Synthesis of 124-D
[2021] An oven-dried flask, which was equipped with a magnetic stir
bar and fitted with a septum, was charged with 124-C (100.0 mg, 340
.mu.mol, 1.0 eq.), 2-iodopyrimidine (105.0 mg, 510 .mu.mol, 1.5
eq.), copper(I) iodide (19.4 mg, 102 .mu.mol, 0.3 eq.),
1,10-phenanthroline (18.4 mg, 102 .mu.mol, 0.3 eq.),
K.sub.3PO.sub.4 (216.4 mg, 1020 .mu.mol, 3.0 eq.) and DMSO (1.7 mL,
0.2 M). The reaction mixture solution was degassed with nitrogen
for 5 min. The vessel was evacuated and backfilled with nitrogen
(this process was repeated a total of 5 times) and was stirred at
100.degree. C. for 24 hours. Analysis by LCMS revealed 124-C
consumed completely and new peak with a mass consistent with
desired product 124-D. The reaction mixture was filtered through a
short pad of Celite.RTM. to remove the catalyst, and DMSO was
removed under high vacuum to provide the crude mixture of compound
124-D which was used for next step without further
purification.
Preparation of Compound 124-Ent1 & 124-Ent2
[2022] To a glass vial, which was charged crude RC-1 (100 mg, 279
.mu.mol, 1.0 eq.) in Toluene (2.8 mL, 0.1 M), was added DDQ (82.2
mg, 362 .mu.mol, 1.3 eq.). The reaction mixture was heated at
125.degree. C. for 2 hours. After cooling to room temperature, the
reaction mixture was diluted with EtOAc and washed with saturated
NaHCO.sub.3 solution. The aqueous phase was extracted with EtOAc (3
times) and the combined organic layers were dried over MgSO.sub.4.
The solvent was removed in vacuo and the residue was purified by
HPLC and separated by SFC (Column: CHIRALPAK IA 30.times.250 mm, 5
um; Condition: 40% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR 120 bar; MBPR 40 psi) to give 124-Ent1 (15.3 mg,
Rt=2.070 min) and 124-Ent2 (13.7 mg, Rt=3.250 min). The absolute
stereochemistry was not determined.
Data for 124-Ent1
[2023] HPLC: (Purity: 97.3%)
[2024] LCMS: (M+H: 371.1)
[2025] SFC: (ee: 100%)
[2026] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.06 (s,
3H), 1.51 (s, 3H), 4.44 (dd, J=18.01, 2.14 Hz, 1H), 4.79-4.84 (m,
1H), 6.40 (dd, J=6.10, 1.83 Hz, 1H), 7.17 (t, J=4.88 Hz, 1H),
7.33-7.37 (m, 1H), 7.38-7.42 (m, 2H), 7.45-7.47 (m, 2H), 8.71 (d,
J=4.88 Hz, 2H), 8.74 (s, 1H)
Data for 124-Ent2
[2027] HPLC: (Purity: 98.4%)
[2028] LCMS: (M+H: 371.1)
[2029] SFC: (ee: 100%)
[2030] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.05 (s,
3H), 1.51 (s, 3H), 4.44 (dd, J=18.01, 2.14 Hz, 1H), 4.79-4.84 (m,
1H), 6.41 (dd, J=6.10, 1.83 Hz, 1H), 7.17 (t, J=4.88 Hz, 1H),
7.32-7.37 (m, 2H), 7.38-7.42 (m, 2H), 7.45-7.47 (m, 2H), 8.71 (d,
J=4.88 Hz, 2H), 8.74 (s, 1H)
Example 110: Synthesis of Compounds 125-Ent1 and 125-Ent2
##STR00154##
[2032] Compounds 125-Ent1 and 125-Ent2 can be made according to
Example 108 SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um;
Condition: 40% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR 120 bar; MBPR 40 psi) to give 125-Ent1 (5.3 mg,
Rt=2.109 min) and 125-Ent2 (5.0 mg, Rt=2.583 min). The absolute
stereochemistry was not determined.
Data for 125-Ent1
[2033] HPLC: (Purity: 96.4%)
[2034] LCMS: (M+H: 370.1)
[2035] SFC: (ee: 100%)
[2036] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.13 (s,
3H), 1.54 (s, 3H), 4.42-4.46 (m, 2H), 6.43-6.48 (m, 1H), 7.41-7.47
(m, 5H), 7.87 (d, J=6.1 Hz, 2H), 8.58 (s, 1H), 8.76 (d, J=6.71 Hz,
2H)
Data for 125-Ent2
[2037] HPLC: (Purity: 98.1%)
[2038] LCMS: (M+H: 370.1)
[2039] SFC: (ee: 100%)
[2040] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.13 (s,
3H), 1.54 (s, 3H), 4.44-4.46 (m, 2H), 6.43-6.48 (m, 1H), 7.39-7.47
(m, 5H), 7.87 (d, J=6.1 Hz, 2H), 8.58 (s, 1H), 8.76 (d, J=6.71 Hz,
2H)
Example 111: Synthesis of Compounds 126-Ent1 and 126-Ent2
##STR00155##
[2042] Compounds 126-Ent1 and 126-Ent2 can be made according to
Example 108.
[2043] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
30% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR
120 bar; MBPR 40 psi) to give 126-Ent1 (1.6 mg, Rt=2.617 min) and
126-Ent2 (1.3 mg, Rt=3.105 min). The absolute stereochemistry was
not determined.
Data for 126-Ent1
[2044] HPLC: (Purity: 96.4%)
[2045] LCMS: (M+H: 370.1)
[2046] SFC: (ee: 100%)
[2047] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.04 (s,
3H), 1.53 (s, 3H), 4.33-4.37 (m, 1H), 4.58-4.62 (m, 1H), 6.40 (d,
J=4.88 Hz, 1H), 7.33-7.49 (m, 5H), 7.70-7.73 (m, 1H), 8.19 (d,
J=8.55 Hz, 1H), 8.6 (m, 1H), 8.67 (s, 1H), 8.79 (br s, 1H)
Data for 126-Ent2
[2048] HPLC: (Purity: 98.1%)
[2049] LCMS: (M+H: 370.1)
[2050] SFC: (ee: 100%)
[2051] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.04 (s,
3H), 1.53 (s, 3H), 4.32-4.36 (m, 1H), 4.57-4.61 (m, 1H), 6.41 (d,
J=4.88 Hz, 1H), 7.33-7.49 (m, 5H), 7.70-7.73 (m, 1H), 8.19 (d,
J=8.55 Hz, 1H), 8.6 (m, 1H), 8.67 (s, 1H), 8.79 (br s, 1H)
Example 112: Synthesis of Compounds 126-Ent1 and 126-Ent2
##STR00156##
[2053] Compounds 127-Ent1 and 127-Ent2 can be made according to
Example 108.
[2054] SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um; Condition:
40% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR
120 bar; MBPR 40 psi) to give 127-Ent1 (11.5 mg, Rt=2.164 min) and
127-Ent2 (10.7 mg, Rt=3.485 min). The absolute stereochemistry was
not determined.
Data for 127-Ent1
[2055] HPLC: (Purity: 97.1%)
[2056] LCMS: (M+H: 370.1)
[2057] SFC: (ee: 100%)
[2058] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.04 (s,
3H), 1.51 (s, 3H), 4.60 (d, J=3.66 Hz, 2H), 6.40 (t, J=3.97 Hz, 1H)
7.31-7.37 (m, 2H) 7.39-7.45 (m, 4H), 7.66 (d, J=7.94 Hz, 1H),
7.87-7.90 (m, 1H), 8.53 (dd, J=5.49, 1.22 Hz, 1H), 8.71 (s, 1H)
Data for 127-Ent2
[2059] HPLC: (Purity: 100%)
[2060] LCMS: (M+H: 370.1)
[2061] SFC: (ee: 100%)
[2062] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.04 (s,
3H), 1.51 (s, 3H), 4.60 (d, J=3.66 Hz, 2H), 6.40 (t, J=3.97 Hz, 1H)
7.31-7.37 (m, 2H) 7.39-7.46 (m, 4H), 7.66 (d, J=7.94 Hz, 1H),
7.87-7.90 (m, 1H), 8.53 (dd, J=5.49, 1.22 Hz, 1H), 8.71 (s, 1H)
Example 113: Synthesis of Compounds 128-Ent1 and 128-Ent2
##STR00157##
[2064] Compounds 128-Ent1 and 128-Ent2 can be made according to
Example 108.
[2065] SFC (Column: CHIRALPAK IG 30.times.250 mm, 5 um; Condition:
35% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR
120 bar; MBPR 60 psi) to give 128-Ent1 (15.1 mg, Rt=3.152 min) and
128-Ent2 (5.3 mg, Rt=3.495 min). The absolute stereochemistry was
not determined.
Data for 128-Ent1
[2066] HPLC: (Purity: 100%)
[2067] LCMS: (M+H: 370.1)
[2068] SFC: (ee: 98.3%)
[2069] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.10 (s,
3H), 1.53 (s, 3H), 4.29-4.33 (m, 1H), 5.01-5.06 (m, 1H), 6.45 (dd,
J=6.10, 1.83 Hz, 1H), 7.36-7.47 (m, 5H), 8.24 (dd, J=6.10, 1.22 Hz,
1H), 8.63 (d, J=6.10 Hz, 1H), 8.65 (s, 1H), 9.02 (s, 1H)
Data for 128-Ent2
[2070] HPLC: (Purity: 98.1%)
[2071] LCMS: (M+H: 370.1)
[2072] SFC: (ee: 100%)
[2073] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.10 (s,
3H), 1.53 (s, 3H), 4.29-4.33 (m, 1H), 5.01-5.06 (m, 1H), 6.45 (dd,
J=6.10, 1.83 Hz, 1H), 7.36-7.47 (m, 5H), 8.24 (dd, J=6.10, 1.22 Hz,
1H), 8.63 (d, J=6.10 Hz, 1H), 8.65 (s, 1H), 9.02 (s, 1H)
Example 114: Synthesis of Compounds 129-Ent1 and 129-Ent2
##STR00158##
[2075] Compounds 129-Ent1 and 129-Ent2 can be made according to
Example 108.
[2076] SFC (Column: CHIRALPAK IG 30.times.250 mm, 5 um; Condition:
40% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min;
ABPR: 120 bar; MBPR: 60 psi) to give 129-Ent1 (2.2 mg, Rt=3.724
min) and 129-Ent2 (2.4 mg, Rt=4.555 min). The absolute
stereochemistry was not determined.
Data for 129-Ent1
[2077] HPLC: (Purity: 99.6%)
[2078] LCMS: (M+H: 371.1)
[2079] SFC: (ee: 100%)
[2080] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.05 (s,
3H), 1.53 (s, 3H), 4.40-4.44 (m, 1H), 4.81-4.86 (m, 1H), 6.43 (dd,
J=5.49, 1.83 Hz, 1H), 7.34-7.38 (m, 1H), 7.40-7.46 (m, 4H),
8.36-8.39 (m, 2H), 8.74 (s, 1H), 9.22 (s, 1H)
Data for 129-Ent2
[2081] HPLC: (Purity: 99.1%)
[2082] LCMS: (M+H: 371.1)
[2083] SFC: (ee: 99.2%)
[2084] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.06 (s,
3H), 1.54 (s, 3H), 4.41-4.44 (m, 1H), 4.81-4.86 (m, 1H), 6.43 (dd,
J=5.49, 1.83 Hz, 1H), 7.34-7.38 (m, 1H), 7.40-7.46 (m, 4H),
8.36-8.39 (m, 2H), 8.74 (s, 1H), 9.22 (s, 1H)
Example 115: Synthesis of Compounds 130-Ent1 and 130-Ent2
##STR00159##
[2086] Compounds 130-Ent1 and 130-Ent2 can be made according to
Example 108.
[2087] SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um; Condition:
40% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min;
ABPR: 120 bar; MBPR: 60 psi) to give 130-Ent1 (2.3 mg, Rt=2.375
min) and 130-Ent2 (2.4 mg, Rt=3.193 min). The absolute
stereochemistry was not determined.
Data for 130-Ent1
[2088] HPLC: (Purity: 94.6%)
[2089] LCMS: (M+H: 371.1)
[2090] SFC: (ee: 98.4%)
[2091] .sup.1H NMR (500 MHz, CHLOROFORM-d.sub.3) .delta. ppm 1.06
(s, 3H), 1.52 (s, 4H), 4.60-4.70 (m, 1H), 4.98-5.08 (m, 1H),
6.45-6.48 (m, 1H), 7.33-7.60 (m, 4H), 8.20-8.27 (m, 1H), 8.65-8.72
(m, 1H), 9.04 (s, 1H)
Data for 130-Ent2
[2092] HPLC: (Purity: 97.0%)
[2093] LCMS: (M+H: 371.1)
[2094] SFC: (ee: 100%)
[2095] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.06 (s,
3H), 1.52 (s, 4H), 4.60-4.70 (m, 1H), 4.98-5.08 (m, 1H), 6.45-6.48
(m, 1H), 7.33-7.60 (m, 4H), 8.20-8.27 (m, 1H), 8.65-8.72 (m, 1H),
9.04 (s, 1H)
Example 116: Synthesis of Compounds 131-Ent1 and 131-Ent2
##STR00160##
[2097] Compounds 131-Ent1 and 131-Ent2 can be made according to
Example 108.
[2098] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
15% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 20 psi) to give 131-Ent1 (2.7 mg, Rt=2.228 min) and
131-Ent2 (2.6 mg, Rt=2.858 min). The absolute stereochemistry was
not determined.
