U.S. patent application number 11/295890 was filed with the patent office on 2007-03-01 for novel compounds and compositions as cathepsin inhibitors.
This patent application is currently assigned to Aventis Pharmaceuticals Inc.. Invention is credited to David J. Aldous, Michael Graupe, Frank Halley, Justine Lai, Jiayao Li, John O. Link, John W. Patterson, Stephen D. Pickett, Sukanthini Thurairatnam, Andreas P. Timm.
Application Number | 20070049594 11/295890 |
Document ID | / |
Family ID | 22976963 |
Filed Date | 2007-03-01 |
United States Patent
Application |
20070049594 |
Kind Code |
A1 |
Graupe; Michael ; et
al. |
March 1, 2007 |
Novel compounds and compositions as cathepsin inhibitors
Abstract
The present invention relates to novel selective cathepsin S
inhibitors, the pharmaceutically acceptable salts and N-oxides
thereof, their uses as therapeutic agents and the methods of their
making.
Inventors: |
Graupe; Michael; (Pacifica,
CA) ; Patterson; John W.; (Mountain View, CA)
; Aldous; David J.; (Gillette, NJ) ; Thurairatnam;
Sukanthini; (Bedminster, NJ) ; Timm; Andreas P.;
(Bridgewater, NJ) ; Link; John O.; (San Francisco,
CA) ; Li; Jiayao; (Foster City, CA) ; Pickett;
Stephen D.; (Hitchin, GB) ; Halley; Frank;
(Chaville, FR) ; Lai; Justine; (Epping,
GB) |
Correspondence
Address: |
ROSS J. OEHLER;AVENTIS PHARMACEUTICALS INC.
1041 ROUTE 202-206
MAIL CODE: D303A
BRIDGEWATER
NJ
08807
US
|
Assignee: |
Aventis Pharmaceuticals
Inc.
Bridgewater
NJ
Axys Pharmaceuticals, Inc.
South San Francisco
CA
|
Family ID: |
22976963 |
Appl. No.: |
11/295890 |
Filed: |
December 7, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10035783 |
Dec 24, 2001 |
|
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11295890 |
Dec 7, 2005 |
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60257603 |
Dec 22, 2000 |
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Current U.S.
Class: |
514/247 ;
514/252.05; 514/252.1; 514/255.05; 514/256; 514/364; 514/375;
544/224; 544/238; 544/405; 548/134; 548/143; 548/217 |
Current CPC
Class: |
A61P 11/06 20180101;
A61P 37/02 20180101; C07C 323/60 20130101; A61P 21/04 20180101;
C07D 205/08 20130101; Y02A 50/411 20180101; A61P 3/10 20180101;
C07D 271/10 20130101; C07D 277/26 20130101; C07D 413/12 20130101;
C07D 295/185 20130101; A61P 19/02 20180101; C07D 413/04 20130101;
A61P 11/00 20180101; A61P 13/12 20180101; A61P 25/28 20180101; A61K
31/5377 20130101; A61P 17/00 20180101; C07C 317/44 20130101; C07D
285/08 20130101; C07D 207/273 20130101; C07D 271/06 20130101; C07D
207/24 20130101; C07D 223/10 20130101; A61P 37/08 20180101; C07D
277/64 20130101; A61P 9/10 20180101; A61P 33/06 20180101; A61P 1/02
20180101; C07D 223/12 20130101; C07D 263/32 20130101; C07D 263/56
20130101; A61P 35/00 20180101; A61K 31/5375 20130101; C07D 213/40
20130101; A61P 43/00 20180101; A61P 21/00 20180101; A61P 25/00
20180101; Y02A 50/30 20180101; A61P 29/00 20180101 |
Class at
Publication: |
514/247 ;
514/252.1; 514/252.05; 514/255.05; 514/256; 514/364; 514/375;
544/224; 544/238; 544/405; 548/217; 548/134; 548/143 |
International
Class: |
A61K 31/501 20060101
A61K031/501; A61K 31/50 20060101 A61K031/50; A61K 31/4965 20060101
A61K031/4965; A61K 31/497 20060101 A61K031/497; C07D 417/02
20060101 C07D417/02; C07D 413/02 20060101 C07D413/02 |
Claims
1. A compound of Formula I: ##STR621## in which: X.sup.1 is
--C(R.sup.1)(R.sup.2)X.sup.2 or --X.sup.3; X.sup.2 is cyano, --CHO,
--C(R.sup.7)(R.sup.8)R.sup.5, --C(R.sup.7)(R.sup.8)CF.sub.3,
--C(R.sup.7)(R.sup.8)CF.sub.2CF.sub.2R.sup.9--CH.dbd.CHS(O).sub.2R.sup.5,
--C(R.sup.7)(R.sup.8)CF.sub.2C(O)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2N(R.sup.6)SO.sub.2R.sup.5,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2OR.sup.-
6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2NR.su-
p.6 or --C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)R.sup.5; wherein
R.sup.5 is (C.sub.1-4)alkyl, (C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.4-10)aryl(C.sub.0-6)alkyl,
(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl or
hetero(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl; R.sup.6 is hydrogen
or (C.sub.1-6)alkyl; R.sup.7 is hydrogen or (C.sub.1-4)alkyl and
R.sup.8 is hydroxy or R.sup.7 and R.sup.8 together form oxo;
R.sup.9 is hydrogen, halo, (C.sub.1-4)alkyl,
(C.sub.5-10)aryl(C.sub.0-6)alkyl or
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl; X.sup.3 represents a group
of Formula (a): ##STR622## in which n is 1 or 2, z is 0 or 1,
X.sup.5 is selected from NR.sup.10, S or O, wherein R.sup.10 is
hydrogen or (C.sub.1-6)alkyl, and X.sup.6 is O, S or NR.sup.11,
wherein R.sup.11 is selected from hydrogen, (C.sub.1-6)alkyl,
--X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12, --X.sup.4S(O).sub.2R.sup.14,
--R.sup.15, --X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15 and
--X.sup.4S(O).sub.2NR.sup.12R.sup.15, in which X.sup.4 is a bond or
(C.sub.1-6)alkylene; R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl; R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; wherein within
X.sup.1 any cycloalkyl, heterocycloalkyl, aryl or heteroaryl may be
substituted with 1 radical R.sup.20 selected from --R.sup.15,
--X.sup.4OR.sup.15, --X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12; and wherein
X.sup.1 and R.sup.20 may be substituted further with 1 to 5
radicals independently selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14 wherein X.sup.4, R.sup.12, R.sup.13,
R.sup.14 and R.sup.15 are as defined above; R.sup.1 and R.sup.2 are
both fluoro; or R.sup.1 is hydrogen or (C.sub.1-6)alkyl and R.sup.2
is selected from the group consisting of hydrogen,
(C.sub.1-6)alkyl, cyano, --X.sup.4NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(O)R.sup.12, --X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12, --X.sup.4OR.sup.13,
--X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4OC(O)R.sup.13, --X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--X.sup.4S(O).sub.2R.sup.14, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above; or
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form (C.sub.3-8)cycloalkylene
or hetero(C.sub.3-8)cycloalkylene; wherein R.sup.2, said
cycloalkylene and said heterocycloalkylene may be substituted
further with 1 to 3 radicals independently selected from
(C.sub.1-6)alkyl, cyano, halo, halo-substituted(C.sub.1-4)alkyl,
nitro, --X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4 SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; R.sup.3 and R.sup.4 are
independently --C(R.sup.16)(R.sup.17)X.sup.7, wherein R.sup.16 and
R.sup.17 are hydrogen, (C.sub.1-6)alkyl or fluoro, or R.sup.16 is
hydrogen and R.sup.17 is hydroxy and X.sup.7 is selected from
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--X.sup.4S(O).sub.2R.sup.14, --R.sup.15, X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.2S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above;
wherein within one of R.sup.3 or R.sup.4 any cycloalkyl,
heterocycloalkyl, aryl or heteroaryl may be substituted with 1
radical R.sup.21 selected from --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12 and R.sup.15 are as defined above; and wherein each of
R.sup.3, R.sup.4 and R.sup.21 may be substituted further with 1 to
5 radicals independently selected from (C.sub.1-6)alkyl, cyano,
halo, halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; provided that only one bicyclic
ring structure is present within each of R.sup.3 or R.sup.4; and
provided that when X.sup.2 is cyano and X.sup.7 within one of
R.sup.3 or R.sup.4 is --X.sup.4C(O)R.sup.13 or
--X.sup.4C(O)R.sup.15, wherein X.sup.4 is a bond, then X.sup.7
within the other of R.sup.3 or R.sup.4 is limited to
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15 and
--X.sup.4S(O).sub.2R.sup.15, wherein R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl substituted with 1 to 5 radicals
or hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl optionally substituted
with 1 to 5 radicals, wherein said radicals are independently
selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above, provided that the radical is not
selected from only halo when R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl; and provided that when X.sup.2 is
cyano then X.sup.7 within R.sup.3 and R.sup.4 is not
--X.sup.4C(O)NR.sup.12R.sup.12, --X.sup.4C(O)NR.sup.15R.sup.12 or
--X.sup.4C(O)NR.sup.18R.sup.19, wherein X.sup.4 is a bond and
R.sup.18 and R.sup.19 together with the nitrogen atom to which they
are attached form hetero(C.sub.3-10)cycloalkyl or
hetero(C.sub.5-10)aryl; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
2. The compound of claim 1 in which: X.sup.1 is
--C(R.sup.1)(R.sup.2)X.sup.2 or --X.sup.3; X.sup.2 is cyano, --CHO,
--C(O)R.sup.5, --C(O)CF.sub.3,
--C(O)CF.sub.2CF.sub.2R.sup.9--CH.dbd.CHS(O).sub.2R.sup.5,
--C(O)CF.sub.2C(O)NR.sup.5R.sup.6, --C(O)C(O)NR.sup.5R.sup.6,
--C(O)C(O)OR.sup.5, --C(O)CH.sub.2OR.sup.5,
--C(O)CH.sub.2N(R.sup.6)SO.sub.2R.sup.5,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2OR.sup.6,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2NR.sup.6 or --C(O)C(O)R.sup.5,
wherein R.sup.5 is (C.sub.1-4)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.4-10)aryl(C.sub.0-6)alkyl,
(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl or
hetero(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl, R.sup.6 is hydrogen
or (C.sub.1-6)alkyl and R.sup.9 is halo; X.sup.3 represents a group
of Formula (b): ##STR623## in which n is 1 or 2, z is 0 or 1,
X.sup.6 is O or NR.sup.11, wherein R.sup.11 is selected from
hydrogen, (C.sub.1-6)alkyl, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12, --X.sup.4S(O).sub.2R.sup.14,
--R.sup.15, --X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15 and
--X.sup.4S(O).sub.2NR.sup.12R.sup.15, in which X.sup.4 is a bond or
(C.sub.1-6)alkylene; R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl; R.sup.13 is hydrogen,
(C.sub.1-4)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; wherein within
X.sup.1 any cycloalkyl, heterocycloalkyl, aryl or heteroaryl may be
substituted with 1 radical selected from --R.sup.15 and
--X.sup.4C(O)R.sup.15; and wherein X.sup.1 may be substituted
further with 1 to 3 radicals independently selected from
(C.sub.1-6)alkyl, halo-substituted(C.sub.1-4)alkyl,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4OR.sup.13 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13,
R.sup.14 and R.sup.15 are as defined above; R.sup.1 and R.sup.2 are
both fluoro; or R.sup.1 is hydrogen or (C.sub.1-6)alkyl and R.sup.2
is selected from the group consisting of hydrogen,
(C.sub.1-6)alkyl, --X.sup.4OR.sup.13 and --R.sup.15; or R.sup.1 and
R.sup.2 taken together with the carbon atom to which both R.sup.1
and R.sup.2 are attached form (C.sub.3-8)cycloalkylene or
hetero(C.sub.3-8)cycloalkylene; wherein R.sup.2 may be substituted
further with (C.sub.1-6)alkyl; wherein X.sup.4, R.sup.13 and
R.sup.15 are as defined above; R.sup.3 and R.sup.4 are
independently --C(R.sup.16)(R.sup.17)X.sup.7, wherein R.sup.16 and
R.sup.17 are hydrogen, (C.sub.1-6)alkyl or fluoro, or R.sup.16 is
hydrogen and R.sup.17 is hydroxy and X.sup.7 is selected from
--X.sup.4SR.sup.13, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15 and --X.sup.4C(O)NR.sup.15R.sup.12, wherein
X.sup.4, R.sup.12, R.sup.13 and R.sup.15 are as defined above;
wherein within one of R.sup.3 or R.sup.4 any cycloalkyl,
heterocycloalkyl, aryl or heteroaryl may be substituted with 1
radical selected from --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12 and R.sup.15 are as defined above; and wherein each of
R.sup.3 and R.sup.4 may be substituted further with 1 to 5 radicals
independently selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; wherein within one of R.sup.3
and R.sup.4 any cycloalkyl, heterocycloalkyl, aryl or heteroaryl
may be substituted with 1 radical selected from --R.sup.15 and
--X.sup.4OR.sup.15; and wherein each of R.sup.3 or R.sup.4 may be
substituted further by 1-5 radicals independently selected from
(C.sub.1-6)alkyl, cyano, halo, halo-substituted(C.sub.1-4)alkyl,
--X.sup.4NR.sup.12C(O)OR.sup.12, --X.sup.4OR.sup.13,
--X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13,
R.sup.14 and R.sup.15 are as defined above; and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
3. A compound of claim 2 in which R.sup.3 and R.sup.4 are
independently --CH.sub.2X.sup.7, wherein X.sup.7 is selected from
X.sup.4SR.sup.13, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15 and --X.sup.4C(O)NR.sup.15R.sup.12, wherein
X.sup.4 is a bond or (C.sub.1-6)alkylene, R.sup.12 at each
occurrence independently is hydrogen or (C.sub.1-6)alkyl, R.sup.13
is hydrogen, (C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl,
R.sup.14 is (C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl
and R.sup.15 is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; wherein within
R.sup.3 and R.sup.4 any cycloalkyl, heterocycloalkyl, aryl or
heteroaryl may be substituted with 1 radical selected from
--R.sup.15 and --X.sup.4OR.sup.15, wherein X.sup.4 and R.sup.15 are
as defined above; and wherein R.sup.3 and R.sup.4 may be
substituted further by 1 to 5 radicals independently selected from
(C.sub.1-6)alkyl, cyano, halo, halo-substituted(C.sub.1-4)alkyl,
--X.sup.4NR.sup.12C(O)OR.sup.12, --X.sup.4OR.sup.13,
--X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4R.sup.12, R.sup.13 and
R.sup.14 are as defined above; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
4. A compound of claim 3 in which R.sup.3 is selected from
5-bromo-thiophen-2-ylmethyl, 3-cyclohexylpropyl,
2-cyclohexylpropyl, 2-cyclopentylpropyl, 3-phenylpropyl,
3-(2-difluoromethoxy)phenylpropyl, 2-phenylcyclopropylmethyl,
2,2-difluoro-3-phenylpropyl, 1-benzylcyclopropylmethy,
2-tetrahydro-pyran-4-ylethyl, 1-isobutylcyclopropylmethyl,
thiophen-2-ylmethyl, tetrahydro-pyran-4-ylmethyl,
cyclopropylmethylsulfanylmethyl, 2,2-dimethyl-3-phenylpropyl,
4-methyl-[[1,2,5]thiadiazol-3-ylmethylsulfonylmethyl,
3-methyl-[1,2,4]thiadiazol-3-ylmethylsulfonylmethyl,
thiophen-3-ylmethylsulfonylmethyl,
3-methoxy-5-methyl-isoxazol-4-ylmethylsulfonylmethyl,
2,4-dimethyl-thiazol-5-ylmethylsulfonylmethyl,
2-methyl-oxazol-4-ylmethylsulfonylmethyl,
2-methyl-thiazol-4-ylmethylsulfonylmethyl,
[1,2,3]thiadiazol-4-ylmethylsulfonylmethyl,
3-methyl-[1,2,4]thiadiazol-5-ylmethylsulfonylmethyl,
4-methyl-[1,2,5]thiadiazol-3-ylmethylsulfonylmethyl,
thiophen-3-ylmethylsulfonylmethyl, tetrahydro-pyran-4-yloxymethyl,
piperidin-1-ylcarbonyl, thiophene-2-sulfonylmethyl,
3-chloro-2-fluoro-benzylsulfonylmethyl, benzenesulfonylmethyl,
benzylsulfonylmethyl,
2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl,
2-benzenesulfonyl-ethyl, 2-(pyridine-2-sulfonyl)-ethyl,
2-(pyridine-4-sulfonyl)-ethyl, 2-benzylsulfonyl-ethyl,
oxy-pyridin-2-ylmethylsulfonylmethyl, prop-2-ene-1-sulfonylmethyl,
4-methoxy-benzylsulfonylmethyl, p-tolylmethylsulfonylmethyl,
4-chloro-benzylsulfonylmethyl, o-tolylmethylsulfonylmethyl,
3,5-dimethyl-benzylsulfonylmethyl,
4-trifluoromethyl-benzylsulfonylmethyl,
4-trifluoromethoxy-benzylsulfonylmethyl,
2-bromo-benzylsulfonylmethyl, pyridin-2-ylmethylsulfonylmethyl,
pyridin-3-ylmethylsulfonylmethyl, pyridin-4-ylmethylsulfonylmethyl,
naphthalen-2-ylmethylsulfonylmethyl, 3-methyl-benzylsulfonylmethyl,
3-trifluoromethyl-benzylsulfonylmethyl,
3-trifluoromethoxy-benzylsulfonylmethyl,
4-fluoro-2-trifluoromethoxy-benzylsulfonylmethyl,
2-fluoro-6-trifluoromethyl-benzylsulfonylmethyl,
3-chloro-benzylsulfonylmethyl, 2-fluoro-benzylsulfonylmethyl,
2-trifluoro-benzylsulfonylmethyl, 2-cyano-benzylsulfonylmethyl,
4-tert-butyl-benzylsulfonylmethyl,
2-fluoro-3-methyl-benzylsulfonylmethyl,
3-fluoro-benzylsulfonylmethyl, 4-fluoro-benzylsulfonylmethyl,
2-chloro-benzylsulfonylmethyl, 2,5-difluoro-benzylsulfonylmethyl,
2,6-difluoro-benzylsulfonylmethyl,
2,5-dichloro-benzylsulfonylmethyl,
3,4-dichloro-benzylsulfonylmethyl,
2-(11,1-difluoro-methoxy)-benzylsulfonylmethyl,
2-cyano-benzylsulfonylmethyl, 3-cyano-benzylsulfonylmethyl,
2-trifluoromethoxy-benzylsulfonylmethyl,
2,3-difluoro-benzylsulfonylmethyl,
2,5-difluoro-benzylsulfonylmethyl,
biphenyl-2-ylmethylsulfonylmethyl, cyclohexylmethyl,
3-fluoro-benzylsulfonylmethyl, 3,4-difluoro-benzylsulfonylmethyl,
2,4-difluoro-benzylsulfonylmethyl,
2,4,6-trifluoro-benzylsulfonylmethyl,
2,4,5-trifluoro-benzylsulfonylmethyl,
2,3,4-trifluoro-benzylsulfonylmethyl,
2,3,5-trifluoro-benzylsulfonylmethyl,
2,5,6-trifluoro-benzylsulfonylmethyl,
2-chloro-5-trifluoromethylbenzylsulfonylmethyl,
2-methyl-propane-1-sulfonyl,
2-fluoro-3-trifluoromethylbenzylsulfonylmethyl,
2-fluoro-4-trifluoromethylbenzylsulfonylmethyl,
2-fluoro-5-trifluoromethylbenzylsulfonylmethyl,
4-fluoro-3-trifluoromethylbenzylsulfonylmethyl,
2-methoxy-benzylsulfonylmethyl,
3,5-bis-trifluoromethyl-benzylsulfonylmethyl,
4-difluoromethoxy-benzylsulfonylmethyl,
2-difluoromethoxy-benzylsulfonylmethyl,
3-difluoromethoxy-benzylsulfonylmethyl,
2,6-dichloro-benzylsulfonylmethyl,
biphenyl-4-ylmethylsulfonylmethyl,
3,5-dimethyl-isoxazol-4-ylmethylsulfonylmethyl,
5-chloro-thiophen-2-ylmethylsulfonylmethyl,
2-[4-(1,1-Difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-[2-(1,1-Difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-[3-(1,1-Difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-(4-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-(3-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-(2-trifluoromethoxy-benzenesulfonyl)-ethyl,
(cyanomethyl-methyl-carbamoyl)-methyl, biphenyl-3-ylmethyl,
2-oxo-2-pyrrolidin-1-yl-ethyl, 2-benzenesulfonyl-ethyl,
isobutylsulfanylmethyl, 2-phenylsulfanyl-ethyl,
cyclohexylmethylsulfonylmethyl, 2-cyclohexyl-ethanesulfonyl,
benzyl, naphthalen-2-yl, benzylsulfanylmethyl,
2-trifluoromethyl-benzylsulfanylmethyl, phenylsulfanyl-ethyl and
cyclopropylmethylsulfonylmethyl; and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof; and the pharmaceutically acceptable
salts and solvates of such compounds and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof.
5. A compound of claim 4 in which R.sup.4 is selected from
2-trifluorobenzylsulfonylmethyl, 3-phenylsulfanylpropyl,
4-chlorobenzylsulfonylmethyl, thiophen-2-ylsulfonylmethyl,
benzylsulfonylmethyl, 4-methylbenzylsulfonylmethyl,
2-phenylsulfonylethyl, 2-pyridin-2-ylsulfonylethyl,
2-pyridin-4-ylsulfonylethyl, 2-benzylsulfonylethyl,
2-(3-difluoromethoxyphenylsulfonyl)ethyl,
naphthalen-2-ylmethylsulfonylmethyl,
pyridin-2-ylmethylsulfonylmethyl, 3-methylbenzylsulfonylmethyl,
3-trifluoromethylbenzylsulfonylmethyl,
3-difluoromethoxybenzylsulfonylmethyl,
3-chlorobenzylsulfonylmethyl, 3-fluorobenzylsulfonylmethyl,
4-fluorobenzylsulfonylmethyl, 3-cyanobenzylsulfonylmethyl,
4-cyanobenzylsulfonylmethyl, 3,4-difluorobenzylsulfonylmethyl,
benzylsulfonylmethyl, N-cyanomethyl-N-methylcarbamoylmethyl,
3-bromobenzyl, 4-phenylbutyl, 2,2-difluoro-3-phenylpropyl,
4'-methylsulfonylaminobiphenyl-3-ylmethyl,
4'-ethoxycarbonylaminobiphenyl-3-ylmethyl,
4-methylpiperazin-1-ylcarbonylmethyl,
1-fluoro-2-(4-methylpiperazin-1-yl)-2-oxoethyl,
1-hydroxy-4-methylpiperazin-1-yl-2-oxoethyl,
1-hydroxy-2-morpholin-4-yl-2-oxoethyl,
1-hydroxy-2-oxo-2-pyrrolidin-1-yl-ethyl,
1-fluoro-2-oxo-2-pyrrolidin-1-yl-ethyl,
1-fluoro-2-isopropylamino-2-oxoethyl,
1-hydroxy-2-isopropylamino-2-oxoethyl,
1-fluoro-2-oxo-2-piperazin-1-ylethyl,
thiophen-3-ylmethylsulfonylmethyl,
4-methyl-[1,2,5]thiadiazol-3-ylmethylsulfonylmethyl,
3-methoxy-5-methyl-isoxazol-4-ylmethylsulfonylmethyl,
2,4-dimethyl-thiazol-5-ylmethylsulfonylmethyl,
2-methyl-oxazol-4-ylmethylsulfonylmethyl,
2-methyl-thiazol-4-ylmethylsulfonylmethyl,
2-([1,2,3]thiadiazol-4-ylmethylsulfonyl)-ethyl,
2-(3-methyl-[1,2,4]thiadiazol-5-ylmethylsulfonyl)-ethyl,
2-oxo-2-phenyl-ethyl, 2-morpholin-4-yl-2-oxo-ethyl,
2-benzenesulfonyl-ethyl, 2-naphthalen-2-yl-2-oxo-ethyl,
2-benzo[1,3]dioxol-5-yl-2-oxo-ethyl,
2-benzo[b]thiophen-2-yl-2-oxo-ethyl, 2-biphenyl-4-yl-2-oxo-ethyl,
4-benzylsulfonylmethyl,
2-(3-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-oxo-2-(4-phenoxy-phenyl)-ethyl, 2-(4-hydroxy-phenyl)-2-oxo-ethyl,
benzylcarbamoyl-methyl, 4-acetyl-piperazine-1-carboxylic acid ethyl
ester, cyclohexylcarbamoylmethyl,
2-(3-Chloro-benzo[b]thiophen-2-yl)-2-oxo-ethyl,
benzenesulfonylmethyl, 2-oxo-2-thiophen-2-yl-ethyl,
2-oxo-2-thiophen-3-yl-ethyl, naphthalene-2-sulfonylmethyl,
2-(5-methyl-thiophen-2-yl)-2-oxo-ethyl,
2-(3-chloro-thiophen-2-yl)-2-oxo-ethyl,
5-methyl-thiophene-2-sulfonylmethyl, phenylcarbamoylmethyl,
(5,6,7,8-tetrahydro-naphthalen-1-ylcarbamoyl)-methyl,
(4-carbamoyl-phenylcarbamoyl)-methyl,
(3-carbamoyl-phenylcarbamoyl)-methyl,
(butyl-methyl-carbamoyl)-methyl, biphenyl-4-ylmethyl,
2-oxo-2-p-tolyl-ethyl, 2-(3-fluoro-4-methoxy-phenyl)-2-oxo-ethyl,
2-(4-chloro-phenyl)-2-oxo-ethyl, 2-(4-methoxy-phenyl)-2-oxo-ethyl,
2-oxo-2-(4-trifluoromethoxy-phenyl)-ethyl,
2-(3,4-difluoro-phenyl)-2-oxo-ethyl,
2-(3,4-dimethoxy-phenyl)-2-oxo-ethyl,
2-(4-fluoro-phenyl)-2-oxo-ethyl, 5-methyl-2-oxo-hexyl,
3,5-dimethyl-benzylsulfonylmethyl,
4-trifluoromethyl-benzylsulfonylmethyl;
4-trifluoromethoxy-benzylsulfonylmethyl, isopropylcarbamoyl-methyl,
4-dimethylcarbamoylmethyl, pyridin-4-ylcarbamoylmethyl,
pyridin-4-ylmethylsulfonylmethyl, pyridin-3-ylmethylsulfonylmethyl,
3,4-dichloro-benzylsulfonylmethyl, pyridin-3-ylcarbamoylmethyl,
4-methoxy-benzylsulfonylmethyl, 4-chloro-benzylsulfonylmethyl,
thiophene-2-sulfonylmethyl, benzylsulfonylmethyl,
p-tolylmethylsulfonylmethyl, 2-benzenesulfonyl-ethyl,
2-(pyridine-2-sulfonyl)-ethyl, 2-(pyridine-4-sulfonyl)-ethyl,
2-benzylsulfonyl-ethyl,
2-[3-(11,1-Difluoro-methoxy)-benzenesulfonyl]-ethyl,
naphthalen-2-ylmethylsulfonylmethyl,
pyridin-2-ylmethylsulfonylmethyl, m-tolylmethylsulfonylmethyl,
3-trifluoromethyl-benzylsulfonylmethyl,
3-trifluoromethoxy-benzylsulfonylmethyl,
3-chloro-benzylsulfonylmethyl, 3-fluoro-benzylsulfonylmethyl,
4-fluoro-benzylsulfonylmethyl, 3-cyano-benzylsulfonylmethyl,
4-cyano-benzylsulfonylmethyl, 3,4-difluoro-benzylsulfonylmethyl,
(cyanomethyl-methyl-carbamoyl)-methyl, 3-bromo-benzyl,
2-oxo-2-pyrrolidin-1-yl-ethyl,
2-(4'-chloro-biphenyl-4-yl)-2-oxo-ethyl, biphenyl-3-ylmethyl,
2-(11,1-difluoro-methoxy)-benzylsulfonylmethyl,
2-(4-methylsulfonylamino-phenyl)-2-oxo-ethyl,
2-oxo-2-piperidin-1-yl-ethyl,
2-(4-methylsulfonyl-piperazin-1-yl)-2-oxo-ethyl,
2-trifluoromethyl-benzylsulfonylmethyl,
4-fluoro-3-trifluoromethyl-benzylsulfonylmethyl,
4-carboxy-benzylsulfonylmethyl,
3,5-bis-trifluoromethyl-benzylsulfonylmethyl, 4-(,
1-difluoro-methoxy)-benzylsulfonylmethyl,
3-(1,1-difluoro-methoxy)-benzylsulfonylmethyl,
5-chloro-thiophen-2-ylmethylsulfonylmethyl,
2-[4-(1,1-difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-(4-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-phenylsulfanyl-ethyl, benzylsulfanylmethyl,
2-trifluoromethyl-benzylsulfanylmethyl,
2-trifluoromethoxy-benzylsulfanylmethyl, 2-cyclohexyl-ethyl and
isobutylsulfanylmethyl; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
6. The compound of claim 5 in which R.sup.1 is hydrogen or
(C.sub.1-6)alkyl and R.sup.2 is hydrogen, --X.sup.4OR.sup.13,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.5-10)aryl(C.sub.0-6)alkyl or (C.sub.1-6)alkyl; or R.sup.1
and R.sup.2 taken together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form (C.sub.3-8)cycloalkylene or
hetero(C.sub.3-8)cycloalkylene; wherein the cycloalkylene or
heterocycloalkylene are optionally substituted with 1 to 3
(C.sub.1-6)alkyl radicals; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
7. The compound of claim 6 in which R.sup.1 is hydrogen or methyl
and R.sup.2 is methoxymethyl, methoxyethyl, methyl, ethyl, propyl,
butyl, phenethyl, hiophen-2-yl or 5-methyl-furan-2-yl; or R.sup.1
and R.sup.2 taken together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form cyclopropyl,
tetrahydro-pyran-4-yl or 1-methyl-piperidin-4-yl; and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
8. The compound of claim 7 of Formula I(a): ##STR624## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
9. The compound of claim 8 selected from the group consisting of
3-biphenyl-3-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide;
3-biphenyl-4-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide;
3-(3-bromo-phenyl)-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide;
N-cyanomethyl-3-(3-cyano-benzylsulfonyl)-2-benzylsulfonyl-methyl-propiona-
mide;
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfanylmethyl]-3-ben-
zylsulfanyl-propionamide;
N-cyanomethyl-3-(2-trifluoromethyl-benzylsulfanyl)-2-(2-trifluoro-methyl--
benzylsulfanylmethyl)-propionamide;
N-cyanomethyl-3-isobutylsulfanyl-2-isobutylsulfanylmethyl-propionamide;
N-cyanomethyl-4-phenylsulfanyl-2-(2-phenylsulfanyl-ethyl)-butyramide;
N-cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfanyl]-2-[2-(1,1-diflu-
oro-methoxy)-benzylsulfanylmethyl]-propionamide;
3-benzylsulfanyl-2-benzylsulfanylmethyl-N-cyanomethyl-propionamide;
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-benzylsu-
lfonyl-propionamide;
N-cyanomethyl-3-(2-trifluoromethyl-benzylsulfonyl)-2-(2-trifluoromethyl-b-
enzylsulfonylmethyl)-propionamide;
4-benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N-cyanomethyl-butyramide;
N-cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfonyl]-2-[2-(1,1-diflu-
oro-methoxy)-benzylsulfonylmethyl]-propionamide;
N-cyanomethyl-3-benzylsulfonyl-2-benzylsulfonylmethyl-propionamide;
N-cyanomethyl-3-(2-methyl-propane-1-sulfonyl)-2-(2-methyl-propane-1-sulfo-
nylmethyl)-propionamide;
N-cyanomethyl-3-(2-methyl-thiazol-4-ylmethylsulfonyl)-2-benzyl-sulfonylme-
thyl-propionamide;
3-biphenyl-3-yl-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzyl-sulfonyl-
methyl]-propionamide;
(3'-{2-(cyanomethyl-carbamoyl)-3-[2-(1,1-difluoro-methoxy)-benzyl-sulfony-
l]-propyl}-biphenyl-4-yl)-carbamic acid ethyl ester;
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-(4'-met-
hylsulfonylamino-biphenyl-3-yl)-propionamide;
3-(3-bromo-phenyl)-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-phenyl-methy-
lsulfonylmethyl]-propionamide;
N-cyanomethyl-2-((E)-3-phenyl-allyl)-3-benzylsulfonyl-propionamide;
and
N-cyanomethyl-3-benzylsulfonyl-2-(3-phenyl-propyl)-propionamide;
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates of such
compounds and the N-oxide derivatives, prodrug derivatives,
protected derivatives, individual isomers and mixtures of isomers
thereof.