Data for 131-Ent1
[2099] HPLC: (Purity: 95.6%)
[2100] LCMS: (M+H: 371.1)
[2101] SFC: (ee: 98.5%)
[2102] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.03 (s,
3H), 1.52 (s, 3H), 4.28-4.32 (m, 1H), 4.54 (dd, J=17.09, 1.83 Hz,
1H), 6.39 (dd, J=5.49, 1.83 Hz, 1H), 7.38-7.42 (m, 1H), 7.43-7.46
(m, 4H), 8.69 (s, 2H), 8.70 (s, 1H), 9.10 (s, 1H)
Data for 131-Ent2
[2103] HPLC: (Purity: 98.4%)
[2104] LCMS: (M+H: 371.1)
[2105] SFC: (ee: 100%)
[2106] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.02 (s,
3H), 1.52 (s, 3H), 4.28-4.32 (m, 1H), 4.54 (dd, J=17.09, 1.83 Hz,
1H), 6.39 (dd, J=5.49, 1.83 Hz, 1H), 7.39-7.42 (m, 1H), 7.43-7.46
(m, 4H), 8.69 (s, 2H), 8.70 (s, 1H), 9.10 (s, 1H)
Example 117: Synthesis of Compounds 132-Ent1 and 132-Ent2
##STR00161##
[2108] Compounds 132-Ent1 and 132-Ent2 can be made according to
Example 108.
[2109] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
40% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 40 psi) to give 132-Ent1 (2.0 mg, Rt=2.515 min) and
132-Ent2 (2.3 mg, Rt=2.995 min). The absolute stereochemistry was
not determined.
Data for 132-Ent1
[2110] HPLC: (Purity: 98.6%)
[2111] LCMS: (M: 370.1)
[2112] SFC: (ee: 100%)
[2113] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.10 (s,
3H), 1.54 (s, 3H), 4.37 (dd, J=16.48, 6.10 Hz, 1H), 4.47-4.51 (m,
1H), 6.43 (dd, J=6.10, 1.83 Hz, 1H), 7.39-7.47 (m, 5H), 7.71 (dd,
J=6.10, 3.05 Hz, 1H), 8.64 (s, 1H), 9.19 (d, J=6.10 Hz 1H), 9.30
(s, 1H)
Data for 132-Ent2
[2114] HPLC: (Purity: 100%)
[2115] LCMS: (M: 370.1)
[2116] SFC: (ee: 100%)
[2117] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.10 (s,
3H), 1.54 (s, 3H), 4.37 (dd, J=16.48, 6.10 Hz, 1H), 4.47-4.51 (m,
1H), 6.43 (dd, J=6.10, 1.83 Hz, 1H), 7.39-7.47 (m, 5H), 7.72 (dd,
J=6.10, 3.05 Hz, 1H), 8.64 (s, 1H), 9.19 (d, J=6.10 Hz 1H), 9.30
(s, 1H)
Example 118: Synthesis of Compounds 133-Ent1 and 133-Ent2
##STR00162##
[2119] Compounds 133-Ent1 and 133-Ent2 can be made according to
Example 108.
[2120] SFC (Column: CHIRALCEL OD-H 30.times.250 mm, 5 um;
Condition: 30% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100
mL/min; ABPR: 120 bar; MBPR: 60 psi) to give 133-Ent1 (18.7 mg,
Rt=2.810 min) and 133-Ent2 (17.9 mg, Rt=3.235 min). The absolute
stereochemistry was not determined.
Data for 133-Ent1
[2121] HPLC: (Purity: 98.6%)
[2122] LCMS: (M+H: 385.2)
[2123] SFC: (ee: 100%)
[2124] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.14 (s,
3H), 1.54 (s, 3H), 2.79 (s, 3H), 4.28 (dd, J=18.31, 1.83 Hz, 1H),
5.06-5.11 (m, 1H), 6.46 (dd, J=6.10, 1.83 Hz, 1H), 7.37-7.46 (m,
5H), 8.32 (d, J=6.71 Hz, 1H), 8.57 (s, 1H), 8.66 (d, J=6.71 Hz,
1H)
Data for 133-Ent2
[2125] HPLC: (Purity: 100%)
[2126] LCMS: (M+H: 385.2)
[2127] SFC: (ee: 100%)
[2128] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.14 (s,
3H), 1.54 (s, 3H), 2.79 (s, 3H), 4.28 (dd, J=18.31, 1.83 Hz, 1H),
5.05-5.10 (m, 1H), 6.47 (dd, J=6.10, 1.83 Hz, 1H), 7.37-7.46 (m,
5H), 8.32 (d, J=6.71 Hz, 1H), 8.57 (s, 1H), 8.66 (d, J=6.71 Hz,
1H)
Example 119: Synthesis of Compounds 134-Ent1 and 134-Ent2
##STR00163##
[2130] Compounds 134-Ent1 and 134-Ent2 can be made according to
Example 108.
[2131] SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um; Condition:
25% 2-Propanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min;
ABPR: 120 bar; MBPR: 60 psi) to give 134-Ent1 (11.6 mg, Rt=1.642
min) and 134-Ent2 (13.6 mg, Rt=1.773 min). The absolute
stereochemistry was not determined.
Data for 134-Ent1
[2132] HPLC: (Purity: 100%)
[2133] LCMS: (M+H: 385.2)
[2134] SFC: (ee: 97.2%)
[2135] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.11 (s,
3H), 1.53 (s, 3H), 2.62 (s, 3H), 4.31 (dd, J=18.31, 1.83 Hz, 1H),
5.04 (dd, J=18.92, 6.1 Hz, 1H), 6.45 (dd, J=6.1, 1.83 Hz, 1H),
7.36-7.44 (m, 5H), 8.23 (s, 1H), 8.61 (s, 1H), 9.01 (s, 1H)
Data for 134-Ent2
[2136] HPLC: (Purity: 95.6%)
[2137] LCMS: (M+H: 385.2)
[2138] SFC: (ee: 92.5%)
Example 120: Synthesis of Compounds 135-Ent1 and 135-Ent2
##STR00164##
[2140] Compounds 135-Ent1 and 135-Ent2 can be made according to
Example 108.
[2141] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.12 (s,
3H), 1.53 (s, 3H), 2.62 (s, 3H), 4.31 (dd, J=18.31, 1.83 Hz, 1H),
5.04 (dd, J=18.92, 6.1 Hz, 1H), 6.45 (dd, J=6.1, 1.83 Hz, 1H),
7.36-7.44 (m, 5H), 8.23 (s, 1H), 8.61 (s, 1H), 9.01 (s, 1H)
[2142] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
40% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 40 psi) to give 135-Ent1 (3.3 mg, Rt=2.029 min) and
135-Ent2 (4.3 mg, Rt=2.450 min). The absolute stereochemistry was
not determined.
Data for 135-Ent1
[2143] HPLC: (Purity: 97.7%)
[2144] LCMS: (M: 372.2)
[2145] SFC: (ee: 97.3%)
[2146] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.0 (s, 3H),
1.53 (s, 3H), 3.25 (s, 3H), 4.64-4.76 (m, 2H), 6.41 (br s, 1H), 7.0
(br s, 1H), 7.29-7.33 (m, 1H), 7.41-7.45 (m, 1H), 7.47-7.50 (m, 4H)
8.63 (s, 1H)
Data for 135-Ent2
[2147] HPLC: (Purity: 100%)
[2148] LCMS: (M: 372.2)
[2149] SFC: (ee: 92.5%)
[2150] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.0 (s, 3H),
1.53 (s, 3H), 3.25 (s, 3H), 4.64-4.76 (m, 2H), 6.41 (br s, 1H), 7.0
(br s, 1H), 7.29-7.33 (m, 1H), 7.41-7.45 (m, 1H), 7.46-7.50 (m, 4H)
8.63 (s, 1H)
Example 121: Synthesis of Compounds 136-Ent1 and 136-Ent2
##STR00165##
[2152] Compounds 136-Ent1 and 136-Ent2 can be made according to
Example 108.
[2153] SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um; Condition:
30% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 40 psi) to give 136-Ent1 (8.4 mg, Rt=1.896 min) and
136-Ent2 (8.3 mg, Rt=2.426 min). The absolute stereochemistry was
not determined.
Data for 136-Ent1
[2154] HPLC: (Purity: 95.4%)
[2155] LCMS: (M: 372.2)
[2156] SFC: (ee: 99.3%)
[2157] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.0 (s, 3H),
1.52 (s, 3H), 3.20 (s, 3H), 4.27 (dd, J=18.01, 5.19 Hz, 1H),
4.38-4.42 (m, 1H), 6.14-6.17 (m, 1H), 6.35 (dd, J=5.49, 1.83 Hz,
1H), 7.37-7.42 (m, 1H), 7.44-7.49 (m, 4H), 7.53 (d, J=1.83 Hz, 1H),
8.73 (s, 1H)
Data for 136-Ent2
[2158] HPLC: (Purity: 99.6%)
[2159] LCMS: (M: 372.2)
[2160] SFC: (ee: 98.9%)
[2161] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.0 (s, 3H),
1.52 (s, 3H), 3.20 (s, 3H), 4.27 (dd, J=18.01, 5.19 Hz, 1H),
4.38-4.42 (m, 1H), 6.14-6.17 (m, 1H), 6.35 (dd, J=5.49, 1.83 Hz,
1H), 7.37-7.42 (m, 1H), 7.44-7.49 (m, 4H), 7.53 (d, J=1.83 Hz, 1H),
8.73 (s, 1H)
Example 122: Synthesis of Compounds 137-Ent1 and 137-Ent2
##STR00166##
[2163] Compounds 137-Ent1 and 137-Ent2 can be made according to
Example 108.
[2164] SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um; Condition:
40% Ethanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 40 psi) to give 137-Ent1 (13.0 mg, Rt=2.220 min) and
137-Ent2 (13.4 mg, Rt=2.669 min). The absolute stereochemistry was
not determined.
Data for 137-Ent1
[2165] HPLC: (Purity: 98.9%)
[2166] LCMS: (M+H: 373.2)
[2167] SFC: (ee: 100%)
[2168] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.92 (s,
3H), 1.49 (s, 3H), 3.90 (s, 3H), 4.34 (dd, J=17.7, 5.49 Hz, 1H),
4.50 (dd, J=17.40, 2.14 Hz, 1H), 6.30 (dd, J=5.49, 1.83 Hz, 1H),
7.31-7.39 (m, 5H), 7.56 (s, 1H), 8.07 (s, 1H), 8.81 (s, 1H)
Data for 137-Ent2
[2169] HPLC: (Purity: 100%)
[2170] LCMS: (M+H: 373.2)
[2171] SFC: (ee: 98.5%)
[2172] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.93 (s,
3H), 1.49 (s, 3H), 3.90 (s, 3H), 4.34 (dd, J=17.7, 5.49 Hz, 1H),
4.50 (dd, J=17.40, 2.14 Hz, 1H), 6.30 (dd, J=5.49, 1.83 Hz, 1H),
7.32-7.37 (m, 5H), 7.56 (s, 1H), 8.07 (s, 1H), 8.81 (s, 1H)
Example 123: Synthesis of Compounds 138-Ent1 and 138-Ent2
##STR00167##
[2174] Compounds 138-Ent1 and 138-Ent2 can be made according to
Example 108.
[2175] SFC (Column: CHIRALPAK IB 30.times.250 mm, 5 um; Condition:
25% Methanol w/ 0.1% DEA in CO.sub.2; Flow Rate: 100 mL/min; ABPR:
120 bar; MBPR: 40 psi) to give 138-Ent1 (15.4 mg, Rt=2.046 min) and
138-Ent2 (14.8 mg, Rt=2.409 min). The absolute stereochemistry was
not determined.
Data for 138-Ent1
[2176] HPLC: (Purity: 95.2%)
[2177] LCMS: (M: 372.2)
[2178] SFC: (ee: 97.2%)
[2179] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.96 (s,
3H), 1.49 (s, 3H), 3.83 (s, 3H), 4.51 (dd, J=18.62, 2.14 Hz, 1H),
4.63 (dd, J=18.62, 5.80 Hz, 1H), 6.32 (dd, J=5.49, 1.83 Hz, 1H),
6.65 (d, J=2.44 Hz, 1H), 7.27 (d, J=2.44 Hz, 1H), 7.29-7.33 (m,
1H), 7.35-7.41 (m, 4H), 8.80 (m, 1H)
Data for 138-Ent2
[2180] HPLC: (Purity: 95.6%)
[2181] LCMS: (M: 372.2)
[2182] SFC: (ee: 95.4%)
[2183] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.96 (s,
3H), 1.49 (s, 3H), 3.83 (s, 3H), 4.51 (dd, J=18.62, 2.14 Hz, 1H),
4.63 (dd, J=18.62, 5.80 Hz, 1H), 6.32 (dd, J=5.49, 1.83 Hz, 1H),
6.66 (d, J=2.44 Hz, 1H), 7.27 (d, J=2.44 Hz, 1H), 7.30-7.33 (m,
1H), 7.35-7.41 (m, 4H), 8.80 (m, 1H)
Example 124: Synthesis of Compound 166
##STR00168##
[2184] Preparation of 166-B
[2185] A solid portion of hydroxylamine hydrochloride (1.37 g,
19.72 mmol, 820.36 uL) was dissolved in ethanol (48.00 mL) and Sat
NaHCO.sub.3 (12.00 mL). The solution was stirred until no longer
turbid. Compound 166-A (Yajima, A., Mori, K. Tetrahedron Letters,
2000, 41, p. 351-354) (1.17 g, 4.64 mmol) was added as a solid. The
reaction was stirred at RT for 1.5 h then diluted with 50 mL of sat
NaHCO.sub.3 solution (caution: bubbling) and 200 mL of ethyl
acetate. The reaction was further diluted with 50 mL brine and the
layers were separated. The aq phase was extracted twice with 75 mL
EtoAc and the combined organic phases were washed with brine, dried
over MgSO.sub.4, filtered, and concentrated to afford 1.36 g of
crude 166-B which was used without further purification.
[2186] .sup.1H NMR (500 MHz, DMSO-d.sub.6) .delta. ppm 0.77 (s, 3H)
0.93 (s, 3H) 1.09 (s, 3H) 1.11-1.24 (m, 1H) 1.37 (dd, J=11.60, 3.05
Hz, 1H) 1.42-1.58 (m, 4H) 1.64-1.80 (m, 2H) 1.81-1.98 (m, 2H) 3.12
(br dd, J=14.35, 3.36 Hz, 1H) 3.32 (s, 1H) 3.73-3.84 (m, 1H)
3.84-3.95 (m, 3H) 10.16 (s, 1H)
Preparation of 166-C
[2187] A solid portion of sodium bicarbonate (3.42 g, 40.69 mmol)
was added to 20 mL of water and stirred at RT for 10 min. Compound
166-B (1.36 g, 5.09 mmol) in 45 mL of acetone was added, followed
by tosyl chloride (1.94 g, 10.17 mmol) in 4.5 mL of acetone. The
reaction was heated to 65.degree. C. and stirred for 2 h. An
additional charge of tosyl chloride (1 eq) and sodium bicarbonate
(4 eq) were added and the reaction was heated back to 65.degree. C.
After 2 h, the reaction was concentrated to remove acetone and
diluted with ethyl acetate. The phases were separated and the ethyl
acetate layer was washed with sat NaHCO.sub.3 and brine, dried over
MgSO.sub.4, filtered, and concentrated. Purification on a 40 g
silica gel cartridge eluted with 20-60% acetone in heptanes
afforded 166-C (780.00 mg, 2.92 mmol, 57.32% yield) as the major
product.
[2188] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.83-1.00
(m, 6H) 1.44-1.50 (m, 3H) 1.52-1.71 (m, 5H) 1.73-1.83 (m, 2H)
1.87-2.00 (m, 3H) 2.50-2.58 (m, 2H) 3.91-4.04 (m, 4H) 5.59 (br s,
1H).
Preparation of 166-D
[2189] Compound 166-C (230.00 mg, 860.26 umol) was dissolved in 4
mL THF and treated with 2 mL of 1N HCL and allowed to stir
overnight. The reaction was diluted with 20 mL brine and 60 mL
EtOAc. The layers were separated and the aq. layer was extracted
with 20 mL EtOAc. The combined organic phases were washed with sat
NaHCO.sub.3 and brine, dried over MgSO.sub.4, filtered, and
concentrated to afford a white solid (180 mg).
[2190] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.06 (s, 3H)
1.17 (s, 3H) 1.60-1.66 (m, 4H) 1.77-2.09 (m, 6H) 2.39 (dt, J=15.26,
3.97 Hz, 1H) 2.56-2.65 (m, 2H) 2.70 (td, J=14.80, 5.19 Hz, 1H) 5.67
(br s, 1H)
Preparation of 166-E:
[2191] Compound 166-D (180.00 mg, 806.05 umol) and ethyl formate
(1.19 g, 16.12 mmol, 1.30 mL) were combined and treated with sodium
methoxide (4.3 M, 749.81 uL) and allowed to stir overnight. The
reaction was quenched by the addition of 3.2 mL of 1N HCl and
extracted with ethyl acetate. The organic phase was washed with
brine, dried over MgSO.sub.4, filtered, and concentrated to afford
a waxy solid. The solid was dissolved in 4 mL ethanol and 1 mL
water and treated with hydroxylamine hydrochloride (180.83 mg, 2.60
mmol, 108.28 uL) and stirred overnight. The reaction was
concentrated to remove ethanol. The reaction was further diluted
with ethyl acetate and washed with sat NaHCO.sub.3 and brine, dried
over MgSO.sub.4, filtered, and concentrated to afford 166-E (215.00
mg, 865.82 umol, 99.82% yield) as a white solid.
[2192] .sup.1H NMR (400 MHz, DMSO-d.sub.6) .delta. ppm 8.40 (s, 1H)
7.07 (s, 1H) 2.54-2.69 (m, 2H) 2.27-2.48 (m, 2H) 1.96-2.07 (m, 1H)
1.79-1.95 (m, 2H) 1.63-1.76 (m, 1H) 1.37-1.52 (m, 2H) 1.30 (s, 3H)
1.20 (s, 3H) 1.14-1.17 (m, 3H).
Preparation of 166-F:
[2193] Compound 166-E (215.00 mg, 865.82 umol) was dissolved in 5
mL methanol and treated with sodium methoxide (4.3 M, 805.41 uL).
The color of the reaction was noted to change from red then green,
then yellow. After 3 days, the reaction was quenched by addition of
3.5 mL of 1N HCl and concentrated to remove methanol. The organic
phase was partioned between ethyl acetate and brine. The layers
were separated and the organic phase dried over MgSO.sub.4,
filtered, and concentrated. The crude material was carried onto the
next step.
Preparation of 166:
[2194] Crude compound 166-F (215.00 mg, 865.82 umol) in 10 mL of
benzene was heated to reflux with DDQ (216.20 mg, 952.40 umol).
After 2 h, the reaction was cooled to RT, filtered through
Celite.TM. and rinsed with 10 mL of benzene. The filtrate was
concentrated and deposited on silica gel (1.2 g). Purified by
column chromatography three times--twice using 30-50% acetone in
heptane on 12 g column, the final purification using 90-100% ethyl
acetate in heptane on a 4 g silica gel column. Isolated 166 (56.00
mg, 227.37 umol, 26.26% yield, 100% purity) as a yellow/orange
solid.
[2195] HPLC purity: >99%
[2196] LCMS: (M+H) 247.1
[2197] ee: unknown
[2198] .sup.1H NMR (500 MHz, DMSO-d6) .delta. ppm 0.96-1.02 (m, 3H)
1.18 (s, 3H) 1.39-1.52 (m, 1H) 1.54-1.60 (m, 3H) 1.76-1.96 (m, 3H)
2.12-2.21 (m, 1H) 2.31 (br s, 1H) 2.57 (ddd, J=15.11, 12.97, 1.83
Hz, 1H) 7.74 (s, 1H) 7.80 (s, 1H).
Example 125: Synthesis of Compound 167
##STR00169##
[2199] Preparation of 167-A
[2200] To a suspension of Sodium hydride, 60% dispersion in mineral
oil (44.00 mg, 1.10 mmol) in THF (1.1 mL) was added 166-C (268.00
mg, 1.00 mmol) in 4 mL THF. The reaction was allowed to stir at RT
for 1 h. Added iodomethane (177.43 mg, 1.25 mmol, 77.82 uL) was
added and the reaction was allowed to stir overnight. The reaction
was quenched by addition of sat NH.sub.4Cl solution, extracted with
ethyl acetate, and washed with brine. The organic phases were dried
over MgSO.sub.4, filtered, and concentrated. The crude reaction
mixture was deposited on 1.5 g silica gel and eluted on 12 g silica
gel column with 30-50% acetone in heptanes to afford 167-A as a
white solid.
[2201] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.95 (s, 3H)
1.05 (s, 3H) 1.37 (s, 3H) 1.52 (dt, J=13.73, 4.12 Hz, 1H) 1.66-1.85
(m, 5H) 1.87-2.06 (m, 2H) 2.21-2.29 (m, 1H) 2.47-2.66 (m, 2H) 2.82
(s, 3H) 3.80-4.04 (m, 4H).
Preparation of 167-B
[2202] Compound 167-A (225.00 mg, 799.60 umol) was dissolved in 4
mL THF and treated with 2 mL of 1N HCL and allowed to stir
overnight. The reaction was diluted with 20 mL brine and 60 mL
EtOAc and the layers were separated. The aqueous layer was
extracted with 20 mL EtOAc. The combined organic phases were washed
with sat. NaHCO.sub.3 and brine, dried over MgSO.sub.4, filtered,
and concentrated to afford a white crystalline solid called 167-B
(190.00 mg, 800.54 umol, 100.12% yield).
[2203] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 2.92 (s, 3H)
2.69-2.78 (m, 1H) 2.58-2.65 (m, 1H) 2.47-2.57 (m, 1H) 2.33-2.44 (m,
1H) 2.08-2.28 (m, 3H) 1.73-1.94 (m, 4H) 1.54 (s, 3H) 1.19 (s, 3H)
1.14 (s, 3H).
Preparation of 167-C:
[2204] Compound 167-B (180.00 mg, 758.41 umol) and ethyl formate
(1.12 g, 15.17 mmol, 1.22 mL) were combined and treated with sodium
methoxide (4.3 M, 705.49 uL) and allowed to stir overnight. The
reaction was quenched by the addition of 3.2 mL of 1N HCl and
extracted with ethyl acetate. The organic phase was washed with
brine, dried over MgSO.sub.4, filtered, and concentrated to afford
a yellow oil. The yellow oil (200.00 mg, 753.72 umol) was dissolved
in 4 mL ethanol and 1 mL water. To this solution was added
hydroxylamine hydrochloride (157.13 mg, 2.26 mmol, 94.09 uL) and
stirred overnight. The reaction was concentrated to remove ethanol
and then diluted with ethyl acetate. The organic phase was washed
with sat NaHCO.sub.3 and brine, then dried over MgSO.sub.4,
filtered, and concentrated to afford 167-C as a white solid.
[2205] LCMS (M+H)=263.1
Preparation of 167-D
[2206] Compound 167-C (200.00 mg, 762.34 umol) was dissolved in 5
mL methanol and treated with sodium methoxide (4.3 M, 709.15 uL)
and allowed to stir at RT. After 3 days, the reaction was quenched
by addition of 3.5 mL of 1N HCl and concentrated to remove
methanol. The organic phase was partitioned between ethyl acetate
and brine. The layers were separated and the organic phase dried
over MgSO.sub.4, filtered, and concentrated. The crude material
(167-D) was carried onto the next step.
[2207] LCMS (M+H)=263.1
Preparation of 167
[2208] Crude compound 167-D (140.00 mg, 533.64 umol) was dissolved
in 6 mL of anhydrous benzene and treated with DDQ and heated to
reflux for 1 h. The reaction was concentrated and purified by two
silica gel columns using 35% acetone in heptane to afford 167
(58.00 mg, 222.79 umol, 41.75% yield, 100% purity).
[2209] .sup.1H NMR (500 MHz, DMSO-d6) .delta. ppm 0.97 (s, 3H) 1.17
(s, 3H) 1.31-1.47 (m, 1H) 1.71 (s, 3H) 1.82-2.00 (m, 3H) 2.13-2.23
(m, 1H) 2.42 (dd, J=15.57, 4.58 Hz, 1H) 2.78-2.97 (m, 4H) 8.17 (s,
1H).
[2210] LCMS (M+H)=261.1
[2211] Ee: unknown
[2212] HPLC Purity >99%
[2213] Examples 126 to 132 are intentionally deleted.
Example 133: Synthesis of Compound 149
##STR00170##
[2215] To a solution of compound 139 (107.90 mg, 343.39 umol) in
DMF (936.42 mg, 12.81 mmol, 996.19 uL) was added sodium
methanesulfinate (157.76 mg, 1.55 mmol) and Copper(I) iodide (98.10
mg, 515.09 umol, 17.46 uL). Reaction mixture was degassed under an
atmosphere of nitrogen and stirred at 135.degree. C. for overnight.
Added EtOAc then washed with NaHCO.sub.3(aq), H.sub.2O, and Brine.
The organic layer was dried over sodium sulfate and solvent removed
in vacuo. The residue was purified by reversed phase chromatography
(C-18) to yield compound (149 (18.1 mg, 17% yld) as an off white
solid powder.
[2216] LCMS: ESI-MS (M+H).sup.+: 314.1
[2217] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. 7.74-7.81 (m,
1H), 4.89-4.95 (m, 0.36H), 4.70 (dd, J=1.83, 12.21 Hz, 0.52H), 4.06
(td, J=2.14, 13.43 Hz, 0.54H), 3.74 (dd, J=1.83, 12.82 Hz, 0.36H),
3.20 (d, J=3.66 Hz, 3H), 3.13-3.19 (m, 0.44H), 3.09-3.13 (m,
0.66H), 2.54 (d, J=12.21 Hz, 1H), 2.24 (s, 3H), 1.94 (br s, 1H),
1.64-1.82 (m, 2H), 1.25 (s, 4H), 1.20-1.22 (m, 2H), 1.14 (s,
3H)
Example 134: Procedure for the Synthesis of Compounds 150-Ent1 and
150-Ent2
##STR00171##
[2218] Procedure for Preparation of Compound 150-A
[2219] To a solution of ethyl 3-(methylamino)propanoate (10.00 g,
76.24 mmol), 2-bromo-3-phenyl-propanoic acid (17.46 g, 76.24 mmol),
and DMAP (931.39 mg, 7.62 mmol) in DCM (381.20 mL) was added DIC
(10.58 g, 83.86 mmol, 12.90 mL) at 0.degree. C. The reaction was
warmed to room temperature and stirred for 24 hours. The mixture
was then quenched upon addition of water. The layers were separated
and the aqueous layer was extracted 2.times. with DCM. The combined
organic layers were dried over sodium sulfate, filtered, and
concentrated then purified by flash chromatography (5-40%
EtOAc/heptane) to provide 7.14 g (27% yield) of 150-A as an
apparent mixture of amide rotomers.