10. The compound of claim 7 of Formula I(b): ##STR625## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
11. The compound of claim 10 in which R.sup.5 is
1H-benzoimidazol-2-yl, benzooxazol-2-yl,
oxazolo[4,5-b]pyridin-2-yl, benzothiazol-2-yl,
5-phenyl-[1,3,4]oxadiazol-2-yl,
4-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl,
5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl,
5-pyridazin-3-yl-[1,3,4]oxadiazol-2-yl, pyrimidin-2-yl,
pyridazin-3-yl, 3-phenyl-[1,2,4]oxadiazol-5-yl,
5-methoxymethyl-[1,3,4]oxadiazol-2-yl,
5-ethyl-[1,3,4]oxadiazol-2-yl, 1,3,4]thiadiazol-2-yl,
benzyloxycarbonyl, benzyloxydicarbonyl, phenyldicarbonyl,
5-methyl-[1,3,4]thiadiazol-2-yl,
5-trifluoromethyl-[1,3,4]oxadiazol-2-yl,
5-methyl-[1,3,4]oxadiazol-2-yl, 5-methyl-[1,2,4]oxadiazol-3-yl,
5-phenyl-[1,2,4]oxadiazol-3-yl,
5-thiophen-3-yl-[1,2,4]oxadiazol-3-yl,
5-trifluoromethyl-[1,2,4]oxadiazol-3-yl,
3-methyl-[1,2,4]oxadiazol-5-yl or 3-pyrazin-2-yl; and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
12. The compound of claim 11 selected from the group consisting of
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide;
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-(2-trifluoromethyl-benz-
ylsulfonyl)-2-(2-trifluoromethyl-benzylsulfonylmethyl)-propionamide;
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-(2-methoxy-benzenesulf-
onyl)-2-[2-(2-methoxy-benzenesulfonyl)-ethyl]-butyramide;
4-Benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N-[(S)-1-(1-benzooxazol-2-y-
l-methanoyl)-butyl]-butyramide;
(R)--N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-2-cyclohexylmethyl-3-
-benzylsulfonyl-propionaminde;
N--[(S)-1-(1-benzothiazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo--
2-benzylsulfonylmethyl-butyramide;
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-cyclohexyl-2-cyclohexyl-
methyl-propionamide;
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-isobutylsulfanyl-2-isob-
utylsulfanylmethyl-propionamide;
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfanyl-2-benzyl-
sulfanylmethyl-propionamide;
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-4-phenylsulfanyl-2-(2-phe-
nylsulfanyl-ethyl)-butyramide;
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide;
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide;
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,-
4]oxadiazol-5-yl)-methanoyl]-propyl}-butyramide;
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-2-[2-(1,1-difluoro-methox-
y)-benzylsulfonylmethyl]-3-benzylsulfonyl-propionamide;
4-Morpholin-4-yl-4-oxo-N-[1-(2-oxo-2-phenyl-acetyl)-pentyl]-2-benzylsulfo-
nylmethyl-butyramide;
N-(1,1-Dimethyl-2-oxazolo[4,5-b]pyridin-2-yl-2-oxo-ethyl)-4-morpholin-4-y-
l-4-oxo-2-benzylsulfonylmethyl-butyramide;
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-
-2-benzylsulfonylmethyl-butyramide;
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl-
-methyl-4-piperidin-1-yl-butyramide;
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl-
-methyl-4-pyrrolidin-1-yl-butyramide;
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-morpholin-4-
-yl-4-oxo-2-benzylsulfonylmethyl-butyramide;
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-piperidin-1-yl-butyramide;
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-pyrrolidin-1-yl-butyramide;
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadi-
azole-2-carbonyl)-propyl]-butyramide;
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-piperidin-1-yl-butyramide;
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-pyrrolidin-1-yl-butyramide;
4-Morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-
-benzylsulfonylmethyl-butyramide;
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-piperidin-1-yl-butyramide;
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-pyrrolidin-1-yl-butyramide;
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide;
4-Oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-N-[1-(5-pyridin-4-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide;
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4]oxadiazole-2-car-
bonyl)-propyl]-4-pyrrolidin-1-yl-butyramide;
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-3-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pip-
eridin-1-yl-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyr-
rolidin-1-yl-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-y-
l-4-oxo-butyramide;
2-Cyclohexylmethyl-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbon-
yl)-propyl]-4-oxo-butyramide;
2-Cyclohexylmethyl-N-[1-(5-ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-m-
orpholin-4-yl-4-oxo-butyramide;
N-(2-Benzooxazol-2-yl-1-methoxymethyl-2-oxo-ethyl)-2-(2-difluoromethoxy-b-
enzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-(2-cyclohexyl-ethyl)-4-morpholin-
-4-yl-4-oxo-butyramide;
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-ca-
rbonyl)-propyl]-4-oxo-butyramide;
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5-phenyl-[1,3,4]oxadi-
azole-2-carbonyl)-propyl]-butyramide;
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5-
-phenyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-butyramide;
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-N-[1-(5-ethyl-[1,3,4]oxadiazol-
e-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-(2-difluoromethoxy-benzyl-sulfon-
ylmethyl)-4-morpholin-4-yl-4-oxo-butyramide;
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
1-(benzooxazole-2-carbonyl)-propyl]-amide;
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(5-phenyl-1,2,4-o-
xadiazole-3-carbonyl)-propyl]-butyramide;
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
(S)-1-(5-phenyl-[1,2,4]oxadiazole-3-carbonyl)-propyl]-amide;
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N--[(S)-1-(5-phenyl-1,2,4-o-
xadiazole-3-carbonyl)-propyl]-butyramide;
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-phenyl-1,2,4-o-
xadiazole-5-cabonyl)-propyl]-butyramide;
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-butyramide;
N-(1,1-Dimethyl-2-oxazol-2-yl-2-oxo-ethyl)-4-morpholin-4-yl-4-oxo-2-benzy-
lsulfonylmethyl-butyramide;
N-4-Isopropyl-N-1-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-2-benzylsulfon-
ylmethyl-succinamide;
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole-
-2-carbonyl)-3-phenyl-propyl]-4-oxo-butyramide;
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole-2-ca-
rbonyl)-3-phenyl-propyl]-4-oxo-butyramide;
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-N-[1-(oxazole-2-carbon-
yl)-3-phenyl-propyl]-4-oxo-butyramide;
N-[1-(Benzooxazole-2-carbonyl)-butyl]-2-benzylsulfonyl-3-(tetrahydro-pyra-
n-4-yloxymethyl)-propionamide;
N-[1-(Benzooxazole-2-carbonyl)-butyl]-3-ethanesulfonyl-2-(tetrahydro-pyra-
n-4-yloxymethyl)-propionamide;
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-cyclopropylmethylsulfonyl-methy-
l-4-morpholin-4-yl-4-oxo-butyramide;
2-Cyclopropylmethylsulfonylmethyl-N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-o-
xadiazol-5-yl)-methyl]-propyl}-4-morpholin-4-yl-4-oxo-butyramide;
N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-2-(-
2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide;
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-amide-
;
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-ph-
enyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide;
2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-
-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide;
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
(S)-1-(3-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl}-amide;
N-[(1S)-1-(Benzooxazol-2-yl-hydroxy-methyl)-3-phenyl-propyl]-2-cyclopropy-
lmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyramide;
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid, 1-(benzoxazole-2-carbonyl)-propyl]-amide;
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo--
ethyl)-pentanoic acid, 1-(benzoxazole-2-carbonyl)-propyl]-amide;
and
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-cyclopropyl]-4-oxo-2-benzylsul-
fonyl methyl-butyramide; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof, and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
13. The compound of claim 7 of Formula I(c): ##STR626## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
14. The compound of claim 13 in which R.sup.5 is phenyl; and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
15. The compound of claim 14 selected from the group consisting of
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide and
N-(3-benzenesulfonyl-1-phenethyl-allyl)-3-benzylsulfonyl-2-benzylsulfonyl-
methyl-propionamide; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
16. The compound of claim 7 of Formula I(d): ##STR627## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
17. The compound of claim 16 in which R.sup.5 is phenyl and R.sup.6
is hydrogen; and the N-oxide derivatives, prodrug derivatives,
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates of
such compounds and the N-oxide derivatives, prodrug derivatives,
protected derivatives, individual isomers and mixtures of isomers
thereof.
18. The compound of claim 17 namely
N-(3-benzenesulfonylamino-2-oxo-propyl)-4-morpholin-4-yl-4-oxo-2-benzylsu-
lfonylmethyl-butyramide; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
19. The compound of claim 7 of Formula I(e): ##STR628## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
20. The compound of claim 19 in which R.sup.5 and R.sup.6 is
methyl; and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates of such
compounds and the N-oxide derivatives, prodrug derivatives,
protected derivatives, individual isomers and mixtures of isomers
thereof.
21. The compound of claim 20 in which one X.sup.7 is
morpholine-4-carbonyl and the other is benzylsulfonyl, R.sup.1 is
hydrogen and R.sup.2 is ethyl, namely
(S)-2,2-difluoro-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoy-
lamino)-3-oxo-hexanoic acid dimethylamide; and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
22. The compound of claim 7 of Formula I(f): ##STR629## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
23. The compound of claim 22 in which R.sup.5 is methyl, benzyl,
phenethyl, cyclohexyl, methoxyethyl, dimethylaminoethyl,
tetrahydro-pyran-4-yl, 1-methylsulfonyl-piperidin-4-yl,
4-methyl-piperazin-1-yl, morpholin-4-ylethyl, pyridin-2-yl,
pyridin-2-ylmethyl or oxazol-2-ylmethyl; R.sup.6 is hydrogen or
methyl; or R.sup.5 and R.sup.6 together with the nitrogen atom to
which both R.sup.5 and R.sup.6 are attached form morpholine-4-yl,
pyrrolidin-1-yl, 4-dimethylamino-piperazin-1-yl,
4-hydroxy-piperazin-1-yl, 4-pyridin-2-yl-piperazin-1-yl,
4-benzoyl-piperazin-1-yl or 3-oxo-piperazin-1-yl; and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
24. The compound of claim 23 selected from the group consisting of
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide and
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide; and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof; and the pharmaceutically acceptable
salts and solvates of such compounds and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof.
25. The compound of claim 7 of Formula I(g): ##STR630## and the
N-oxide derivatives, prodrug derivatives, protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates of such compounds
and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers
thereof.
26. The compound of claim 25 in which X.sup.3 is
1-benzoyl-4-oxo-pyrrolidin-3-yl, 4-oxo-pyrrolidin-3-yl-1-carboxylic
acid tert-butyl ester, 2-methyl-4-oxo-tetrahydro-furan-3-yl,
2-ethyl-4-oxo-tetrahydro-furan-3-yl, 4-oxo-tetrahydro-furan-3-yl,
2-acetoxy-4-oxo-azetidin-3-yl, 1-isopropyl-3-oxo-azepan-4-yl,
3-oxo-azepan-4-yl-1-carboxylic acid benzyl ester,
3-oxo-azepan-4-yl-1-carboxylic acid tert-butyl ester,
1-benzoyl-3-oxo-azepan-4-yl, 1-isobutyryl-3-oxo-azepan-4-yl,
3-oxo-1-(propane-2-sulfonyl)-azepan-4-yl,
1-benzenesulfonyl-3-oxo-azepan-4-yl,
1-benzenesulfonyl-3-oxo-piperidin-4-yl,
1-benzenesulfonyl-4-oxo-pyrrolidin-3-yl,
1-benzoyl-3-oxo-piperidin-4-yl or 3-oxo-tetrahydro-pyran-4-yl; and
the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates of such
compounds and the N-oxide derivatives, prodrug derivatives,
protected derivatives, individual isomers and mixtures of isomers
thereof.
27. The compound of claim 23 selected from the group consisting of
3-Hydroxy-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)--
azepane-1-carboxylic acid tert-butyl ester;
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)-
-3-hydroxy-azepane-1-carboxylic acid tert-butyl ester;
3-Hydroxy-4-[2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-
-butyrylamino]-azepane-1-carboxylic acid tert-butyl ester;
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azep-
ane-1-carboxylic acid tert-butyl ester;
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)-
-3-oxo-azepane-1-carboxylic acid tert-butyl ester;
4-[2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyrylam-
ino]-3-oxo-azepane-1-carboxylic acid tert-butyl ester;
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-4-morpholin-4-yl-4-oxo-2-benzylsu-
lfonylmethyl-butyramide;
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-(2-methyl-propane-1-sulfonylmet-
hyl)-4-morpholin-4-yl-4-oxo-butyramide;
3-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-4-oxo-pyrr-
olidine-1-carboxylic acid tert-butyl ester;
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azep-
ane-1-carboxylic acid benzyl ester; and acetic acid
(2S,3S)-3-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoylamino)-4-
-oxo-azetidin-2-yl ester; and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof; and the pharmaceutically acceptable salts and
solvates of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
28. A pharmaceutical composition comprising a therapeutically
effective amount of a compound of claim 1 in combination with a
pharmaceutically acceptable excipient.
29. A method for treating a disease in an animal in which
inhibition of Cathepsin S can prevent, inhibit or ameliorate the
pathology and/or symptomology of the disease, which method
comprises administering to the animal a therapeutically effective
amount of compound of claim 1 or a N-oxide derivative or individual
isomer or mixture of isomers thereof; or a pharmaceutically
acceptable salt or solvate of such compounds and the N-oxide
derivatives, prodrug derivatives, protected derivatives, individual
isomers and mixtures of isomers thereof.
30. The use of a compound of claim 1 in the manufacture of a
medicament for treating a disease in an animal in which Cathepsin S
activity contributes to the pathology and/or symptomology of the
disease.
31. A process for preparing a compound of Formula I: ##STR631## in
which: X.sup.1 is --C(R.sup.1)(R.sup.2)X.sup.2 or --X.sup.3;
X.sup.2 is cyano, --CHO, --C(R.sup.7)(R.sup.8)R.sup.5,
--C(R.sup.7)(R.sup.8)CF.sub.3,
--C(R.sup.7)(R.sup.8)CF.sub.2CF.sub.2R.sup.9--CH.dbd.CHS(O).sub.2R.sup.5,
--C(R.sup.8)CF.sub.2C(O)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2N(R.sup.6)SO.sub.2R.sup.5,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2OR.sup.-
6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2NR.su-
p.6 or --C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)R.sup.5; wherein
R.sup.5 is (C.sub.1-4)alkyl, (C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.4-10)aryl(C.sub.0-6)alkyl,
(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl or
hetero(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl; R.sup.6 is hydrogen
or (C.sub.1-6)alkyl; R.sup.7 is hydrogen or (C.sub.1-4)alkyl and
R.sup.8 is hydroxy or R.sup.7 and R.sup.8 together form oxo;
R.sup.9 is hydrogen, halo, (C.sub.1-4)alkyl,
(C.sub.5-10)aryl(C.sub.0-6)alkyl or
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl; X.sup.3 represents a group
of Formula (a): ##STR632## in which n is 1 or 2, z is 0 or 1,
X.sup.5 is selected from NR.sup.10, S or O, wherein R.sup.10 is
hydrogen or (C.sub.1-6)alkyl, and X.sup.6 is O, S or NR.sup.11,
wherein R.sup.11 is selected from hydrogen, (C.sub.1-6)alkyl,
--X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12, --X.sup.4S(O).sub.2R.sup.14,
--R.sup.15, --X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15 and
--X.sup.4S(O).sub.2NR.sup.12R.sup.15, in which X.sup.4 is a bond or
(C.sub.1-6)alkylene; R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl; R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; wherein within
X.sup.1 any cycloalkyl, heterocycloalkyl, aryl or heteroaryl may be
substituted with 1 radical R.sup.20 selected from --R.sup.15,
--X.sup.4OR.sup.15, --X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12; and wherein
X.sup.1 and R.sup.20 may be substituted further with 1 to 5
radicals independently selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.2)NR.sup.12R.sup.12, --X.sup.4OR.sup.13,
--X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4OC(O)R.sup.13, --X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14 wherein X.sup.4, R.sup.12, R.sup.13,
R.sup.14 and R.sup.15 are as defined above; R.sup.1 and R.sup.2 are
both fluoro; or R.sup.1 is hydrogen or (C.sub.1-6)alkyl and R.sup.2
is selected from the group consisting of hydrogen,
(C.sub.1-6)alkyl, cyano, --X.sup.4NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(O)R.sup.12, --X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4 SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--X.sup.4S(O).sub.2R.sup.14, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above; or
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form (C.sub.3-8)cycloalkylene
or hetero(C.sub.3-8)cycloalkylene; wherein R.sup.2, said
cycloalkylene and said heterocycloalkylene may be substituted
further with 1 to 3 radicals independently selected from
(C.sub.1-6)alkyl, cyano, halo, halo-substituted(C.sub.1-4)alkyl,
nitro, --X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12, --X.sup.4OR.sup.13,
--X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4OC(O)R.sup.13, --X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; R.sup.3 and R.sup.4 are
independently --C(R.sup.16)(R.sup.17)X.sup.7, wherein R.sup.16 and
R.sup.17 are hydrogen, (C.sub.1-6)alkyl or fluoro, or R.sup.16 is
hydrogen and R.sup.17 is hydroxy and X.sup.7 is selected from
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--R.sup.15, --X.sup.4OR.sup.15, --X.sup.4SR.sup.15,
--X.sup.4S(O)R.sup.15, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15, --X.sup.4C(O)OR.sup.15,
--X.sup.4OC(O)R.sup.15, --X.sup.4NR.sup.15R.sup.12,
--X.sup.4NR.sup.12C(O)R.sup.15, --X.sup.4NR.sup.12C(O)OR.sup.15,
--X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above;
wherein within one of R.sup.3 or R.sup.4 any cycloalkyl,
heterocycloalkyl, aryl or heteroaryl may be substituted with 1
radical R.sup.21 selected from --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(N.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12 and R.sup.15 are as defined above; and wherein each of
R.sup.3, R.sup.4 and R.sup.21 may be substituted further with 1 to
5 radicals independently selected from (C.sub.1-6)alkyl, cyano,
halo, halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; provided that only one bicyclic
ring structure is present within each of R.sup.3 or R.sup.4; and
provided that when X.sup.2 is cyano and X.sup.7 within one of
R.sup.3 or R.sup.4 is --X.sup.4C(O)R.sup.13 or
--X.sup.4C(O)R.sup.15, wherein X.sup.4 is a bond, then X.sup.7
within the other of R.sup.3 or R.sup.4 is limited to
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15 and
--X.sup.4S(O).sub.2R.sup.15, wherein R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl substituted with 1 to 5 radicals
or hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl optionally substituted
with 1 to 5 radicals, wherein said radicals are independently
selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12, --X.sup.4OR.sup.13,
--X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4OC(O)R.sup.13, --X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above, provided that the radical is not
selected from only halo when R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl; and provided that when X.sup.2 is
cyano then X.sup.7 within R.sup.3 and R.sup.4 is not
--X.sup.4C(O)NR.sup.12R.sup.12, --X.sup.4C(O)NR.sup.15R.sup.12 or
--X.sup.4C(O)NR.sup.18R.sup.19, wherein X.sup.4 is a bond and
R.sup.18 and R.sup.19 together with the nitrogen atom to which they
are attached form hetero(C.sub.3-10)cycloalkyl or
hetero(C.sub.5-10)aryl; and the corresponding N-oxides, and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof; and the pharmaceutically acceptable
salts and solvates of such compounds of formula I and their
N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof; which process
comprises: (A) reacting a compound of Formula 2: ##STR633## with a
compound of the formula NH.sub.2CR.sup.1R.sup.2X.sup.2, in which
X.sup.2, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined in
the Summary of the Invention for Formula I; or (B) reacting a
compound of Formula 2 with a compound of the formula
NH.sub.2X.sup.3, in which X.sup.3, R.sup.3 and R.sup.4 are as
defined in the Summary of the Invention for Formula I; or (C)
optionally converting a compound of Formula I into a
pharmaceutically acceptable salt; (D) optionally converting a salt
form of a compound of Formula I to non-salt form; (E) optionally
converting an unoxidized form of a compound of Formula I into a
pharmaceutically acceptable N-oxide; (F) optionally converting an
N-oxide form of a compound of Formula I its unoxidized form; (G)
optionally resolving an individual isomer of a compound of Formula
I from a mixture of isomers; (H) optionally converting a
non-derivatized compound of Formula I into a pharmaceutically
prodrug derivative; and (I) optionally converting a prodrug
derivative of a compound of Formula I to its non-derivatized form.
Description
[0001] This application is based on and claims priority from U.S.
Provisional Application Ser. No. 60/257,603 filed on Dec. 22,
2000.
THE INVENTION
[0002] This Application relates to compounds and compositions for
treating diseases associated with cysteine protease activity,
particularly diseases associated with activity of cathepsin S.
DESCRIPTION OF THE FIELD
[0003] Cysteine proteases represent a class of peptidases
characterized by the presence of a cysteine residue in the
catalytic site of the enzyme. Cysteine proteases are associated
with the normal degradation and processing of proteins. The
aberrant activity of cysteine proteases, e.g., as a result of
increase expression or enhanced activation, however, may have
pathological consequences. In this regard, certain cysteine
proteases are associated with a number of disease states, including
arthritis, muscular dystrophy, inflammation, tumor invasion,
glomerulonephritis, malaria, periodontal disease, metachromatic
leukodystrophy and others. An increase in cathepsin S activity
contributes to the pathology and/or symptomatology of a number of
diseases. Accordingly, molecules that inhibit the activity of
cathepsin S protease are useful as therapeutic agents in the
treatment of such diseases.
SUMMARY OF THE INVENTION
[0004] This Application relates to compounds of Formula I:
##STR1##
[0005] X.sup.1 is --C(R.sup.1)(R.sup.2)X.sup.2 or --X.sup.3;
[0006] X.sup.2 is cyano, --CHO, --C(R.sup.7)(R.sup.8)R.sup.5,
--C(R.sup.7)(R.sup.8)CF.sub.3,
--C(R.sup.7)(R.sup.8)CF.sub.2CF.sub.2R.sup.9
--CH.dbd.CHS(O).sub.2R.sup.5,
--C(R.sup.7)(R.sup.8)CF.sub.2C(O)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)NR.sup.5R.sup.6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2OR.sup.5,
--C(R.sup.7)(R.sup.8)CH.sub.2N(6)SO.sub.2R.sup.5,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2OR.sup.-
6,
--C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)N(R.sup.6)(CH.sub.2).sub.2NR.su-
p.6 or --C(R.sup.7)(R.sup.8)C(R.sup.7)(R.sup.8)R.sup.5; wherein
R.sup.5 is (C.sub.1-4)alkyl, (C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.4-10)aryl(C.sub.0-6)alkyl,
(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl or
hetero(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl; R.sup.6 is hydrogen
or (C.sub.1-6)alkyl; R.sup.7 is hydrogen or (C.sub.1-4)alkyl and
R.sup.8 is hydroxy or R.sup.7 and R.sup.8 together form oxo;
R.sup.9 is hydrogen, halo, (C.sub.1-4)alkyl,
(C.sub.5-10)aryl(C.sub.0-6)alkyl or
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl;
[0007] X.sup.3 represents a group of Formula (a): ##STR2## in which
n is 1 or 2, z is 0 or 1, X.sup.5 is selected from NR.sup.10, S or
O, wherein R.sup.10 is hydrogen or (C.sub.1-6)alkyl, and X.sup.6 is
O, S or NR.sup.11, wherein R.sup.11 is selected from hydrogen,
(C.sub.1-6)alkyl, --X.sup.4C(O)OR.sup.12, X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12, --X.sup.4S(O).sub.2R.sup.14,
--R.sup.15, --X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15 and
--X.sup.4S(O).sub.2NR.sup.12R.sup.15, in which X.sup.4 is a bond or
(C--)alkylene; R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl; R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl;
[0008] wherein within X.sup.1 any cycloalkyl, heterocycloalkyl,
aryl or heteroaryl may be substituted with 1 radical R.sup.20
selected from --R.sup.15, --X.sup.4OR.sup.15, --X.sup.4SR.sup.15,
--X.sup.4S(O)R.sup.15, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15, --X.sup.4C(O)OR.sup.15,
--X.sup.4OC(O)R.sup.15, --X.sup.4NR.sup.15R.sup.12,
--X.sup.4NR.sup.12C(O)R.sup.15, --X.sup.4NR.sup.12C(O)OR.sup.15,
--X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12; and wherein
X.sup.1 and R.sup.20 may be substituted further with 1 to 5
radicals independently selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4 SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14 wherein X.sup.4, R.sup.12, R.sup.13,
R.sup.14 and R.sup.15 are as defined above;
[0009] R.sup.1 and R.sup.2 are both fluoro; or
[0010] R.sup.1 is hydrogen or (C.sub.1-6)alkyl and R.sup.2 is
selected from the group consisting of hydrogen, (C.sub.1-6)alkyl,
cyano, --X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--X.sup.4S(O).sub.2R.sup.14, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, --X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above; or
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form (C.sub.3-8)cycloalkylene
or hetero(C.sub.3-8)cycloalkylene; wherein R.sup.2, said
cycloalkylene and said heterocycloalkylene may be substituted
further with 1 to 3 radicals independently selected from
(C.sub.1-6)alkyl, cyano, halo, halo-substituted(C.sub.1-4)alkyl,
nitro, --X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above;
[0011] R.sup.3 and R.sup.4 are independently
--C(R.sup.16)(R.sup.17)X.sup.7, wherein R.sup.16 and R.sup.17 are
hydrogen, (C.sub.1-6)alkyl or fluoro, or R.sup.16 is hydrogen and
R.sup.17 is hydroxy and X.sup.7 is selected from
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14,
--X.sup.4S(O).sub.2R.sup.14, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.15R.sup.12,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12, R.sup.13, R.sup.14 and R.sup.15 are as defined above;
[0012] wherein within one of R.sup.3 or R.sup.4 any cycloalkyl,
heterocycloalkyl, aryl or heteroaryl may be substituted with 1
radical R.sup.21 selected from --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15,
--X.sup.4S(O).sub.2R.sup.15, --X.sup.4C(O)R.sup.15,
--X.sup.4C(O)OR.sup.15, --X.sup.4OC(O)R.sup.15,
--X.sup.4NR.sup.15R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.15,
--X.sup.4NR.sup.12C(O)OR.sup.15, --X.sup.4C(O)NR.sup.12R.sup.15,
--X.sup.4S(O).sub.2NR.sup.15R.sup.12, --X.sup.4
NR.sup.12S(O).sub.2R.sup.15,
--X.sup.4NR.sup.12C(O)NR.sup.15R.sup.12 and
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12, wherein X.sup.4,
R.sup.12 and R.sup.15 are as defined above; and wherein each of
R.sup.3, R.sup.4 and R.sup.21 may be substituted further with 1 to
5 radicals independently selected from (C.sub.1-6)alkyl, cyano,
halo, halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above; provided that only one bicyclic
ring structure is present within each of R.sup.3 or R.sup.4; and
provided that when X.sup.2 is cyano and X.sup.7 within one of
R.sup.3 or R.sup.4 is --X.sup.4C(O)R.sup.13 or
--X.sup.4C(O)R.sup.15, wherein X.sup.4 is a bond, then X.sup.7
within the other of R.sup.3 or R.sup.4 is limited to
--X.sup.4SR.sup.15, --X.sup.4S(O)R.sup.15 and
--X.sup.4S(O).sub.2R.sup.15, wherein R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl substituted with 1 to 5 radicals
or hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl optionally substituted
with 1 to 5 radicals, wherein said radicals are independently
selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14, wherein X.sup.4, R.sup.12, R.sup.13
and R.sup.14 are as defined above, provided that the radical is not
selected from only halo when R.sup.15 is
(C.sub.6-10)aryl(C.sub.1-6)alkyl; and provided that when X.sup.2 is
cyano then X.sup.7 within R.sup.3 and R.sup.4 is not
--X.sup.4C(O)NR.sup.12R.sup.12, --X.sup.4C(O)NR.sup.15R.sup.12 or
--X.sup.4C(O)NR.sup.18R.sup.19, wherein X.sup.4 is a bond and
R.sup.18 and R.sup.19 together with the nitrogen atom to which they
are attached form hetero(C.sub.3-10)cycloalkyl or
hetero(C.sub.5-10)aryl;
[0013] and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and the N-oxide derivatives, prodrug
derivatives, protected derivatives, individual isomers and mixtures
of isomers thereof.
[0014] A second aspect of the invention is a pharmaceutical
composition which contains a compound of Formula I or a N-oxide
derivative, individual isomer or mixture of isomers thereof, or a
pharmaceutically acceptable salt thereof, in admixture with one or
more suitable excipients.
[0015] A third aspect of the invention is a method for treating a
disease in an animal in which inhibition of cathepsin S can
prevent, inhibit or ameliorate the pathology and/or symptomatology
of the disease, which method comprises administering to the animal
a therapeutically effective amount of compound of Formula I or a
N-oxide derivative, individual isomer or mixture of isomers
thereof; or a pharmaceutically acceptable salt thereof.
[0016] A fourth aspect of the invention is the processes for
preparing compounds of Formula I and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof; and the pharmaceutically acceptable
salts thereof.
DETAILED DESCRIPTION OF THE INVENTION
Definitions:
[0017] Unless otherwise stated, the following terms used in the
specification and claims are defined for the purposes of this
Application and have the following meanings.
[0018] "Alicyclic" means a moiety characterized by arrangement of
the carbon atoms in closed non-aromatic ring structures having
properties resembling those of aliphatics and may be saturated or
partially unsaturated with two or more double or triple bonds.
[0019] "Aliphatic" means a moiety characterized by a straight or
branched chain arrangement of the constituent carbon atoms and may
be saturated or partially unsaturated with two or more double or
triple bonds.
[0020] "Alkyl" represented by itself means a straight or branched,
saturated or unsaturated, aliphatic radical having the number of
carbon atoms indicated (e.g., (C.sub.1-6)alkyl includes methyl,
ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl,
vinyl, allyl, 1-propenyl, isopropenyl, 1-butenyl, 2-butenyl,
3-butenyl, 2-methylallyl, ethynyl, 1-propynyl, 2-propynyl, and the
like). Alkyl represented along with another radical (e.g., as in
arylalkyl) means a straight or branched, saturated or unsaturated
aliphatic divalent radical having the number of atoms indicated or
when no atoms are indicated means a bond (e.g.,
(C.sub.6-10)aryl(C.sub.0-3)alkyl includes phenyl, benzyl,
phenethyl, 1-phenylethyl 3-phenylpropyl, and the like).
[0021] "Alkylene", unless indicated otherwise, means a straight or
branched, saturated or unsaturated, aliphatic, divalent radical
having the number of carbon atoms indicated (e.g.,
(C.sub.1-6)alkylene includes methylene (--CH.sub.2--), ethylene
(--CH.sub.2CH.sub.2--), trimethylene
(--CH.sub.2CH.sub.2CH.sub.2--), tetramethylene
(--CH.sub.2CH.sub.2CH.sub.2CH.sub.2--) 2-butenylene
(--CH.sub.2CH.dbd.CHCH.sub.2--), 2-methyltetramethylene
(--CH.sub.2CH(CH.sub.3)CH.sub.2CH.sub.2--), pentamethylene
(--CH.sub.2CH.sub.2CH.sub.2CH.sub.2CH.sub.2--) and the like).
[0022] "Alkylidene" means a straight or branched saturated or
unsaturated, aliphatic, divalent radical having the number of
carbon atoms indicated (e.g. (C.sub.1-6)alkylidene includes
methylene (.dbd.CH.sub.2), ethylidene (.dbd.CHCH.sub.3),
isopropylidene (.dbd.C(CH.sub.3).sub.2), propylidene
(.dbd.CHCH.sub.2CH.sub.3), allylidene
(.dbd.CH.sup.-CH.dbd.CH.sub.2), and the like).
[0023] "Amino" means the radical --NH.sub.2. Unless indicated
otherwise, the compounds of the invention containing amino moieties
include protected derivatives thereof. Suitable protecting groups
for amino moieties include acetyl, tert-butoxycarbonyl,
benzyloxycarbonyl, and the like.
[0024] "Animal" includes humans, non-human mammals (e.g., dogs,
cats, rabbits, cattle, horses, sheep, goats, swine, deer, and the
like) and non-mammals (e.g., birds, and the like).
[0025] "Aromatic" means a moiety wherein the constituent atoms make
up an unsaturated ring system, all atoms in the ring system are
Sp.sup.2 hybridized and the total number of pi electrons is equal
to 4n+2.
[0026] "Aryl" means a monocyclic or fused bicyclic ring assembly
containing the total number of ring carbon atoms indicated, wherein
each ring is comprised of 6 ring carbon atoms and is aromatic or
when fused with a second ring forms an aromatic ring assembly. For
example, optionally substituted (C.sub.6-10)aryl as used in this
Application includes, but is not limited to, biphenyl-2-yl,
2-bromophenyl, 2-bromocarbonylphenyl, 2-bromo-5-fluorophenyl,
4-tert-butylphenyl, 4-carbamoylphenyl, 4-carboxy-2-nitrophenyl,
2-chlorophenyl, 4-chlorophenyl, 3-chlorocarbonylphenyl,
4-chlorocarbonylphenyl, 2-chloro-4-fluorophenyl,
2-chloro-6-fluorophenyl, 4-chloro-2-nitrophenyl,
6-chloro-2-nitrophenyl, 2,6-dibromophenyl, 2,3-dichlorophenyl,
2,5-dichlorophenyl, 3,4-dichlorophenyl, 2-difluoromethoxyphenyl,
3,5-dimethylphenyl, 2-ethoxycarbonylphenyl, 2-fluorophenyl,
2-iodophenyl, 4-isopropylphenyl, 2-methoxyphenyl, 4-methoxyphenyl,
2-methylphenyl, 3-methylphenyl, 4-methylphenyl,
5-methyl-2-nitrophenyl, 4-methylsulfonylphenyl, naphth-2-yl,
2-nitrophenyl, 3-nitrophenyl, 4-nitrophenyl,
2,3,4,5,6-pentafluorophenyl, phenyl, 2-trifluoromethoxyphenyl,
3-trifluoromethoxyphenyl, 4-trifluoromethoxyphenyl,
2-trifluoromethylphenyl, 3-trifluoromethylphenyl,
4-trifluoromethylphenyl, 2-trifluoromethylsulfanylphenyl,
4-trifluoromethylsulfanylphenyl, and the like.