[2220] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.36-7.28 (m,
3H), 7.27-7.20 (m, 2H), 4.87-4.80 (m, 1H, minor rotamer), 4.56 (dd,
J=6.7, 8.5 Hz, 1H, major rotamer), 4.15-4.06 (m, 2H), 3.76 (td,
J=7.4, 15.1 Hz, 1H, minor rotamer), 3.64-3.53 (m, 2H), 3.36 (ddd,
J=5.5, 7.3, 15.3 Hz, 1H, minor rotamer), 3.31-3.20 (m, 1H), 3.00
(s, 3H, major rotamer), 2.92 (s, 3H, minor rotamer), 2.59-2.49 (m,
2H), 2.43-2.32 (m, 1H, minor rotamer), 1.34-1.15 (m, 3H, major
rotamer), 0.89 (t, J=7.0 Hz, 3H, minor rotamer).
Procedure for Preparation of Compound 150-B
[2221] THF (30.62 mL) was added to an oven dried flask under
nitrogen. The solution was heated to 60.degree. C. and a solution
of 150-A (6.55 g, 19.14 mmol) in THF (45.94 mL) was added
simultaneously with a 2M solution of tert-butyl(chloro)magnesium
(23.93 mL) in ethyl ether. The mixture was then stirred at
60.degree. C. for 2 h then cooled to room temperature. The mixture
was diluted with saturated ammonium chloride solution and extracted
with EtOAc (3.times.). The combined organic layers were washed with
brine, dried over sodium sulfate, filtered, and concentrated. The
residue was purified by flash chromatography (5-50% EtOAc/heptane)
to obtain 1.96 g (47% yield) of 150-B as a white solid which
appeared as a mixture of tautomers by .sup.1H NMR.
[2222] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.31-7.18 (m,
5H), 3.74 (s, 1H, minor tautomer), 3.48-3.28 (m, 4H, major and
minor tautomers), 3.02 (s, 3H, major tautomer), 2.99 (s, 3H, minor
tautomer), 2.98-2.90 (m, 1H, major and minor tautomers), 2.78 (d,
J=4.9 Hz, 1H, minor tautomer), 2.62-2.37 (m, 2H, major and minor
tautomers).
Procedure for Preparation of Compound 150-C
[2223] To a solution of 150-B (1.96 g, 9.02 mmol) in acetonitrile
(18.04 mL) was added triethylamine (2.50 mL, 18.04 mmol) and ethyl
vinyl ketone (1.07 mL, 10.82 mmol). The mixture was heated to
75.degree. C. overnight then concentrated. The residue was then
dissolved in MeOH (45 mL) at room temperature under nitrogen and
NaOMe (4.37 M, 2.48 mL) was added. The mixture was then stirred for
15 hours at which point a saturated, aqueous solution of ammonium
chloride was added followed by EtOAc. The layers were separated and
the aqueous layer was extracted with EtOAc (2.times.). The combined
organic layers were dried over sodium sulfate, filtered, and
concentrated. The residue was then purified by flash chromatography
(5-60% EtOAc/Heptane) to provide 150-C as a red oil (750 mg, 29%
yield).
[2224] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.26-7.22 (m,
3H), 7.10-7.03 (m, 2H), 3.45 (d, J=12.8 Hz, 1H), 3.19 (ddd, J=4.3,
11.0, 12.2 Hz, 1H), 3.01 (br d, J=13.4 Hz, 2H), 2.98 (s, 3H),
2.71-2.57 (m, 2H), 2.55-2.48 (m, 2H), 2.04 (dt, J=5.5, 13.4 Hz,
1H), 1.82 (s, 3H), 1.69-1.62 (m, 1H).
Procedure for Preparation of Compound 150-D
[2225] To a solution of 150-C (750.00 mg, 2.65 mmol) in THF (16.56
mL) was added potassium tert-butoxide (1 M in THF, 3.18 mL) slowly
at 0.degree. C. The resulting solution was stirred at 0.degree. C.
for 60 minutes. Iodomethane (376.14 mg, 2.65 mmol, 165 uL) was then
added and the suspension was slowly warmed to room temperature and
stirred at this temperature overnight. The mixture was quenched by
addition of saturated aqueous ammonium chloride and diluted with
EtOAc. The layers were separated and the aqueous layer was
extracted with EtOAc (3.times.). The combined organic layers were
washed with brine then dried over sodium sulfate, filtered, and
concentrated. The material was then purified by flash
chromatography (5-50% EtOAc/heptanes) to obtain 441.5 mg (56%
yield) of 150-D.
[2226] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 7.23-7.19 (m,
3H), 7.06-7.01 (m, 2H), 5.69 (dd, J=1.8, 5.5 Hz, 1H), 3.18 (dd,
J=5.5, 17.1 Hz, 1H), 3.00 (d, J=12.8 Hz, 1H), 2.72-2.68 (m, 4H),
2.66-2.48 (m, 4H), 2.24 (dd, J=1.5, 17.4 Hz, 1H), 1.51 (s, 3H),
1.34 (s, 3H).
Procedure for Preparation of Compound 150-E
[2227] 150-D (440.14 mg, 1.48 mmol) was dissolved in ethyl formate
(2.38 mL, 29.60 mmol) and treated with sodium methoxide (4.37 M in
methanol, 1.35 mL). The mixture was diluted with toluene (21.14 mL)
and stirred for 16 hrs. Water was then added followed by 1M HCl to
adjust the pH to .about.5. The mixture was then concentrated to
remove methanol before ethyl acetate was then added and the layers
were separated. The organic phase was washed with brine then dried
over sodium sulfate, filtered, and concentrated. The crude residue
was then used in the next step without further purification. LCMS:
(M+H=326.1). To a solution of
8a-benzyl-2,5,5-trimethyl-1,6-dioxo-1,2,3,5,6,7,8,8a-octahydroisoquinolin-
e-7-carbaldehyde (482 mg, 1.48 mmol) in ethanol (6.87 mL) and water
(0.53 mL) was added hydroxylamine hydrochloride (1.03 g, 14.80
mmol). The solution was stirred under reflux for 2 hours. The
solvent was removed to provide a solid. The solid was then
dissolved in saturated aqueous sodium bicarbonate and ethyl
acetate. The layers were then separated and the organic layer was
washed with water then dried over sodium sulfate, filtered, and
concentrated. The crude 150-E was then used in the next step
without further purification.
[2228] LCMS: (M+H=323.2)
Procedure for Preparation of Compound 150-F
[2229] To a solution of 150-E (477 mg, 1.48 mmol) in ether (14.8
mL) under nitrogen was added sodium methoxide (4.37 M in methanol,
1.69 mL) at room temperature. The mixture was stirred at this
temperature for 4 hrs then diluted with EtOAc then washed with 5%
HCl solution (2.times.) then washed with water and brine before
being dried over sodium sulfate then filtered and concentrated. The
crude 150-F obtained was used in the next step in the sequence
without further purification.
[2230] LCMS: (M+H=323.1)
Procedure for Preparation of Compounds 150-Ent1 and 150-Ent2
[2231] Compound 150-F (477 mg, 1.48 mmol) was dissolved in DMF
(12.9 mL) and cooled to 0.degree. C.
1,3-dibromo-5,5-dimethyl-imidazolidine-2,4-dione (254 mg, 888 umol)
was added and the mixture was stirred for 1.5 hours at this
temperature. Pyridine (2.00 mL) was then added and the mixture was
heated to 60.degree. C. for 4 hours. The mixture was then cooled to
room temperature and concentrated. The material was then purified
by column chromatography to obtain 254.6 mg (53% yield) of the
desired product. The racemate was then separated by SFC (Column:
CHIRALPAK IA 30.times.250 mm, 5 um; method: 25% Methanol in CO2
(flow rate: 100 mL/min), ABPR 120 bar, MBPR 20 psi) to obtain
150-Ent1 (46 mg, Rt=1.83 min) and 150-Ent2 (61.4 mg, Rt=2.18 min)
as off-white solids.
Data for 150-Ent1
[2232] HPLC: (Purity: 98%)
[2233] LCMS: (M+H=321.1)
[2234] SFC: (ee: 100%)
[2235] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.39 (s, 1H),
7.30-7.35 (m, 1H), 7.27-7.30 (m, 2H), 7.10-7.17 (m, 2H), 5.85 (dd,
J=5.80, 1.53 Hz, 1H), 3.34 (d, J=12.82 Hz, 1H), 3.21 (dd, J=17.70,
6.10 Hz, 1H), 2.97 (d, J=12.82 Hz, 1H), 2.70 (s, 3H), 2.23 (dd,
J=17.70, 1.83 Hz, 1H), 1.65 (s, 3H), 1.45 (s, 3H).
Data for 150-Ent2
[2236] HPLC: (Purity: 98%)
[2237] LCMS: (M+H=321.1)
[2238] SFC: (ee: 100%)
[2239] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.39 (s, 1H),
7.27-7.35 (m, 2H), 7.26 (s, 1H), 7.12-7.16 (m, 2H), 5.85 (dd,
J=6.10, 1.83 Hz, 1H), 3.34 (d, J=12.82 Hz, 1H), 3.22 (dd, J=17.70,
6.10 Hz, 1H), 2.97 (d, J=12.82 Hz, 1H), 2.70 (s, 3H), 2.23 (dd,
J=18.01, 1.53 Hz, 1H), 1.65 (s, 3H), 1.45 (s, 3H).
Example 135: Synthesis of Compound 151-Ent1 and 151-Ent2
##STR00172##
[2241] Compounds 151-Ent1 and 151-Ent2 can be synthesized in a
manner analogous to that described for compounds 70-Ent1 and
70-Ent2.
Procedure for the Synthesis of 151-A:
[2242] To a solution of ethyl 3-(methylamino)propanoate (5.1 g, 39
mmol), 2-(4-methoxyphenyl)acetic acid (7.1 g, 43 mmol) and HATU
(17.4 g, 46 mmol) in DCM (50 mL) was added TEA (7.8 g, 76 mmol).
The mixture was stirred at rt for 3 h. The mixture was poured into
water (50 mL), extracted with DCM (50 mL.times.3). The combined
organic layer was dried and concentrated. The residue was purified
by silica gel column (PE:EA=5:1) to give 151-A (9.5 g, Y: 87%) as a
brown oil.
[2243] LCMS: (M+H=280.1)
Procedure for the Purification and Chiral Separation of Compounds
151-Ent1 and 151-Ent2
[2244] Following DDQ oxidation, the reaction was concentrated and
the residue was then purified by column chromatography (10-75%
EtOAc/Heptane). The product (79.9 mg, 30% yield) was isolated as an
oil which was then separated by SFC (Column: CHIRALPAK IC
30.times.250 mm, 5 um; Method: 40% Methanol in CO2 [flow rate: 100
mL/min], ABPR 120 bar, MBPR 40 psi) to provide 151-Ent1 (13.3 mg,
Rt=2.74 min) and 151-Ent2 (15.9 mg, Rt=3.55 min) as off-white
solids.
Data for 151-Ent1
[2245] HPLC: (Purity: 95%)
[2246] LCMS: (M+H=337.1)
[2247] SFC: (ee: 100%)
[2248] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.80 (s, 1H),
7.25-7.22 (m, 2H), 6.91-6.86 (m, 2H), 6.15 (dd, J=5.5, 1.8 Hz, 1H),
4.19 (dd, J=18.3, 1.8 Hz, 1H), 3.92 (dd, J=18.3, 5.5 Hz, 1H), 3.80
(s, 3H), 2.97 (s, 3H), 1.44 (s, 3H), 0.89 (s, 3H).
Data for 151-Ent2
[2249] HPLC: (Purity: 99%)
[2250] LCMS: (M+H=337.1)
[2251] SFC: (ee: 100%)
[2252] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.80 (s, 1H)
7.22-7.25 (m, 2H) 6.85-6.91 (m, 2H) 6.15 (dd, J=5.49, 1.83 Hz, 1H)
4.19 (dd, J=18.31, 1.83 Hz, 1H) 3.92 (dd, J=18.31, 5.49 Hz, 1H)
3.80 (s, 3H) 2.97 (s, 3H) 1.44 (s, 3H) 0.89 (s, 3H).
Example 136: Synthesis of Compounds 151-Ent1 and 151-Ent2
##STR00173##
[2254] Compounds 152-Ent2 and 152-Ent2 can be synthesized in a
manner analagous to that described for compounds 151-Ent1 and
151-Ent2, starting with 3-fluorophenylacetic acid.
Purification and Chiral Separation of Compounds 152-Ent1 and
152-Ent2:
[2255] After reaction completion, the final DDQ oxidation reaction
was filtered and concentrated. The residue was then purified by
column chromatography (10-75% EtOAc/Heptane, 12 g column). The
product was isolated as an oil (126 mg, 20% yield) which was then
separated by SFC (Column: CHIRALPAK IA 30.times.250 mm, 5 um;
method: 15% Methanol in CO2 (flow rate: 100 mL/min), ABPR 120 bar,
MBPR 20 psi) to provide 152-Ent1 (18.1 mg, Rt=2.24 min) and
152-Ent2 (19.5 mg, Rt=2.79 min) as pale yellow solids.
Data for 152-Ent1
[2256] HPLC: (Purity: 97%)
[2257] LCMS: (M+H=325.2)
[2258] SFC: (ee: 100%)
[2259] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.76 (s, 1H),
7.37 (dt, J=5.8, 8.4 Hz, 1H), 7.15 (dd, J=1.8, 7.9 Hz, 1H),
7.06-7.01 (m, 2H), 6.20 (dd, J=2.1, 5.2 Hz, 1H), 4.24 (dd, J=1.8,
18.9 Hz, 1H), 3.96 (dd, J=4.9, 18.3 Hz, 1H), 2.98 (s, 3H), 1.45 (s,
3H), 0.87 (s, 3H).
Data for 152-Ent2
[2260] HPLC: (Purity: 98%)
[2261] LCMS: (M+H=325.2)
[2262] SFC: (ee: 100%)
[2263] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.76 (s, 1H),
7.40-7.34 (m, 1H), 7.15 (dd, J=1.8, 7.9 Hz, 1H), 7.06-7.01 (m, 2H),
6.20 (dd, J=2.1, 5.2 Hz, 1H), 4.24 (dd, J=1.8, 18.9 Hz, 1H), 3.96
(dd, J=4.3, 18.9 Hz, 1H), 2.98 (s, 3H), 1.45 (s, 3H), 0.87 (s,
3H).
Example 137: Synthesis of Compounds 153-Ent1 and 153-Ent2
##STR00174##
[2265] Compounds 153-Ent2 and 153-Ent2 can be synthesized in a
manner analagous to that described for compounds 151-Ent1 and
151-Ent2, starting with 4-chlorophenylacetic acid.
Purification and Chiral Separation of Compounds 153-Ent1 and
153-Ent2:
[2266] After reaction completion, the final DDQ oxidation reaction
was filtered and concentrated. The residue was then purified by
column chromatography. The product (331 mg, 59% yield) was isolated
as an oil which was then separated by SFC (Column: CHIRALPAK IA
30.times.250 mm, 5 um; Method: 40% Methanol in CO2 (flow rate: 100
mL/min), ABPR 120 bar, MBPR 40 psi) to provide 153-Ent1 (69.1 mg,
Rt=1.76 min) and 153-Ent2 (65.3 mg, Rt=2.18 min) at white
solids.
Data for 153-Ent1
[2267] HPLC: (Purity: 100%)
[2268] LCMS: (M+H=341.1)
[2269] SFC: (ee: 100%)
[2270] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 8.76 (s, 1H),
7.33-7.38 (m, 2H), 7.27-7.30 (m, 2H), 6.19 (dd, J=5.27, 2.01 Hz,
1H), 4.20 (dd, J=18.57, 2.01 Hz, 1H), 3.95 (dd, J=18.45, 5.15 Hz,
1H), 2.97 (s, 3H), 1.44 (s, 3H), 0.87 (s, 3H).
Data for 153-Ent2
[2271] HPLC: (Purity: 100%)
[2272] LCMS: (M+H=341.1)
[2273] SFC: (ee: 100%)
[2274] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 8.76 (s, 1H),
7.33-7.39 (m, 2H), 7.27-7.30 (m, 2H), 6.19 (dd, J=5.27, 2.01 Hz,
1H), 4.20 (dd, J=18.57, 2.01 Hz, 1H), 3.95 (dd, J=18.45, 5.15 Hz,
1H), 2.97 (s, 3H), 1.44 (s, 3H), 0.87 (s, 3H).
Example 138: Synthesis of Compounds 154-Ent1 and 154-Ent2
##STR00175##
[2276] Compounds 154-Ent2 and 154-Ent2 can be synthesized in a
manner analagous to that described for compounds 151-Ent1 and
151-Ent2, starting with 4-fluorophenylacetic acid.
Purification and Chiral Separation of Compounds 154-Ent1 and
154-Ent2:
[2277] After reaction completion, the final DDQ oxidation reaction
was filtered and concentrated. The residue was then purified by
column chromatography to obtain 232 mg (41% yield) of the desired
product as an oil which was then separated by SFC (Column:
CHIRALPAK IC 30.times.250 mm, 5 um; Method: 30% Methanol in CO2
(flow rate: 100 mL/min), ABPR 120 bar, MBPR 40 psi) to obtain
154-Ent1 (35.2 mg, Rt=2.47 min) and 154-Ent2 (36.1 mg, Rt=3.00 min)
as off-white solids.
Data for 154-Ent1
[2278] HPLC: (Purity: 100%)
[2279] LCMS: (M+H=325.1)
[2280] SFC: (ee: 100%)
[2281] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.78 (s, 1H),
7.28-7.36 (m, 2H), 7.04-7.10 (m, 2H), 6.15-6.23 (m, 1H), 4.20 (dd,
J=18.92, 2.44 Hz, 1H), 3.95 (dd, J=18.31, 5.49 Hz, 1H), 2.98 (s,
3H), 1.45 (s, 3H), 0.87 (s, 3H).
Data for 154-Ent2
[2282] HPLC: (Purity: 100%)
[2283] LCMS: (M+H=325.1)
[2284] SFC: (ee: 100%)
[2285] .sup.1HNMR (500 MHz, CDCl.sub.3) .delta. ppm 8.78 (s, 1H),
7.30-7.34 (m, 2H), 7.05-7.10 (m, 2H), 6.18 (dd, J=5.19, 2.14 Hz,
1H), 4.20 (dd, J=18.31, 2.44 Hz, 1H), 3.95 (dd, J=18.31, 5.49 Hz,
1H), 2.98 (s, 3H), 1.45 (s, 3H), 0.87 (s, 3H).
Example 139: Synthesis of Compound 155-Ent1
##STR00176##
[2287] Compound 12-Ent1 (80.00 mg, 307.30 umol) was dissolved in a
solution of ethanol (2.00 mL) and water (500.00 uL)
Hydrido(dimethylphosphinous acid-kP)[hydrogen
bis(dimethylphosphinito-kP)]platinum(II) Ghaffar-Parkins catalyst
(39.57 mg, 92.19 umol) was added and the reaction was heated to
80.degree. C. for 18 hrs. The reaction was filtered and the
filtrate washed with 10 ml of methanol. Solvent was removed in
vacuo. Purification by column chromatography with 0-10% MeOH in
CH2Cl2 afforded the desired compound 155-Ent1 in 65% yield.
[2288] LCMS: ESI-MS (M+H).sup.+: 279.2.
[2289] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 8.45 (br d,
J=10.54 Hz, 1H), 7.95-8.14 (m, 1H), 5.71 (br s, 1H), 4.80-5.00 (m,
0.5H), 4.67 (dd, J=1.88, 12.67 Hz, 0.5H), 4.02 (td, J=2.20, 13.43
Hz, 0.5H), 3.68 (dd, J=1.76, 13.05 Hz, 0.5H), 2.96-3.15 (m, 1H),
2.45 (br d, J=12.55 Hz, 1H), 2.14 (d, J=15.31 Hz, 3H), 1.81-1.94
(m, 1H), 1.60-1.76 (m, 2H), 1.07-1.27 (m, 9H).
Example 140: Synthesis of Compound 155-Ent2
##STR00177##
[2291] Compound 155-Ent2 was made in a manner analogous to that
described for 155-Ent1.
[2292] LCMS: ESI-MS (M+H).sup.+: 279.1
[2293] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 8.44 (br d,
J=8.78 Hz, 1H), 7.90-8.11 (m, 1H), 7.90-8.11 (m, 1H), 5.81 (br s,
1H), 4.81-4.97 (m, 0.5H), 4.67 (dd, J=1.76, 12.55 Hz, 0.5H), 4.02
(td, J=2.13, 13.30 Hz, 0.5H), 3.68 (dd, J=1.88, 12.93 Hz, 0.5H),
2.95-3.15 (m, 1H), 2.40-2.59 (m, 1H), 2.15 (d, J=15.31 Hz, 3H),
1.83-1.96 (m, 1H), 1.60-1.76 (m, 2H), 1.07-1.27 (m, 9H).
Example 141: Synthesis of Compound 156
##STR00178##
[2295] Compound 139 (55.00 mg, 175.04 umol) and Copper(I) iodide
(40.00 mg, 210.04 umol) were dissolved in anhydrous NMP (1.00 mL)
in an flame dried vial under a nitrogen atmosphere. Methyl
2,2-difluoro-2-(fluorosulfonyl)acetate (218.57 mg, 1.14 mmol,
144.75 uL) was added and the reaction heated to 80.degree. C. for 6
hrs. Heating was turned down to 70.degree. C. and the reaction
stirred overnight. The crude reaction mixture was dilutes with
EtOAc and filtered. Purification by reverse phase HPLC: 20%
acetonitrile and linear gradient to 50% acetonitrile over 15 min in
0.1% TFA modifier (flow rate: 80 mL/min) afforded the desired
compound 156 in 30% yield.
[2296] LCMS: ESI-MS (M+H).sup.+: 304.0
[2297] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. 7.49 (d, J=11.04
Hz, 1H), 4.71-4.81 (m, 0.5H), 4.54 (dd, J=2.26, 12.55 Hz, 0.5H),
4.05-4.18 (m, 0.5H), 3.90 (dd, J=2.13, 13.18 Hz, 0.5H), 2.97-3.20
(m, 1H), 2.48-2.66 (m, 1H), 2.15 (d, J=16.56 Hz, 3H), 1.93-2.09 (m,
1H), 1.57-1.88 (m, 2H), 1.14-1.35 (m, 6H), 1.09 (d, J=1.51 Hz,
3H).
[2298] Examples 142 and 143 are intentionally deleted.
Example 144: Synthesis of Compounds 159 Ent1 and 159 Ent2
##STR00179##
[2300] Compound of 77-C was added to a flame dried vial. Copper(I)
iodide (48.59 mg, 255.14 umol, 8.65 uL), anhydrous NMP (5.00 mL)
and Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (265.50 mg, 1.38
mmol, 175.83 uL) were added. Nitrogen gas was bubbled through the
reaction mixture for 5 minutes and the reaction was sealed and
heated to 80.degree. C. for 6 hrs. Heating was turned down to
70.degree. C. and the reaction stirred overnight. The crude
reaction mixture was diluted with EtOAc and filtered. Purification
by reverse phase HPLC: 20% acetonitrile and linear gradient to 50%
acetonitrile over 15 min in 0.1% TFA modifier (flow rate: 80
mL/min) separated the dimethyl and monomethyl products. Further
purification of each set of isomers on a CHIRALPAK IG 30.times.250
mm, 5 um Column (15% Methanol (no modifier) in CO2 (flow rate: 100
mL/min), ABPR 120 bar, MBPR 40 psi) afforded three clean products
159-Ent1 and 159-Ent2.
[2301] Compound 159-Ent1
[2302] LCMS: ESI-MS (M+H).sup.+: 366.1.
[2303] .sup.1H NMR (400 MHz, Methanol-d4) .delta. 8.20 (s, 1H),
7.25-7.47 (m, 3H), 7.08-7.25 (m, 2H), 3.72-3.86 (m, 1H), 3.56-3.73
(m, 2H), 3.34-3.52 (m, 1H), 2.58 (dd, J=2.51, 13.30 Hz, 1H), 2.09
(ddt, J=7.03, 12.05, 13.55 Hz, 1H), 1.90 (ddd, J=2.51, 6.46, 13.87
Hz, 1H), 1.26 (t, J=7.15 Hz, 3H), 1.15 (s, 3H), 0.49 (s, 3H).
[2304] Compound 159-Ent2
[2305] LCMS: ESI-MS (M+H).sup.+: 366.1.
[2306] .sup.1H NMR (400 MHz, METHANOL-d.sub.4) .delta. 8.20 (s,
1H), 7.29-7.45 (m, 3H), 7.10-7.26 (m, 2H), 3.73-3.83 (m, 1H),
3.55-3.70 (m, 2H), 3.32-3.49 (m, 1H), 2.58 (dd, J=2.51, 13.30 Hz,
1H), 2.09 (ddt, J=7.03, 12.05, 13.55 Hz, 1H), 1.90 (ddd, J=2.51,
6.53, 13.80 Hz, 1H), 1.26 (t, J=7.15 Hz, 3H), 1.15 (s, 3H), 0.49
(s, 3H)
Example 145: Synthesis of Compounds 161-Ent1 and 161-Ent2
##STR00180## ##STR00181##
[2307] Preparation of Compound 161-A
[2308] Compound 69-D (325.00 mg, 1.15 mmol) and Cerium(III)
chloride heptahydrate (428.47 mg, 1.15 mmol, 2.88 mL) were combined
in 11.5 mL of methanol and cooled to -10.degree. C. using an
ice/salt bath. To the reaction was added Sodium borohydride (87.01
mg, 2.30 mmol) and the reaction was allowed to stir at -10.degree.
C. Ultimately warmed to +10.degree. C. over .about.3 h, quenched by
addition of water and stirred overnight. The solvent was removed in
vacuo. The reaction was partioned between ethyl acetate and 0.1N
HCl. The aqueous layer was extracted with ethyl acetate and the
combined organic phases and dried over MgSO.sub.4, filtered, and
concentrated to a pale white solid. The material was taken on to
the next step without further purification.
[2309] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.00-1.07
(m, 3H) 1.30-1.39 (m, 1H) 1.87 (s, 3H) 1.88-1.94 (m, 1H) 2.04 (ddd,
J=13.89, 5.34, 2.75 Hz, 1H) 2.27 (td, J=13.73, 2.44 Hz, 1H)
2.39-2.48 (m, 1H) 2.54-2.66 (m, 1H) 2.80-2.90 (m, 1H) 2.97 (ddd,
J=12.82, 6.71, 2.44 Hz, 1H) 3.21-3.33 (m, 1H) 3.53-3.65 (m, 1H)
4.08-4.15 (m, 1H) 7.23-7.27 (m, 1H) 7.30-7.37 (m, 4H).