[0027] "Bicycloaryl" means a bicyclic ring assembly containing the
number of ring carbon atoms indicated, wherein the rings are linked
by a single bond or fused and at least one of the rings comprising
the assembly is aromatic, and any (C.sub.1-6)alkylidene,
carbocyclic ketone, thioketone or iminoketone derivative thereof
(e.g., (C.sub.9-12)bicycloaryl includes biphenyl, cyclohexylphenyl,
1,2-dihydronaphthyl, 2,4-dioxo-1,2,3,4-tetrahydronaphthyl, indanyl,
indenyl, 1,2,3,4-tetrahydronaphthyl, and the like).
[0028] "Carbamoyl" means the radical --C(O)NH.sub.2. Unless
indicated otherwise, the compounds of the invention containing
carbamoyl moieties include protected derivatives thereof. Suitable
protecting groups for carbamoyl moieties include acetyl,
tert-butoxycarbonyl, benzyloxycarbonyl, and the like and both the
unprotected and protected derivatives fall within the scope of the
invention.
[0029] "Carbocyclic ketone derivative" means a derivative
containing the moiety --C(O)--.
[0030] "Carboxy" means the radical --C(O)OH. Unless indicated
otherwise, the compounds of the invention containing carboxy
moieties include protected derivatives thereof. Suitable protecting
groups for carboxy moieties include benzyl, tert-butyl, and the
like.
[0031] "Cycloalkyl" means a saturated or partially unsaturated,
monocyclic, fused bicyclic or bridged polycyclic ring assembly
containing the number of ring carbon atoms indicated, and any
(C.sub.1-6)alkylidene, carbocyclic ketone, thioketone or
iminoketone derivative thereof (e.g., (C.sub.3-10)cycloalkyl
includes cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl,
cyclohexenyl, 2,5-cyclohexadienyl, bicyclo[2.2.2]octyl,
adamantan-1-yl, decahydronaphthyl, oxocyclohexyl, dioxocyclohexyl,
thiocyclohexyl, 2-oxobicyclo[2.2.1]hept-1-yl, and the like).
[0032] "Cycloalkylene" means a divalent saturated or partially
unsaturated, monocyclic ring or bridged polycyclic ring assembly
containing the number of ring carbon atoms indicated, and any
carbocyclic ketone, thioketone or iminoketone derivative thereof.
For example, the instance wherein "R.sup.1 and R.sup.2 together
with the carbon atom to which both R.sup.1 and R.sup.2 are attached
form (C.sub.3-8)cycloalkylene" includes, but is not limited to, the
following: ##STR3##
[0033] "Disease" specifically includes any unhealthy condition of
an animal or part thereof and includes an unhealthy condition that
may be caused by, or incident to, medical or veterinary therapy
applied to that animal, i.e., the "side effects" of such
therapy.
[0034] "Halo" means fluoro, chloro, bromo or iodo.
[0035] "Halo-substituted alkyl", as an isolated group or part of a
larger group, means "alkyl" substituted by one or more "halo"
atoms, as such terms are defined in this Application.
Halo-substituted alkyl includes haloalkyl, dihaloalkyl,
trihaloalkyl, perhaloalkyl and the like (e.g. halo-substituted
(C.sub.1-3)alkyl includes chloromethyl, dichloromethyl,
difluoromethyl, trifluoromethyl, 2,2,2-trifluoroethyl,
perfluoroethyl, 2,2,2-trifluoro-1,1-dichloroethyl, and the
like).
[0036] "Heteroatom moiety" includes --N.dbd., --NR--, --O--, --S--
or --S(O).sub.2--, wherein R is hydrogen, (C.sub.1-6)alkyl or a
protecting group.
[0037] "Heterocycloalkylene" means cycloalkylene, as defined in
this Application, provided that one or more of the ring member
carbon atoms indicated, is replaced by heteroatom moiety selected
from --N.dbd., --NR--, --O--, --S-- or --S(O).sub.2--, wherein R is
hydrogen or (C.sub.1-6)alkyl. For example, the instance wherein
R.sup.1 and R.sup.2 together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form hetero(C.sub.3-8)cycloalkyl"
includes, but is not limited to, the following: ##STR4## in which R
is hydrogen, (C.sub.1-6)alkyl, or a protecting group.
[0038] "Heteroaryl" as a group or part of a group denotes an
optionally substituted aromatic monocyclic or multicyclic organic
moiety of about 5 to about 10 ring members in which one or more of
the ring members is/are element(s) other than carbon, for example
nitrogen, NR, oxygen or sulfur, wherein R is hydrogen,
(C.sub.1-6)alkyl, a protecting group or represents the free valence
which serves as the point of attachment to a ring nitrogen. For
example, optionally substituted hetero(C.sub.5-10)aryl as used in
this Application includes, but is not limited to,
4-amino-2-hydroxypyrimidin-5-yl, benzothiazol-2-yl,
1H-benzoimidazol-2-yl, 2-bromopyrid-5-yl, 5-bromopyrid-2-yl,
4-carbamoylthiazol-2-yl, 3-carboxypyrid-4-yl,
5-carboxy-2,6-dimethylpyrid-3-yl, 3,5-dimethylisoxazol-4-yl,
5-ethoxy-2,6-dimethylpyrid-3-yl, 5-fluoro-6-hydroxypyrimidin-4-yl,
fur-2-yl, fur-3-yl, 5-hydroxy-4,6-dimethylpyrid-3-yl,
8-hydroxy-5,7-dimethylquinolin-2-yl, 5-hydroxymethylisoxazol-3-yl,
3-hydroxy-6-methylpyrid-2-yl, 3-hydroxypyrid-2-yl,
1H-imidazol-2-yl, 1H-imidazol-4-yl, 1H-indol-3-yl, isothiazol-4-yl,
isoxazol-4-yl, 2-methylfur-3-yl, 5-methylfur-2-yl,
1-methyl-1H-imidazol-2-yl, 5-methyl-3H-imidazol-4-yl,
5-methylisoxazol-3-yl, 5-methyl-2H-pyrazol-3-yl,
3-methylpyrid-2-yl, 4-methylpyrid-2-yl, 5-methylpyrid-2-yl,
6-methylpyrid-2-yl, 2-methylpyrid-3-yl, 2-methylthiazol-4-yl,
5-nitropyrid-2-yl, 2H-pyrazol-3-yl, 3H-pyrazol-4-yl,
pyridazin-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl,
5-pyrid-3-yl-2H-[1,2,4]triazol-3-yl, pyrimidin-4-yl,
pyrimidin-5-yl, 1H-pyrrol-3-yl, quinolin-2-yl, 1H-tetrazol-5-yl,
thiazol-2-yl, thiazol-5-yl, thien-2-yl, thien-3-yl,
2H-[1,2,4]triazol-3-yl, 3H-[1,2,3]triazol-4-yl,
5-trifluoromethylpyrid-2-yl, and the like. Suitable protecting
groups include tert-butoxycarbonyl, benzyloxycarbonyl, benzyl,
4-methoxybenzyl, 2-nitrobenzyl, and the like. Optionally
substituted hetero(C.sub.5-10)aryl as used in this Application to
define R.sup.5 includes 1H-benzoimidazol-2-yl, pyrimidin-2-yl,
benzooxazol-2-yl, benzothiazol-2-yl, pyridazin-3-yl,
3-phenyl-[1,2,4]oxadiazol-5-yl, 3-ethyl-[1,2,4]oxadiazol-5-yl, and
the like.
[0039] "Heterobicycloaryl" means bicycloaryl, as defined in this
Application, provided that one or more of the ring carbon atoms
indicated are replaced by a heteroatom moiety selected from
--N.dbd., --NR--, --O-- or --S--, wherein R is hydrogen,
(C.sub.1-6)alkyl, a protecting group or represents the free valence
which serves as the point of attachment to a ring nitrogen, and any
carbocyclic ketone, thioketone or iminoketone derivative thereof.
For example, optionally substituted hetero(C.sub.8-10)bicycloaryl
as used in this Application includes, but is not limited to,
2-amino-4-oxo-3,4-dihydropteridin-6-yl, and the like. In general,
the term heterobicycloaryl as used in this Application includes,
for example, benzo[1,3]dioxol-5-yl,
3,4-dihydro-2H-[1,8]naphthyridinyl, 3,4-dihydro-2H-quinolinyl,
2,4-dioxo-3,4-dihydro-2H-quinazolinyl,
1,2,3,4,5,6-hexahydro[2,2']bipyridinylyl,
3-oxo-2,3-dihydrobenzo[1,4]oxazinyl, 5,6,7,8-tetrahydroquinolinyl,
and the like.
[0040] "Heterocycloalkyl" means cycloalkyl, as defined in this
Application, provided that one or more of the ring carbon atoms
indicated are replaced by a heteroatom moiety selected from
--N.dbd., --NR--, --O-- or --S--, wherein R is hydrogen,
(C.sub.1-6)alkyl, a protecting group or represents the free valence
which serves as the point of attachment to a ring nitrogen, and any
carbocyclic ketone, thioketone or iminoketone derivative thereof
(e.g., the term hetero(C.sub.5-10)cycloalkyl includes
imidazolidinyl, morpholinyl, piperazinyl, piperidyl, pyrrolidinyl,
pyrrolinyl, quinuclidinyl, and the like. A ketone derivative of
piperazinyl would be 3-oxo-piperazin-1-yl). Suitable protecting
groups include tert-butoxycarbonyl, benzyloxycarbonyl, benzyl,
4-methoxybenzyl, 2-nitrobenzyl, and the like. Both the unprotected
and protected derivatives fall within the scope of the
invention.
[0041] "Hydroxy" means the radical --OH. Unless indicated
otherwise, the compounds of the invention containing hydroxy
radicals include protected derivatives thereof. Suitable protecting
groups for hydroxy moieties include benzyl and the like.
[0042] "Iminoketone derivative" means a derivative containing the
moiety --C(NR)--, wherein R is hydrogen or (C.sub.1-6)alkyl.
[0043] "Isomers" mean compounds of Formula I having identical
molecular formulae but differ in the nature or sequence of bonding
of their atoms or in the arrangement of their atoms in space.
Isomers that differ in the arrangement of their atoms in space are
termed "stereoisomers". Stereoisomers that are not mirror images of
one another are termed "diastereomers" and stereoisomers that are
nonsuperimposable mirror images are termed "enantiomers" or
sometimes "optical isomers". A carbon atom bonded to four
nonidentical substituents is termed a "chiral center". A compound
with one chiral center has two enantiomeric forms of opposite
chirality is termed a "racemic mixture". A compound that has more
than one chiral center has 2.sup.n-1 enantiomeric pairs, where n is
the number of chiral centers. Compounds with more than one chiral
center may exist as ether an individual diastereomers or as a
mixture of diastereomers, termed a "diastereomeric mixture". When
one chiral center is present a stereoisomer may be characterized by
the absolute configuration of that chiral center. Absolute
configuration refers to the arrangement in space of the
substituents attached to the chiral center. Enantiomers are
characterized by the absolute configuration of their chiral centers
and described by the R- and S-sequencing rules of Cahn, Ingold and
Prelog. Conventions for stereochemical nomenclature, methods for
the determination of stereochemistry and the separation of
stereoisomers are well known in the art (e.g., see "Advanced
Organic Chemistry", 4th edition, March, Jerry, John Wiley &
Sons, New York, 1992). It is understood that the names and
illustration used in this Application to describe compounds of
Formula I are meant to be encompassed all possible stereoisomers.
Thus, for example, the name
N-[1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2-benzy-
lsulfonylmethyl-butyramide is meant to include
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide and
N--[(R)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide and any mixture, racemic or
otherwise, thereof.
[0044] "Ketone derivative" means a derivative containing the moiety
--C(O)--.
[0045] "Nitro" means the radical --NO.sub.2.
[0046] "Optional" or "optionally" or "may be" means that the
subsequently described event or circumstance may or may not occur,
and that the description includes instances where the event or
circumstance occurs and instances in which it does not. For
example, the phrase "wherein R.sup.3, R.sup.4 and R.sup.21 may be
substituted further by 1 to 5 radicals . . . " means that R.sup.3,
R.sup.4 and/or R.sup.21 may or may not be substituted in order to
fall within the scope of the invention.
[0047] "N-oxide derivatives" means derivatives of compounds of
Formula I in which nitrogens are in an oxidized state (i.e., O--N)
and which possess the desired pharmacological activity.
[0048] "Pathology" of a disease means the essential nature, causes
and development of the disease as well as the structural and
functional changes that result from the disease processes.
[0049] "Pharmaceutically acceptable" means that which is useful in
preparing a pharmaceutical composition that is generally safe,
non-toxic and neither biologically nor otherwise undesirable and
includes that which is acceptable for veterinary use as well as
human pharmaceutical use.
[0050] "Pharmaceutically acceptable salts" means salts of compounds
of Formula I which are pharmaceutically acceptable, as defined
above, and which possess the desired pharmacological activity. Such
salts include acid addition salts formed with inorganic acids such
as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid,
phosphoric acid, and the like; or with organic acids such as acetic
acid, propionic acid, hexanoic acid, heptanoic acid,
cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic
acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric
acid, tartaric acid, citric acid, benzoic acid,
o-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid,
methylsulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic
acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid,
p-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid,
p-toluenesulfonic acid, camphorsulfonic acid,
4-methylbicyclo[2.2.2]oct-2-ene-1-carboxylic acid, glucoheptonic
acid, 4,4'-methylenebis(3-hydroxy-2-ene-1-carboxylic acid),
3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic
acid, lauryl sulfuric acid, gluconic acid, glutamic acid,
hydroxynaphthoic acid, salicylic acid, stearic acid, muconic acid
and the like.
[0051] Pharmaceutically acceptable salts also include base addition
salts which may be formed when acidic protons present are capable
of reacting with inorganic or organic bases. Acceptable inorganic
bases include sodium hydroxide, sodium carbonate, potassium
hydroxide, aluminum hydroxide and calcium hydroxide. Acceptable
organic bases include ethanolamine, diethanolamine,
triethanolamine, tromethamine, N-methylglucamine and the like.
[0052] "Prodrug" means a compound which is convertible in vivo by
metabolic means (e.g. by hydrolysis) to a compound of Formula I.
For example an ester of a compound of Formula I containing a
hydroxy group may be convertible by hydrolysis in vivo to the
parent molecule. Alternatively an ester of a compound of Formula I
containing a carboxy group may be convertible by hydrolysis in vivo
to the parent molecule. Suitable esters of compounds of Formula I
containing a hydroxy group, are for example acetates, citrates,
lactates, tartrates, malonates, oxalates, salicylates, propionates,
succinates, fumarates, maleates,
methylene-bis-b-hydroxynaphthoates, gentisates, isethionates,
di-p-toluoyltartrates, methylsulphonates, ethanesulphonates,
benzenesulphonates, p-toluenesulphonates, cyclohexylsulphamates and
quinates. Suitable esters of compounds of Formula I containing a
carboxy group, are for example those described by F. J. Leinweber,
Drug Metab. Res., 1987, 18, page 379. An especially useful class of
esters of compounds of Formula I containing a hydroxy group, may be
formed from acid moieties selected from those described by
Bundgaard et al., J. Med. Chem., 1989, 32, page 2503-2507, and
include substituted (aminomethyl)-benzoates, for example,
dialkylamino-methylbenzoates in which the two alkyl groups may be
joined together and/or interrupted by an oxygen atom or by an
optionally substituted nitrogen atom, e.g. an alkylated nitrogen
atom, more especially (morpholino-methyl)benzoates, e.g. 3- or
4-(morpholinomethyl)benzoates, and
(4-alkylpiperazin-1-yl)benzoates, e.g. 3- or
4-(4-alkylpiperazin-1-yl)benzoates.
[0053] "Protected derivatives" means derivatives of compounds of
Formula I in which a reactive site or sites are blocked with
protecting groups. Protected derivatives of compounds of Formula I
are useful in the preparation of compounds of Formula I or in
themselves may be active cathepsin S inhibitors. A comprehensive
list of suitable protecting groups can be found in T. W. Greene,
Protecting Groups in Organic Synthesis, 3rd edition, John Wiley
& Sons, Inc. 1999.
[0054] "Therapeutically effective amount" means that amount which,
when administered to an animal for treating a disease, is
sufficient to effect such treatment for the disease.
[0055] "Thioketone derivative" means a derivative containing the
moiety --C(S)--.
[0056] "Treatment" or "treating" means any administration of a
compound of the present invention and includes:
(1) preventing the disease from occurring in an animal which may be
predisposed to the disease but does not yet experience or display
the pathology or symptomatology of the disease,
(2) inhibiting the disease in an animal that is experiencing or
displaying the pathology or symptomatology of the diseased (i.e.,
arresting further development of the pathology and/or
symptomatology), or
(3) ameliorating the disease in an animal that is experiencing or
displaying the pathology or symptomatology of the diseased (i.e.,
reversing the pathology and/or symptomatology).
Nomenclature:
[0057] The compounds of Formula I and the intermediates and
starting materials used in their preparation are named in
accordance with IUPAC rules of nomenclature in which the
characteristic groups have decreasing priority for citation as the
principle group as follows: acids, esters, amides, etc.
Alternatively, the compounds are named by AutoNom 4.0 (Beilstein
Information Systems, Inc.). For example, a compound of Formula I in
which R.sup.1 is hydrogen, R.sup.2 is propyl, R.sup.3 and R.sup.4
are each benzylsulfonylmethyl; that is, a compound having the
following structure: ##STR5## is named
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyl-
-sulfonylmethyl-propionamide; With reference to formula (I) above,
the following are particular and preferred groupings: X.sup.1 may
particularly represent --C(R.sup.1)(R.sup.2)X.sup.2 in which
R.sup.1 is hydrogen or (C.sub.1-6)alkyl and R.sup.2 is hydrogen,
--X.sup.4OR.sup.13 or --R.sup.15, in which within R.sup.15 any
aryl, heteroaryl, cycloalkyl or heterocycloalkyl may be substituted
with 1 to 3 radicals independently selected from (C.sub.1-6)alkyl,
cyano, halo, halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12, --X.sup.4
OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14 wherein X.sup.4 is a bond or
(C.sub.1-6)alkylene, R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl, R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl; and X.sup.2
is cyano, --CHO, --C(O)R.sup.5, --C(O)CF.sub.3,
--C(O)CF.sub.2CF.sub.2R.sup.9--CH.dbd.CHS(O).sub.2R.sup.5,
--C(O)CF.sub.2C(O)NR.sup.5R.sup.6, --C(O)C(O)NR.sup.5R.sup.6,
--C(O)C(O)OR.sup.5, --C(O)CH.sub.2OR.sup.5,
--C(O)CH.sub.2N(R.sup.6)SO.sub.2R.sup.5,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2OR.sup.6,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2NR.sup.6 or --C(O)C(O)R.sup.5;
wherein R.sup.5 is (C.sub.1-4)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.4-10)aryl(C.sub.0-6)alkyl,
(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl or
hetero(C.sub.4-10)cycloalkyl(C.sub.0-6)alkyl, R.sup.6 is hydrogen
or (C.sub.1-6)alkyl and R.sup.9 is halo. X.sup.1 may also
particularly represent --C(R.sup.1)(R.sup.2)X.sup.2 in which
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form (C.sub.3-8)cycloalkylene
or hetero(C.sub.3-8)cycloalkylene, in which the cycloalkylene or
the heterocycloalkylene is optionally substituted with 1 to 3
radicals independently selected from (C.sub.1-6)alkyl and hydroxy
and X.sup.2 is cyano, --CHO, --C(O)R.sup.5, --C(O)CF.sub.3,
--C(O)CF.sub.2CF.sub.2R.sup.9--CH.dbd.CHS(O).sub.2R.sup.5,
--C(O)CF.sub.2C(O)NR.sup.5R.sup.6, --C(O)C(O)NR.sup.5R.sup.6,
--C(O)C(O)OR.sup.5, --C(O)CH.sub.2OR.sup.5,
--C(O)CH.sub.2N(R.sup.6)SO.sub.2R.sup.5,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2OR.sup.6,
--C(O)C(O)N(R.sup.6)(CH.sub.2).sub.2NR.sup.6 or --C(O)C(O)R.sup.5.
X.sup.1 may also particularly represent --X.sup.3, wherein X.sup.3
is a group of formula (b): ##STR6## in which n is 1 or 2, z is 0 or
1, X.sup.6 is O or NR.sup.11, wherein R.sup.11 is selected from
hydrogen (C.sub.1-6)alkyl, --X.sup.4C(O)OR.sup.12,
--X.sup.4OC(O)R.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4S(O).sub.2R.sup.12, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15 and --X.sup.4C(O)OR.sup.15, in which X.sup.4
is a bond or (C.sub.1-6)alkylene; R.sup.12 at each occurrence
independently is hydrogen or (C.sub.1-6)alkyl; R.sup.13 is
hydrogen, (C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and
R.sup.15 is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; within X.sup.3 any
cycloalkyl or heterocycloalkyl group may be optionally substituted
by substituted further by 1 to 5 radicals independently selected
from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, nitro,
--X.sup.4NR.sup.12R.sup.12, --X.sup.4NR.sup.12C(O)R.sup.12,
--X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4NR.sup.12C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12C(NR.sup.12)NR.sup.12R.sup.12,
--X.sup.4OR.sup.13, --X.sup.4SR.sup.13, --X.sup.4C(O)OR.sup.12,
--X.sup.4C(O)R.sup.13, --X.sup.4OC(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4S(O).sub.2NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13,
--X.sup.4P(O)(OR.sup.12)OR.sup.12,
--X.sup.4OP(O)(OR.sup.12)OR.sup.12, --X.sup.4S(O)R.sup.14 and
--X.sup.4S(O).sub.2R.sup.14 and/or 1 radical selected from
--R.sup.15, --OR.sup.15, --SR.sup.15, --S(O)R.sup.15,
--S(O).sub.2R.sup.15, --C(O)R.sup.15, --C(O)OR.sup.15,
--OC(O)R.sup.15, --NR.sup.15R.sup.12, --NR.sup.12C(O)R.sup.15,
--NR.sup.12C(O)OR.sup.15, --C(O)NR.sup.15R.sup.12,
--S(O).sub.2NR.sup.15R.sup.12, --NR.sup.12S(O).sub.2R.sup.15,
--NR.sup.12C(O)NR.sup.15R.sup.12 and
--NR.sup.12C(NR.sup.12)NR.sup.15R.sup.12 wherein X.sup.4 is a bond
or (C.sub.1-6)alkylene, R.sup.12 at each occurrence independently
is hydrogen or (C.sub.1-6)alkyl, R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl; R.sup.3 and R.sup.4
may particularly represent --C(R.sup.16)(R.sup.17)X.sup.7, wherein
R.sup.16 and R.sup.17 are hydrogen, (C.sub.1-6)alkyl or fluoro, or
R.sup.16 is hydrogen and R.sup.17 is hydroxy and X.sup.7 is
selected from --X.sup.4SR.sup.13, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12, --R.sup.15, --X.sup.4OR.sup.15,
--X.sup.4SR.sup.15, --X.sup.4S(O).sub.2R.sup.15,
--X.sup.4C(O)R.sup.15 and --X.sup.4C(O)NR.sup.15R.sup.12, wherein
X.sup.4 is a bond or (C.sub.1-6)alkylene, R.sup.12 at each
occurrence independently is hydrogen or (C.sub.1-6)alkyl, R.sup.13
is hydrogen, (C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl,
R.sup.14 is (C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl
and R.sup.15 is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl;
[0058] within R.sup.3 and R.sup.4 may be substituted further by 1-5
radicals independently selected from (C.sub.1-6)alkyl, cyano, halo,
halo-substituted(C.sub.1-4)alkyl, --X.sup.4NR.sup.12C(O)OR.sup.12,
--X.sup.4 OR.sup.13, --X.sup.4C(O)OR.sup.12, --X.sup.4C(O)R.sup.13,
--X.sup.4C(O)NR.sup.12R.sup.12,
--X.sup.4NR.sup.12S(O).sub.2R.sup.13 and
--X.sup.4S(O).sub.2R.sup.14 and one of R.sup.3 or R.sup.4 may be
further substituted with 1 radical selected from --R.sup.15 and
--X.sup.4OR.sup.15, wherein X.sup.4 is a bond or
(C.sub.1-6)alkylene, R.sup.12 at each occurrence independently is
hydrogen or (C.sub.1-6)alkyl, R.sup.13 is hydrogen,
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl, R.sup.14 is
(C.sub.1-6)alkyl or halo-substituted(C.sub.1-6)alkyl and R.sup.15
is (C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
hetero(C.sub.3-10)cycloalkyl(C.sub.0-3)alkyl,
(C.sub.6-10)aryl(C.sub.0-6)alkyl,
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl,
(C.sub.9-12)bicycloaryl(C.sub.0-6)alkyl or
hetero(C.sub.8-12)bicycloaryl(C.sub.0-6)alkyl.
[0059] R.sup.3 and R.sup.4 groups include allylsulfonylmethyl,
benzylcarbamoyl-methyl, benzyl, benzylsulfanylmethyl,
2-benzenesulfonyl-ethyl, benzenesulfonylmethyl,
2-benzo[1,3]dioxol-5-yl-2-oxo-ethyl,
2-benzo[b]thiophen-2-yl-2-oxo-ethyl,
biphenyl-2-ylmethylsulfonylmethyl,
biphenyl-4-ylmethyl-sulfonylmethyl, biphenyl-3-ylmethyl,
biphenyl-4-ylmethyl, 2-biphenyl-4-yl-2-oxo-ethyl,
3,5-bis-trifluoromethyl-benzyl-sulfonylmethyl, 3-bromo-benzyl,
2-oxo-2-pyrrolidin-1-yl-ethyl, 2-bromo-benzyl-sulfonylmethyl,
(butyl-methyl-carbamoyl)-methyl, 4-tert-butyl-benzylsulfonylmethyl,
(3-carbamoyl-phenylcarbamoyl)-methyl,
(4-carbamoyl-phenylcarbamoyl)-methyl,
4-carboxy-benzylsulfonylmethyl,
2-(3-chloro-benzo[b]thiophen-2-yl)-2-oxo-ethyl,
2-(4'-chloro-biphenyl-4-yl)-2-oxo-ethyl,
3-chloro-2-fluoro-benzylsulfonylmethyl,
2-chloro-benzylsulfonylmethyl, 3-chloro-benzylsulfonylmethyl,
4-chloro-benzylsulfonylmethyl, 2-(4-chloro-phenyl)-2-oxo-ethyl,
5-chloro-thiophen-2-ylmethylsulfonylmethyl,
2-(3-chloro-thiophen-2-yl)-2-oxo-ethyl,
2-chloro-5-trifluoromethylbenzylsulfonylmethyl,
(cyanomethyl-methyl-carbamoyl)-methyl, cyclohexylcarbamoylmethyl,
2-cyclohexyl-ethanesulfonyl, cyclohexylmethylsulfonylmethyl,
2-cyclohexyl-ethyl, cyclohexylmethyl, 2-cyano-benzylsulfonylmethyl,
cyclopropylmethylsulfonylmethyl, 3-cyano-benzylsulfonylmethyl,
4-cyano-benzylsulfonylmethyl, 2,5-dichloro-benzylsulfonylmethyl,
2,6-dichloro-benzylsulfonylmethyl,
3,4-dichloro-benzylsulfonylmethyl,
2-[2-(1,1-difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-[3-(1,1-difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-[4-(1,1-difluoro-methoxy)-benzenesulfonyl]-ethyl,
2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl,
3-(1,1-difluoro-methoxy)-benzylsulfonylmethyl,
4-(1,1-difluoro-methoxy)-benzylsulfonylmethyl,
2,3-difluoro-benzylsulfonylmethyl,
2,4-difluoro-benzylsulfonylmethyl,
2,5-difluoro-benzylsulfonylmethyl,
2,6-difluoro-benzylsulfonylmethyl,
3,4-difluoro-benzylsulfonylmethyl,
3,4-dichloro-benzyl-sulfonylmethyl,
2-(3,4-difluoro-phenyl)-2-oxo-ethyl,
2-(3,4-dimethoxy-phenyl)-2-oxo-ethyl, 4-dimethylcarbamoylmethyl,
3,5-dimethyl-isoxazol-4-ylmethylsulfonylmethyl,
3,5-dimethyl-benzylsulfonylmethyl,
2-(3-fluoro-4-methoxy-phenyl)-2-oxo-ethyl,
2-fluoro-3-methyl-benzylsulfonylmethyl,
2-fluoro-benzylsulfonylmethyl, 3-fluoro-benzylsulfonylmethyl,
4-fluoro-benzylsulfonylmethyl, 2-(4-fluoro-phenyl)-2-oxo-ethyl,
4-fluoro-2-trifluoromethoxy-benzyl-sulfonylmethyl,
2-fluoro-3-trifluoromethylbenzylsulfonylmethyl,
2-fluoro-4-trifluoromethylphenyl-methylsulfonylmethyl,
2-fluoro-5-trifluoromethylbenzyl-sulfonylmethyl,
2-fluoro-6-trifluoromethyl-benzylsulfonylmethyl,
4-fluoro-3-trifluoromethyl-benzylsulfonylmethyl,
2-(4-hydroxy-phenyl)-2-oxo-ethyl, isobutylsulfanylmethyl,
isopropylcarbamoyl-methyl,
2-(4-methylsulfonylamino-phenyl)-2-oxo-ethyl,
2-(4-methylsulfonyl-piperazin-1-yl)-2-oxo-ethyl,
5-methyl-2-oxo-hexyl, 2-methoxy-benzyl-sulfonylmethyl,
4-methoxy-benzylsulfonylmethyl, 2-(4-methoxy-phenyl)-2-oxo-ethyl,
3-methyl-benzylsulfonylmethyl, 2-methyl-propane-1-sulfonyl,
2-(5-methyl-thiophen-2-yl)-2-oxo-ethyl,
2-methyl-thiazol-4-yl-methylsulfonylmethyl
5-methyl-thiophene-2-sulfonylmethyl, naphthalen-2-yl,
naphthalen-2-ylmethylsulfonylmethyl, 2-naphthalen-2-yl-2-oxo-ethyl,
naphthalene-2-sulfonylmethyl, 2-morpholin-4-yl-2-oxo-ethyl,
2-oxo-2-piperidin-1-yl-ethyl, 2-oxo-2-(4-phenoxy-phenyl)-ethyl,
2-oxo-2-phenyl-ethyl, 2-oxo-2-pyrrolidin-1-yl-ethyl,
2-oxo-2-thiophen-2-yl-ethyl, 2-oxo-2-thiophen-3-yl-ethyl,
2-oxo-2-p-tolyl-ethyl, 2-oxo-2-(4-trifluoromethoxy-phenyl)-ethyl,
1-oxy-pyridin-2-ylmethylsulfonylmethyl, phenylcarbamoylmethyl,
2-benzylsulfonyl-ethyl, benzylsulfonylmethyl,
4-benzylsulfonylmethyl, 2-phenylsulfanyl-ethyl,
prop-2-ene-1-sulfonylmethyl, pyridin-3-ylcarbamoylmethyl,
pyridin-4-ylcarbamoylmethyl, 2-(pyridine-2-sulfonyl)-ethyl,
2-(pyridine-4-sulfonyl)-ethyl, pyridin-2-ylmethylsulfonylmethyl,
pyridin-3-ylmethylsulfonylmethyl, pyridin-4-ylmethylsulfonylmethyl,
(5,6,7,8-tetrahydro-naphthalen-1-ylcarbamoyl)-methyl,
tetrahydropyran-4-yloxymethyl, thiophene-2-sulfonylmethyl,
o-tolylmethylsulfonylmethyl, m-tolylmethylsulfonylmethyl,
p-tolylmethylsulfonylmethyl,
2-(2-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-(3-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-(4-trifluoromethoxy-benzenesulfonyl)-ethyl,
2-trifluoromethoxy-benzylsulfanylmethyl,
2-trifluoromethoxy-benzylsulfonylmethyl,
3-trifluoromethoxy-benzylsulfonylmethyl,
4-trifluoromethoxy-benzylsulfonylmethyl,
2-trifluoromethyl-benzylsulfanylmethyl,
2-trifluoromethyl-benzylsulfonylmethyl,
3-trifluoromethyl-benzylsulfonylmethyl,
4-trifluoromethyl-benzylsulfonylmethyl,
2,3,4-trifluoro-benzylsulfonylmethyl,
2,3,5-trifluoro-benzylsulfonylmethyl,
2,4,5-trifluoro-benzylsulfonylmethyl,
2,4,6-trifluoro-benzylsulfonylmethyl and
2,5,6-trifluoro-benzylsulfonylmethyl. Preferred R.sup.3 and R.sup.4
groups include allylsulfonylmethyl, benzylsulfanylmethyl,
3-cyano-benzylsulfonylmethyl, cyclohexylmethyl,
2-difluoromethoxy-benzylsulfonylmethyl, isobutylsulfanylmethyl,
(2-methyl-thiazol-4-yl)-methylsulfonylmethyl,
2-morpholin-4-yl-2-oxo-ethyl, 2-oxo-2-piperidin-1-yl-ethyl,
2-oxo-2-pyrrolidin-1-yl-ethyl, benzylsulfonylmethyl,
tetrahydropyran-4-yloxymethyl, and
3-trifluoromethyl-benzylsulfonylmethyl. Particularly preferred
R.sup.3 and R.sup.4 groups include benzylsulfanylmethyl,
2-difluoromethoxy-benzylsulfonylmethyl,
2-morpholin-4-yl-2-oxo-ethyl and benzylsulfonylmethyl.
[0060] It is to be understood that this invention covers all
appropriate combinations of the particular and preferred groupings
referred to herein unless otherwise stated
[0061] A particular preferred group of compounds of the invention
are compounds of formula I(a): ##STR7## wherein R.sup.1, R.sup.2
and X.sup.7 are as hereinbefore described, and their corresponding
N-oxides, and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof; and the
pharmaceutically acceptable salts and solvates (e.g. hydrates) of
such compounds of formula I(a) and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. Compounds of formula I(a) in which
R.sup.1 is hydrogen and R.sup.2 is: [0062] (i) hydrogen; [0063]
(ii) --X.sup.4OR.sup.13, e.g., --CH.sub.2--O--CH.sub.3 or
--CH.sub.2--CH.sub.2--O--CH.sub.3; [0064] (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g., thien-2-yl or
5-methylfuran-2-yl; [0065] (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl,
e.g., phenethyl; [0066] (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl
or n-butyl] are preferred. Compounds of formula I(a) in which
R.sup.1 and R.sup.2 are both methyl are also preferred. Compounds
of formula I(a) in which R.sup.1 and R.sup.2 taken together with
the carbon atom to which both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g., cyclopropyl, or
hetero(C.sub.3-8)cycloalkylene, e.g., tetrahydropyran-4-yl and
N-methylpiperidin-4-yl, are also preferred. Compounds of formula
I(a) in which X.sup.7 is: [0067] (i) --R.sup.15 or --R.sup.13,
e.g., ##STR8## [0068] or --CH.dbd.CH.sub.2, respectively; [0069]
(ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.,
##STR9## [0070] (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g., ##STR10##
[0071] (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which
X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g., ##STR11## [0072] (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g., ##STR12## are preferred.
Compounds of formula I(a) in which X.sup.7 represents ##STR13## are
especially preferred.
[0073] A preferred group of compounds of the invention are
compounds of formula I(a) in which: R.sup.1 is hydrogen and R.sup.2
is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
X.sup.7 is (i) --R.sup.13 or --R.sup.15, e.g. ##STR14## or
--CH.dbd.CH.sub.2, respectively, (ii) --X.sup.4C(O)R.sup.15 in
which X.sup.4 is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR15## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR16##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR17## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR18## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof.
[0074] A further preferred group of compounds of the invention are
compounds of formula I(a) in which: R.sup.1 and R.sup.2 are both
methyl; X.sup.7 is (i) --R.sup.15, e.g. ##STR19## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.12a in which X.sup.4 is
a direct bond and R.sup.12a is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR20## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR21##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR22## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g.
--SO.sub.2--CH.sub.2--CH.dbd.CH.sub.2, ##STR23## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(a) in which: R.sup.1 and
R.sup.2 taken together with the carbon atom to which both R.sup.1
and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene, e.g.
cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; X.sup.7 is (i)
--R.sup.15 or --R.sup.13, e.g. ##STR24## or --CH.dbd.CH.sub.2,
respectively, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR25## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR26##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR27## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR28## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. Another particular group of compounds
of the invention are compounds of formula I(b): ##STR29## wherein
R.sup.1, R.sup.2 and X.sup.7 are as hereinbefore described, and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds of formula I(b) and their
N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof. Compounds of
formula I(b) in which R.sup.1 is hydrogen and R.sup.2 is: [0075]
(vi) hydrogen; [0076] (vii) --X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --H.sub.2--CH.sub.2--O--CH.sub.3; [0077]
(viii) hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl; [0078] (ix) (C.sub.5-10)aryl(C.sub.0-6)alkyl,
e.g. phenethyl; [0079] (x) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl
or n-butyl are preferred. Compounds of formula I(b) in which
R.sup.1 and R.sup.2 are both methyl are also preferred.
[0080] Compounds of formula I(b) in which R.sup.1 and R.sup.2 taken
together with the carbon atom to which both R.sup.1 and R.sup.2 are
attached form (C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred.
Compounds of formula I(b) in which R.sup.7 and R.sup.8 together
form oxo are preferred.
[0081] Compounds of formula I(b) in which R.sup.5 is
1H-benzoimidazol-2-yl, pyrimidin-2-yl, benzooxazol-2-yl,
benzothiazol-2-yl, pyridazin-3-yl, 3-phenyl-[1,2,4]oxadiazol-5-yl,
3-ethyl-[1,2,4]oxadiazol-5-yl are preferred.
Compounds of formula I(a) in which X.sup.7 is:
[0082] (vi) --R.sup.15 or --R.sup.13, e.g. ##STR30## [0083] (vii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR31## [0084] (viii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR32## [0085]
(ix) --X.sup.4SR.sup.13 or --R.sup.15 in which X.sup.4 is a direct
bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR33## [0086]
(x) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR34## are
preferred. Compounds of formula I(b) in which X.sup.7 represents
##STR35## are especially preferred. A preferred group of compounds
of the invention are compounds of formula I(b) in which: R.sup.1 is
hydrogen and R.sup.2 is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
R.sup.7 and R.sup.8 together form oxo; R.sup.5 is
1H-benzoimidazol-2-yl, pyrimidin-2-yl, benzooxazol-2-yl,
benzothiazol-2-yl, pyridazin-3-yl, 3-phenyl-[1,2,4]oxadiazol-5-yl,
3-ethyl-[1,2,4]oxadiazol-5-yl; X7 is (i) --R.sup.15, e.g. ##STR36##
or --CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4
is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR37## (iii)
(iii) --R.sup.4OR.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR38## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which
X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR39## or (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR40## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(b) in which: R.sup.1 and
R.sup.2 are both methyl; R.sup.7 and R.sup.8 together form oxo;
R.sup.5 is 1H-benzoimidazol-2-yl, pyrimidin-2-yl, benzooxazol-2-yl,
benzothiazol-2-yl, pyridazin-3-yl, 3-phenyl-[1,2,4]oxadiazol-5-yl,
3-ethyl-[1,2,4]oxadiazol-5-yl; X7 is (i) --R.sup.14a, e.g.
##STR41## or --CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which
X.sup.4 is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR42## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR43## or
--X.sup.4SR.sup.15 in which X.sup.4 is a direct bond or
(C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR44## or (v)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR45## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(b) in which: R.sup.1 and
R.sup.2 taken together with the carbon atom to which both R.sup.1
and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene, e.g.
cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; R.sup.7 and
R.sup.8 together form oxo; R.sup.5 is 1H-benzoimidazol-2-yl,
pyrimidin-2-yl, benzooxazol-2-yl, benzothiazol-2-yl,
pyridazin-3-yl, 3-phenyl-[1,2,4]oxadiazol-5-yl,
3-ethyl-[1,2,4]oxadiazol-5-yl; X.sup.7 is (i) --R.sup.15 or
--R.sup.13, e.g. ##STR46## or --CH.dbd.CH.sub.2, respectively, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR47## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR48## in which X.sup.4 is a direct bond or
(C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR49## or (v)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR50## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. Another particular group of compounds of the
invention are compounds of formula I(c): ##STR51## wherein R.sup.1,
R.sup.2 and X.sup.7 are as hereinbefore described, and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds of formula I(c) and their N-oxides and
their prodrugs, and their protected derivatives, individual isomers
and mixtures of isomers thereof. Compounds of formula I(c) in which
R.sup.1 is hydrogen and R.sup.2 is: [0087] (xi) hydrogen; [0088]
(xii) --X.sup.4OR.sup.13, e.g. CH.sub.2--O--CH.sub.3 or
--CH.sub.2--CH.sub.2--O--CH.sub.3; [0089] (xiii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl; [0090] (xiv) (C.sub.5-10)aryl(C.sub.0-6)alkyl,
e.g. phenethyl; [0091] (xv) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl
or n-butyl are preferred. Compounds of formula I(c) in which
R.sup.1 and R.sup.2 are both methyl are also preferred. Compounds
of formula I(c) in which R.sup.1 and R.sup.2 taken together with
the carbon atom to which both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred. Compounds of formula
I(c) in which R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g.
phenyl are preferred. Compounds of formula I(a) in which X.sup.7
is: [0092] (xi) --R.sup.15 or --R.sup.13, e.g. ##STR52## or
--CH.dbd.CH.sub.2, respectively; [0093] (xii) --X.sup.4C(O)R.sup.15
in which X.sup.4 is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR53## [0094]
(xiii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR54## [0095] (xiv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in
which X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR55## [0096] (xv) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. --SO.sub.2--CH.sub.2--
##STR56## are preferred. Compounds of formula I(c) in which X.sup.7
represents ##STR57## are especially preferred. A preferred group of
compounds of the invention are compounds of formula I(c) in which:
R.sup.1 is hydrogen and R.sup.2 is (i) hydrogen, (ii)
X.sup.4OR.sup.13, e.g. --CH.sub.2--O--CH.sub.3 or
--CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; X.sup.7
is (i) --R.sup.15 or --R.sup.13, e.g. ##STR58## or
--CH.dbd.CH.sub.2, respectively, (ii) --X.sup.4C(O)R.sup.15 in
which X.sup.4 is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR59## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. --O--
##STR60## or --X.sup.4SR.sup.15 in which X.sup.4 is a direct bond
or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR61## or (v)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR62## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(c) in which: R.sup.1 and
R.sup.2 are both methyl; R.sup.5 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; X.sup.7 is (i)
--R.sup.15 or --R.sup.13, e.g. ##STR63## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond, R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR64##
(iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR65## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which
X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR66## or (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.13 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR67## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(c) in which: R.sup.1 and
R.sup.2 taken together with the carbon atom to which both R.sup.1
and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene, e.g.
cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; R.sup.5 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; X.sup.7 is (i)
--R.sup.15 or --R.sup.13, e.g. ##STR68## or --CH.dbd.CH.sub.2,
respectively, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR69## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR70##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR71## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR72## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. Another particular group of compounds
of the invention are compounds of formula I(d): ##STR73## wherein
R.sup.1, R.sup.2 and X.sup.7 are as hereinbefore described, and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds of formula I(d) and their
N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof. Compounds of
formula I(d) in which R.sup.1 is hydrogen and R.sup.2 is: [0097]
(xvi) hydrogen; [0098] (xvii) --X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3;
[0099] (xviii) hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
thien-2-yl or 5-methylfuran-2-yl; [0100] (xix)
(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. phenethyl; [0101] (xx)
(C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl are preferred.
Compounds of formula I(d) in which R.sup.1 and R.sup.2 are both
methyl are also preferred. Compounds of formula I(d) in which
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred. Compounds of formula
I(d) in which R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g.
phenyl are preferred. Compounds of formula I(d) in which R.sup.6 is
hydrogen are preferred. Compounds of formula I(a) in which X.sup.7
is: [0102] (xvi) --R.sup.15 or --R.sup.13, e.g. ##STR74## [0103]
(xvii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR75## [0104] (xviii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR76## [0105]
(xix) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is
a direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR77##
[0106] (xx) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR78## are preferred.
Compounds of formula I(c) in which X.sup.7 represents
##STR79## are especially preferred. A preferred group of compounds
of the invention are compounds of formula I(d) in which: R.sup.1 is
hydrogen and R.sup.2 is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; R.sup.6
is hydrogen; X7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR80## or
--CH.dbd.CH.sub.2, respectively, (ii) --X.sup.4C(O)R.sup.15 in
which X.sup.4 is a direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR81## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR82##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkyl, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR83## or (v)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR84## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(d) in which: R.sup.1 and
R.sup.2 are both methyl; R.sup.5 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; R.sup.6 is hydrogen;
X.sup.7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR85## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR86## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR87##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR88## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR89## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. A further preferred group of compounds
of the invention are compounds of formula I(d) in which: R.sup.1
and R.sup.2 taken together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene,
e.g. cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; R.sup.5 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. phenyl; R.sup.6 is hydrogen;
X.sup.7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR90## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR91## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR92##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR93## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR94## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. Another particular group of compounds
of the invention are compounds of formula I(e): ##STR95## wherein
R.sup.1, R.sup.2 and X.sup.7 are as hereinbefore described, and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds of formula I(e) and their
N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof. Compounds of
formula I(e) in which R.sup.1 is hydrogen and R.sup.2 is: [0107]
(xxi) hydrogen; [0108] (xxii) --X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3;
[0109] (xxiii) hetero(C.sub.5--O)aryl(C.sub.0-6)alkyl, e.g.
thien-2-yl or 5-methylfuran-2-yl; [0110] (xxiv)
(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. phenethyl; [0111] (xxv)
(C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl are preferred.
Compounds of formula I(e) in which R.sup.1 and R.sup.2 are both
methyl are also preferred. Compounds of formula I(e) in which
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred. Compounds of formula
I(e) in which R.sup.5 and R.sup.6 are (C.sub.1-4)alkyl, e.g. methyl
are preferred. Compounds of formula I(a) in which X.sup.7 is:
[0112] (xxi) --R.sup.15 or --R.sup.13, e.g. ##STR96## [0113] or
--CH.dbd.CH.sub.2, respectively; [0114] (xxii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR97## [0115] (xxiii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR98## [0116]
(xxiv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is
a direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR99##
[0117] (xxv) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR100## are preferred.
Compounds of formula I(e) in which X.sup.7 represents ##STR101##
are especially preferred. A preferred group of compounds of the
invention are compounds of formula I(e) in which: R.sup.1 is
hydrogen and R.sup.2 is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
R.sup.5 is (C.sub.1-4)alkyl, e.g. methyl; X.sup.7 is (i) --R.sup.15
or --R.sup.13, e.g. ##STR102## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
--C(O) ##STR103## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR104## (iv)
--X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR105##
or (v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15
in which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR106## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. A further preferred group of compounds
of the invention are compounds of formula I(e) in which: R.sup.1
and R.sup.2 are both methyl; R.sup.5 is (C.sub.1-4)alkyl, e.g.
methyl; X.sup.7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR107## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR108## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR109##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR110##
or (v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15
in which X.sup.4 is a direct bond and R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR111##
and their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. A further preferred group of compounds
of the invention are compounds of formula I(e) in which: R.sup.1
and R.sup.2 taken together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene,
e.g. cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; R.sup.5 is
(C.sub.1-4)alkyl, e.g. methyl; X.sup.7 is (i) --R.sup.15 or
--R.sup.13, e.g. ##STR112## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR113## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR114## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in
which X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR115## or (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR116## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. Another particular group of compounds of the
invention are compounds of formula I(f): ##STR117## wherein
R.sup.1, R.sup.2 and X.sup.7 are as hereinbefore described, and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds of formula I(f) and their
N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof. Compounds of
formula I(f) in which R.sup.1 is hydrogen and R.sup.2 is: [0118]
(xxvi) hydrogen; [0119] (xxvii) --X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or CH.sub.2--CH.sub.2--O--CH.sub.3; [0120]
(xxviii) hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl; [0121] (xxix) (C.sub.5-10)aryl(C.sub.0-6)alkyl,
e.g. phenethyl; [0122] (xxx) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl
or n-butyl are preferred. Compounds of formula I(f) in which
R.sup.1 and R.sup.2 are both methyl are also preferred. Compounds
of formula I(f) in which R.sup.1 and R.sup.2 taken together with
the carbon atom to which both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred. Compounds of formula
I(f) in which R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g.
benzyl are preferred. Compounds of formula I(f) in which R.sup.6 is
hydrogen are preferred. Compounds of formula I(f) in which X.sup.7
is: [0123] (xxvi) --R.sup.15 or --R.sup.13, e.g. ##STR118## [0124]
or --CH.dbd.CH.sub.2; [0125] (xxvii) --X.sup.4C(O)R.sup.15 in which
X.sup.4 is a direct bond, R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR119##
[0126] (xxviii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR120## [0127] (xxix) --X.sup.4SR.sup.13 or
--X.sup.4SR.sup.15 in which X.sup.4 is a direct bond or
(C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR121## [0128] (xxx)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR122## are preferred.
Compounds of formula I(f) in which X.sup.7 represents ##STR123##
are especially preferred. A preferred group of compounds of the
invention are compounds of formula I(f) in which: R.sup.1 is
hydrogen and R.sup.2 is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.1-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
R.sup.5 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. benzyl; R.sup.6
is hydrogen; X7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR124## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR125## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR126##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR127##
or (v)
--X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15 in which
X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15
is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR128## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(f) in which: R.sup.1 and
R.sup.2 are both methyl; R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. benzyl; R.sup.6 is hydrogen;
X7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR129## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR130## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR131##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkylene, R.sup.13 is (C.sub.1-6)alkyl
and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR132##
or (v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.15
in which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR133## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. A further preferred group of compounds
of the invention are compounds of formula I(f) in which: R.sup.1
and R.sup.2 taken together with the carbon atom to which both
R.sup.1 and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene,
e.g. cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; R.sup.5 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. benzyl; R.sup.6 is hydrogen;
X7 is (i) --R.sup.15 or --R.sup.13, e.g. ##STR134## or
--CH.dbd.CH.sub.2, (ii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR135## (iii)
--X.sup.4OR.sup.15 in which X.sup.4 is a direct bond and R.sup.15
is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR136##
(iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which X.sup.4 is a
direct bond or (C.sub.1-6)alkyl, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR137## or
(v) --X.sup.4S(O).sub.2R.sup.13 or --X.sup.4S(O).sub.2R.sup.13 in
which X.sup.4 is a direct bond, R.sup.13 is (C.sub.1-6)alkyl and
R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR138## and
their corresponding N-oxides, and their prodrugs, and their
protected derivatives, individual isomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and their N-oxides and their
prodrugs, and their protected derivatives, individual isomers and
mixtures of isomers thereof. Another particular group of compounds
of the invention are compounds of formula I(g): ##STR139## wherein
R.sup.1, R.sup.2 and X7 are as hereinbefore described, and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds of formula I(g) and their N-oxides and
their prodrugs, and their protected derivatives, individual isomers
and mixtures of isomers thereof. Compounds of formula I(g) in which
R.sup.1 is hydrogen and R.sup.2 is: [0129] (xxxi) hydrogen; [0130]
(xxxii) --X.sup.4OR.sup.13, e.g. --CH.sub.2--O--CH.sub.3 or
--CH.sub.2--CH.sub.2--O--CH.sub.3; [0131] (xxxiii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl; [0132] (xxxiv)
(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. phenethyl; [0133] (xxxv)
(C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl are preferred.
Compounds of formula I(g) in which R.sup.1 and R.sup.2 are both
methyl are also preferred. Compounds of formula I(g) in which
R.sup.1 and R.sup.2 taken together with the carbon atom to which
both R.sup.1 and R.sup.2 are attached form
(C.sub.3-8)cycloalkylene, e.g. cyclopropyl or
hetero(C.sub.3-8)cycloalkylene, e.g. tetrahydropyran-4-yl and
N-methylpiperidin-4-yl are also preferred. Compounds of formula
I(g) in which X.sup.3 is 2-methyl-4-oxo-tetrahydro-furan-3-yl,
2-ethyl-4-oxo-tetrahydro-furan-3-yl,
4-oxo-1-(1-phenyl-methanoyl)-pyrrolidin-3-yl or
(S)-2-Acetoxy-4-oxo-azetidin-3-yl are preferred. Compounds of
formula I(g) in which X7 is: [0134] (xxxi) --R.sup.15 or
--R.sup.13, e.g. ##STR140## [0135] or --CH.dbd.CH.sub.2; [0136]
(xxxii) --X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR141## [0137] (xxxiii) --X.sup.4OR.sup.15 in which X.sup.4 is a
direct bond and R.sup.15 is
hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g. ##STR142##
[0138] (xxxiv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in which
X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR143## [0139] (xxxv) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR144## are preferred.
Compounds of formula I(g) in which X7 represents ##STR145## are
especially preferred. A preferred group of compounds of the
invention are compounds of formula I(g) in which: R.sup.1 is
hydrogen and R.sup.2 is (i) hydrogen, (ii) X.sup.4OR.sup.13, e.g.
--CH.sub.2--O--CH.sub.3 or --CH.sub.2--CH.sub.2--O--CH.sub.3, (iii)
hetero(C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g. thien-2-yl or
5-methylfuran-2-yl, (iv) (C.sub.5-10)aryl(C.sub.0-6)alkyl, e.g.
phenethyl or (v) (C.sub.1-6)alkyl, e.g. ethyl, n-propyl or n-butyl;
X.sup.3 is 2-methyl-4-oxo-tetrahydro-furan-3-yl,
2-ethyl-4-oxo-tetrahydro-furan-3-yl,
4-oxo-1-(1-phenyl-methanoyl)-pyrrolidin-3-yl or
(S)-2-acetoxy-4-oxo-azetidin-3-yl; X7 is (i) --R.sup.15 or
--R.sup.13, e.g. ##STR146## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR147## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR148## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in
which X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR149## or (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR150## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(g) in which: R.sup.1 and
R.sup.2 are both methyl; X.sup.3 is
2-methyl-4-oxo-tetrahydro-furan-3-yl,
2-ethyl-4-oxo-tetrahydro-furan-3-yl,
4-oxo-1-(1-phenyl-methanoyl)-pyrrolidin-3-yl or
(S)-2-acetoxy-4-oxo-azetidin-3-yl; X7 is (i) --R.sup.15 or
--R.sup.13, e.g. ##STR151## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR152## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR153## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in
which X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR154## or --X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is
a direct bond, R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR155## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof. A further preferred group of compounds of the
invention are compounds of formula I(g) in which: R.sup.1 and
R.sup.2 taken together with the carbon atom to which both R.sup.1
and R.sup.2 are attached form (i) (C.sub.3-8)cycloalkylene, e.g.
cyclopropyl or (ii) hetero(C.sub.3-8)cycloalkylene, e.g.
tetrahydropyran-4-yl and N-methylpiperidin-4-yl; X.sup.3 is
2-methyl-4-oxo-tetrahydro-furan-3-yl,
2-ethyl-4-oxo-tetrahydro-furan-3-yl,
4-oxo-1-(1-phenyl-methanoyl)-pyrrolidin-3-yl or
(S)-2-Acetoxy-4-oxo-azetidin-3-yl; X.sup.7 is (i) --R.sup.15 or
--R.sup.13, e.g. ##STR156## or --CH.dbd.CH.sub.2, (ii)
--X.sup.4C(O)R.sup.15 in which X.sup.4 is a direct bond and
R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl, e.g.
##STR157## (iii) --X.sup.4OR.sup.15 in which X.sup.4 is a direct
bond and R.sup.15 is hetero(C.sub.3-10)cycloalkyl(C.sub.0-6)alkyl,
e.g. ##STR158## (iv) --X.sup.4SR.sup.13 or --X.sup.4SR.sup.15 in
which X.sup.4 is a direct bond or (C.sub.1-6)alkylene, R.sup.13 is
(C.sub.1-6)alkyl and R.sup.15 is (C.sub.6-10)aryl(C.sub.0-6)alkyl,
e.g. ##STR159## or (v) --X.sup.4S(O).sub.2R.sup.13 or
--X.sup.4S(O).sub.2R.sup.15 in which X.sup.4 is a direct bond,
R.sup.13 is (C.sub.1-6)alkyl and R.sup.15 is
(C.sub.6-10)aryl(C.sub.0-6)alkyl, e.g. ##STR160## and their
corresponding N-oxides, and their prodrugs, and their protected
derivatives, individual isomers and mixtures of isomers thereof;
and the pharmaceutically acceptable salts and solvates (e.g.
hydrates) of such compounds and their N-oxides and their prodrugs,
and their protected derivatives, individual isomers and mixtures of
isomers thereof.
[0140] Reference to the preferred embodiments set forth above is
meant to include all combinations of particular and preferred
groups unless stated otherwise.
[0141] Reference to the preferred embodiments set forth above is
meant to include all combinations of particular and preferred
groups.
[0142] Particular compounds of the invention are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the carbon atom (C*) of a cyano group, the acyl carbon
atom (C*) of one of the fragments (D2-D6 or D8-D56) depicted in
Table 4, the vinyl carbon atom (C*) of the fragment (D7) depicted
in Table 4 or the acyl carbon atom (C*) of one of the fragments
(E1-E14) depicted in Table 5.
[0143] Particular compounds of formula I(a) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the carbon atom (C*) of a cyano group depicted in Table
4.
[0144] Particular compounds of formula (1b) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the acyl carbon atom (C*) of one of the fragments (D2,
D4-D6, D9-D11, D18-D24, D45-D46 or D48-D56) depicted in Table
4.
[0145] Particular compounds of formula I(c) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the vinyl carbon atom (C*) of the fragment (D7) depicted
in Table 4.
[0146] Particular compounds of formula I(d) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the acyl carbon atom (C*) of the fragment (D17) depicted
in Table 4.
[0147] Particular compounds of formula I(e) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the acyl carbon atom (C*) of the fragment (D15) depicted
in Table 4.
[0148] Particular compounds of formula I(f) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the acyl carbon atom (C*) of one of the fragments (D8,
D25-D44) depicted in Table 4.
[0149] Particular compounds of formula I(g) are selected from the
compounds formed by: joining the methylene carbon atom (CH.sub.2*)
of one of the fragments (A1 to A116) shown in Table 1 to the carbon
atom (*CH*) of one of the fragments (B1 to B115) shown in Table 2;
joining the carbon atom (*CH*) of one of the fragments (B1 to B115)
shown in Table 2 to the acyl carbon atom (C*) of one of the
fragments (C1 to C13) depicted in Table 3; and joining the
methylene carbon atom (CH.sub.2*) of fragment D1, the carbon atom
(*CH*) of one of the fragments (C2, C6-C11 or C13) or the tertiary
carbon atom (C*) of one of the fragments (C2-C5 or C12) depicted in
Table 3 to the acyl carbon atom (C*) of one of the fragments
(E1-E14) depicted in Table 5. TABLE-US-00001 TABLE 1 A1 ##STR161##
A2 ##STR162## A3 ##STR163## A4 ##STR164## A5 ##STR165## A6
##STR166## A7 ##STR167## A8 ##STR168## A9 ##STR169## A10 ##STR170##
A11 ##STR171## A12 ##STR172## A13 ##STR173## A14 ##STR174## A15
##STR175## A16 ##STR176## A17 ##STR177## A18 ##STR178## A19
##STR179## A20 ##STR180## A21 ##STR181## A22 ##STR182## A23
##STR183## A24 ##STR184## A25 ##STR185## A26 ##STR186## A27
##STR187## A28 ##STR188## A29 ##STR189## A30 ##STR190## A31
##STR191## A32 ##STR192## A33 ##STR193## A34 ##STR194## A35
##STR195## A36 ##STR196## A37 ##STR197## A38 ##STR198## A39
##STR199## A40 ##STR200## A41 ##STR201## A42 ##STR202## A43
##STR203## A44 ##STR204## A45 ##STR205## A46 ##STR206## A47
##STR207## A48 ##STR208## A49 ##STR209## A50 ##STR210## A51
##STR211## A52 ##STR212## A53 ##STR213## A54 ##STR214## A55
##STR215## A56 ##STR216## A57 ##STR217## A58 ##STR218## A59
##STR219## A60 ##STR220## A61 ##STR221## A62 ##STR222## A63
##STR223## A64 ##STR224## A65 ##STR225## A66 ##STR226## A67
##STR227## A68 ##STR228## A69 ##STR229## A70 ##STR230## A71
##STR231## A72 ##STR232## A73 ##STR233## A74 ##STR234## A75
##STR235## A76 ##STR236## A77 ##STR237## A78 ##STR238## A79
##STR239## A80 ##STR240## A81 ##STR241## A82 ##STR242## A83
##STR243## A84 ##STR244## A85 ##STR245## A86 ##STR246## A87
##STR247## A88 ##STR248## A89 ##STR249## A90 ##STR250## A91
##STR251## A92 ##STR252## A93 ##STR253## A94 ##STR254## A95
##STR255## A96 ##STR256## A97 ##STR257## A98 ##STR258## A99
##STR259## A100 ##STR260## A101 ##STR261## A102 ##STR262## A103
##STR263## A104 ##STR264## A105 ##STR265## A106 ##STR266## A107
##STR267## A108 ##STR268## A109 ##STR269## A110 ##STR270## A111
##STR271## A112 ##STR272## A113 ##STR273## A114 ##STR274## A115
##STR275## A116 ##STR276##
[0150] TABLE-US-00002 TABLE 2 B1 ##STR277## B2 ##STR278## B3
##STR279## B4 ##STR280## B5 ##STR281## B6 ##STR282## B7 ##STR283##
B8 ##STR284## B9 ##STR285## B10 ##STR286## B11 ##STR287## B12
##STR288## B13 ##STR289## B14 ##STR290## B15 ##STR291## B16
##STR292## B17 ##STR293## B18 ##STR294## B19 ##STR295## B20
##STR296## B21 ##STR297## B22 ##STR298## B23 ##STR299## B24
##STR300## B25 ##STR301## B26 ##STR302## B27 ##STR303## B28
##STR304## B29 ##STR305## B30 ##STR306## B31 ##STR307## B32
##STR308## B33 ##STR309## B34 ##STR310## B35 ##STR311## B36
##STR312## B37 ##STR313## B38 ##STR314## B39 ##STR315## B40
##STR316## B41 ##STR317## B42 ##STR318## B43 ##STR319## B44
##STR320## B45 ##STR321## B46 ##STR322## B47 ##STR323## B48
##STR324## B49 ##STR325## B50 ##STR326## B51 ##STR327## B52
##STR328## B53 ##STR329## B54 ##STR330## B55 ##STR331## B56
##STR332## B57 ##STR333## B58 ##STR334## B59 ##STR335## B60
##STR336## B61 ##STR337## B62 ##STR338## B63 ##STR339## B64
##STR340## B65 ##STR341## B66 ##STR342## B67 ##STR343## B68
##STR344## B69 ##STR345## B70 ##STR346## B71 ##STR347## B72
##STR348## B73 ##STR349## B74 ##STR350## B75 ##STR351## B76
##STR352## B77 ##STR353## B78 ##STR354## B79 ##STR355## B80
##STR356## B81 ##STR357## B82 ##STR358## B83 ##STR359## B84
##STR360## B85 ##STR361## B86 ##STR362## B87 ##STR363## B88
##STR364## B89 ##STR365## B90 ##STR366## B91 ##STR367## B92
##STR368## B93 ##STR369## B94 ##STR370## B95 ##STR371## B96
##STR372## B97 ##STR373## B98 ##STR374## B99 ##STR375## B100
##STR376## B101 ##STR377## B102 ##STR378## B103 ##STR379## B104
##STR380## B105 ##STR381## B106 ##STR382## B107 ##STR383## B108
##STR384## B109 ##STR385## B110 ##STR386## B111 ##STR387## B112
##STR388## B113 ##STR389## B114 ##STR390## B115 ##STR391##
[0151] TABLE-US-00003 TABLE 3 C1 ##STR392## C2 ##STR393## C3
##STR394## C4 ##STR395## C5 ##STR396## C6 ##STR397## C7 ##STR398##
C8 ##STR399## C9 ##STR400## C10 ##STR401## C11 ##STR402## C12
##STR403## C13 ##STR404##
[0152] TABLE-US-00004 TABLE 4 D1 ##STR405## D2 ##STR406## D3
##STR407## D4 ##STR408## D5 ##STR409## D6 ##STR410## D7 ##STR411##
D8 ##STR412## D9 ##STR413## D10 ##STR414## D11 ##STR415## D12
##STR416## D13 ##STR417## D14 ##STR418## D15 ##STR419## D16
##STR420## D17 ##STR421## D18 ##STR422## D19 ##STR423## D20
##STR424## D21 ##STR425## D22 ##STR426## D23 ##STR427## D24
##STR428## D25 ##STR429## D26 ##STR430## D27 ##STR431## D28
##STR432## D29 ##STR433## D30 ##STR434## D31 ##STR435## D32
##STR436## D33 ##STR437## D34 ##STR438## D35 ##STR439## D36
##STR440## D37 ##STR441## D38 ##STR442## D39 ##STR443## D40
##STR444## D41 ##STR445## D42 ##STR446## D43 ##STR447## D44
##STR448## D45 ##STR449## D46 ##STR450## D47 ##STR451## D48
##STR452## D49 ##STR453## D50 ##STR454## D51 ##STR455## D52
##STR456## D53 ##STR457## D54 ##STR458## D55 ##STR459## D56
##STR460##
[0153] TABLE-US-00005 TABLE 5 E1 ##STR461## E2 ##STR462## E3
##STR463## E4 ##STR464## E5 ##STR465## E6 ##STR466## E7 ##STR467##
E8 ##STR468## E9 ##STR469## E10 ##STR470## E11 ##STR471## E12
##STR472## E13 ##STR473## E14 ##STR474## E15 ##STR475## E16
##STR476## E17 ##STR477##
[0154] Particularly preferred compounds of "A", "B", "C" and "D" or
"A", "B" and "E" combinations are illustrated in table 6:
TABLE-US-00006 LENGTHY TABLE REFERENCED HERE
US20070049594A1-20070301-T00001 Please refer to the end of the
specification for access instructions.