Preparation of Compound 161-B
[2310] To a solution of Diiodomethane (183.01 mg, 683.29 umol,
54.96 uL) in 5 mL dichloromethane at 0.degree. C. was added
diethylzinc (562.62 mg, 683.29 umol, 614.89 uL, 15% purity) After 5
min, 161-A (150.00 mg, 525.61 umol) in 4.0 mL dichloromethane was
added. The reaction was allowed to slowly warm to RT over 4 h. The
desired product was noted by LC/MS. The reaction was allowed to
stir overnight and then treated with 1N NaOH for 20 min and
extracted with dichloromethane. The dichloromethane layers were
washed with brine, dried over MgSO.sub.4, filtered, and
concentrated. Silica gel purification using 40-70% ethyl acetate in
heptane afforded product 161-B (66.00 mg, 220.43 umol, 41.94%
yield)
[2311] LCMS (M+H) 300.1
[2312] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.42 (d,
J=5.49 Hz, 1H) 1.17 (t, J=7.02 Hz, 3H) 1.33 (d, J=5.49 Hz, 1H) 1.35
(d, J=3.66 Hz, 1H) 1.37-1.40 (m, 3H) 1.41-1.53 (m, 2H) 1.56 (s, 2H)
1.57-1.71 (m, 2H) 2.18-2.36 (m, 2H) 3.12-3.29 (m, 1H) 3.37 (td,
J=11.75, 5.19 Hz, 1H) 3.42-3.58 (m, 2H) 4.01-4.09 (m, 1H) 7.15-7.25
(m, 1H) 7.26-7.39 (m, 2H) 7.46-7.61 (m, 2H).
Preparation of Compound 161-C
[2313] To a solution of 161-B (132.49 mg, 442.50 umol) in 5 mL
anhydrous DCM was added Dess-Martin periodinane (225.22 mg, 531.00
umol). After 2 h, water (9.57 mg, 531.00 umol, 9.57 uL) in 10 mL
DCM was added dropwise. After 1 h, quenched by addition of 1:1 sat
Sodium thiosulfate: sat NaHCO.sub.3. Stirred for 1 h. Washed with
1:1 sat sodium thiosulfate: sat NaHCO.sub.3, sat NaHCO.sub.3,
brine. The organic phase was dried over MgSO.sub.4, filtered, and
concentrated. Purification using 10-50% ethyl acetate in heptanes
on 12 g silica gel column afforded 75 mg of 161-C.
[2314] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 1.14 (t,
J=7.02 Hz, 4H) 1.43 (s, 3H) 1.60 (ddd, J=14.65, 6.71, 2.44 Hz, 1H)
1.74 (ddd, J=14.35, 12.21, 6.41 Hz, 1H) 2.10 (d, J=5.49 Hz, 1H)
2.26-2.47 (m, 3H) 2.60 (ddd, J=14.19, 7.17, 1.83 Hz, 1H) 3.14 (ddd,
J=12.21, 7.33, 1.83 Hz, 1H) 3.30 (td, J=11.60, 6.71 Hz, 1H) 3.41
(dq, J=14.04, 6.84 Hz, 1H) 3.51 (dq, J=13.43, 7.33 Hz, 1H)
7.24-7.28 (m, 1H) 7.30-7.41 (m, 2H) 7.43-7.54 (m, 2H)
Preparation of Compound 161-D
[2315] Compound 161-C (75.00 mg, 252.19 umol) was dissolved in
ethyl formate (1.87 g, 25.22 mmol, 2.03 mL) and treated with sodium
methoxide (4.3 M, 234.60 uL). The reaction was allowed to stir
overnight at RT. The reaction was quenched by addition of 1N HCl to
pH of 3. The reaction was extracted with ethyl acetate. The organic
phases were combined and washed with brine, dried over MgSO.sub.4,
filtered, and concentrated to afford 161-D (80 mg). The material
was carried on crude to next step.
[2316] LCMS (M+H)=326.1
Preparation of Compound 161-E
[2317] Compound 161-D (80 mg, 0.245 mmol) in 4 mL ethanol/1 mL
water was treated with hydroxylamine hydrochloride (42.71 mg,
614.63 umol) overnight. The reaction was concentrated to dryness
and partioned between ethyl acetate and sodium bicarbonate
solution. The layers were separated and the organic phase was
washed with Sat NaHCO.sub.3 solution and brine, dried over
MgSO.sub.4, filtered, and concentrated to afford a white solid,
161-E, 75 mg.
[2318] LCMS (M+H)=323.1
Preparation of Compound 161-F
[2319] Compound 161-E in 2 mL of anhydrous methanol was treated
with sodium methoxide (4.3 M, 216.40 uL) and allowed to stir at RT
for 24 h. The reaction was quenched by addition of .about.1.1 1N
HCl to a pH of 3 and concentrated to remove methanol. The reaction
was partioned between ethyl acetate and brine, dried over MgSO4,
filtered, and concentrated to afford 161-F.
[2320] LCMS (M+H)=323.1
Preparation of Compounds 161-Ent1 and 161-Ent2
[2321] Compound 161-F (80.00 mg, 248.14 umol) was taken up in 5 mL
of benzene and treated with DDQ (61.96 mg, 272.95 umol). The
reaction was heated to reflux for 4 h, then cooled to RT and
concentrated. The reaction was deposited on silica gel and
chromatographed twice using 20-60% ethyl acetate in heptanes. The
first column was on 12 g silica gel, the second column used a 4 g
silica gel cartridge. Isolated 20 mg of a white solid (racemic),
submitted to chiral SFC.
[2322] The method used for the chiral separation was; Column:
CHIRALPAK IA 30.times.250 mm, 5 um; Method: 30% Methanol w/ 0.1%
diethyl amine in CO2 (flow rate: 100 mL/min), ABPR 120 bar, MBPR 40
psi to yield the first eluting enantiomer 161-Ent1 (8.40 mg, 26.22
umol, 10.57% yield) and the second eluting enantiomer 161-Ent2
(7.90 mg, 24.66 umol, 9.94% yield).
Data for 161-Ent1
[2323] LCMS (M+H)=321.1
[2324] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.98 (d,
J=5.49 Hz, 1H) 1.24 (t, J=7.33 Hz, 3H) 1.48-1.52 (m, 3H) 1.53-1.66
(m, 3H) 2.46 (ddd, J=14.96, 10.99, 7.63 Hz, 1H) 3.18-3.35 (m, 1H)
3.35-3.50 (m, 2H) 3.60-3.80 (m, 1H) 7.16-7.26 (m, 2H) 7.32-7.49 (m,
3H) 7.63 (s, 1H)
[2325] SFC: RT 1.67 min; ee=100%
Data for 161-Ent2
[2326] LCMS (M+H)=321.1
[2327] .sup.1H NMR (500 MHz, CHLOROFORM-d) .delta. ppm 0.98 (d,
J=5.49 Hz, 1H) 1.24 (t, J=7.33 Hz, 3H) 1.48-1.52 (m, 3H) 1.53-1.66
(m, 3H) 2.46 (ddd, J=14.96, 10.99, 7.63 Hz, 1H) 3.18-3.35 (m, 1H)
3.35-3.50 (m, 2H) 3.60-3.80 (m, 1H) 7.16-7.26 (m, 2H) 7.32-7.49 (m,
3H) 7.63 (s, 1H)
[2328] SFC: RT 2.35 min; ee=100%
[2329] Example 146 is intentionally deleted.
Example 147: Synthesis of Compounds 163-Ent1 and 163-Ent2
##STR00182##
[2330] Procedure for Preparation of Compound 163-A
[2331] Sodium periodate (9.73 g, 45.49 mmol) was added to a
solution of ruthenium(IV) oxide hydrate (654 mg, 4.33 mmol) in
water (82 mL) and a yellow solution formed. A solution of racemic
39-B (6.94 g, 21.66 mmol) in ethyl acetate (135 mL) was then slowly
added and the mixture was vigorously stirred at room temperature
for 2 hours. The solution was filtered then the organic layer was
then separated and the aqueous layer was extracted twice with
EtOAc. The combined organic layers were the dried over sodium
sulfate, filtered, and concentrated. The black residue was then
purified by column chromatography (5-35% EtOAc/Heptane) to provide
483 mg (6.67% yield) of 163-A a white solid.
[2332] .sup.1H NMR (400 MHz, CHLOROFORM-d) .delta. ppm 8.08 (s,
1H), 3.76 (d, J=12.5 Hz, 1H), 3.24 (d, J=12.6 Hz, 1H), 2.66 (d,
J=9.3 Hz, 2H), 2.43 (d, J=15.2 Hz, 1H), 2.34 (d, J=15.2 Hz, 1H),
2.06 (t, J=9.8 Hz, 1H), 1.55 (s, 9H), 1.34 (s, 3H), 1.26 (s, 3H),
1.09 (s, 3H)
Procedure for Preparation of Compound 163-B
[2333] A solution of 163-A (483 mg, 1.44 mmol) in dichloromethane
(4.80 mL) and TFA (221 uL, 2.89 mmol) was stirred at room
temperature for 1.5 hours. At this point LCMS analysis indicated
complete consumption of the starting material and the mixture was
then concentrated. The residue was then diluted with DCM and sat.
aq. NaHCO.sub.3 and after separation of layers, the aqueous layer
was extracted with DCM (2.times.). The combined organic layers were
dried over sodium sulfate, filtered and concentrated. The white
solid (163-B) was used in the next step without further
purification.
[2334] LCMS: (M+H: 235.1)
Procedure for Preparation of Compound 163-C
[2335] To a solution of 163-B (150 mg, 640 umol) in ether (3.20 mL)
under nitrogen was added sodium methoxide (732 uL, 3.20 mmol, 25%
in MeOH) at room temperature. The mixture was stirred at this
temperature for 1.5 hours then diluted with EtOAc then washed with
5% HCl solution (2.times.). The aqueous layers were combined and
extracted with EtOAc (2.times.) and the combined organic layers
were dried over sodium sulfate then filtered and concentrated.
163-C was obtained (104.5 mg) and was used in the next step in the
sequence without further purification.
[2336] .sup.1H NMR (400 MHz, CDCl.sub.3) .delta. ppm 6.57 (br s,
1H), 4.04 (dd, J=14.18, 4.89 Hz, 1H), 3.10 (d, J=11.04 Hz, 1H),
3.01 (dd, J=12.05, 4.52 Hz, 1H), 2.44 (d, J=9.04 Hz, 2H), 2.31 (dd,
J=13.18, 4.89 Hz, 1H), 1.93-1.98 (m, 1H), 1.39 (s, 3H), 1.14-1.18
(m, 6H).
Procedure for Preparation of Compounds 163-Ent1 and 163-Ent2
[2337] Compound 163-C (104.5 mg, 446.0 umol) was dissolved in
toluene (4.46 mL) and DDQ (132 mg, 580 umol) was added. The mixture
was heated to reflux for 60 minutes then cooled to room
temperature. The reaction was filtered and concentrated and the
residue was purified by column chromatography (50-100%
EtOAc/Heptane). The red residue obtained was then diluted with sat.
sodium bicarbonate and extracted with DCM (3.times.). The organic
layers were dried, filtered, and concentrated to provide the
product as an oil (18.5 mg, 17.9% yield). This material was then
purified by chiral SFC (Column: Chiralcel OD-H 21.times.250 mm;
Method: 20% methanol in CO.sub.2 [flow rate: 80 g/min], ABPR 110
bar) to provide 163-Ent1 (6.0 mg, Rt=0.9 min) and 163-Ent2 (6.2 mg,
Rt=1.1 min) as white solids.
Data for 163-Ent1
[2338] HPLC: (Purity: 97.5%)
[2339] LCMS: (M+H: 233.1)
[2340] SFC: (ee: 99.5%)
[2341] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.37 (s, 1H),
5.71 (s, 1H), 3.30 (d, J=12.3 Hz, 1H), 3.13 (dd, J=11.3, 4.5 Hz,
1H), 2.56 (dd, J=18.1, 5.8 Hz, 1H), 2.42-2.51 (m, 1H), 2.30 (dd,
J=13.1, 5.3 Hz, 1H), 1.42 (d, J=0.8 Hz, 3H), 1.24 (s, 3H), 1.14 (s,
3H).
Data for 163-Ent2
[2342] HPLC: (Purity: 97.3%)
[2343] LCMS: (M+H: 233.1)
[2344] SFC: (ee: 96.9%)
[2345] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.37 (s, 1H),
5.72 (s, 1H), 3.30 (d, J=11.0 Hz, 1H), 3.13 (dd, J=11.3, 4.5 Hz,
1H), 2.56 (dd, J=17.8, 5.5 Hz, 1H), 2.42-2.50 (m, 1H), 2.30 (dd,
J=12.8, 5.5 Hz, 1H), 1.42 (s, 3H), 1.24 (s, 3H), 1.14 (s, 3H).
Example 148: Synthesis of Compounds 164-Ent1 and 164-Ent2
##STR00183##
[2346] Procedure for Preparation of Compound 164-A
[2347] Compound 163-B (125 mg, 533 umol) was dissolved in THF (5.34
mL) and DMF (1.25 mL) and cooled to 0.degree. C. then sodium
hydride (44.8 mg, 1.12 mmol, 60% in mineral oil) was added. This
solution was stirred for 30 minutes then methyl iodide (36.5 uL,
586.88 umol) was added and the mixture was warmed to room
temperature overnight. The reaction was then quenched with
saturated aqueous ammonium chloride and diluted with ethyl acetate.
After separation of layers the organic layer was washed with brine
and water then dried over sodium sulfate, filtered, and
concentrated to provide 83 mg of 164-A which was used in the next
step without further purification.