[0155] Thus, for example, in table 6 the compound denoted as
A2-B4-C6-D8 is the product of the combination of group A2 in Table
1 and B4 in Table 2 and C6 in Table 3 and D8 in Table 4, namely
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide: ##STR478## Particular compounds of
the invention are: [0156]
3-biphenyl-3-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide;
[0157]
3-biphenyl-4-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide-
; [0158]
3-(3-bromo-phenyl)-N-cyanomethyl-2-benzylsulfonylmethyl-propion-
amide; [0159]
N-cyanomethyl-3-(3-cyano-benzylsulfonyl)-2-benzylsulfonyl-methyl-propiona-
mide; [0160]
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfanylmethyl]-3-benzylsu-
lfanyl-propionamide; [0161]
N-cyanomethyl-3-(2-trifluoromethyl-benzylsulfanyl)-2-(2-trifluoro-methyl--
benzylsulfanylmethyl)-propionamide; [0162]
N-cyanomethyl-3-isobutylsulfanyl-2-isobutylsulfanylmethyl-propionamide;
[0163]
N-cyanomethyl-4-phenylsulfanyl-2-(2-phenylsulfanyl-ethyl)-butyram-
ide; [0164]
N-cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfanyl]-2-[2-(1,1-diflu-
oro-methoxy)-benzylsulfanylmethyl]-propionamide; [0165]
3-benzylsulfanyl-2-benzylsulfanylmethyl-N-cyanomethyl-propionamide;
[0166]
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3--
benzylsulfonyl-propionamide; [0167]
N-cyanomethyl-3-(2-trifluoromethyl-benzylsulfonyl)-2-(2-trifluoromethyl-b-
enzylsulfonylmethyl)-propionamide; [0168]
4-benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N-cyanomethyl-butyramide;
[0169]
N-cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfonyl]-2-[2-(1-
,1-difluoro-methoxy)-benzylsulfonylmethyl]-propionamide; [0170]
N-cyanomethyl-3-benzylsulfonyl-2-benzylsulfonylmethyl-propionamide;
[0171]
N-cyanomethyl-3-(2-methyl-propane-1-sulfonyl)-2-(2-methyl-propane-
-1-sulfonylmethyl)-propionamide; [0172]
N-cyanomethyl-3-(2-methyl-thiazol-4-ylmethylsulfonyl)-2-benzyl-sulfonylme-
thyl-propionamide; [0173]
3-biphenyl-3-yl-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzyl-sulfonyl-
methyl]-propionamide; [0174]
(3'-{2-(cyanomethyl-carbamoyl)-3-[2-(1,1-difluoro-methoxy)-benzyl-sulfony-
l]-propyl}-biphenyl-4-yl)-carbamic acid ethyl ester; [0175]
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-(4'-met-
hylsulfonylamino-biphenyl-3-yl)-propionamide; [0176]
3-(3-bromo-phenyl)-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-phenyl-methy-
lsulfonylmethyl]-propionamide; [0177]
N-cyanomethyl-2-((E)-3-phenyl-allyl)-3-benzylsulfonyl-propionamide;
[0178]
N-cyanomethyl-3-benzylsulfonyl-2-(3-phenyl-propyl)-propionamide;
[0179]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl--
2-benzylsulfonylmethyl-propionamide; [0180]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-(2-trifluoromethyl-benz-
ylsulfonyl)-2-(2-trifluoromethyl-benzylsulfonylmethyl)-propionamide;
[0181]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-(2-methoxy-ben-
zenesulfonyl)-2-[2-(2-methoxy-benzenesulfonyl)-ethyl]-butyramide;
[0182]
4-Benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N--[(S)-1-(1-benzooxazol-2--
yl-methanoyl)-butyl]-butyramide; [0183]
(R)--N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-2-cyclohexylmethyl-3-
-benzylsulfonyl-propionamide; [0184]
N--[(S)-1-(1-benzothiazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo--
2-benzylsulfonylmethyl-butyramide; [0185]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-cyclohexyl-2-cyclohexyl-
methyl-propionamide; [0186]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-isobutylsulfanyl-2-isob-
utylsulfanylmethyl-propionamide; [0187]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfanyl-2-benzyl-
sulfanylmethyl-propionamide; [0188]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-4-phenylsulfanyl-2-(2-phe-
nylsulfanyl-ethyl)-butyramide; [0189]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide; [0190]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide; [0191]
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,-
4]oxadiazol-5-yl)-methanoyl]-propyl}-butyramide; [0192]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-2-[2-(1,1-difluoro-methox-
y)-benzylsulfonylmethyl]-3-benzylsulfonyl-propionamide; [0193]
4-Morpholin-4-yl-4-oxo-N-[1-(2-oxo-2-phenyl-acetyl)-pentyl]-2-benzylsulfo-
nylmethyl-butyramide; [0194]
N-(1,1-Dimethyl-2-oxazolo[4,5-b]pyridin-2-yl-2-oxo-ethyl)-4-morpholin-4-y-
l-4-oxo-2-benzylsulfonylmethyl-butyramide; [0195]
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-
-2-benzylsulfonylmethyl-butyramide; [0196]
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl-
-methyl-4-piperidin-1-yl-butyramide; [0197]
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl-
-methyl-4-pyrrolidin-1-yl-butyramide; [0198]
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-morpholin-4-
-yl-4-oxo-2-benzylsulfonylmethyl-butyramide; [0199]
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-piperidin-1-yl-butyramide; [0200]
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-pyrrolidin-1-yl-butyramide; [0201]
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadi-
azole-2-carbonyl)-propyl]-butyramide; [0202]
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-piperidin-1-yl-butyramide; [0203]
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-pyrrolidin-1-yl-butyramide; [0204]
4-Morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-
-benzylsulfonylmethyl-butyramide; [0205]
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-piperidin-1-yl-butyramide; [0206]
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-pyrrolidin-1-yl-butyramide; [0207]
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide; [0208]
4-Oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-N-[1-(5-pyridin-4-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide; [0209]
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4]oxadiazole-2-car-
bonyl)-propyl]-4-pyrrolidin-1-yl-butyramide; [0210]
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-3-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide; [0211]
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pip-
eridin-1-yl-butyramide; [0212]
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyr-
rolidin-1-yl-butyramide; [0213]
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-y-
l-4-oxo-butyramide; [0214]
2-Cyclohexylmethyl-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbon-
yl)-propyl]-4-oxo-butyramide; [0215]
2-Cyclohexylmethyl-N-[1-(5-ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-m-
orpholin-4-yl-4-oxo-butyramide; [0216]
N-(2-Benzooxazol-2-yl-1-methoxymethyl-2-oxo-ethyl)-2-(2-difluoromethoxy-b-
enzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide; [0217]
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-(2-cyclohexyl-ethyl)-4-morpholin-
-4-yl-4-oxo-butyramide; [0218]
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-ca-
rbonyl)-propyl]-4-oxo-butyramide; [0219]
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5-phenyl-[1,3,4]oxadi-
azole-2-carbonyl)-propyl]-butyramide; [0220]
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5-
-phenyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-butyramide; [0221]
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-N-[1-(5-ethyl-[1,3,4]oxadiazol-
e-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-butyramide; [0222]
N-[1-(Benzooxazole-2
carbonyl)-propyl]-2-(2-difluoromethoxy-benzyl-sulfonylmethyl)-4-morpholin-
-4-yl-4-oxo-butyramide; [0223]
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid, [0224]
1-(benzooxazole-2-carbonyl)-propyl]-amide; [0225]
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(5-phenyl-1,2,4-o-
xadiazole-3-carbonyl)-propyl]-butyramide; [0226]
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid, [0227]
(S)-1-(5-phenyl-[1,2,4]oxadiazole-3-carbonyl)-propyl]-amide; [0228]
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N--[(S)-1-(5-phenyl-1,2,4-o-
xadiazole-3-carbonyl)-propyl]-butyramide; [0229]
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-phenyl-1,2,4-o-
xadiazole-5-carbonyl)-propyl]-butyramide; [0230]
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-butyramide; [0231]
N-(1,1-Dimethyl-2-oxazol-2-yl-2-oxo-ethyl)-4-morpholin-4-yl-4-oxo-2-benzy-
lsulfonylmethyl-butyramide; [0232]
N-4-Isopropyl-N-1-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-2-benzylsulfon-
ylmethyl-succinamide; [0233]
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole-
-2-carbonyl)-3-phenyl-propyl]-4-oxo-butyramide; [0234]
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole-2-ca-
rbonyl)-3-phenyl-propyl]-4-oxo-butyramide; [0235]
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-N-[1-(oxazole-2-carbon-
yl)-3-phenyl-propyl]-4-oxo-butyramide; [0236]
N-[1-(Benzooxazole-2-carbonyl)-butyl]-2-benzylsulfonyl-3-(tetrahydro-pyra-
n-4-yloxymethyl)-propionamide; [0237]
N-[1-(Benzooxazole-2-carbonyl)-butyl]-3-ethanesulfonyl-2-(tetrahydro-pyra-
n-4-yloxymethyl)-propionamide; [0238]
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-cyclopropylmethylsulfonyl-methy-
l-4-morpholin-4-yl-4-oxo-butyramide; [0239]
2-Cyclopropylmethylsulfonylmethyl-N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-o-
xadiazol-5-yl)-methyl]-propyl}-4-morpholin-4-yl-4-oxo-butyramide;
[0240]
N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-2-(-
2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide;
[0241] 2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
{(S)-1-[(R)-hydroxy-3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-amide;
[0242]
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-
-1-(3-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide;
[0243]
2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-
-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide; [0244]
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid, [0245]
(S)-1-(3-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl}-amide; [0246]
N-[(1S)-1-(Benzooxazol-2-yl-hydroxy-methyl)-3-phenyl-propyl]-2-cyclopropy-
lmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyramide; [0247]
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid, [0248] 1-(benzoxazole-2-carbonyl)-propyl]-amide; [0249]
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo--
ethyl)-pentanoic acid, 1-(benzoxazole-2-carbonyl)-propyl]-amide;
[0250]
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-cyclopropyl]-4-oxo-2-benzylsul-
fonyl methyl-butyramide; [0251]
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide [0252]
N-(3-benzenesulfonyl-1-phenethyl-allyl)-3-benzylsulfonyl-2-benzylsulfonyl-
methyl-propionamide; [0253]
N-(3-benzenesulfonylamino-2-oxo-propyl)-4-morpholin-4-yl-4-oxo-2-benzylsu-
lfonylmethyl-butyramide; [0254]
(S)-2,2-difluoro-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoy-
lamino)-3-oxo-hexanoic acid dimethylamide; [0255]
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide; [0256]
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide; [0257]
3-Hydroxy-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)--
azepane-1-carboxylic acid tert-butyl ester; [0258]
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)-
-3-hydroxy-azepane-1-carboxylic acid tert-butyl ester; [0259]
3-Hydroxy-4-[2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-
-butyrylamino]-azepane-1-carboxylic acid tert-butyl ester; [0260]
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azep-
ane-1-carboxylic acid tert-butyl ester; [0261]
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)-
-3-oxo-azepane-1-carboxylic acid tert-butyl ester; [0262]
4-[2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyrylam-
ino]-3-oxo-azepane-1-carboxylic acid tert-butyl ester; [0263]
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-4-morpholin-4-yl-4-oxo-2-benzylsu-
lfonylmethyl-butyramide; [0264]
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-(2-methyl-propane-1-sulfonylmet-
hyl)-4-morpholin-4-yl-4-oxo-butyramide; [0265]
3-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-4-oxo-pyrr-
olidine-1-carboxylic acid tert-butyl ester; [0266]
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azep-
ane-1-carboxylic acid benzyl ester; [0267] acetic acid
(2S,3S)-3-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoylamino)-4-
-oxo-azetidin-2-yl ester; and their corresponding N-oxides, and
their prodrugs, and their protected derivatives, individual isomers
and mixtures of isomers thereof; and the pharmaceutically
acceptable salts and solvates (e.g. hydrates) of such compounds and
their N-oxides and their prodrugs, and their protected derivatives,
individual isomers and mixtures of isomers thereof. Preferred
compounds of the invention are:-- [0268]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide (compound denoted as A64-B4-C11-D6),
(Compound 1); [0269]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-(2-trifluoromethyl-benz-
ylsulfonyl)-2-(2-trifluoromethyl-benzylsulfonylmethyl)-propionamide,
(compound denoted as A69-B32-C11-D6), (Compound 2); [0270]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-pentyl]-4-(2-methoxy-benzenesulf-
onyl)-2-[2-(2-methoxy-benzenesulfonyl)-ethyl]-butyramide, (compound
denoted as A64-B85-C11-D6), (Compound 3); [0271]
4-benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N--[(S)-1-(1-benzooxazol-2--
yl-methanoyl)-butyl]-butyramide, (compound denoted as
A4-B6-C11-D6), (Compound 4); [0272]
(R)--N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-2-cyclohexylmethyl-3-
-benzylsulfonyl-propionamide, (Compound 5); [0273]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-isobutylsulfanyl-2-isob-
utylsulfanylmethyl-propionamide, (compound denoted as
A68-B79-C11-D6), (Compound 8); [0274]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfanyl-2-benzyl-
sulfanylmethyl-propionamide, (compound denoted as A64-B85-C11-D6),
(Compound 9); [0275]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-4-phenylsulfanyl-2-(2-phe-
nylsulfanyl-ethyl)-butyramide, (compound denoted as A70-B80-C6-D6),
(Compound 10); [0276]
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-4-morphol-
in-4-yl-4-oxo-butyramide, (compound denoted as A2-B39-C11-D1),
(Compound 25); [0277]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide, (compound denoted as
A2-B4-C6-D6), (Compound 29);
[0278]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-pentyl]-4-morpholin-4-yl-
-4-oxo-2-benzylsulfonylmethyl-butyramide, (compound denoted as
A2-B4-C9-D6), (Compound 30); [0279]
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide, (compound denoted as A2-B4-C6-D8),
(Compound 32); [0280]
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide, (compound denoted as A13-B4-C9-D7),
(Compound 38); [0281]
N-(3-Benzenesulfonyl-1-phenethyl-allyl)-3-benzylsulfonyl-2-benzylsulfonyl-
methyl-propionamide, (compound denoted as A13-B4-C10-D7), (Compound
39); [0282]
N-cyanomethyl-3-(3-cyano-benzylsulfonyl)-2-benzylsulfonyl-methyl--
propionamide, (compound denoted as A89-B4-C11-D1), (Compound 40);
[0283]
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,-
4]oxadiazol-5-yl)-methanoyl]-propyl}-butyramide, (compound denoted
as A2-B4-C6-D10), (Compound 41); [0284]
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-benzylsu-
lfonyl-propionamide, (compound denoted as A13-B39-C1-D1), (Compound
48); [0285]
N-cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfonyl]-2-[2-(1-
,1-difluoro-methoxy)-benzylsulfonylmethyl]-propionamide, (compound
denoted as A5-B39-C1-D1), (Compound 51); [0286]
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide, (compound denoted as A13-B4-C6-D8),
(Compound 53); [0287]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-2-[2-(1,1-difluoro-methox-
y)-benzylsulfonylmethyl]-3-benzylsulfonyl-propionamide, (compound
denoted as A13-B39-C11-D6), (Compound 54); [0288] acetic acid
(2S,3S)-3-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoylamino)-4-
-oxo-azetidin-2-yl ester, (compound denoted as A2-B4-E4), (Compound
58); [0289]
N-cyanomethyl-3-(2-methyl-thiazol-4-ylmethylsulfonyl)-2-benzyl-su-
lfonylmethyl-propionamide, (compound denoted as A114-B4-C1-D1),
(Compound 59);
[0290] and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual stereoisomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof.
[0291] Especially preferred compounds of the invention are:--
[0292]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide (compound denoted as A64-B4-C11-D6),
(Compound 1); [0293]
4-benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N--[(S)-1-(1-benzooxazol-2--
yl-methanoyl)-butyl]-butyramide, (compound denoted as
A4-B6-C11-D6), (Compound 4); [0294]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide (compound denoted as A2-B4-C6-D6),
(Compound 29); [0295]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-pentyl]-4-morpholin-4-yl-4-oxo-2-
-benzylsulfonylmethyl-butyramide, (compound denoted as
A2-B4-C9-D6), (Compound 30); [0296]
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide, (compound denoted as A2-B4-C6-D8),
(Compound 32); [0297]
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide, (compound denoted as A13-B4-C9-D7),
(Compound 38); [0298]
N-(3-Benzenesulfonyl-1-phenethyl-allyl)-3-benzylsulfonyl-2-benzylsulfonyl-
methyl-propionamide, (compound denoted as A13-B4-C10-D7), (Compound
39); [0299] 4-morpholin-4-yl
4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,4]oxadiazol-5-yl)-
-methanoyl]-propyl}-butyramide, (compound denoted as A2-B4-C6-D10),
(Compound 41); [0300]
N--[(S)-1-(1-benzylcarbamoyl-methanoyl)-propyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide, (compound denoted as A13-B4-C6-D8),
(Compound 53); [0301]
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-2-[2-(1,1-difluoro-methox-
y)-benzylsulfonylmethyl]-3-benzylsulfonyl-propionamide, (compound
denoted as A13-B39-C11-D6), (Compound 54);
[0302] and the N-oxide derivatives, prodrug derivatives, protected
derivatives, individual stereoisomers and mixtures of isomers
thereof; and the pharmaceutically acceptable salts and solvates
(e.g. hydrates) of such compounds and the N-oxide derivatives,
prodrug derivatives, protected derivatives, individual isomers and
mixtures of isomers thereof.
Pharmacology and Utility:
[0303] The compounds of the invention are selective inhibitors of
cathepsin S and, as such, are useful for treating diseases in which
cathepsin S activity contributes to the pathology and/or
symptomatology of the disease. For example, the compounds of the
invention are useful in treating autoimmune disorders, including,
but not limited to, juvenile onset diabetes, multiple sclerosis,
pemphigus vulgaris, Graves' disease, myasthenia gravis, systemic
lupus erythemotasus, rheumatoid arthritis and Hashimoto's
thyroiditis, allergic disorders, including, but not limited to,
asthma, and allogeneic immune responses, including, but not limited
to, organ transplants or tissue grafts.
[0304] Cathepsin S also is implicated in disorders involving
excessive elastolysis, such as chronic obstructive pulmonary
disease (e.g., emphysema), bronchiolitis, excessive airway
elastolysis in asthma and bronchitis, pneumonities and
cardiovascular disease such as plaque rupture and atheroma.
Cathepsin S is implicated in fibril formation and, therefore,
inhibitors of cathepsins S are of use in treatment of systemic
amyloidosis.
[0305] The cysteine protease inhibitory activities of the compounds
of the invention can be determined by methods known to those of
ordinary skill in the art. Suitable in vitro assays for measuring
protease activity and the inhibition thereof by test compounds are
known. Typically, the assay measures protease-induced hydrolysis of
a peptide-based substrate. Details of assays for measuring protease
inhibitory activity are set forth in Examples 69, 70, 71 and 72,
infra.
Administration and Pharmaceutical Compositions:
[0306] In general, compounds of Formula I will be administered in
therapeutically effective amounts via any of the usual and
acceptable modes known in the art, either singly or in combination
with one or more therapeutic agents. A therapeutically effective
amount may vary widely depending on the severity of the disease,
the age and relative health of the subject, the potency of the
compound used and other factors. For example, therapeutically
effective amounts of a compound of Formula I may range from about 1
micrograms per kilogram body weight (.mu.g/kg) per day to about 1
milligram per kilogram body weight (mg/kg) per day, typically from
about 10 .mu.g/kg/day to about 0.1 mg/kg/day. Therefore, a
therapeutically effective amount for a 80 kg human patient may
range from about 100 .mu.g/day to about 100 mg/day, typically from
about 1 .mu.g/day to about 10 mg/day. In general, one of ordinary
skill in the art, acting in reliance upon personal knowledge and
the disclosure of this Application, will be able to ascertain a
therapeutically effective amount of a compound of Formula I for
treating a given disease.
[0307] The compounds of Formula I can be administered as
pharmaceutical compositions by one of the following routes: oral,
systemic (e.g., transdermal, intranasal or by suppository) or
parenteral (e.g., intramuscular, intravenous or subcutaneous).
Compositions can take the form of tablets, pills, capsules,
semisolids, powders, sustained release formulations, solutions,
suspensions, elixirs, aerosols, or any other appropriate
composition and are comprised of, in general, a compound of Formula
I in combination with at least one pharmaceutically acceptable
excipient. Acceptable excipients are non-toxic, aid administration,
and do not adversely affect the therapeutic benefit of the active
ingredient. Such excipient may be any solid, liquid, semisolid or,
in the case of an aerosol composition, gaseous excipient that is
generally available to one of skill in the art.
[0308] Solid pharmaceutical excipients include starch, cellulose,
talc, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk,
silica gel, magnesium stearate, sodium stearate, glycerol
monostearate, sodium chloride, dried skim milk, and the like.
Liquid and semisolid excipients may be selected from water,
ethanol, glycerol, propylene glycol and various oils, including
those of petroleum, animal, vegetable or synthetic origin (e.g.,
peanut oil, soybean oil, mineral oil, sesame oil, and the like).
Preferred liquid carriers, particularly for injectable solutions,
include water, saline, aqueous dextrose and glycols.
[0309] The amount of a compound of Formula I in the composition may
vary widely depending upon the type of formulation, size of a unit
dosage, kind of excipients and other factors known to those of
skill in the art of pharmaceutical sciences. In general, a
composition of a compound of Formula I for treating a given disease
will comprise from 0.01% w to 10% w, preferably 0.3% w to 1% w, of
active ingredient with the remainder being the excipient or
excipients. Preferably the pharmaceutical composition is
administered in a single unit dosage form for continuous treatment
or in a single unit dosage form ad libitum when relief of symptoms
is specifically required. Representative pharmaceutical
formulations containing a compound of Formula I are described in
Example 73.
Chemistry:
Processes for Making Compounds of Formula I:
[0310] Compounds of the invention may be prepared by the
application or adaptation of known methods, by which is meant
methods used heretofore or described in the literature, for example
those described by R. C. Larock in Comprehensive Organic
Transformations, VCH publishers, 1989.
[0311] In the reactions described hereinafter it may be necessary
to protect reactive functional groups, for example hydroxy, amino,
imino, thio or carboxy groups, where these are desired in the final
product, to avoid their unwanted participation in the reactions.
Conventional protecting groups may be used in accordance with
standard practice, for examples see T. W. Greene and P. G. M. Wuts
in "Protective Groups in Organic Chemistry" John Wiley and Sons,
1991.
[0312] Compounds of Formula I, where X.sup.1 is
--NHC(R.sup.1)(R.sup.2)X.sup.2, can be prepared by proceeding as in
the following Reaction Scheme 1: ##STR479## in which each X.sup.2,
R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined for Formula I
in the Summary of the Invention.
[0313] Compounds of Formula I can be prepared by condensing an acid
of Formula 2 with an amino compound of formula
NH.sub.2CR.sup.1R.sup.2X.sup.2. The condensation reaction can be
effected with an appropriate coupling agent (e.g.,
benzotriazol-1-yloxytrispyrrolidinophosphonium hexafluorophosphate
(PyBOP.RTM.), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide
hydrochloride (EDCI),
O-benzotriazol-1-yl-N,N',N'-tetramethyluronium hexafluorophosphate
(HBTU), 1,3-dicyclohexylcarbodiimide (DCC), or the like) and
optionally an appropriate catalyst (e.g., 1-hydroxybenzotriazole
(HOBt), 1-hydroxy-7-azabenzotriazole (HOAt),
O-(7-azabenzotrizol-1-yl)-1,1,3,3,
tetramethyluroniumhexafluorophosphate (HATU), or the like) and
non-nucleophilic base (e.g., triethylamine, N-methylmorpholine, and
the like, or any suitable combination thereof) at ambient
temperature and requires 5 to 10 hours to complete.
[0314] An oxidation step, if required, can be carried out with an
oxidizing agent (e.g., Oxone.RTM., metachloroperbenzoic acid or the
like) in a suitable solvent (e.g., methanol, water, or the like, or
any suitable combination thereof) at ambient temperature and
requires 16 to 24 hours to complete. Detailed descriptions for the
synthesis of a compound of Formula I by the processes in Reaction
Scheme 1 are set forth in the Examples 1 to 6, infra.
[0315] Compounds of Formula I, where X.sup.1 is --NHX.sup.3, can be
prepared by proceeding as in the following Reaction Scheme 2:
##STR480## in which each X.sup.3, R.sup.3 and R.sup.4 are as
defined for Formula I in the Summary of the Invention.
[0316] Compounds of Formula I can be prepared by condensing an acid
of Formula 2 with an amino compound of formula NH.sub.2X.sup.3. The
condensation reaction can be effected with an appropriate coupling
agent (e.g., benzotriazol-1-yloxytrispyrrolidinophosphonium
hexafluorophosphate (PyBOP.RTM.),
1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDCI),
O-benzotriazol-1-yl-N,N,N',N'-tetramethyluronium
hexafluorophosphate (HBTU), 1,3-dicyclohexylcarbodiimide (DCC), or
the like) and optionally an appropriate catalyst (e.g.,
1-hydroxybenzotriazole (HOBt), 1-hydroxy-7-azabenzotriazole (HOAt),
O-(7-azabenzotrizol-1-yl)-1,1,3,3,
tetra-methyluroniumhexafluorophosphate (HATU), or the like) and
non-nucleophilic base (e.g., triethylamine, N-methylmorpholine, and
the like, or any suitable combination thereof) at ambient
temperature and requires 5 to 10 hours to complete.
[0317] An oxidation step, if required, can be carried out with an
oxidizing agent (e.g., Oxone.RTM., metachloroperbenzoic acid or the
like) in a suitable solvent (e.g., methanol, water, or the like, or
any suitable combination thereof) at ambient temperature and
requires 16 to 24 hours to complete.
[0318] Compounds of Formula 2 can be prepared by reacting a
compound of Formula 3 with a compound of Formula R.sup.3L:
##STR481## in which L is a leaving group and R.sup.3 and R.sup.4
are as defined in the Summary of the Invention. The reaction
involves coupling (or alkylation) followed by alkaline hydrolysis
at a temperature during which the dicarboxylic acid formed
undergoes mono-decarboxylation. The coupling reaction can be
carried out in the presence of a suitable base (e.g. triethylamine)
in a suitable solvent (e.g. ethanol). The decarbalkoxylation can be
effected under strongly basic conditions (e.g. in the presence of
1N aqueous sodium hydroxide) in a suitable solvent (e.g. ethanol).
Detailed descriptions for the synthesis of compounds of Formula 2
by the process described above are set forth in the References,
infra
[0319] Compounds of Formula 2, in which R.sup.3 and R.sup.4 are
benzylsulfonylmethyl, can be prepared by reacting a compound of
Formula 4: ##STR482## in which R.sup.30 is a halo group, with
benzyl mercaptan under strongly basic conditions to produce a
compound of Formula 5: ##STR483## followed by reaction with benzyl
mercaptan in the presence of a suitable coupling reagent (e.g.
DMAP) and in a suitable solvent (e.g. DMF). A detailed description
of the synthesis of a compound of Formula 2 by a similar process as
that described above is set forth in the References, infra.
[0320] Compounds of Formula 2, in which R.sup.4 is biaryl, can be
prepared by coupling a compound of Formula 6: ##STR484## in which
R.sup.30 is a halo group and R.sup.3 is as defined in the Summary
of the Invention, with a compound of ArL, in which Ar is an aryl
group and L is a leaving group, to produce a compound of Formula 2
in which R.sup.4 is biaryl. The coupling reaction takes place in
the presence of a suitable catalyst (e.g.
tetrakis-triphenylphosphine palladium). A detailed description of
the synthesis of a compound of Formula 2 by the process described
above is set forth in the References, infra. Additional Processes
for Preparing Compounds of Formula I:
[0321] A compound of Formula I can be prepared as a
pharmaceutically acceptable acid addition salt by reacting the free
base form of the compound with a pharmaceutically acceptable
inorganic or organic acid. Alternatively, a pharmaceutically
acceptable base addition salt of a compound of Formula I can be
prepared by reacting the free acid form of the compound with a
pharmaceutically acceptable inorganic or organic base. Inorganic
and organic acids and bases suitable for the preparation of the
pharmaceutically acceptable salts of compounds of Formula I are set
forth in the definitions section of this Application.
Alternatively, the salt forms of the compounds of Formula I can be
prepared using salts of the starting materials or
intermediates.
[0322] The free acid or free base forms of the compounds of Formula
I can be prepared from the corresponding base addition salt or acid
addition salt form. For example, a compound of Formula I in an acid
addition salt form can be converted to the corresponding free base
by treating with a suitable base (e.g., ammonium hydroxide
solution, sodium hydroxide, and the like). A compound of Formula I
in a base addition salt form can be converted to the corresponding
free acid by treating with a suitable acid (e.g., hydrochloric
acid, etc).
[0323] The N-oxides of compounds of Formula I can be prepared by
methods known to those of ordinary skill in the art. For example,
N-oxides can be prepared by treating an unoxidized form of the
compound of Formula I with an oxidizing agent (e.g.,
trifluoroperacetic acid, permaleic acid, perbenzoic acid, peracetic
acid, meta-chloroperoxybenzoic acid, or the like) in a suitable
inert organic solvent (e.g., a halogenated hydrocarbon such as
dichloromethyl) at approximately 0.degree. C. Alternatively, the
N-oxides of the compounds of Formula I can be prepared from the
N-oxide of an appropriate starting material.
[0324] Compounds of Formula I in unoxidized form can be prepared
from N-oxides of compounds of Formula I by treating with a reducing
agent (e.g., sulfur, sulfur dioxide, triphenyl phosphine, lithium
borohydride, sodium borohydride, phosphorus trichloride,
tribromide, or the like) in an suitable inert organic solvent
(e.g., acetonitrile, ethanol, aqueous dioxane, or the like) at 0 to
80.degree. C.
[0325] Prodrug derivatives of the compounds of Formula I can be
prepared by methods known to those of ordinary skill in the art
(e.g., for further details see Saulnier et al. (1994), Bioorganic
and Medicinal Chemistry Letters, Vol. 4, p. 1985). For example,
appropriate prodrugs can be prepared by reacting a non-derivatized
compound of Formula I with a suitable carbamylating agent (e.g.,
1,1-acyloxyalkylcarbonochloridate, para-nitrophenyl carbonate, or
the like).
[0326] Protected derivatives of the compounds of Formula I can be
made by means known to those of ordinary skill in the art. A
detailed description of the techniques applicable to the creation
of protecting groups and their removal can be found in T. W.
Greene, Protecting Groups in Organic Synthesis, 3.sup.rd edition,
John Wiley & Sons, Inc. 1999. Compounds of the present
invention may be conveniently prepared, or formed during the
process of the invention, as solvates (e.g. hydrates). Hydrates of
compounds of the present invention may be conveniently prepared by
recrystallisation from an aqueous/organic solvent mixture, using
organic solvents such as dioxin, tetrahydrofuran or methanol.
Compounds of Formula I can be prepared as their individual
stereoisomers by reacting a racemic mixture of the compound with an
optically active resolving agent to form a pair of
diastereoisomeric compounds, separating the diastereomers and
recovering the optically pure enantiomer. While resolution of
enantiomers can be carried out using covalent diasteromeric
derivatives of compounds of Formula I, dissociable complexes are
preferred (e.g., crystalline diastereoisomeric salts).
Diastereomers have distinct physical properties (e.g., melting
points, boiling points, solubilities, reactivity, etc.) and can be
readily separated by taking advantage of these dissimilarities. The
diastereomers can be separated by chromatography or, preferably, by
separation/resolution techniques based upon differences in
solubility. The optically pure enantiomer is then recovered, along
with the resolving agent, by any practical means that would not
result in racemization. A more detailed description of the
techniques applicable to the resolution of stereoisomers of
compounds from their racemic mixture can be found in Jean Jacques
Andre Collet, Samuel H. Wilen, Enantiomers, Racemates and
Resolutions, John Wiley & Sons, Inc. (1981).