[2348] LCMS: (M+H: 249.1)
Procedure for Preparation of Compounds 164-Ent1 and 164-Ent2
[2349] Compound 164-A (83 mg, 334 umol) was dissolved in toluene
(3.3 mL) and DDQ (99 mg, 434 umol) was added. The mixture was
heated to reflux for 60 minutes then cooled to room temperature.
The reaction was filtered and concentrated and the residue was then
purified by column chromatography (50-100% EtOAc/Heptane, 12 g
column). The red residue obtained was then diluted with sat. sodium
bicarbonate and extracted with DCM (3.times.). The organic layers
were dried, filtered, and concentrated to provide the product as an
oil which was then purified by chiral SFC (Preparative method:
Column: ChromegaChiral CCS 20.times.250 mm, Method: 20%
methanol/isopropanol [1:1] in CO.sub.2 [flow rate: 80 g/min], ABPR
120 bar; Analytical method: Column: Chiralpak AS-H 4.6.times.100
mm, Method: 10% methanol:isopropanol [1:1] in CO.sub.2 [flow rate:
4 mL/min], ABPR 125 bar) to provide 164-Ent1 (6.2 mg, Rt=2.84 min)
and 164-Ent2 (5.8 mg, Rt=2.46 min) as white solids.
Data for 164-Ent1
[2350] HPLC: (Purity: 93%)
[2351] LCMS: (M+H: 247.1)
[2352] SFC: (ee: 99.3%)
[2353] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.36 (s, 1H),
3.34 (d, J=11.5 Hz, 1H), 3.04 (d, J=11.8 Hz, 1H), 3.01 (s, 3H),
2.57 (dd, J=18.1, 5.8 Hz, 1H), 2.42-2.52 (m, 1H), 2.28 (dd, J=13.1,
5.5 Hz, 1H), 1.38 (s, 3H), 1.22 (s, 3H), 1.13 (s, 3H).
Data for 164-Ent2
[2354] HPLC: (Purity: 91%)
[2355] LCMS: (M+H: 247.1)
[2356] SFC: (ee: 97.8%)
[2357] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.36 (s, 1H),
3.35 (d, J=11.0 Hz, 1H), 3.04 (d, J=11.8 Hz, 1H), 3.01 (s, 3H),
2.36-2.60 (m, 2H), 2.29 (dd, J=14.1, 5.8 Hz, 1H), 1.38 (s, 3H),
1.22 (s, 3H), 1.13 (s, 3H).
Example 149: Synthesis of Compounds 165-Ent1 and 165-Ent2
##STR00184##
[2358] Procedure for Preparation of Compound 165-Ent1 and
165-Ent2
[2359] A solution of 163-B (231 mg, 0.691 mmol) in THF (3.45 mL)
was cooled to -78.degree. C. under nitrogen. To this solution was
added methylmagnesium bromide (299 uL, 3.0 M in THF). The mixture
was stirred for two hours then quenched upon addition of HCl (0.97
mL, 1 M in water). The mixture was extracted with ether and the
combined organic layers were then dried over sodium sulfate,
filtered, and concentrated to obtain crude 165-A. This material was
then used in the next step in the sequence without further
purification.
[2360] LCMS: (M-tBu+H: 295.1)
Procedure for Preparation of Compound 165-B
[2361] A solution of 165-A (242 mg, 0.691 mmol) in dichloromethane
(1.73 mL) and TFA (1.73 mL) was stirred at room temperature for 1
hour then the mixture was concentrated. This residue was then
dissolved in DCE (2.16 mL) and acetic acid (39.5 uL, 0.691 mmol)
was added followed by sodium triacetoxyborohydride (205 mg, 0.967
mmol). The mixture was stirred for 1 hour then quenched upon
addition of saturated, aqueous sodium bicarbonate (10 mL). The
solution was extracted with dichloromethane (3.times.20 ml) then
the combined organic layers were dried over sodium sulfate,
filtered, and concentrated to provide 137.6 mg of crude 165-B. This
material was then used in the next step in the sequence without
further purification.
[2362] LCMS: (M+H: 235.2)
Procedure for Preparation of Compound 165-C
[2363] Compound 165-B (137.6 mg, 587 umol) was dissolved in THF
(2.49 mL) and water (0.45 mL) then sodium bicarbonate (148 mg, 1.76
mmol) and acetic anhydride (83 uL, 881 umol) were added. The
mixture was stirred at room temperature for 5 hours. The mixture
was then diluted with EtOAc (20 mL) and water (20 mL). After
separation of layers, the water layer was extracted with ethyl
acetate (2.times.20 mL) and the combined organic layers were dried
over sodium sulfate, filtered, and concentrated. The residue was
then purified by column chromatography (10-100% EtOAc/Heptane) to
provide 69.6 mg (43% yield) of 165-C as a colorless oil.
[2364] LCMS: (M+H: 277.1)
Procedure for Preparation of Compound 165-D
[2365] To a solution of 165-C (69.6 mg, 252 umol) in ether (2.52
mL) under nitrogen was added sodium methoxide (288 uL, 1.26 mmol,
25% in methanol). The mixture was stirred at room temperature for 2
hours then diluted with EtOAc (25 mL) then washed with 5% HCl
solution (2.times.15 mL). The aqueous layers were combined and
extracted with EtOAc (2.times.25 mL) and the combined organic
layers were dried over sodium sulfate then filtered and
concentrated to provide crude 165-D. This material was used in the
next step in the sequence without further purification.
[2366] LCMS: (M+H: 277.2)
Procedure for Preparation of Compounds 165-Ent1 and 165-Ent2
[2367] Compound 165-D (69.6 mg, 252 umol) was dissolved in toluene
(2.52 mL) and DDQ (74 mg, 327 umol) was added. The mixture was
heated to reflux for 60 minutes then cooled to room temperature.
The reaction was filtered and concentrated and the residue was then
purified by column chromatography (50-100% EtOAc/Heptane). The red
residue obtained was then diluted with saturated sodium bicarbonate
(20 mL) and extracted with DCM (3.times.25 mL). The organic layers
were dried over sodium sulfate, filtered, and concentrated to
provide the product as a red oil (37 mg, 53%, 92% purity by HPLC).
This material was then purified by chiral SFC (Column: Chiralcel
AD-H 21.times.250 mm; Method: 20% methanol in CO.sub.2 [flow rate:
80 g/min], ABPR 110 bar) to provide 165-Ent1 (12.1 mg, 1.82 min)
and 165-Ent2 (10.4 mg, Rt=2.32 min) as off-white solids.
Data for 165-Ent1
[2368] HPLC: (Purity: 92%)
[2369] LCMS: (M+H: 275.1)
[2370] SFC: (ee: 82.32%)
[2371] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.72 (s, 1H),
3.81-3.96 (m, 2H), 3.13 (d, J=14.3 Hz, 1H), 2.11-2.15 (m, 3H),
1.79-1.91 (m, 2H), 1.36-1.47 (m, 4H), 1.25 (s, 3H), 1.22 (s, 3H),
1.16 (s, 3H).
Data for AGC-9012-Ent-2 (BIO-1472595-01)
[2372] HPLC: (Purity: 95%)
[2373] LCMS: (M+H: 275.2)
[2374] SFC: (ee: 94.70%)
[2375] .sup.1HNMR (400 MHz, CDCl.sub.3) .delta. ppm 7.72 (s, 1H),
3.82-3.97 (m, 2H), 3.13 (d, J=13.6 Hz, 1H), 2.12-2.15 (m, 3H),
1.80-1.91 (m, 2H), 1.38-1.47 (m, 4H), 1.25 (s, 3H), 1.22 (s, 3H),
1.16 (s, 3H).
Example 150. Cellular Assay
[2376] The assay was performed by DiscoverX Corporation, 42501
Albrae Street, Suite 100, Fremont, Calif. 94538. The
PathHunter.RTM. Nuclear Translocation assay detects translocation
of a target protein to, or from, the nucleus. In this system,
ProLink.TM. (PK), a small enzyme fragment, is fused to the protein
of interest and EA is localized in the nucleus. Activation of the
signaling pathway induces the target protein to either transit into
the nucleus, thus forcing complementation of the PK and EA
fragments, or out of the nucleus, hindering complementation of the
fragments.
[2377] EC.sub.50 determinations were performed in duplicate at 10
concentrations with 3-fold serial dilutions at a 30 .mu.M top
concentration or an otherwise specified top concentration.
[2378] Cell handling . PathHunter Pathway cell lines were expanded
from freezer stocks according to standard procedures. 5000 cells
were seeded in Cell Plating Reagent 0 (containing 1% FBS) to a
total volume of 20 uL into white walled, 384-well microplates and
incubated for the overnight prior to testing.
[2379] Agonist format: For Agonist determination, cells were
incubated with sample to induce response. Sample stocks were
serially diluted in DMSO to generate 100.times. sample.
Intermediate dilution of sample stocks was performed to generate
5.times. sample in assay buffer (Cell Plating Reagent 0 containing
1% FBS). 5 .mu.L of 5.times. sample was added to cells and
incubated at room temperature for 6 hours. Vehicle concentration
was 1%.
[2380] Signal detection: Assay signal was generated through a
single addition of 25 .mu.L (100% v/v) of PathHunter Flash
Detection reagent, followed by a one hour incubation at room
temperature. Microplates were read following signal generation with
a PerkinElmer Envision.TM. instrument for chemiluminescent signal
detection.
[2381] Data analysis: Compound activity was analyzed using CBIS
data analysis suite (Chemlnnovation, CA). For agonist mode assays,
percentage activity was calculated using the following formula: %
Activity=100%.times.(mean RLU of test sample-mean RLU of vehicle
control)/(mean MAX RLU control ligand-mean RLU of vehicle control).
For EC50 determination, data was normalized to the maximal and
minimal response observed in the presence of the control ligand and
vehicle respectively. CDDO methyl ester was used as a control
compound.
[2382] The compounds described herein were tested for in the above
nuclear translocation assay. The results are provided below,
wherein the compound number corresponds to the numbers set forth in
the examples above, a "+" represents an EC.sub.50 of greater than
10 .mu.M, a "++" represents an EC.sub.50 of less than or equal to
10 .mu.M, a "+++" represents an EC.sub.50 of less than or equal to
1 .mu.M, a "++++" represents an EC.sub.50 of less than or equal to
0.1 .mu.M, and a "+++++" represents an EC.sub.50 of less than or
equal to 0.01 .mu.M.
TABLE-US-00002 EC.sub.50 (NRF2 COMPOUNDS TRANSLOCATION) 122-Ent2
and 156 xxxxx (<0.01 .mu.M) 28-Ent1, 46-Ent2, 69-Ent2, 70-Ent2,
71-Ent2, xxxx (<0.1 .mu.M) 72-Ent1, 73-Ent1, 77-Ent2, 78-Ent2,
79, 84-Ent2, 85-Ent2, 87-Ent2, 89-Ent2, 90-Ent2, 91-Ent2, 92-Ent2,
93-Ent2, 94-Ent2, 97-Ent1, 100-Ent2, 101-Ent2, 103-Ent2, 107-Ent2,
108-Ent2, 109-Ent2, 110-Ent2, 111-Ent2, 113-Ent2, 121-Ent2,
123-Ent2, 124-Ent1, 124-Ent2, 125-Ent2, 126-Ent1, 127-Ent2,
128-Ent2, 129-Ent2, 130-Ent2, 133-Ent2, 134-Ent1, 138-Ent1,
152-Ent2, 153-Ent2, 159-Ent1, and 159-Ent2 12-Ent1, 14-Ent1,
15-Ent1, 16-Ent1, 16-Ent2, xxx (<1 .mu.M) 17-Ent1, 18-Ent1,
19-Ent1, 20-Ent2, 21-Ent1, 23-Ent1, 25-Ent1, 26-Ent1, 27-Ent1,
30-Ent1, 30-Ent2, 31-Ent1, 31-Ent2, 32-Ent1, 33-Ent1, 34-Ent1,
34-Ent2, 35-Ent1, 36-Ent1, 38-Ent1, 38-Ent2, 39-Ent2, 47-Ent1,
49-Ent1, 53-Ent1, 56-Ent1, 57-Ent1, 57-Ent2, 58-Ent1, 58-Ent2, 59,
60-Ent1, 62, 63, 64, 66, 67, 70-Ent1, 71-Ent1, 74-Ent1, 75-Ent1,
76-Ent1, 78-Ent1, 80, 83-Ent1, 86-Ent2, 88-Ent2, 92-Ent1, 93-Ent1,
95-Ent2, 96-Ent2, 97-Ent2, 98-Ent2, 104-Ent2, 105-Ent2, 106-Ent2,
108-Ent1, 111-Ent1, 112-Ent2, 114-Ent1, 114-Ent2, 116-Ent1,
116-Ent2, 120-Ent2, 122-Ent1, 125-Ent1, 126-Ent2, 127-Ent1,
128-Ent1, 129-Ent1, 131-Ent1, 134-Ent2, 136-Ent2, 137-Ent2, 149,
150-Ent2, 151-Ent2, 154-Ent2, 164-Ent1, 166, 167 and 168-Ent1
12-Ent2, 12-Jent2, 13-Ent1, 13-Ent2, 14-Ent2, xx (<10 .mu.M)
15-Ent2, 17-Ent2, 18-Ent2, 19-Ent2, 20-Ent1, 21-Ent2, 22-Ent2,
22-Ent1, 23-Ent2, 24-Ent1, 25-Ent2, 26-Ent2, 27-Ent2, 28-Ent2,
29-Ent1, 29-Ent2, 32-Ent2, 33-Ent2, 35-Ent2, 36-Ent2, 39-Ent1,
46-Ent1, 48-Ent1, 48-Ent2, 51-Ent1, 52-Ent1, 53-Ent2 54, 55,
56-Ent2, 60-Ent2, 61-Ent1, 61-Ent2, 65-Ent1, 65-Ent2, 69-Ent1,
77-Ent1, 81-Ent1, 82-Ent1, 84-Ent1, 87-Ent1, 88-Ent1, 89-Ent1,
90-Ent1, 91-Ent1, 94-Ent1, 95-Ent1, 98-Ent1, 99-Ent2, 103-Ent1,
104-Ent1, 105-Ent1, 106-Ent1, 107-Ent1, 112-Ent1, 117-Ent1,
121-Ent1, 161-Ent2, 163-Ent1, 163-Ent2, 164-Ent2, and 165-Ent2
12-J-Ent1, 24-Ent1, 50-Ent1, 85-Ent1, x (>10 .mu.M) 86-Ent1,
96-Ent1, 120-Ent1, 123-Ent1, 155-Ent1, 155-Ent2, 161-Ent1 and
165-Ent1
Example 151. Testing Nrf2 Activator Compounds in Cultured Human
Astrocytes
Cells
[2383] Human astrocytes from ScienCell (cat #1820) were grown in
astrocyte medium per supplier's instructions. Cells cultured for no
more than two passages were plated in poly-D-lysine coated 96-well
plates at 40,000 cells per well for gene transcription experiments
and 20,000 cell per well for glutathione and cytoprotection
assays.
Gene Expression
[2384] Primary cultures of human spinal cord astrocytes were
treated with test compounds for 20 hours. The cells were then
rinsed in PBS, lysed, and processed for RNA using Ambion Tagman.TM.
Cells-to-CT kit. The resulting cDNA was stored at -20.degree. C.
until analysis by real-time polymerase chain reaction (RT-PCR). The
cDNA mixture from Cells-to-CT was diluted 5.times. before loading
into PCR. This yields results similar to using 6 ng of purified
cDNA. RT-PCR was performed on Life Technologies QuantStudio
platform using OpenArray technique according to manufacturer's
protocol using the following Taqman primers:
TABLE-US-00003 Target Taqman assay GCLC Hs00155249_m1
glutamate-cysteine ligase, catalytic subunit GCLM Hs00157694_m1
glutamate-cysteine ligase, modifier subunit OSGIN1 Hs00203539_m1
oxidative stress induced growth inhibitor 1 TBP Hs00427620_m1 TATA
box binding protein [Homo sapiens (human)] PRDX1 Hs00602020_mH
peroxiredoxin 6 SRXN1 Hs00607800_m1 sulfiredoxin 1 TXNRD1
Hs00917067_m1 thioredoxin reductase 1 ACTB Hs01060665_g1 actin,
beta [Homo sapiens(human)] HMOX1 Hs01110250_m1 heme oxygenase 1
[Homo sapiens(human)] UBC Hs01871556_s1 ubiquitin C [Homo sapiens
(human)] NQO1 Hs02512143_s1 NAD(P)H dehydrogenase, quinone 1 GAPDH
Hs02758991_g1 glyceraldehyde-3-phosphate dehydrogenase [Homo
sapiens (human)]
[2385] The comparative CT method was used to calculate fold changes
using ThermoFisher Cloud software for PCR analysis. Samples were
compared to 0.03% DMSO vehicle control.
[2386] As shown in FIGS. 1A to 1D, Compound 12-Ent1 induces
transcription of Nrf2 target genes, including GCLC, HMOX1, OSGIN1
and NQO1.
Glutathione Assay
[2387] Intracellular glutathione was measured after a 20-hr
exposure to test compounds by a two-step process. First, cells were
lysed and luciferin quantitatively generated from substrate,
catalyzed by glutathione-S-transferase in the presence of analyte
glutathione. Then luciferin was assayed using stabilized luciferase
to produce a luminescent signal proportional to the concentration
of glutathione (Promega GSH-Glo, cat #V6912).
[2388] As shown in FIG. 2, Compound 12-Ent1 increases intracellular
glutathione.
Cytoprotection
[2389] Astrocytes were treated for 20 hrs with test compounds, then
the medium was removed and replaced with serum- and supplement-free
growth medium with and without 25 .mu.M sodium arsenite. After 22
hrs., cells were washed with PBS, fixed with 4% paraformaldehyde/4%
sucrose in PBS, stained with 4',6-Diamidino-2-phenylindole
dihydrochloride (DAPI) and counted by quantitative fluorescence
microscopy.
[2390] As shown in FIG. 3, Compound 12-Ent1 protects cells from
oxidative stress-induced cell death caused by 25 .mu.M sodium
arsenite.
Example 152. Method for Testing Nrf2 Activator Compounds in
Mice
Animals
[2391] All procedures involving animals were performed in
accordance with standards established in the Guide for the Care and
Use of Laboratory Animals as adopted by the U.S. National
Institutes of Health. All animal protocols were approved by the
Biogen Institutional Animal Care and Use Committee, which is
accredited by the Association for Assessment and Accreditation of
Laboratory Animal Care International. Female 6-10 week-old wild
type C57BL/6 and Nrf2-/- mice (Itoh et al, 1997; maintained at
Jackson Labs, Bar Harbor, Me.) were maintained on a 12-hour
light/dark cycle and given access to food and water ad libitum.
[2392] Compound 12-Ent1 (25 mg/kg) was administered as a single,
oral dose in a vehicle of Solutol HS-15/polyethylene
glycol/ethanol/water (10/10/10/70) to C57BL/6 (wt) and Nrf2-/-
mice. Brain, jejunum, kidney and spleen were collected at 2 or 6
hours after dosing and snap frozen for RNA analysis of Nrf2 target
genes.
Tissue RNA Extraction
[2393] For RNA preparation, frozen tissues were placed in 2 mL
RNAse-free 96-well blocks with 1.5 ml QIAzol Lysis Reagent (QIAgen)
and a 3.2 mm stainless steel bead (BioSpec Products, Bartlesville,
Okla.). Tissues were disrupted for four cycles of 45 seconds in a
Mini-Beadbeater (Biospec Products). RNA was extracted in chloroform
and the aqueous phase was mixed with an equal volume of 70%
ethanol. Extracted RNA was applied to RNeasy 96 plates and purified
by the spin method according to the manufacturer's protocol (RNeasy
96 Universal Tissue Protocol, QIAgen, Hilden Germany).
Quantitative Real-Time PCR (qRT-PCR)
[2394] qRT-PCR was performed from total mRNA isolated from tissues
and reverse-transcribed into cDNA according to manufacturer
protocols (Life Technologies, Carlsbad, Calif.). 20.times. Taqman
target gene mouse primer/probe sets (see table below) were mixed
with cDNA and 2.times. Taqman Universal Master Mix to a final
volume of 20 uL. All final reactions contained 100 ng of cDNA, 900
nM of each primer, and 250 nM TaqMan.RTM. probes and were cycled on
a QuantStudio.TM. 12K Flex system (Life Technologies). All samples
were measured in triplicate using beta actin as a normalizing gene.
Final analysis was performed using the comparative CT method to
calculate fold changes and samples were normalized relative to wild
type vehicle control at each time point.
TABLE-US-00004 Taqman Primer/Probe Assays (Life Technologies) Gene
Taqman Assay ID HMOX1 Mm00516005_m1 OSGIN1 Mm00660947_m1 NQO1
Mm01253561_m1 AKR1B8 Mm00484314_m1 ACTB Mm02619580_g1
[2395] As shown in FIGS. 4A to 4D, Compound 12-Ent1 increases the
expression of Akr1b8, Nqo1, Hmox1 and Osgin1 in kidney at 2 hours
and 6 hours after dosing and the increases are Nrf2-dependent. As
shown in FIGS. 5A to 5D, Compound 12-Ent1 increases the expression
of Akr1b8, Nqo1, Hmox1 and Osgin1 in Jejunum at 2 hours and 6 hours
after dosing and the increases are Nrf2-dependent. As shown in
FIGS. 6A to 6D, Compound 12-Ent1 increases the expression of Nqo1,
Hmox1 and Osgin1 in spleen at 2 hours and 6 hours after dosing and
the increases are Nrf2-dependent. As shown in FIGS. 7A to 7D,
Compound 12-Ent1 increases the expression of Nqo1, Hmox1 and Osgin1
in brain at 2 hours and 6 hours after dosing and the increases are
Nrf2-dependent.
REFERENCES
[2396] Itoh K, Chiba T, Takahashi S, Ishii T, Igarashi K, Katoh Y,
Oyake T, Hayashi N, Satoh K, Hatayama I, Yamamoto M, Nabeshima Y.
Biochem Biophys Res Commun. 1997 Jul. 18; 236(2):313-22.
Example 153. Method for Testing Nrf2 Activator Compounds in
Cultured HUDEPS
Cells
[2397] Human Umbilical Derived Erythroid Cells (HUDEP; from Riken
Institute, Japan) were cultured in Stemspan SFEM medium (Stemcell
Technologies, Vancouver, Canada) supplemented with erythroid
cytokines and growth factors. Compound incubations were performed
in HUDEP cells cultured in differentiation media.
Gene Expression
[2398] Differentiating HUDEP cells were cultured with increasing
concentrations of 12-Ent1 or equivalent DMSO concentrations for 72
hours and the levels of HbF protein was measured using a
commercially available ELISA specific for human HbF (Bethyl
Laboratories, TX) based on manufacturer's protocol.
[2399] As shown in FIG. 8, Compound 12-Ent1 induces HbF protein in
cultured HUDEP cells compared to HUDEP cells incubated with
DMSO.
Example 154. Method for Testing .gamma.-Globin Gene Induction in
Townes Mice Using Nrf2 Activator Compounds
Animals
[2400] All animal experiments conformed to the guidance issued by
the Biogen Institutional Animal Care and Use Committee and are
described in approved protocols. The SCD mouse strain used in the
in vivo studies is the Townes SCD mouse [Wu L C, Sun C W, Ryan T M,
Pawlik K M, Ren J, Townes T M. Correction of sickle cell disease by
homologous recombination in embryonic stem cells. Blood. 2006,
108(4):1183-8]. These mice are genetically modified with deletions
of the endogenous murine hemoglobin genes and knock in of the human
alpha, beta and gamma globin genes, of which the beta globin genes
possess the sickle mutation. Of note, these mice have only the
A.gamma. globin gene and do not carry the G.gamma. gene. These mice
harboring the sickle cell mutations in the hemoglobin
.beta.-globins chain show the presence of sickle cell disease
characterized by abnormally low hemoglobin, circulating sickle
shaped erythrocytes, varying degrees of damage of internal organs
such as spleen, liver, and kidney. Male and female Townes SS mice
aged 8 to 12 weeks were used for studies described here.
[2401] Acute SCD study: Four SCD studies were performed with
compound 12-Ent1. There were three studies in which a single dose
of 10, 25, and 50 mg/kg of the compound was administered to the
mice. In the fourth study, two doses of 25 mg/kg were administered
12 hours apart. For each study, 12 mice from the same age group
were sorted randomly based on gender, weight, and date of birth
into 3 groups of 4 each--time 3 hours, time 6 hours, and time 24
hours. One group of 4 mice was used as control which were
administered with vehicle only equivalent. The compound was
administered in SPEW (Solutol HS-15/polyethylene
glycol/ethanol/water (10/10/10/70)) by oral gavage. At each
corresponding time point after dosing, the group of mice was
euthanized via asphyxiation in a CO2 chamber. Upon euthanasia, the
mice were exsanguinated and blood was collected from the vena cava
and immediately placed into EDTA tubes at room temperature. Whole
blood was centrifuged at 5000 rpm for 10 mins for plasma isolation
for PK analysis. After exsanguination, the spleen was harvested and
snap frozen on dry ice for RNA extraction and analysis.
Spleen RNA Extraction, Conversion to cDNA, and Real Time PCR
[2402] Frozen spleens were placed at room temperature. Before
complete thawing, RLT Plus buffer (Qiagen, Hilden, Germany)
containing .beta.-mercaptoethanol and reagent DX (Qiagen) was added
to the spleen samples for tissue lysis. Spleen samples were then
homogenized using a gentleMACS tissue disruptor (Miltenyi Biotec,
Germany). An aliquot of 50 .mu.l of the homogenate was then lysed
further using a Tissuelyser LT instrument (Qiagen). RNA was
extracted from the lysates using the RNeasy Plus Kit (Qiagen).
Extracted RNA was then quantitated using a Nanodrop and 1 .mu.g of
total RNA was converted to cDNA using VILO Mastermix kit according
to manufacturer's protocol.
[2403] cDNA prepared from RNA isolated from tissue samples was used
to determine gene expression levels of using Taqman based real time
PCR (Life Technologies, ThermoFisher Scientific). Primer-probe
pairs for each gene of interest were purchased from Life
Technologies. The reaction mix was prepared using 50 ng of cDNA,
2.times. Taqman reagent and primer-probe pairs and the reaction
carried out based on manufacturer's recommendation in the ABI 7900
Fast Block real-time PCR machine (Applied Biosystems, Foster City,
Calif.). Results were analyzed using the 7500 software version
2.0.5 and the relative levels of transcripts were measured with
GAPDH as the endogenous housekeeping gene control using the
2.sup.-.DELTA..DELTA.Ct relative quantification method.
Results
[2404] As shown in FIGS. 9A-9D and 11, Compound 12-Ent1 induces
human .gamma.-globin gene in spleen, at least at the 24 hour time
point. As shown in FIGS. 10A-10C and 12, Compound 12-Ent1 also
induces NQO-1 gene in spleen, at least at the 6 hour time
point.
[2405] Other embodiments are within the scope of the following
claims.
* * * * *