[0327] In summary, the compounds of Formula I are made by a process
which comprises: [0328] (A) reacting a compound of Formula 2:
##STR485## [0329] with a compound of the formula
NH.sub.2CR.sup.1R.sup.2X.sup.2, in which X.sup.2, R.sup.1, R.sup.2,
R.sup.3 and R.sup.4 are as defined in the Summary of the Invention
for Formula I; or [0330] (B) reacting a compound of Formula 2 with
a compound of the formula NH.sub.2X.sup.3, in which X.sup.3,
R.sup.3 and R.sup.4 are as defined in the Summary of the Invention
for Formula I; or [0331] (C) optionally converting a compound of
Formula I into a pharmaceutically acceptable salt; [0332] (D)
optionally converting a salt form of a compound of Formula I to
non-salt form; [0333] (E) optionally converting an unoxidized form
of a compound of Formula I into a pharmaceutically acceptable
N-oxide; [0334] (F) optionally converting an N-oxide form of a
compound of Formula I its unoxidized form; [0335] (G) optionally
resolving an individual isomer of a compound of Formula I from a
mixture of isomers; [0336] (H) optionally converting a
non-derivatized compound of Formula I into a pharmaceutically
prodrug derivative; and [0337] (I) optionally converting a prodrug
derivative of a compound of Formula I to its non-derivatized
form.
EXAMPLES
[0338] The present invention is further exemplified, but not
limited by, the following examples that illustrate the preparation
of compounds of Formula I (Examples) and intermediates (References)
according to the invention.
Reference I
3-Benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid
[0339] ##STR486##
[0340] A solution of diethyl bis(hydroxymethyl)malonate (46.95 g,
0.21 moles) (prepared by the method of P. Block, Jr., Organic
Synthesis, Collective Volume V, 381 (1973)) in methylene chloride
(500 mL) was treated with triethylamine (63 mL) and cooled to
-30.degree. C. A mixture of methylsulfonyl chloride (35 mL) in
methylene chloride (40 mL) was added to the reaction mixture
dropwise over 20 minutes and the reaction mixture was allowed to
stir at room temperature for 18 hours. The reaction mixture was
then poured into ice water and the product was extracted with
methylene chloride. The organic extracts were washed with saturated
aqueous sodium chloride and then dried over magnesium sulfate. The
solvent was removed by rotary evaporation at reduced pressure and
the residue was recrystallized from t-butylmethyl ether and hexane
to give 2,2-bis-methylsulfonyloxymethyl-malonic acid diethyl ester
(55.04 g).
[0341] Sodium (0.268 g, 11.6 mmol) was dissolved in ethanol (25 mL)
and the resulting solution was treated with benzyl mercaptan (1.87
mL, 15.9 mmol). The reaction mixture was cooled on ice and the
2,2-bis-methylsulfonyloxymethyl-malonic acid diethyl ester (2.00 g,
5.31 mmol) was added. The reaction mixture was stirred at room
temperature for 16 hours and then heated at 55.degree. C. for 1.5
hours. The resulting solution was cooled to room temperature and
poured into ice water. The product was extracted with ethyl
acetate. The extracts were washed with saturated aqueous sodium
chloride and then dried over magnesium sulfate. The solvent was
removed by rotary evaporation at reduced pressure and the residue
was chromatographed on silica gel eluting with ethyl acetate/hexane
to give 3-benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid
ethyl ester (1.589 g, 83% yield).
[0342] 3-Benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid ethyl
ester (1.589 g, 4.41 mmol) in a mixture of potassium hydroxide (1N,
7 mL), water (3 mL), dioxane (30 mL) and ethanol (10 mL) was
stirred at room temperature for 18 hours. The solvents were removed
form the reaction mixture by rotary evaporation at reduced pressure
and the residue was dissolved in water and washed with ether. The
aqueous layer was cooled on ice, acidified to pH 2 and the product
extracted with ethyl acetate. The extracts were washed with
saturated aqueous sodium chloride and then dried over magnesium
sulfate. The solvent was removed by rotary evaporation at reduced
pressure to give 3-benzylsulfanyl-2-benzylsulfanylmethyl-propionic
acid (1.293 g, 88%).
Reference 2
2-Benzylsulfanylmethyl-3-[2-(1,1-difluoro-methoxy)-benzulsulfanyl]-propion-
ic acid
[0343] ##STR487##
[0344] 2-Bromomethylacrylic acid (3.00 g, 18.1 mmol) was dissolved
in methanol (100 mL), cooled on an ice bath and treated with benzyl
mercaptan. Aqueous sodium hydroxide (1N, 39.8 mL) was added
dropwise and the reaction mixture was allowed to adjust to room
temperature with stirring for 23 hours. Methanol was removed by
rotary evaporation at reduced pressure and water (100 mL) was added
to the residue, which was then washed with ether. The aqueous layer
was cooled on ice and acidified to pH 2.5. The precipitated solid
was isolated by filtration and dried to give
2-benzylsulfanylmethyl-acrylic acid (3.346 g, 89%).
[0345] A solution of 2-difluoromethoxybenzyl mercaptan (0.534 g,
2.81 mmol), 2-benzylsulfanylmethyl-acrylic acid (0.585 g, 2.81
mmol) and 4-dimethylaminopyridine (36 mg, 0.3 mmol) in DMF (1.5 ml)
was stirred at room temperature for 20 hours. An additional amount
of 2-difluoromethoxybenzyl mercaptan (0.201 g) was added to the
reaction mixture and stirring was continued for another 24 hours.
The reaction mixture was poured into dilute, cold, aqueous HCl and
the product extracted with ethyl acetate. The extracts were washed
with saturated aqueous sodium chloride and then dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure and the residue was chromatographed on silica gel
eluting with ethyl acetate/hexane to give
2-Benzylsulfanylmethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfanyl]-propio-
nic acid (0.706 g).
Reference 3
2-Benzylsulfanylmethyl-3-cyclohexyl-propionic acid
[0346] ##STR488##
[0347] A solution of diethyl-2-cyclohexylmethyl malonate (2.56 g),
37% aqueous formaldehyde (0.80 mL), potassium bicarbonate (0.08 g)
and ethanol (2.5 mL) was stirred at room temperature for 20 hours.
Saturated aqueous ammonium sulfate (10 mL) was added to the
reaction and the product extracted with ethyl acetate. The extracts
were washed with saturated aqueous sodium chloride and then dried
over magnesium sulfate. The solvent was removed by rotary
evaporation at reduced pressure and the residue was chromatographed
on silica gel eluting with ethyl acetate/hexane to give
2-cyclohexylmethyl-2-hydroxymethyl-malonic acid diethyl ester (1.31
g).
[0348] A solution of 2-cyclohexylmethyl-2-hydroxymethyl-malonic
acid diethyl ester (1.31 g, 4.13 mmol) in methylene chloride (20
mL) and triethyl amine (1.16 mL, 8.00 mmol) was cooled to
-40.degree. C. A solution of methylsulfonyl chloride (0.402 mL, 5.2
mmol) in methylene chloride (4 mL) was added to the reaction
mixture over 5 minutes. The reaction mixture was warmed to
-10.degree. C. over 1 hour and then poured into cold dilute aqueous
HCl. The product was extracted with ethyl acetate, the extracts
were washed with saturated aqueous sodium chloride and then dried
over magnesium sulfate. The solvent was removed by rotary
evaporation at reduced pressure to give
2-cyclohexylmethyl-2-methylsulfonyloxymethyl-malonic acid diethyl
ester (1.505 g).
[0349] Sodium (0.097 g, 4.2 mmol) was dissolved in ethanol (10 mL)
and the resulting solution was cooled to 0.degree. C. and treated
with a mixture comprising benzyl mercaptan (0.493 mL, 4.2 mmol) and
2-cyclohexylmethyl-2-methylsulfonyloxymethyl-malonic acid diethyl
ester (1.466 g, 4.02 mmol). The reaction was stirred at room
temperature for 17 hours, 53.degree. C. for 20 hours and 73.degree.
C. for 24 hours. The ethanol was removed by rotary evaporation, the
reaction mixture was poured into water and the product was
extracted with ethyl acetate. The extracts were washed with
saturated aqueous sodium chloride and then dried over magnesium
sulfate. The solvent was removed by rotary evaporation at reduced
pressure and the residue was chromatographed on silica gel eluting
with ethyl acetate/hexane to give
2-benzylsulfanylmethyl-3-cyclohexyl-propionic acid ethyl ester
(0.237 g).
[0350] A mixture of 2-benzylsulfanylmethyl-3-cyclohexyl-propionic
acid ethyl ester (0.230 g), dioxane (10 mL), sodium hydroxide (1N,
3 mL), water (2 mL) and ethanol (4 mL) was stirred for 20 hours at
room temperature. The solvents were evaporated and the residue
dissolved in water (50 mL). The aqueous solution was washed twice
with ether and then acidified to pH2. The product was extracted
from the aqueous solution with ethyl acetate and the extracts were
washed with saturated aqueous sodium chloride and then dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure to give acid
2-benzylsulfanylmethyl-3-cyclohexyl-propionic acid (0.210 g).
Reference 4
4-Benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-butyric acid
[0351] ##STR489##
[0352] A mixture of 2-iodoethylphenyl sulfide (19.81 g, 75 mmol),
diethyl malonate (4.80 g, 30 mmol), potassium carbonate (10.35 g,
75 mmol) and DMF (40 mL) was heated at 52.degree. C. for 18 hours.
More potassium carbonate (10 g) was added and the reaction was
continued at 52.degree. C. for another 8 hours. The reaction
mixture was cooled, diluted with ice water and the product
extracted with ethyl acetate. The extracts were washed with
saturated aqueous sodium chloride and then dried over magnesium
sulfate. The solvent was removed by rotary evaporation at reduced
pressure and the residue was chromatographed on silica gel eluting
with ethyl acetate/hexane to give
2,2-bis-(2-phenylsulfanyl-ethyl)-malonic acid diethyl ester (5.648
g).
[0353] A solution of 2,2-bis-(2-phenylsulfanyl-ethyl)-malonic acid
diethyl ester (5.614 g) in ethanol (100 mL) was treated with
lithium hydroxide (2.84 g) in water (10 mL). The reaction mixture
was heated at 49.degree. C. for 17 hours followed by 85.degree. C.
for 2 hours. The solvents were evaporated at reduced pressure to
give a residue that was treated with water (100 mL) and washed with
ether. The aqueous layer was cooled on ice, acidified and the
product extracted with ethyl acetate. The extracts were dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure to give acid
2,2-bis-(2-phenylsulfanyl-ethyl)-malonic acid (5.628 g).
[0354] 2,2-Bis-(2-phenylsulfanyl-ethyl)-malonic acid (5.628 g) was
heated at 150.degree. C. for 30 minutes. The reaction mixture was
cooled to room temperature, dissolved in ethyl acetate and washed
with aqueous sodium bicarbonate. The ethyl acetate solution was
washed with saturated aqueous sodium chloride and then dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure and the residue was chromatographed on silica gel
eluting with ethyl acetate/hexane to give
4-phenylsulfanyl-2-(2-phenylsulfanyl-ethyl)-butyric acid (1.831
g).
[0355] A solution of
4-phenylsulfanyl-2-(2-phenylsulfanyl-ethyl)-butyric acid (0.332 g)
in methanol (10 mL) was treated with a solution of Oxone.RTM. (1.87
g in 10 mL of water). After stirring 18 hours at room temperature
the reaction mixture was diluted with water (30 mL) and evaporated
under reduced pressure to remove the methanol. The product was
extracted with ethyl acetate. The extracts were washed with
saturated aqueous sodium chloride and then dried over magnesium
sulfate. The solvent was removed by rotary evaporation and the
resulting oil was crystallized from t-butylmethyl ether to give
4-benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-butyric acid (0.315
g).
Reference 5
4-Morpholin-4-yl-4-oxo-2-(2-trifluoromethyl-benzylsulfonylmethyl)-butyric
acid
[0356] ##STR490##
[0357] A solution of 3-methylene-dihydro-furan-2,5-dione (5.9 g,
52.7 mmol) in CH.sub.2Cl.sub.2 (200 mL) was cooled to 0.degree. C.
before adding morpholine (4.6 mL, 52.7 mmol) slowly over 5 minutes.
The ice bath was removed and the mixture was stirred at room
temperature for 1 hour. The solvent was evaporated under vacuum to
2-Methylene-4-morpholin-4-yl-4-oxo-butyric acid.
[0358] A mixture of 2-methylene-4-morpholin-4-yl-4-oxo-butyric acid
(2 g, 10.03 mmol), in DMF (5 mL), 2-trifluoromethylbenzyl mercaptan
(1.93 g, 10.03 mmol) and DMAP (122 mg, 1.0 mmol) was stirred at
ambient temperature for 16 hours. Methanol (200 mL) and a saturated
aqueous solution of Oxone.RTM. (20 g, 32.5 mmol) were added with
continued stirring for 2 hours. Methanol was removed under vacuum
and the aqueous residue was diluted with 200 mL of water. The
crystallized product was filtered, washed with water, and dried
under vacuum to yield
4-morpholin-4-yl-4-oxo-2-(2-trifluoromethyl-benzylsulfonylmethyl)-butyric
acid (0.95 g) as a white solid.
[0359] Compounds of Formula I in which R.sup.3 is
--CH.sub.2SR.sup.14 (R.sup.14 is as described in the summary of the
invention) can be synthesized by the following reaction protocol:
##STR491##
[0360] Compound 1 was prepared as S or R enantiomers using the
method described by Crawforth et al. J. Chem. Soc., Perkin Trans.
1, 1721-1725, 1998.
[0361] Compound 2 was prepared by dissolving compound 1 in
methylene chloride with triphenylphosphine (1.1 equivalents)
followed by the slow addition of N-bromosuccinamide (1.05
equivalents) over a 5 minute period and the reaction was allowed to
stir for 3-8 hours at room temperature. The mixture was then
extracted with water and brine, then dried over sodium sulfate.
After concentrating the residue was dissolved in ether and a small
amount of heptane was added to remove unwanted solids. After
filtering and concentration the resulting bromide was used without
further purification. This intermediate was dissolved in THF then
potassium thioacetate (1.1 equivalents) was added in one portion
and the reaction was stirred for 3 to 24 hours at room temperature.
The solvent was removed and the residue taken up in ethanol. Sodium
hydroxide was added (2.2 equivalents) and the reaction was stirred
for 10 to 60 minutes at room temperature. 1 equivalent of a
halo-substituted compound (e.g. benzyl bromide, isobutyl bromide,
cyclopropylmethyl bromide; see other elements from table 2, supra)
was added with stirring for 6 to 24 hours at room temperature. The
ethanol was removed under vacuum and the mixture was diluted with
water and made acidic with 4 N HCl (pH=1 to 2). The aqueous layer
was extracted with ethyl acetate 3 times and the organic layer was
dried over sodium sulfate and concentrated. The product was
purified on silica gel using a mixture of ethyl acetate and heptane
(gradient 1:4 to 4:1) to give compound 2.
[0362] Compound 3 was made by stirring a solution of compound 2 in
THF with morpholine (2 equivalents), which was heated, to reflux
for 1 to 24 hours. Concentration of the mixture and redissolving in
methylene chloride and extraction with diluted HCl removed the
excess morpholine. The organic layer was washed with saturated
sodium bicarbonate, dried over sodium sulfate and concentrated to
dryness. The product was purified on silica gel using a mixture of
ethyl acetate and heptane (gradient 1:4 to 4:1) to give compound
3.
[0363] Compound 4 was prepared from compound 3 by dissolving in a
1:1 mixture of methanol/water and adding oxone.RTM. (approximately
1 equivalent) over a period of 1 to 3 hours until a positive
starch-iodine test was maintained. The solvent was removed under
vacuum and the residue dissolved in a 1:1:1 mixture of
water/acetonitrile/carbon tetrachloride. This was followed by the
addition of sodium periodate and ruthenium (III) chloride which was
vigorously stirred for 6 to 24 hours at a temperature below
40.degree. C. The reaction was filtered through celite and
concentrated to remove acetonitrile and carbon tetrachloride. The
aqueous layer was extracted with ethyl acetate 3 times and the
organic layer dried over sodium sulfate and concentrated. The
product was purified on silica gel using a mixture of ethyl acetate
and heptane (1:4 to 4:1) to ethyl acetate and methanol (19:1 to
4:1) to give compound 4, which was obtained as R or S
enantiomers.
Reference 6
(S)-4-Amino-2,2-difluoro-3-hydroxy-hexanoic acid dimethylamide
[0364] ##STR492##
[0365] Activated zinc dust (2.16 g, 33 mmol) was suspended in dry
THF (2 mL). A mixture of ethyl bromodifluoro acetate (6.5 g, 32
mmol) and (1S)-(1-formyl-propyl) carbamic acid tert-butyl ester (2
g, 10.7 mmol), in THF (10 mL), was added over 20 minutes while the
mixture was sonicated. After complete addition, sonication was
continued for a further 30 minutes. The mixture was then diluted
with ethyl acetate (200 mL) and washed with 1N aqueous KHSO.sub.4,
brine, dried with magnesium sulfate and evaporated. The crude
product was dissolved in ethanol (15 mL) and a solution of
dimethylamine (40% in water; 2 mL) was added. After stirring for 16
hours at ambient temperature, the solvents were evaporated and the
product was purified by flash chromatography on silica gel
(hexane/ethyl acetate ratio of 3:1) to yield 200 mg of colorless
oil.
[0366] The amide was dissolved in a mixture of TFA/dichloromethyl
(1:1; 6 mL), stirred for 1 hour and evaporated to dryness. The
product, (4S)-4-amino-2,2-difluoro-3-hydroxy-hexanoic acid
dimethylamide, was obtained as the TFA salt and used without
further purification.
Reference 7
(S)-3-Amino-2-hydroxy-pentanoic acid benzylamide
[0367] ##STR493##
[0368] (1S)-(2-Cyano-1-ethyl-2-hydroxyethyl)carbamic acid
tert-butyl ester (10 g, 46.7 mmol) was dissolved in 1,4-dioxane
(100 mL). Anisole (5 mL) was added and then concentrated HCl (100
mL). The mixture was heated under reflux for 24 hours. The mixture
was evaporated to dryness under vacuum and re-dissolved in 100 mL
water. The solution was washed with ether and then neutralized with
saturated aqueous NaHCO.sub.3. Di-tert-butyl dicarbonate (10 g, 46
mmol) was added with 1,4-dioxane (200 mL), and the mixture was
stirred at ambient temperature for 24 hours. The dioxane was
removed under vacuum and the remaining aqueous solution was washed
with ether. The solution was acidified with 1N HCl and extracted
with ethyl acetate. The combined organic layers were washed with
brine, dried with magnesium sulfate and evaporated to yield
3-tert-Butoxycarbonylamino-2-hydroxy-pentanoic acid (4.5 g) as
yellowish oil.
[0369] 3-tert-Butoxycarbonylamino-2-hydroxy-pentanoic acid (300 mg,
1.29 mmol) was combined with EDC (400 mg, 2.1 mmol) and HOBt (400
mg, 2.6 mmol). A solution of benzylamine (0.22 mL) and
4-methylmorpholine (0.5 mL) in dichloromethyl (4 mL) was added in
one portion. The mixture was stirred at ambient temperature for 2
hours. After dilution with ethyl acetate (150 mL), the solution was
washed with 1N aqueous HCl, water, saturated aqueous NaHCO.sub.3
solution and brine. The resultant mixture was dried with magnesium
sulfate and evaporated under vacuum to yield
(S)-3-amino-2-hydroxy-pentanoic acid benzylamide (380 mg) as a
white solid.
[0370] (S)-3-Amino-2-hydroxy-pentanoic acid benzylamide was
dissolved in a mixture of TFA/dichloromethyl (1:1; 6 mL), stirred
for 1 hour and evaporated to dryness.
(3S)-3-Amino-2-hydroxy-pentanoic acid benzylamide was obtained as
the TFA salt and used without further purification.
Reference 8
4-(4-Methylsulfonylamino-phenyl)-4-oxo-2-benzylsulfonylmethyl
-butyric acid
[0371] ##STR494##
[0372] 3-Methylene-dihydro-furan-2,5-dione (2 g, 17.8 mmol) and
N-phenyl-methylsulfonamide (1.53 g, 8.92 mmol) were dissolved in
anhydrous 1,2-dichloroethane. Aluminum trichloride (4.76 g, 35.7
mmol) was added and the mixture was stirred at 50.degree. C. for 16
hours. Following dilution with ethyl acetate (400 mL), the solution
was washed with 1N aqueous HCl, water and brine, dried with
magnesium sulfate and evaporated. The product,
4-(4-methylsulfonylamino-phenyl)-2-methylene-4-oxo-butyric acid
(1.70 g), was crystallized from ethylacetate/hexane.
[0373] 4-(4-Methylsulfonylamino-phenyl)-2-methylene-4-oxo-butyric
acid (800 mg, 2.83 mmol) was dissolved in DMF (5 mL). Benzyl
mercaptan (0.5 mL, 4.25 mmol) and DMAP (200 mg, 1.6 mmol) were
added. The mixture was stirred at ambient temperature for 16 hours.
Methanol (200 mL) was added and, under vigorous stirring, a
saturated aqueous solution of Oxone.RTM. (15 g, 24.4 mmol) was
added in one portion. Stirring was continued for 2 hours. Methanol
was removed under vacuum and the aqueous residue was diluted with
100 mL water. The crystallized product,
4-(4-Methylsulfonylamino-phenyl)-4-oxo-2-benzylsulfonylmethyl-butyric
acid (380 mg), was filtered, washed with water, and dried under
vacuum.
Reference 9
3-Biphenyl-3-yl-2-benzylsulfonylmethyl-propionic acid
[0374] ##STR495##
[0375] Sodium hydride (60% in oil, 1.36 g, 34 mmol) was dissolved
in anhydrous ethanol (50 mL) under ice cooling. After the H.sub.2
evolution ceased, diethylmalonate (5.15 mL, 34 mmol) was added and
stirring was continued for 30 minutes at ambient temperature. Then
3-bromobenzyl bromide (4.24 g, 16.96 mmol) was added and stirring
was continued for 2 hours. The reaction mixture was acidified with
1N aqueous HCl and extracted with ethyl acetate (3.times.150 mL).
The combined organic layers were washed with brine, dried with
magnesium sulfate and evaporated. The excess diethylmalonate was
removed under high vacuum.
[0376] The crude product was dissolved in ethanol (50 mL) and 1N
aqueous NaOH (20 mL) was added. After stirring for 16 hours, the
mixture was acidified with 1N aqueous HCl and extracted with ethyl
acetate. The combined organic layers were washed with brine, dried
with magnesium sulfate and evaporated.
[0377] The crude monoacid was dissolved in 1,4-dioxane (20 mL).
Diethylamine (2.48 mL, 24 mmol) was added and the solution was
cooled to 0.degree. C. Formaldehyde solution (37% in water, 2.44
mL) was added and stirring was continued for 24 hours at ambient
temperature. After dilution with ethyl acetate (300 mL), the
solution was washed with water, and brine, dried with magnesium
sulfate and evaporated. The crude product,
2-(3-bromo-benzyl)-acrylic acid ethyl ester, was dissolved in
ethanol (20 mL). Benzylmercaptan (2 mL, 17 mmol) and triethylamine
(4 mL) were added. After stirring for 16 hours, 1N aqueous NaOH (50
mL) was added and enough 1,4-dioxane to get a homogenous solution.
The reaction mixture was warmed to 50.degree. C. for 5 hours. All
organic solvents were removed under vacuum, and the aqueous residue
was acidified to pH 1 with 1N aqueous HCl. The product was
extracted with ethyl acetate (3.times.150 mL). The combined organic
layers were washed with brine, dried with magnesium sulfate and
evaporated. The residue was dissolved in methanol (250 mL) and
Oxone.RTM. (35 g) was added. The reaction mixture was stirred at
ambient temperature for 2 hours. Methanol was removed under vacuum.
The precipitated product was filtered, washed with water, and dried
under vacuum. Recrystallization from chloroform gave
3-(3-Bromo-phenyl)-2-benzylsulfonylmethyl-propionic acid (2.43 g)
as white solid.
[0378] 3-(3-Bromo-phenyl)-2-benzylsulfonylmethyl-propionic acid
(0.5 g, 1.26 mmol) was dissolved in toluene (20 mL) and ethanol (5
mL). Tetrakistriphenylphosphine palladium (146 mg, 0.126 mmol) was
added and the mixture was stirred at ambient temperature under
nitrogen for 30 minutes. Powdered potassium carbonate (870 mg, 6.3
mmol) and phenylboronic acid (200 mg, 1.64 mmol) were added, and
the reaction mixture was heated at 75.degree. C. for 2 hours. After
cooling, the mixture was acidified with 1N aqueous HCl and
extracted with ethyl acetate (3.times.50 mL). The combined organic
layers were washed with brine, dried with magnesium sulfate and
evaporated. The acid was purified by flash chromatography on silica
gel (ethyl acetate/hexane; 1:1) to yield
3-biphenyl-3-yl-2-benzylsulfonylmethyl-propionic acid (0.40 g).
Reference 10
3-Acetylsulfanyl-2-benzylsulfanylmethyl-propionic acid
[0379] ##STR496##
[0380] 2-Bromomethylacrylic acid (3.00 g, 18.1 mmol) was dissolved
in methanol (100 mL), cooled on an ice bath and treated with benzyl
mercaptan. Aqueous sodium hydroxide (1N, 39.8 mL) was added
dropwise and the reaction mixture was allowed to adjust to room
temperature with stirring for 23 hours. Methanol was removed by
rotary evaporation at reduced pressure and water (100 mL) was added
to the residue, which was then washed with ether. The aqueous layer
was cooled on ice and acidified to pH 2.5. The precipitated solid
was isolated by filtration and dried to give
2-benzylsulfanylmethyl-acrylic acid (3.346 g, 89%).
[0381] A solution of 2-benzylsulfanylmethylacrylic acid (0.208 g)
in methylene chloride (2.5 mL) was treated with thiolacetic acid
and stirred at room temperature for 72 hours. The reaction mixture
was diluted with ethyl acetate (50 mL) and then washed twice with
water and once with saturated aqueous sodium chloride. After drying
over magnesium sulfate the solvent was removed by rotary
evaporation and the residue chromatographed on silica gel eluting
with an ethyl acetate/hexane/acetic acid mixture to produce
3-acetylsulfanyl-2-benzylsulfanylmethyl-propionic acid (0.208
g).
Reference 11
(S)-2-Amino-1-(3-phenyl-[1,2,4]oxadiazol-5-yl)-butan-1-one
[0382] ##STR497##
[0383] 3-tert-Butoxycarbonylamino-2-hydroxy-pentanoic acid (500 mg,
2.14 mmol) was combined with EDC (600 mg, 3.14 mmol), HOBt (600 mg,
3.92 mmol), and N-hydroxy-benzamidine (292 mg, 2.14 mmol).
Dichloromethyl (10 mL) was added and then 4-methylmorpholine (1
mL). The mixture was stirred at ambient temperature for 16 hours.
After dilution with ethyl acetate (200 mL), the solution was washed
with water (30 mL), saturated aqueous NaHCO.sub.3 solution and
brine, dried with MgSO.sub.4 and evaporated under vacuum. The crude
product was dissolved in pyridine (10 mL) and heated at 80.degree.
C. for 15 hours. The pyridine was evaporated under vacuum and the
residue was purified by flash chromatography on silica gel (eluent:
ethyl acetate) to yield 290 mg (0.83 mmol). The oxadiazole (145 mg,
0.41 mmol) was dissolved in CH.sub.2Cl.sub.2 (4 mL) and TFA (4 mL)
was added. After stirring for 1 hour, the mixture was evaporated to
dryness to yield
(S)-2-Amino-1-(3-phenyl-[1,2,4]oxadiazol-5-yl)-butan-1-one.
Reference 12
2-Amino-1-(2-phenyl-[13]dithian-2-yl)-hexan-1-ol
[0384] ##STR498##
[0385] 2-phenyl-1,3-dithiane (Aldrich) (3.79 g; 19.3 mmol) was
mixed with dry distilled THF (20 mL) under a nitrogen atmosphere.
The solution was cooled to -60.degree. C. and n-butyl lithium (1.6M
in pentane, 1.56 mmol, 9.74 mL) was added slowly by syringe. The
reaction mixture was warmed to -20.degree. C. and held at that
temperature for 30 minutes, and then held at -10.degree. C. for 15
minutes. The yellow solution was cooled to -78.degree. C. and
(1-Formyl-pentyl)-carbamic acid tert-butyl ester (1.6 g, 1.4 mmol,
in 5 ml THF) was added rapidly (over 20 seconds) and 60 seconds
later a mixture of 2 mL acetic acid and 5 mL THF was added rapidly.
After warming to 23.degree. C. the solution was concentrated at
reduced pressure. Excess 2-phenyl-1,3-dithiane was removed by its
crystallization away from the desired product using a minimum of
ethyl acetate in hexane. The mother liquors were concentrated and
chromatographed using a hexane-ethyl acetate gradient to afford 1.7
g of
{1-[Hydroxy-(2-phenyl-[1,3]dithian-2-yl)-methyl]-pentyl}-carbamic
acid tert-butyl ester. (56% yield).
[0386] To
{1-[Hydroxy-(2-phenyl-[1,3]dithian-2-yl)-methyl]-pentyl}-carbam- ic
acid tert-butyl ester (608 mg, 1.47 mmol) in 2.7 mL dioxane at
10.degree. C. was added hydrochloric acid (2.7 mL, 4M in dioxane).
The solution was warmed to 23.degree. C. After 3 hours the solution
was diluted with 5 ml toluene and concentrated under reduced
pressure. The gummy solid was washed with diethyl ether resulting
in the hydrochloride salt of
2-amino-1-(2-phenyl-[1,3]dithian-2-yl)-hexan-1-ol, 414 mg, 82% as a
free flowing solid after removal of excess ether under reduced
pressure.
Reference 13
3-Amino-4-hydroxo-pyrrolidine-1-carboxylic acid tert-butyl
ester
[0387] ##STR499##
[0388] 6-Oxa-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid
tert-butyl ester (12.1 g, 65.3 mmol) was dissolved in a 8:1
methanol/water mixture (108 mL). Ammonium chloride (15 g) and
sodium azide (21.4 g, 329 mmol) was added and the mixture was
heated at 60.degree. C. overnight. After dilution with ether (500
mL), the mixture was washed with saturated aqueous NaHCO.sub.3 (200
mL) and brine (200 mL), dried with MgSO.sub.4 and evaporated under
vacuum. The crude product was dissolved in methanol (200 mL). 10%
Palladium on activated carbon (1.5 g) was added and the mixture was
stirred at ambient temperature under a hydrogen atmosphere until
TLC analysis showed the disappearance of the starting material. The
mixture was filtered through a pad of Celite and evaporated to
dryness under vacuum. The product was purified by flash
chromatography on silica gel. Eluent: 5% methanol in ethyl acetate
to 20% methanol, 3% triethylamine in ethyl acetate. Yield: 4.3 g of
3-amino-4-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester as
yellowish solid.
Reference 14
2-Amino-2-methyl-1-oxazolo[4,5-b]pyridin-2-yl-propan-1-one
[0389] ##STR500##
[0390] 2-amino-2-methyl-1-propanol (17.8 g, 200 mmol) was dissolved
in a mixture of water and 100 ml dioxane and cooled to 0.degree. C.
NaOH (8 g, 200 mmol) and di-t-butyl-dicarbonate (52.4 g, 240 mmol)
were added and the reaction was allowed to warm to room temperature
with stirring for 2 hours. After removing the dioxane, the residue
was extracted with EtOAc, washed with brine, dried with anhydrous
MgSO.sub.4, filtered and concentrated to yield 35 g of product.
[0391] A solution of oxylyl chloride (15.24 g, 120 mmol) in 200 ml
of MeCl.sub.2 was stirred and cooled to -60.degree. C. followed by
the drop wise addition of dimethylsulfoxide (19.7 g, 252 mmol) in
60 ml of MeCl.sub.2. After 10 minutes, a solution of
2-bocamino-2-methyl-1-propanol (18.9 g, 100 mmol) in 60 ml of
MeCl.sub.2 was added drop wise at -70.degree. C. The reaction
mixture was allowed to warm to -40.degree. C. for 10 minutes
followed by cooling to -70.degree. C. before the addition of a
solution of triethylamine (28.28 g, 280 mmol) in 60 ml of
MeCl.sub.2. The reaction mixture was allowed to warm to room
temperature over a two-hour period and 40 ml of saturated sodium
dihydrogen phosphate was added. The organic layer was washed with
brine and dried over MgSO.sub.4. The solvent was removed to yield
17.3 g of aldehyde.
[0392] A mixture of 2-amino-3-hydroxy pyridine (11 g, 100 mmol),
triethylorthoformate (80 ml) and p-toluenesulfonic acid (61 mg) was
heated at 140.degree. C. for 8 hours. Excess triethylorthoformate
was removed under vacuum. The product was crystallized from ethyl
acetate to yield 9 g of pyridyloxazole; H.sup.1 NMR (DMSO-.delta.):
9.26 (1H, s), 8.78 (1H, d), 8.45 (1H, d), 7.7(1H, dd); MS: 120.8
(M+1).
[0393] To a stirred solution of the pyridyloxazole (2.4 g, 20 mmol)
in THF (100 ml) was added n-BuLi (1.6M solution in 12.5 ml of
hexane) drop wise under N.sub.2 at -78.degree. C. After 1 hour,
MgBr.Et.sub.2O (5.16 g, 20 mmol) was added and the reaction mixture
was allowed to warm to -45.degree. C. for 1 hour before being
treated with 2-boc-amino-2-methyl-propanyl-aldehyde (2.24 g, 12
mmol) in THF (20 ml). The reaction mixture was stirred for 1 hour,
quenched with saturated NH.sub.4Cl, and extracted with ethyl
acetate. The organic layer was washed with brine, dried with
MgSO.sub.4 and concentrated. The residue was purified by silica gel
column chromatography to yield
2-boc-amino-2-methyl-1-(5-pyridyloxazole-2-yl)-1-propanol (1.18 g);
H.sup.1 NMR (DMSO-.delta.): 8.5(1H, d,d, J=1.46 Hz, J=4.94 Hz),
8.14(1H, d,d, J1.49 Hz, J=8.16 Hz), 7.41(1H, d,d, J=4.7 Hz, J=8.18
Hz), 7.1-6.8(1H, d, d), 6.53(1H, br, NH), 6.24, 6.22(1H, s,s, OH),
5.23, 5.21(1H, s,s, 1.37(3H, s, CH3), 1.33(9H, s, 3.times.CH3),
1.22(3H, s, CH3); MS: 308.2 (M+1).
[0394] 2-Boc-amino-2-methyl-1-(5-pyridyloxazole-2-yl)-1-propanol
(156 mg, 0.508 mmol) and MeCl.sub.2 (5 ml) were mixed and TFA (0.5
ml) was added at room temperature. After stirring for 1 hour, the
solvent and excess TFA were removed under vacuum to produce
2-amino-2-methyl-1-oxazolo[4,5-b]pyridin-2-yl-propan-1-one TFA salt
(165 mg).
Reference 15
2-Amino-1-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-butan-1-one
[0395] ##STR501##
[0396] (S)-(+)-2-amino-1-butanol (50 g, 561 mmol) in 200 ml of
water and 200 ml dioxane was cooled to 0.degree. C. and mixed with
NaOH (26.9 g, 673 mmol) and di-t-butyl-dicarbonate (146.96 g, 673
mmol). After the addition, the reaction was allowed to warm to room
temperature. The reaction mixture was stirred for 2 hours. After
removing the dioxane, the residue was extracted with EtOAc, then
washed with brine and dried with anhydrous MgSO.sub.4, filtered and
concentrated. Without further purification, the crude product (120
g) was used for next step reaction.
[0397] A solution of oxylyl chloride (40.39 g, 265 mmol) in 700 ml
of MeCl.sub.2 was stirred and cooled to -60.degree. C.
Dimethylsulfoxide (51.7 g, 663 mmol) in 100 ml of MeCl.sub.2 was
added drop wise. After 10 minutes a solution of
(S)-2-boc-amino-1-butanol (50 g, 265 mmol) in 100 ml of MeCl.sub.2
was added drop wise at -70.degree. C. The reaction mixture was
allowed to warm to -40.degree. C. for 10 minutes and then cooled to
-70.degree. C. again. A solution of triethylamine (74.9 g, 742
mmol) in 100 ml of MeCl.sub.2 was added. The reaction mixture was
allowed to warm to room temperature over 2 hours. 100 mls of
saturated sodium dihydrogen phosphate was added, and then the
organic layer was washed with brine and dried over MgSO.sub.4. The
solvent was removed to yield 45 g of (1-formyl-propyl)-carbamic
acid tert-butyl ester; H.sup.1 NMR (DMSO-.delta.): 9.4(1H, s),
7.29(1H, br.), 3.72(1H, m), 1.69(2H, m), 1.4-1.2(9H, s), 0.86(3H,
t).
[0398] A mixture of methyl methoxyacetate (52 g, 500 mmol),
hydrazine hydrate (30 ml) was heated to reflux for 8 hours. Excess
hydrazine and water were removed under vacuum. The residue was
extracted with n-butanol, dried with Na.sub.2SO.sub.4. Excess
n-butanol was removed to yield 45 g of hydrazide.
[0399] A mixture of above hydrazide (45 g), triethylorthoformate
(146 ml) and p-toluenesulfonic acid (61 mg) was heated at
140.degree. C. for 8 hours. Excess triethylorthoformate was removed
under vacuum. The product was purified by silica gel column
chromatography to yield 4.6 g of 2-methoxymethyl-1,3,4-oxadiazole;
H.sup.1 NMR (DMSO-.delta.): 9.21(1H, s), 4.63(2H, s), 3.27(3H,
s).
[0400] To a stirred solution of 2-methoxymethyl-1,3,4-oxadiazole
(4.6 g, 40 mmol) in THF (100 ml) was added n-BuLi (1.6M solution in
25.2 ml of hexane) drop wise under N.sub.2 at -78.degree. C. After
1 hour, MgBr.Et.sub.2O (10.4 g, 40.3 mmol) was added and the
reaction mixture was allowed to warm to -45.degree. C. for 1 hour
before being treated with 2-boc-amino-propanyl aldehyde (5.28 g,
28.25 mmol) in THF (20 ml). The reaction mixture was stirred for 1
hour, quenched with saturated NH.sub.4Cl, and extracted with ethyl
acetate. The organic layer was washed with brine, dried with
MgSO.sub.4 and concentrated. The residue was purified by silica gel
column chromatography to yield
2-boc-amino-1-(5-methoxymethyl-1,3,4-oxadiazole-2-yl)-1-propanol
(500 mg); H.sup.1 NMR (DMSO-.delta.): 6.7(1/2H, d, NH,
diastereomeric), 6.5(1/2H, d, NH, diastereomeric), 6.2(1/2H, d, OH,
diastereomeric), 6.0(1/2H, d, OH, diastereomeric), 4.83-4.79(1H,
m), 4.55(2H, s), 4.05-3.5(1H, m), 3.31(3H, s), 1.9-1.4(2H, m),
1.4-1.2(9H, m), 0.85-0.81(3H, m); MS: 300.4(M-1), 302.4(M+1).
[0401]
2-Boc-amino-1-(5-methoxymethyl-1,3,4-oxadiazole-2-yl)-1-propanol
(500 mg, 1.66 mmol), and MeCl.sub.2 (5 ml) were mixed and TFA (0.5
ml) was added at room temperature. After stirring for 1 hour, the
solvent and excess TFA were removed under vacuum to produce
2-amino-1-(5-methoxymethyl-[[3,4]oxadiazol-2-yl)-butan-1-one TFA
salt (340 mg).
Reference 16
2-Amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol
[0402] ##STR502##
[0403] A mixture of the benzylhydrazide (22.5 g, 165 mmol),
triethylorthoformide (150 ml) and p-toluenesulfonic acid (300 mg)
was heated at 120.degree. C. for 12 hours. Excess
triethylorthoformide was removed under vacuum and the residue was
purified by silica gel column chromatography to produce oxadiazole
(14.5 g); H.sup.1 NMR (DMSO-.delta.): 9.34 (1H, s), 8.05-7.98 (2H,
m), 7.68-7.55 (3H, m); MS: 147.4 (M+1).
[0404] To a stirred solution of the oxadiazole (10 g, 68.5 mmol) in
THF (100 ml) was added n-BuLi (1.6M solution in 42.8 ml of hexane)
drop wise under N.sub.2 at -78.degree. C. After 1 hour,
MgBr.Et.sub.2O (17.69 g, 68.5 mmol) was added and the reaction
mixture was allowed to warm to -45.degree. C. for 1 hour before
being treated with 2-boc-amino-butyl-aldehyde (7.8 g, 41 mmol) in
THF (20 ml). The reaction mixture was stirred for 1 hour, quenched
with saturated NH.sub.4Cl, and extracted with ethyl acetate. The
organic layer was washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified by silica gel column
chromatography to yield
2-(2-boc-amino-1-hydroxydutyl)-5-benzyl-1,3,4-oxadiazole (9.7 g);
H.sup.1 NMR (DMSO-.delta.): 8-7.9(2H, m), 7.8-7.7(3H, m),
6.8-6.6(1H, d,d, NH, diastereomeric), 6.4-6.1(1H, d,d, OH,
diastereomeric), 5-4.4(1H, m), 1.9-1.3(2H, m), 1.3-1.1(9H, s, s),
0.84(3H, t); MS: 334.5(M+1).
[0405] 2-(2-Boc-amino-1-hydroxybutyl)-5-benzyl-1,3,4-oxadiazole
(505 mg, 1.5 mmol) and MeCl.sub.2 (5 ml) were mixed and TFA (1 ml)
was added at room temperature. After stirring for 1 hour, the
solvent and excess TFA were removed under vacuum to produce 530 mg
of 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt.
Reference 17
2-Amino-1-oxazolo[4,5-b]pyridin-2-yl-butan-1-one
[0406] ##STR503##
[0407] A mixture of 2-amino-3-hydroxy pyridine (25 g, 227 mmol),
triethylorthoformate (75 ml) and p-toluenesulfonic acid (61 mg) was
heated at 140.degree. C. for 8 hours. Excess triethylorthoformate
was removed under vacuum. The product was crystallized from ethyl
acetate to yield 22.5 g of pyridyloxazole; H.sup.1 NMR
(DMSO-.delta.): 9.26 (1H, s), 8.78 (1H, d), 8.45 (1H, d), 7.7(1H,
dd); MS: 120.8 (M+1).
[0408] Pyridyloxazole (600 mg, 5 mmol) in 30 ml THF was cooled to
0.degree. C. before the addition of isopropanyl magnesium chloride
(2M in THF, 2.5 ml, 5 mmol). After stirring for 1 hour at 0.degree.
C., the aldehyde (573 mg, 3 mmol) in 20 ml THF was added. The ice
bath was removed and the reaction allowed to warm to room
temperature. The reaction mixture was stirred for 2 hours and
quenched with saturated ammonium chloride solution. Excess THF was
removed and the residue was extracted with EtOAc, washed with
brine, dried with anhydrous MgSO.sub.4, filtered and concentrated.
The crude residue was purified by chromatography to yield 383 mg
product; H.sup.1 NMR (DMSO-.delta.): 8.42(1H, m), 8.18(1H, m),
7.3(1H, m), 6.8, 6.6(1H, dd, d, OH, diastereomeric), 6.3, 6.02(1H,
d, d, NH, diastereomeric), 4.82, 4.5(1H, m, m, diastereomeric),
1.8-1.3(2H, m), 1.2, 1.05(9H, s,s, diastereomeric), 0.89(3H, m);
MS: 306.2(M-1), 308.6(M+1).
[0409] To a stirred solution of the pyridyloxazole (12 g, 100 mmol)
in THF (300 ml) was added n-BuLi (1.6M solution in 62.5 ml of
hexane) drop wise under N.sub.2 at -78.degree. C. After 1 hour,
MgBr.Et.sub.2O (25.8 g, 100 mmol) was added and the reaction
mixture was allowed to warm to -45.degree. C. for 1 hour before
being treated with 2-boc-amino-butyl-aldehyde (11.46 g, 60 mmol) in
THF (50 ml). The reaction mixture was stirred for 1 hour, quenched
with saturated NH.sub.4Cl, and extracted with ethyl acetate. The
organic layer was washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified by silica gel column
chromatography to yield
2-boc-amino-1-(5-pyridyloxazole-2-yl)-1-butanol (14.1 g).
[0410] 2-Boc-amino-1-(5-pyridyloxazole-2-yl)-1-butanol (311 mg, 1
mmol) and MeCl.sub.2 (5 ml) were mixed and TFA (1 ml) was added at
room temperature. After stirring for 1 hour, the solvent and excess
TFA were removed under vacuum to produce 355 mg of
2-amino-1-oxazolo[4,5-b]pyridin-2-yl-butan-1-one TFA salt.
Reference 18
2-Amino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-one
[0411] ##STR504##
[0412] A mixture of the isonicotinic hydrazide (13.7 g, 100 mmol),
triethylorthoformate (60 ml) and p-toluenesulfonic acid (30 mg) was
heated at 130.degree. C. for 12 hours. Excess triethylorthoformate
was removed under vacuum. The product was crystallized from ethyl
acetate to yield 14.8 g; H.sup.1 NMR (DMSO-.delta.): 9.46 (1H, s),
8.8 (2H, dd), 7.9 (2H, dd).
[0413] To a stirred solution of the oxadiazole (11.5 g, 78.2 mmol)
in THF (300 ml) was added 5 ml HMPA and n-BuLi (1.6M solution in
48.9 ml of hexane) drop wise under N.sub.2 at -78.degree. C. After
1 hour, MgBr.Et.sub.2O (20.2 g, 78.2 mmol) was added and the
reaction mixture was allowed to warm to -45.degree. C. for 1 hour
before being treated with 2-boc-amino-butylldehyde (9.7 g, 50.8
mmol) in THF (50 ml). The reaction mixture was stirred for 1 hour,
quenched with saturated NH.sub.4Cl, and extracted with ethyl
acetate. The organic layer was washed with brine, dried with
MgSO.sub.4 and concentrated. The residue was purified with silica
gel column chromatography to yield
2-bocamino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol (3.5
g); H.sup.1 NMR (DMSO-.delta.): 8.85-8.8(2H, m), 7.95-7.8(2H, m),
6.66(1H, d,), 6.19(1H, d), 4.96(1H, t), 3.75-3.6(1H, m),
1.72-1.6(1H, m), 1.5-1.35(1H, m), 1.27(9H, s), 0.87(3H, t); MS:
333.2 (M-1), 335.4 (M+1).
[0414]
2-Bocamino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol (334
mg, 1 mmol) and MeCl.sub.2 (5 ml) were mixed and TFA (0.5 ml) was
added at room temperature. After stirring for 1 hour, the solvent
and excess TFA were removed under vacuum to produce 350 mg of
2-amino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-one TFA
salt.
Reference 19
2-Amino-1-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-butan-1-one
[0415] ##STR505##
[0416] To a stirred solution of the
3-[1,3,4]oxadiazol-2-yl-pyridine (5 g, 34 mmol) in THF (100 ml) was
added 5 ml HMPA and n-BuLi (1.6M solution in hexane, 21.25 ml) drop
wise under N.sub.2 at -78.degree. C. After 1 hour, MgBr.Et.sub.2O
(8.77 g, 34 mmol) was added and the reaction mixture was allowed to
warm to -45.degree. C. for 1 hour before being treated with
2-boc-amino-butylldehyde (4.22 g, 22.1 mmol) in THF (20 ml). The
reaction mixture was stirred for 1 hour, quenched with saturated
NH.sub.4Cl, and extracted with ethyl acetate. The organic layer was
washed with brine, dried with MgSO.sub.4 and concentrated. The
residue was purified with silica gel column chromatography to yield
2-boc-amino-1-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol
(1.5 g); H.sup.1 NMR (DMSO-d): 9.2-9.1(1H, d), 8.82-8.76(1H, m),
8.4-8.3(1H, m), 7.68-7.6(1H, m), 6.78, 6.65(1H, dd, NH,
diastereomeric), 6.38, 6.16(1H, d,d, OH, diastereomeric),
3.8-3.6(1H, m), 1.9-1.2(2H, m), 1.3, 1.1 (9H, s,s,), 0.84(3H, t);
MS: 331.2 (M-1).
[0417]
2-Boc-amino-1-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol
(167 mg, 0.5 mmol) and MeCl.sub.2 (5 ml) were mixed and TFA (0.5
ml) was added at room temperature. After stirring for 1 hour, the
solvent and excess TFA were removed under vacuum to produce 180 mg
of 2-amino-1-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-butan-1-one TFA
salt.
Reference 20
2-Amino-1-benzooxazol-2-yl-butan-1-one
[0418] ##STR506##
[0419] Benzoxazole (600 mg, 5 mmol) in 20 ml THF was cooled to
-5.degree. C. and isopropyl magnesium chloride (2 M in THF, 2.5 ml,
5 mmol) was added. After stirring for 1 hour at -5.degree. C., the
aldehyde (561 mg, 3 mmol), prepared as in reference 15, in 10 ml
THF was added. The reaction was allowed to warm to room temperature
with stirring for 2 hours. The reaction was quenched with saturated
ammonium chloride solution, excess THF solvent removed. The residue
was extracted with EtOAc, washed with brine, dried with anhydrous
MgSO.sub.4, filtered and concentrated. The crude residue was
purified by chromatograph to yield 688 mg product (75%); LC-MS:
305.2 (M-1), 307.0 (M+1); H.sup.1NMR (DMSO-d.sub.6): 7.72-7.6 (2H,
m), 7.38-7.28 (2H, m), 6.7 (d)-6.52(d) (1H, NH, diastereomeric),
6.12(d)-5.92 (d) (1H, OH, diastereomeric), 4.81(dd)-4.57(dd) (1H,
CH--OH), 3.74 (1H, m), 1.9-1.6 (1H, m), 1.6-1.3 (1H, m),
1.25(s)-1.1(s) (9H, diastereomeric), 0.85 (3H, t).
[0420] [1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-carbamic acid
tert-butyl ester (275 mg, 0.89 mmol) and MeCl.sub.2 (5 ml) were
mixed and TFA (1 ml) was added at room temperature. After stirring
for 1 hour, the solvent and excess TFA were removed under vacuum to
produce 260 mg of 2-amino-1-benzooxazol-2-yl-butan-1-one TFA
salt.
Reference 21
2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid
[0421] ##STR507##
[0422] A 0.05 M solution of
1-(4-benzyl-2-oxo-oxazolidin-3-yl)-2-cyclohexylmethyl-4-morpholin-4-yl-bu-
tane-1,4-dione (1 g) in 3:1-THF/H.sub.2O was treated at 0.degree.
C. with 8 equivalents of 30% H.sub.2O.sub.2 followed by 2.0
equivalents of LiOH. The resulting mixture was stirred at
0-25.degree. C. until the substrate had been consumed
(approximately 1 hour). The excess peroxide was quenched at
0.degree. C. with a 10% excess of 1.5 N aqueous Na.sub.2SO.sub.3.
After buffering to pH 9-10 with aqueous NaHCO.sub.3 and evaporation
of the THF, the oxazolidone chiral auxiliary was recovered by
MeCl.sub.2 extraction. The carboxylic acid was isolated by EtOAc
extraction of the acidified (pH 1-2) aqueous phase, then
recrystallized from EtOAc and hexane to yield 0.58 g of
2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid; H.sup.1 NMR
(DMSO-.delta.): 12(1H, s, COOH), 3.6-3.3(8H, m), 2.8-2.3(3H, m),
1.8-1.1(11H, m), 0.9-0.7(2H, m); MS: 282.2(M-1), 284.1 (M+1).
Reference 22
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-4-oxo-butyric acid
[0423] ##STR508## (S)-(-)-4-Benzyl-2-oxazolidinone (5 g, 28.2 mmol)
was dissolved in THF (100 mL) and cooled to -78.degree. C. under
nitrogen. A 2.5M solution of n-butyllithium in hexane (12.4 mL) was
added with a syringe and the mixture was stirred for 30 min.
4-Cyclohexyl-butyryl chloride (5.85 g, 31 mmol) was added at
-78.degree. C. The mixture was allowed to warm to 0.degree. C. over
two hours. 1N HCl (50 mL) was added and the product was extracted
with ethyl acetate (3.times.100 mL). The combined organic layers
were washed with saturated aqueous NaHCO.sub.3 (200 mL) and brine
(200 mL), dried with MgSO.sub.4 and evaporated under vacuum. The
product was recrystallized from hexane/ether and obtained as a
white solid (5.6 g).
[0424] A solution of diisopropylamine (1.92 mL, 13.68 mmol) in dry
THF (50 mL) was cooled to -20.degree. C. A 2.5M solution of
n-butyllithium in hexane (4.4 mL) was added with a syringe. The
mixture was stirred for 30 min and then cooled to -78.degree. C. A
solution of 4-benzyl-3-(4-cyclohexyl-butyryl)-oxazolidin-2-one (3
g, 9.12 mmol) in THF (10 mL) was added slowly over 3 min. Stirring
was continued for 30 min, then a solution of
2-Bromo-1-morpholin-4-yl-ethanone (2.28 g, 10.94 mmol) in THF (4
mL) was added over 3 min. The mixture was allowed to come to room
temperature over 5 h. 1N HCl (50 mL) was added and the product was
extracted with ethyl acetate (3.times.100 mL). The combined organic
layers were washed with saturated aqueous NaHCO.sub.3 (200 mL) and
brine (200 mL), dried with MgSO.sub.4 and evaporated under vacuum.
The product
(1-(4-benzyl-2-oxo-oxazolidin-3-yl)-2-(2-cyclohexyl-ethyl)-4-morpholin-4--
yl-butane-1,4-dione) was obtained after purification by flash
chromatography as a single diastereomer (2.5 g). .sup.1H NMR:
(CDCl.sub.3) 7.35-7.22 (m, 5H), 4.69-4.62 (m, 1H), 4.28-4.10 (m,
3H), 3.76-3.46 (m, 8H), 3.37 (d, J=13.6 Hz, 1H), 2.91 (ddd, J=16.4
Hz, J=13 Hz, J=3 Hz, 1H), 2.76 (ddd, J=13.5 Hz, J=11 Hz, J=3 Hz,
1H), 2.51 (dt, J=13.6 Hz, J=3 Hz, 1H), 1.76-0.80 (m, 15H). MS:
(M+H).sup.+ 457.
[0425]
1-(4-Benzyl-2-oxo-oxazolidin-3-yl)-2-(2-cyclohexyl-ethyl)-4-morpho-
lin-4-yl-butane-1,4-dione (2.5 g, 5.48 mmol) was dissolved in a
3:1-THF/H.sub.2O mixture (50 mL) and cooled to 0.degree. C.
H.sub.2O.sub.2 (5 mL) was added followed by lithium hydroxyde
monohydrate (462 mg, 11 mmol). The mixture was stirred at 0.degree.
C. for 30 min. Excess peroxide was quenched with 1.5N
Na.sub.2SO.sub.3 solution and the THF was evaporated under vacuum.
The chiral auxiliary was removed by extraction with diethyl ether.
After acidification to pH 1 the product was isolated by extraction
with ethyl acetate. The combined organic layers were washed with
saturated aqueous NaHCO.sub.3 (200 mL) and brine (200 mL), dried
with MgSO.sub.4 and evaporated under vacuum. The crude acid
((2R)-2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-4-oxo-butyric acid)
was used for coupling (EDC) and oxidation (Dess-Martin) as
described in the examples, infra.
[0426]
(2R)-1-((4S)-4-Benzyl-2-oxo-oxazolidin-3-yl)-2-cyclohexylmethyl-4--
morpholin-4-yl-butane-1,4-dione was prepared by the same procedure
as described for reference 22. 4-Cyclohexyl-butyryl chloride was
substituted by 3-cyclohexyl-propionyl chloride. .sup.1H NMR: (DMSO)
7.35-7.22 (m, 5H), 4.63-4.56 (m, 1H), 4.28 (t, J=8.5 Hz, 1H),
4.17-4.06 (m, 2H), 3.70-3.35 (m, 8H), 2.94 (d, J=13.2 Hz, 1H), 2.82
(dd, J=13.2 Hz, J=8 Hz, 1H), 2.72 (dd, J=16 Hz, J=10.4 Hz, 1H),
2.51 (dd, J=16 Hz, J=3.2 Hz, 1H), 1.75-0.75 (m, 13H); MS:
(M+H).sup.+ 443.
Reference 23
N-Isopropyl-2-benzylsulfonylmethyl-succinamic acid
[0427] ##STR509##
[0428] To a stirring mixture of itacconic anhydride (1.1209 g, 10
mmol) in 10 ml of methylene chloride at 0.degree. C. was added drop
wise isopropyl amine (0.85 ml, 10 mmol). The reaction was stirred
at room temperature for 1 hour and the solvent was removed under
reduced pressure to give 2-(isopropylcarbamoyl-methyl)-acrylic
acid. The residue was dissolved in 10 ml of DMF, then benzyl
mercaptan (1.17 g, 10.0 mmol) and DMAP (122 mg, 1 mmol) were added
and the reaction was stirred at room temperature for overnight. The
mixture containing 2-benzylsulfanylmethyl-N-isopropyl-succinamic
acid was cooled to 0.degree. C. and oxone.RTM. (4.9182 g, 8 mmol)
in 20 ml of water was added and stirred for 2 hours at room
temperature. More oxone.RTM. was added and the reaction was stirred
at room temperature for 18 hours. The reaction was filtered and the
white solid was washed with water, ether and dried under high
vacuum to give 1.0 grams of
N-isopropyl-2-benzylsulfonylmethyl-succinamic acid, which was used
without further purification; LCMS retention time 2:32 minutes:
MS+1 (328.1).
Reference 24
4-(4-Methyl-piperazin-1-yl)-4-oxo-2-benzylsulfonylmethyl-butyric
acid
[0429] ##STR510##
[0430] To a stirring mixture of itacconic anhydride 1.1209 g, 10
mmol) in 10 ml of methylene chloride at 0.degree. C. was added drop
wise methyl piperizine (1.0 g, 10 mmol). The reaction was stirred
at room temperature for 1 hour and the solvent was removed under
reduced pressure to give compound
2-[2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]-acrylic acid. The
residue was dissolved in 10 ml of DMF, then benzyl mercaptan (1.17
g, 10.0 mmol) and DMAP (122 mg, 1 mmol) were added and heated to
50-60.degree. C. until reaction turned clear then the reaction was
stirred at room temperature for overnight. Another 0.59 ml of
benzyl mercapton (5 mmol) was added and the reaction was stirred
overnight at room temperature. The mixture containing compound
2-benzylsulfanylmethyl-4-(4-methyl-piperazin-1-yl)-4-oxo-butyric
acid was cooled to 0.degree. C. and oxone.RTM. (6.1378 g, 10 mmol)
in 20 ml of water was added and stirred for overnight at room
temperature. More oxone.RTM. was added and the reaction was stirred
at room temperature for 2 hours. The reaction was filtered and the
product was in the aqueous phase and was purified on HPLC to give
0.2477 gram of pure
4-(4-methyl-piperazin-1-yl)-4-oxo-2-benyzlsulfonylmethyl-butyric
acid; LCMS retention time: 1.72 minutes; M+1 (369.3).
Reference 25
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
[0431] ##STR511##
[0432] Reference 25 was synthesized as described in the following
reaction protocol: ##STR512##
2-(2-Morpholin-4-yl-2-oxo-ethyl)-malonic acid diethyl ester (1)
[0433] To a solution of n-tetra butyl ammonium hydrogen sulfate
(1.18 g, 3.48 mmol) and NaOH (560 mg, 13.9 mmol) in water (8 ml)
was added a solution of 4-(2-bromoacetyl morpholine) (1.45 g, 6.97
mmol) and diethyl malonate (1.34 g, 8.36 mmol) in DCM (8 ml). The
mixture was stirred at room temperature for 3 hours, diluted with
water (30 ml) and extracted with DCM (2.times.30 ml). The organic
layer was dried (MgSO.sub.4) and concentrated in vacuum. The
residue was purified by chromatography (silica) eluting with 1:2
v/v ethyl acetate-heptane to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-malonic acid diethyl ester as a
colorless oil (1.19 g, 59%); .sup.1H NMR (CDCl.sub.3) 4.25 (m, 4H),
4.0 (t, J=7.2 Hz, 1H), 3.8-3.45 (m, 8H), 3.0 (d, J=7.4 Hz, 2H), 1.3
(t, J=7.11 Hz, 6H).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-allyl)-malonic acid
diethyl ester (2)
[0434] To a mixture of Pd(OAc).sub.2 (17.5 mg, 0.078 mmol) and
PPh.sub.3 (40.9 mg, 0.156 mmol) in dry THF (2 ml) under N.sub.2,
cinnamyl alcohol (105.1 mg, 0.78 mmol) was added followed by a
solution of 2-(2-morpholin-4-yl-2-oxo-ethyl)-malonic acid diethyl
ester (250 mg, 0.87 mmol) and NaH (17.4 mg, 0.43 mmol) in dry THF
(3 ml). BF.sub.3 (1M in THF, 1 ml, 1 mmol) was then added and the
yellow solution was stirred at room temperature for 6.5 hours. The
mixture was diluted with ethyl acetate (50 ml) and washed with 1N
HCl (10 ml) and brine (2.times.20 ml). The organic layer was dried
(MgSO.sub.4), concentrated in vacuum and purified by chromatography
eluting with 1:1 v/v ethyl acetate-heptane mixture to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-allyl)-malonic acid
diethyl ester as a thick, yellow oil (266.5 mg, 85%); .sup.1H NMR
(CDCl.sub.3) 7.25 (m, 5H), 6.40 (d, J=15.6 Hz, 1H), 6.1 (dt,
J=15.8, 7.7 Hz), 4.2 (q, J=7.1 Hz, 4H), 3.6 (m, 6H), 3.45 (m, 2H),
3.05 (d, J=7.6 Hz, 2H), 3.0 (s, 2H), 1.25 (t, J=7.1 Hz, 6H). MS:
404 (MH.sup.+)
2-(2-Morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
diethyl ester (3)
[0435] A solution of
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-allyl)-malonic acid
diethyl ester (257 mg, 0.637 mmol) in EtOH (15 ml) was hydrogenated
over Pd/C at 55 Psi for 7.5 hrs. The catalyst filtered off over a
pad of Celite and the filtrate evaporated under vacuum to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
diethyl ester as a light yellow oil (260 mg); .sup.1H NMR
(CDCl.sub.3) 7.4-7.1 (m, 5H), 4.20 (q, J=7.1 Hz, 4H), 3.7-3.4 (m,
8H), 3.0 (s, 2H), 2.6 (t, J=7.6 Hz, 2H), 2.2 (m, 2H), 2.55 (m, 2H),
1.20 (t, J=7.1 Hz, 6H). MS: 406 (MH.sup.+).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
monoethyl ester (4)
[0436] To a solution of
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
diethyl ester (934 mg, 2.3 mmol) in a 2:1 mixture of ethanol and
water (12 ml) LiOH.H.sub.2O (193.3 mg, 4.61 mmol) was added and
heated at 40.degree. C. for 19 hrs. Ethanol was evaporated under
reduced pressure, the residual aqueous mixture was acidified to pH
1 and extracted with methylene chloride (2.times.40 ml). The
organic extract was dried with MgSO.sub.4 and evaporated under
reduced pressure to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
monoethyl ester as a thick, yellow oil (831 mg); .sup.1H NMR
(CDCl.sub.3) 7.4-7.1 (m, 6H), 4.25 (q, J=7.1 Hz, 2H), 3.8-3.4 (m,
8H), 3.20 (d, J=16.4 Hz, 1H), 2.9 (d, J=16.4 Hz, 1H), 2.6 (m, 2H),
2.1-1.8 (m, 4H), 1.25 (t, J=7.1 Hz, 3H). MS: 378 (MH.sup.+).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid ethyl
ester (5)
[0437] A Solution of
2-(2-morpholin-4-yl-2-oxo-ethyl)-2-(3-phenyl-propyl)-malonic acid
monoethyl ester (809 mg, 2.14 mmol) in toluene (25 ml) was heated
under reflux for 23 hours. The colorless solution was concentrated
under reduced pressure, the residue was taken up in diethyl ether
(50 ml), washed with saturated NaHCO.sub.3 and dried over
MgSO.sub.4. The solvent was evaporated under reduced pressure to
give 2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid ethyl
ester as yellow oil (617 mg); .sup.1H NMR (CDCl.sub.3) 7.3-7.1 (m,
5H), 4.2 (m, 2H), 3.8-3.4 (m, 8H), 3.0 (m, 1H), 2.75 (dd, J=15.9,
9.4 Hz, 1H), 2.65 (m, 2H), 2.35 (dd, J=15.9, 5.1 Hz, 1H), 1.8-1.55
(m, 4H), 1.29 (t, J=7.1 Hz, 3H). MS: 334 (MH.sup.+).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid (6)
[0438] To a solution of
2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid ethyl
ester (604 mg, 1.81 mmol) in a 2:1 mixture of MeOH--H.sub.2O (12
ml) LiOH.H.sub.2O (228 mg, 5.43 mmol) was added and stirred
overnight at room temperature. Ethanol was removed under reduced
pressure, residue diluted with water (40 ml) and washed with ether.
The aqueous layer was acidified to pH1 with 1N HCl and extracted
with diethyl ether (3.times.25 ml). The combined organic extracts
were dried with MgSO.sub.4 and concentrated under reduced pressure
to give 2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid as
a white solid (492 mg); .sup.1H NMR (CDCl.sub.3) 8.0-7.5 (1H),
7.4-7.1 (m, 5H), 3.8-3.4 (m, 8H), 3.0 (m, 1H), 2.8 (dd, J=16.4, 9.6
Hz, 1H), 2.65 (t, J=7.2 Hz, 2H), 2.40 (dd, J=16.4, 4.3 Hz, 1H),
1.9-1.5 (m, 4H). MS: 306 (MH.sup.+).
Reference 26
2-Amino-1-(5-phenyl-[1,2,4]oxadiazol-3-yl)-butan-1-ol
[0439] ##STR513##
[0440] Reference 26 was synthesized as described in the following
reaction protocol: ##STR514##
{1-[Hydroxy-(N-hydroxycarbamimidoyl)-methyl]-propyl}-carbamic acid
tert-butyl ester (2)
[0441] A solution of (2-cyano-1-ethyl-2-hydroxy-ethyl)-carbamic
acid tert-butyl ester (9.53 g, 44 mmol) in methanol (80 ml) was
cooled to 0.degree. C. and treated successively with hydroxylamine
hydrochloride (3.05, 44 mmol) in methanol (80 ml) and 25% sodium
methoxide solution in methanol (10.2 ml). Stirred at 0.degree. C.
for 5 minutes, cold bath removed and the reaction mixture stirred
at room temperature for 5 hours. Methanol evaporated off under
reduced pressure, crude partitioned between ethyl acetate and
water. Organic layer separated, dried (MgSO.sub.4) and evaporated
under reduced pressure to give yellow oil. Purified by mplc,
eluting with a mixture of ethyl acetate-heptane to give the title
compound as white solid (3.5 g); MS: M(H.sup.+) 248.
{1-[Hydroxy-(N-benzoyloxycarbamimidoyl)-methyl]-propyl}-carbamic
acid tert-butyl ester (3)
[0442] A solution of
{1-[hydroxy-(N-hydroxycarbamimidoyl)-methyl]-propyl}-carbamic acid
tert-butyl ester (2) (2.5 g, 10 mmol) in dichloromethyl (125 ml)
was treated with benzoic acid (1.36 g, 11 mmol), EDCI (2.14 g, 11
mmol), HOBT (1.37 g, 10 mmol) and triethylamine (1.35 ml, 11 mmol)
and stirred at room temperature overnight. Reaction mixture was
washed with saturated sodium bicarbonate solution and then water
and dried over Na.sub.2SO.sub.4. Solvent evaporated under reduced
pressure, crude purified by mplc eluting with 1% triethylamine in
2:3 v/v ethyl acetate and heptane mixture to give yellow solid (850
mg); MS: MH.sup.+ 352.
2-Amino-1-(5-phenyl-[1,2,4]oxadiazol-3-yl)-butan-1-ol (5)
[0443] A solution of (3) (1.5 g, 4.3 mmol) in diglyme was heated at
150.degree. C. in a microwave (Smith Creator, S00219) for 40
minutes. Solvent evaporated under vacuum in Genevac Evaporator at
80.degree. C. for 3 hours to give a brown solid. This was taken in
dichloromethyl (40 ml) and treated with trifluoroacetic acid at
room temperature for 2 hours. Solvent evaporated to dryness under
reduced pressure, crude taken in water, washed with DCM, aqueous
layer basified with 1M NaOH solution and extracted with
dichloromethyl. Organic layer dried over Na.sub.2SO.sub.4 to give
pale brown solid (300 mg); .sup.1HNMR (CDCl.sub.3) 8.14-8.10 (m,
2H), 7.59-7.47 (m, 3H), 4.83 & 4.65 (d, J=5 Hz, 1H), 3.18-3.05
(2m, 1H), 1.71-1.20(m, 2H), 1.05-0.97 (dt, J=7.2 Hz, 3H).
Reference 27
3-Benzylsulfonyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
(27a)
[0444] ##STR515##
3-(Propane-1-sulfonyl)-2-(tetrahydro-pyran-4-yloxymethyl)-propionic
acid (27b)
[0445] ##STR516##
[0446] Compounds 27a and 27b were synthesized according to the
following protocol: ##STR517##
2-(Tetrahydro-pyran-4-yloxymethyl)-acrylic acid ethyl ester (1)
[0447] NaH added to a solution of 4-hydroxy tetrahydropyran (5 g,
49 mmol) in THF (40 ml) stirred at room temperature for 30 minutes.
A solution of ethyl 2-(bromomethyl) acrylate (9.6 g, 49 mmol) in
THF (30 ml) was added and stirred at room temperature overnight.
Reaction mixture cooled in ice, quenched with saturated NH.sub.4Cl
solution and extracted with ethyl acetate. Organic extracts dried,
(Na.sub.2SO.sub.4) and purified by mplc eluting with 1:9 to 2:8 v/v
ethyl acetate-heptane mixture to give the title compound as yellow
oil (6.56 g, 61%). MS: MH.sup.+ 215; LCMS retention time 3.29
minutes.
3-Benzylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
ethyl ester (2a)
[0448] A suspension of 2-(tetrahydro-pyran-4-yloxymethyl)-acrylic
acid ethyl ester (2.2 g, 10.2 mmol) in ethanol (100 ml) was treated
with a solution of NaHCO.sub.3 (0.86 g, 10.2 mmol) in water ml (10
ml) and benzyl mercapton (1.21 ml, 10.2 mmol) at room temperature
overnight. Ethanol evaporated off under reduced pressure, crude
partitioned between ethyl acetate and water, organic layer
separated and purified by mplc eluting with 1:9 to 2:8 v/v ethyl
acetate-heptane mixture to give the title compound as pale yellow
oil (1.27 g). MS: 339 (MH.sup.+); LCMS (Protocol B) retention time
4.3 minutes.
[0449] By using ethylmercapton
3-ethylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
ethyl ester (2b) was similarly prepared; MS: 281 (MH.sup.+); LCMS
retention time 3.9 minutes.
3-Benzylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
(3a)
[0450] A solution of
3-benzylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
ethyl ester (1.27 g) in ethanol (30 ml) was treated with 2N NaOH
(9.4 ml) overnight. Usual water work up gave the title compound as
white solid; MS: 333 (M+Na), 311 (M+1); LCMS retention time 3.7
minutes.
[0451] 3-Ethylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic
acid (3b) was similarly prepared by using
3-ethylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
ethyl ester.
3-Benzylsulfonyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
(27a)
[0452] A solution of
3-Benzylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
(1.16 g, 3.7 mmol) in a mixture of MeOH (10 ml) and water (30 ml)
was treated oxone (3.5 g, 5.6 mmol) overnight. Methanol evaporated
off under reduced pressure, aqueous layer extracted with ethyl
acetate, dried (Na.sub.2SO.sub.4) and evaporated under reduced
pressure to give the title compound as white solid (1.36 g); MS:
365 (M+Na), 343 (MH.sup.+); LCMS retention time 3.1 minutes.
[0453] 3-ethylsulfonyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic
acid (27b) was similarly prepared from
3-ethylsulfanyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid;
MS: 303 (M+Na), 281 (MH.sup.+); LCMS retention time 2.3
minutes.
Reference 28
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (28a);
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28b);
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyric
acid (28c); and
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28d)
[0454] ##STR518##
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (28a)
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28b)
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyric
acid (28c)
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28d)
[0455] Compounds 28a, b, c and d were synthesized according to the
following protocol: ##STR519##
Synthesis of 2-(2-morpholin-4-yl-2-oxo-ethyl)-acrylic acid (1)
[0456] Morpholine (20 mL, 228.6 mmol) was slowly added to a
stirring solution of itaconic anhydride (25.1 g, 228.6 mmol)
suspended in dichloromethyl at 0.degree. C. The reaction mixture
was allowed to slowly warm to room temperature. Upon completion
(LCMS), volatiles were removed by vacuum under reduced pressure.
Crude yield: 44.96 g, 99%. Product was used without further
purification.
Synthesis of 2-Acetylsulfanylmethyl-4-morpholin-4-yl-4-oxo-butyric
acid (2)
[0457] 2-(2-morpholin-4-yl-2-oxo-ethyl)-acrylic acid (55.19 g,
277.0 mmol) was dissolved in 120 mL DMF and set to stir at room
temperature. Potassium thioacetate (25 g, 219.0 mmol) was added in
one portion, and the reaction mixture was allowed to stir at
ambient temperature for 20 hours. Upon completion (LCMS), DMF was
removed by vacuum under reduced pressure. Crude Yield: 75 g.
Percent Purity (LCMS): 40%. The crude product was used without
further purification.
Synthesis of 4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric
acid (28a)
[0458] 4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid
(8.078 g, 29.37 mmol) was dissolved in 100 mL dry EtOH and set to
stir at room temperature. NaOH pellets (3.52 g, 88.0 mmol) were
added in one portion, and the reaction mixture was allowed to stir
for 10 minutes. Benzyl bromide (3.18 mL, 26.7 mmol) was then added,
and the reaction mixture was allowed to stir at ambient temperature
for 20 hours. Upon completion (LCMS), the reaction mixture was
diluted with water and the pH was lowered to .about.pH2. The
reaction mixture was then washed 3.times. with EtOAc. The organic
phase was concentrated in vacuo and then diluted with 200 mL
aqueous MeOH. Oxone.RTM. (10.78 g, 16.58 mmol) was added in one
portion and the reaction was stirred at room temperature for 4
hours. Conversion of sulfide to sulfone was monitored via LCMS.
Upon completion, reaction was quenched by the addition of sodium
thiosulfate. Salts were filtered and the reaction mixture was
washed 3.times. with ethyl acetate and dried over sodium sulfate.
The organics were evaporated by vacuum under reduced pressure. The
crude solid was crystallized from EtOAc. Yield 1.3 g Percent Purity
(NMR): 99%. m/z (LCMS) M.sup.+ 356.01. .delta..sub.H 12.6 (1H, br
s), 7.4 (5H, m), 4.5 (2H, s), 3.5 (4H, m), 3.5 (1H, m), 3.4 (4H,
m), 3.2 (2H, d), 2.75 (2H, d).
Synthesis of
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28b)
[0459] 4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid
(10.90 g, 40.15 mmol) was dissolved in 100 mL dry EtOH and set to
stir at room temperature. NaOH pellets (4.81 g, 120.45 mmol) were
added in one portion, and the reaction mixture was allowed to stir
for 10 minutes. 1-Bromo-2-methyl propane (5.0 g, 36.49 mmol) was
then added, and the reaction mixture was allowed to stir at ambient
temperature for 20 hours. Upon completion (LCMS), the reaction
mixture was diluted with water and the pH was lowered to
.about.pH2. The reaction mixture was then washed 3.times. with
EtOAc. The organic phase was concentrated in vacuo and then diluted
with 200 mL aqueous MeOH. Oxone (10.02 g, 14.57 mmol) was added in
one portion and the reaction was stirred at room temperature for 4
hours. Conversion of sulfide to sulfone was monitored via LCMS.
Upon completion, reaction was quenched by the addition of sodium
thiosulfate. Salts were filtered, and the reaction mixture was
washed 3.times. with ethyl acetate and dried over sodium sulfate.
The organics were evaporated by vacuum under reduced pressure.
Product was purified via HPLC. Yield: 1.1 g, 23.1%. m/z (LCMS)
M.sup.+ 322.01, R.sub.f=2.03. .delta..sub.H 12.6 (1H, brs), 3.5
(4H, m), 3.5 (1H, m), 3.4 (4H, m), 3.25 (2H, d), 3.0 (2H, m), 2.9
(2H, d), 2.4 (1H, m), 1.3 (6H, d d).
Synthesis of
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyric
acid (28c)
[0460] 4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid
(11.16 g, 40.74 mmol) was dissolved in 100 mL dry EtOH and set to
stir at room temperature. NaOH pellets (4.81 g, 120.25 mmol) were
added in one portion, and the reaction mixture was allowed to stir
for 10 min. Bromomethylcyclopropane (5.0 g, 37.04 mmol) was then
added, and the reaction mixture was allowed to stir at ambient
temperature for 20 hours. Upon completion (LCMS), the reaction
mixture was diluted with water and the pH was lowered to
.about.pH2. The reaction mixture was then washed 3.times. with
EtOAc. The organic phase was concentrated in vacuo and then diluted
with 200 mL aqueous MeOH. Oxone (15.6 g, 24.0 mmol) was added in
one portion and the reaction was stirred at room temperature for 4
h. Conversion of sulfide to sulfone was monitored via LCMS. Upon
completion, reaction was quenched by the addition of sodium
thiosulfate. Salts were filtered, and the reaction mixture was
washed 3.times. with ethyl acetate and dried over sodium sulfate.
The organics were evaporated by vacuum under reduced pressure.
Product was purified via HPLC. Yield: 1.2 g, 15.1%. m/z (LCMS)
M.sup.+ 320.1, R.sub.f=1.84. .delta..sub.H 12.6 (1H, br s), 3.5
(4H, m), 3.5 (1H, m), 3.4 (4H, m), 3.25 (2H, d), 3.0 (2H, m), 2.9
(2H, d), 2.4 (1H, m), 1.1 (1H, m), 0.62 (2H, q), 0.38 (2H, q).
Synthesis of
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (28d)
[0461] 4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid
(1.27 g, 4.64 mmol) was dissolved in 50 mL dry EtOH and set to stir
at room temperature. NaOH pellets (556 mg, 13.92 mmol) were added
in one portion, and the reaction mixture was allowed to stir for 10
min. 2-(Difluoromethoxy)-benzyl bromide (1.00 g, 4.219 mmol) was
then added, and the reaction mixture was allowed to stir at ambient
temperature for 20 h. Upon completion (LCMS), the reaction mixture
was diluted with water and the pH was lowered to -2. The reaction
mixture was then washed 3.times. with EtOAc. The organic phase was
concentrated in vacuo and then diluted with 100 mL aqueous MeOH.
Oxone (1.58 g, 2.43 mmol) was added in one portion and the reaction
was stirred at room temperature for 4 h. Conversion of sulfide to
sulfone was monitored via LCMS. Upon completion, reaction was
quenched by the addition of sodium thiosulfate. Salts were
filtered, and the reaction mixture was washed 3.times. with ethyl
acetate and dried over sodium sulfate. The organics were evaporated
by vacuum under reduced pressure. Product was purified via HPLC.
Yield: 195 mg, 19.0%. m/z (LCMS) M.sup.+ 422.1. R.sub.f=2.42.
.delta..sub.H 12.6 (1H, br s), 7.6-7.2 (4H, m), 7.19 (1H, s) 4.5
(2H, s), 3.5 (4H, m), 3.5 (1H, m), 3.4 (4H, m), 3.2 (2H, d), 2.75
(2H, d).
Reference 29
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid (5a)
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-
-oxo-ethyl)-pentanoic acid (5b)
(R)-2-((S)-1-Fluoro-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid (5c)
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-fluoro-2-morpholin-4-yl-2--
oxo-ethyl)-pentanoic acid (5d)
[0462] ##STR520##
[0463] Compounds 5a, 5b, 5c and 5d were prepared according to the
following reaction protocol: ##STR521##
(S)-3-Acetoxy-4-morpholin-4-yl-4-oxo-butyric acid (1a) &
(S)-2-Acetoxy-4-morpholin-4-yl-4-oxo-butyric acid (1b)
[0464] Morpholine (14.48 ml) and Triethylamine (23.14 ml, 166 mmol)
were added to an ice-cold solution of acetic acid
(S)-2,5-dioxo-tetrahydro-furan-3-yl ester (25 g, 158.12 mmol) in
dry THF (600 ml) and the solution was stirred at room temperature
over the week-end. Solvent was evaporated under reduced pressure,
residue diluted with water, acidified to pH 2 with 1N HCl and
extracted with ethyl acetate. Combined organic extracts were dried
over MgSO.sub.4 and evaporated under reduced pressure to give a
mixture of(S)-3-acetoxy-4-morpholin-4-yl-4-oxo-butyric acid and
2-acetoxy-4-morpholin-4-yl-4-oxo-butyric acid (14 g) as colorless
oil. MS: 246 (MH.sup.+).
(S)-3-Hydroxy-4-morpholin-4-yl-4-oxo-butyric acid methyl ester
(2a)
[0465] To a mixture of (S)-3-acetoxy-4-morpholin-4-yl-4-oxo-butyric
acid and 2-Acetoxy-4-morpholin-4-yl-4-oxo-butyric acid (11 g, 44.8
mmol) in dry methanol (30 ml) HCl in dioxane (4M, 7.3 ml, 29.16
mmol) was added and stirred at room temperature for 5 hrs. The
reaction mixture was neutralized with solid NaHCO.sub.3, filtered
through a mixture of Celite/Na.sub.2SO.sub.4 (1:1) and concentrated
under reduced pressure to give a mixture of
(S)-3-Hydroxy-4-morpholin-4-yl-4-oxo-butyric acid methyl ester and
(S)-2-Hydroxy-4-morpholin-4-yl-4-oxo-butyric acid methyl ester.
Column chromatography on silica eluting with a mixture of ethyl
acetate and methylene chloride gave
(S)-3-Hydroxy-4-morpholin-4-yl-4-oxo-butyric acid methyl ester, (6
g) as white solid; .sup.1H NMR (CDCl.sub.3) .delta. 2.62 (d, J=8
Hz, 2H), 3.78-3.44 (m, 11H), 3.76 (d, J=9 Hz, 1H), 4.8-4.73 (m,
1H); MS: 218(MH.sup.+).
(E)-(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pent-4-eno-
ic acid methyl ester (3a)
[0466] Lithium hexamethyldisilazide (1M in THF, 14.5 ml, 14.5 mmol)
was added to a solution of
(S)-3-Hydroxy-4-morpholin-4-yl-4-oxo-butyric acid methyl ester (1.5
g, 6.9 mmol) in dry THF (15 ml) at -78.degree. C. under N.sub.2 and
stirred for 30 min. Cinnamyl bromide (1.6 g, 7.32 mmol) was then
added, the reaction mixture stirred at -78.degree. C. for 2 hrs,
warmed up to room temperature and stirred overnight at room
temperature. The reaction was quenched with saturated ammonium
chloride solution, adjusted the pH to 6 with 1N HCl and extracted
with ethyl acetate. Combined ethyl acetate extracts were dried over
MgSO.sub.4 and concentrated under reduced pressure to give pale
brown solid. Column chromatography on silica eluting with a mixture
of ethyl acetate and methylene chloride gave the title compound as
pale, yellow solid (1.15 g).
(E-(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-ox-
o-ethyl)-pent-4-enoic acid methyl ester (3b)
[0467] Similarly prepared according to the procedure above but
replacing cinnamyl bromide with
1-((E)-3-Bromo-propenyl)-2-difluoromethoxy-benzene.
(2R,3S)-2-Benzyl-3-hydroxy-4-morpholin-4-yl-4-oxo-butyric acid
methyl ester (3c)
[0468] Similarly prepared according to the procedure above but
replacing cinnamyl bromide with benzyl bromide.
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid methyl ester (4a)
[0469] A solution of
(E)-(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pent-4-en-
oic acid methyl ester (1.55 g, 4.65 mmol) in methanol (15 ml) was
hydrogenated at 50 psi over Pd/C for 4 hrs. The catalyst was
removed by filtration through celite and the filtrate concentrated
under reduced pressure to give
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid methyl ester as pale, brown solid (1.45 g); .sup.1H NMR
(CDCl.sub.3) .delta. 1.90-1.65 (m, 4H), 2.62-2.75 (m, 3H),
3.75-3.40 (m, 11H), 4.0 (d, J=15 Hz, 1H), 4.47-4.4.39 (m, 1H),
7.38-7.15 (m, 5H); MS: 336(M.sup.+).
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo-e-
thyl)-pentanoic acid methyl ester (4b)
[0470] Similarly prepared according to the procedure above but
using
(E)-(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2--
oxo-ethyl)-pent-4-enoic acid methyl ester; .sup.1H NMR (CDCl.sub.3)
.delta. 1.93-1.58 (m, 4H), 2.78-2.58 (m, 3H), 3.80-3.42 (m, 11H),
4.03 (m, 1H), 4.44 (m, 1H), 6.53 (t, J=74 Hz, 1H), 7.25-7.04 (m,
4H); MS: 402(MH.sup.+).
(S)-2-((R)-1-Fluoro-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid methyl ester (4c)
[0471] (Diethylamino) sulfur trifluoride (2.0 ml, 15.2 mmol) was
added to a ice cold solution of
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid methyl ester (4a) (0.85 g, 2.5 mmol) in dry methylene chloride
(15 ml) and the reaction mixture was stirred overnight while
warming to room temperature. The reaction was quenched with aqueous
NaHCO.sub.3 solution and extracted with methylene chloride. The
organic extracts were dried over Na2SO.sub.4 and concentrated under
reduced pressure. Column chromatography on silica eluting with a
mixture of ethyl acetate and methylene chloride gave the title
compound as an off-white solid (230 mg). .sup.1H NMR (CDCl.sub.3)
.delta. 1.90-1.58 (m, 4H), 2.78-2.57 (m, 2H), 3.28-3.10 (m, 1H),
3.75 (s, 3H), 3.74-3.45 (m, 8H), 5.40-5.12 (m, 1H), 7.35-7.18 (m,
5H); MS: 338(MH.sup.+).
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid (5a)
[0472] A solution of
(R)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid methyl ester (230 mg, 0.69 mmol) and LiOH.H.sub.2O (57.5 mg,
1.37 mmol) in a mixture of THF and water (2:1, 6 ml) was stirred at
room temperature for 2.5 hrs. The reaction was diluted with water
and THF removed under reduced pressure. The pH of the aqueous
solution was adjusted to pH5 with 1N HCl and extracted with ethyl
acetate. The combined organic extracts were dried over MgSO.sub.4
and evaporated under reduced pressure to give the title compound as
white solid (180 mg); .sup.1H NMR (CDCl.sub.3) .delta. 1.92-1.60
(m, 4H), 2.75-2.60 (m, 3H), 3.78-3.45 (m, 9H), 4.5 (d, J=8 Hz, 1H),
7.35-7.18 (m, 5H); MS: 322(MH.sup.+).
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo-e-
thyl)-pentanoic acid (5b)
[0473] Similarly prepared according to the procedure above but
using
(R)-5-(2-difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo--
ethyl)-pentanoic acid methyl ester; .sup.1H NMR (CDCl.sub.3)
.delta. 1.90-1.65 (m, 4H), 2.77-2.68 (m, 3H), 3.70-3.53 (m, 9H),
4.51 (d, J=4.4 Hz, 1H), 6.52 (t, J=74 Hz, 1H), 7.28-7.14 (m, 4H);
MS: 388(M.sup.+).
(2R,3S)-2-Benzyl-3-hydroxy-4-morpholin-4-yl-4-oxo-butyric acid
(5e)
[0474] Similarly prepared according to the general procedure above
but using (2R,3S)-2-Benzyl-3-hydroxy-4-morpholin-4-yl-4-oxo-butyric
acid methyl ester; .sup.1H NMR (CDCl.sub.3) .delta. 2.90 (m, 1H),
3.10 (m, 2H), 3.70-3.15 (m, 8H), 3.75 (m, 1H), 4.32 (d J=7.5 Hz,
1H), 7.38-7.25 (m, 5H); MS: 294 (Mt).
Reference 30
2-Amino-1-benzooxazol-2-yl-butan-1-one
[0475] ##STR522##
[0476] 2-Amino-1-benzooxazol-2-yl-butan-1-one was prepared
according to the following reaction protocol: ##STR523##
[1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-carbamic acid
tert-butyl ester (1a)
[0477] DIPEA (0.35 ml, 2 mmol) and di-tert-butyl dicarbonate (355
mg, 1.63 mmol) were added to a solution of
2-Amino-1-benzooxazol-2-yl-butan-1-ol (320 mg, 1.55 mmol) in dry
methylene chloride (10 ml) and stirred at room temperature for 4
hrs. The reaction was quenched with saturated aqueous NH.sub.4Cl
and the pH was adjusted to neutral. Organic layer separated and the
aqueous layer extracted with methylene chloride. The combined
organic extracts were dried over MgSO.sub.4 and concentrated under
reduced pressure to give,
1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-carbamic acid
tert-butyl ester (500 mg).
[1-(Benzooxazole-2-carbonyl)-propyl]-carbamic acid tert-butyl ester
(2a)
[0478] Dess-Martin Periodinane (15% in DCM, 3.1 mmol) was added to
a solution of, 1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-carbamic
acid tert-butyl ester in dry methylene chloride (15 ml) and stirred
at room temperature for 4 hrs. A solution of Na.sub.2S.sub.2O.sub.3
in aqueous NaHCO.sub.3 was added and stirred at room temperature.
Organic layer was separated and the aqueous was extracted with
methylene chloride. The combined organic extracts were dried over
Na.sub.2SO.sub.4 and concentrated under reduced pressure to give a
pale brown solid. Column chromatography on silica eluting with a
mixture of methylene chloride and heptane gave the title compound
as off white solid (380 mg).
2-Amino-1-benzooxazol-2-yl-butan-1-one hydrochloride (3a)
[0479] Hydrogen chloride in dioxane (1M, 1 ml) was added to a
solution of, 1-(Benzooxazole-2-carbonyl)-propyl]-carbamic acid
tert-butyl ester (2a) in dry methylene chloride (3 ml) and stirred
at room temperature for 4 hrs. Concentration under reduced pressure
gave the title compound as white solid (65 mg); .sup.1H NMR
(CDCl.sub.3) .delta. 0.99 (t, J=7.5 Hz, 3H), 2.20-2.05 (m, 2H),
4.96 (m, 1H), 7.58 (t, J=7.4 Hz, 1H), 7.69 (t, J=7.4 Hz, 1H), 7.94
(d, J=8.2 Hz, 1H), 8.04 (d, J=8.2 Hz, 1H), 8.75 (m, 3H); MS:
207(MH.sup.+).
(1-Amino-cyclopropyl)-oxazol-2-yl-methanone hydrochloride (3b)
[0480] .sup.1H NMR (DMSO) .delta. 1.79 (m, 2H), 1.22 (m, 2H), 7.58
(s, 1H), 8.49 (s, 1H), 9.22 (m, 3H); MS: 153(MH.sup.+).
Reference 31
2-Amino-1-oxazol-2-yl-butan-1-ol
[0481] ##STR524##
[0482] 2-Amino-1-oxazol-2-yl-butan-1-ol was prepared according to
the following reaction scheme: ##STR525##
Step 1
[0483] To a stirring solution of the BOC-L-x-aminobutyric acid (1,
17.75 g, 87.3 mmol) in dry methylene chloride (35 ml) was added
DIEA (33.45 ml) followed by the N,O-dimethylhydroxylamine
hydrochloride (9.37 g, 96.03 mmol) and PYBOP (50.0 g, 96.03 mmol).
The reaction mixture was stirred overnight at room temperature.
After the solvent was removed in vacuo, the oily residue was
dissolved in ether and the precipitate which formed was filtered
and the filtrate was concentrated to give 35.0 g of a brown oil.
The residue was dissolved in ethyl acetate and washed twice with
0.05N HCl, saturated sodium bicarbonate and brine. The organic
layer was dried over magnesium sulfate and concentrated to give
14.0 g of the product 2, which was used without further
purification.
Step 2
[0484] Compound 2 (8.4 g, 34.1 mmol) was then dissolved in 30 ml of
dry THF and cooled to -50.degree. C. under nitrogen, then LAH (1.0
M in THF, 37.5 ml, 37.51 mmol) was added drop wise over 30 minutes.
The reaction was stirred for 1.5 hours at -50.degree. C. then
allowed to warn to 0.degree. C. over 45 minutes. Then NaHSO4 (6.12
g, 44.33 mmol) was added slowly followed by cold water (2.0 ml) and
stirring was continued for 30 minutes. The reaction was filtered
through celite, which was washed with methylene chloride. The
volatiles were removed from the filtrate in vacuo. The solid
residue was dissolved in ethyl acetate and washed with cold 0.05N
HCl, water and brine. The organic layer was dried over magnesium
sulfate, filtered and concentrated to give 6.5 grams of compound 3
as colorless oil.
Step 3
[0485] Triethylborane (1.0 M in THF, 149.5 ml, 149.5 mmol) was
added to oxazole (10.33 g, 149.5 mmol) and stirred for 45 minutes
at room temperature. The mixture was then cooled to -78.degree. C.
and n-BuLi (2.5 M in hexane, 59.8 ml, 149.5 mmol) was added
dropwise and allowed to stir for one hour under nitrogen. Compound
3 (8.0 g, 42.7 mmol) was dissolved in 25 ml of THF and added to the
reaction mixture. The reaction was stirred for 5 hours at
-78.degree. C. then it was allowed to warm to 0.degree. C. for one
hour. The reaction was then cooled back to -78.degree. C. and
quenched with 7% acetic acid in ethanol (700 ml) which was allowed
to stir overnight at room temperature. The mixture was concentrated
in vacuo and the residue was dissolved in ether and filtered. The
filtrate was concentrated in vacuo and the residue was dissolved in
ethyl acetate washed twice with 0.005 N HCl, twice with sat'd
sodium bicarbonate and brine. The organic layer was dried over
magnesium sulfate, filtered and concentrated in vacuo. The residue
was purified on silica using 10-40% ethyl acetate/heptane to give
3.85 grams of pure product 4.
Step 4
[0486] To a solution of compound 4 (1.1 g, 4.29 mmol) in dry
methylene chloride (10.0 ml), stirring under nitrogen at room
temperature, was added 4M HCl (in dioxane, 10.73 ml) dropwise
followed by 5 ml of methanol. The reaction was stirred overnight
then concentrated in vacuo to give 1.2 grams of compound 5 as a
brown solid.
[0487] The following reference compounds were prepared according to
the protocol described in Reference 31:
2-Amino-3,3-dimethyl-1-oxazol-2-yl-butan-1-ol
[0488] ##STR526##
2-Amino-1-oxazol-2-yl-4-phenyl-butan-1-ol
[0489] ##STR527##
[0490] LCMS retention time 1.10 minutes; M+1 (233.1)
Reference 32
2-Amino-2-methyl-pentan-1-ol
[0491] ##STR528## 2-Amino-2-methyl-pentan-1-ol was prepared
according to the following reaction scheme: ##STR529##
Step 1
[0492] S-(+)-Phenylglycinol (1, 25 g, 182 mmol) was dissolved in
trifluoroethanol (250 ml) and ethyl pyruvate (23.3 g, 200 mmol) was
added (exothermic) followed by molecular seives (4 angstroms) and
the reaction was refluxed overnight. The reaction was filtered and
concentrated to an oil. The oil was purified on a 500 g silica gel
column and eluted with 3:1 heptane/ethyl acetate to give 19.94
grams of compound 2.
Step 2
[0493] Compound 2 (15.0 g, 79 mmol) was dissolved in THF (400 ml)
and cooled to -78.degree. C., the boron trifluoride etherate (22.4
g, 158 mmol) was added over a 15 minute period. The reaction was
allowed to stir at -78 degree C. for 2 hours and propyl magnesium
chloride (2.0 M in ether, 79 ml, 158 mmol) was added over a one
hour period and allowed to stir for 4 hours at -78.degree. C. The
reaction was allowed to warm to room temperature and stir
overnight. The mixture was carefully quenched with sat'd NaHSO4
until pH of 8 was obtained. The reaction was extracted with ethyl
acetate (2.times.200 ml), then washed with water, brine, dried over
sodium sulfate and concentrated to dryness. The residue was
purified on silica eluting with 4:1 heptane/ethyl acetate to give
12.2 grams of compound 3.
Steps 3 and 4
[0494] Compound 3 (9.0 g, 39 mmol) was dissolved in ethanol (100
ml) and water (20 ml) followed by the addition of 9 grams of
Pd(OH).sub.2 and TFA (4 ml). The mixture was hydrogenated at 50 psi
for 48 hours, then the reaction was filtered through celite which
was concentrated to give 9 grams of crude material 4 which was used
without further purification. Compound 4 was dissolved in dry
methanol (300 ml) and HCl gas was bubbled through for 15 minutes.
The reaction was stirred at room temperature for three days and was
concentrated. The crude product was purified on silica eluting With
1:1 heptane/ethyl acetate to give 3.9 grams of compound 5.
Step 5
[0495] A mixture of compound 5 (3.9 g, 27 mmol), (BOC)2O (5.88 g,
27 mmol), and TEA (7.56 ml, 54 mmol) in 100 ml of dioxane and 100
ml of water were stirred overnight at room temperature. The
reaction mixture was concentrated and dissolved in ethyl acetate
and washed with brine. The organic layer was dried over magnesium
sulfate, filtered and concentrated in vacuo. The crude product was
purified on silica eluting with 30 ethyl acetate/heptane to give
6.68 gram of pure product 6.
Step 6
[0496] A solution of compound 6 (6.68 g, 27 mmol) in 200 ml of THF
was cooled to 0.degree. C. and LAH (1.0M in THF, 32.4 ml, 32.4
mmol) was added dropwise and the reaction was stirred for 30
minutes then allowed to come to room temperature. The reaction was
stirred for another 30 minutes and the reaction was quenched with a
solution of NaHS04, the THF was removed in vacuo and the residue
was extracted with ethyl acetate which was washed with brine and
concentrated. The product was purified on silica eluting with
n-heptane to 5% methanol/ethyl acetate to give 2.8767 g of compound
7.
Step 7
[0497] Compound 7 (0.5 g) was dissolved in 5 ml of 4N HCL in
dioxane and stirred for 1 hour at room temperature. The reaction
was concentrated and dried under high vacuum to give 0.3859 g of
compound 8, which was used without further purification.
[0498] The following reference compounds were prepared according to
the protocol described in Reference 32:
2-Amino-2-methyl-4-phenyl-butan-1-ol
[0499] ##STR530##
2-Amino-2-methyl-butan-1-ol
[0500] ##STR531##
Reference 33
2-Amino-2-methyl-1-oxazol-2-yl-pentan-1-one
[0501] ##STR532##
[0502] 2-Amino-2-methyl-1-oxazol-2-yl-pentan-1-one was prepared
according to the following reaction scheme: ##STR533##
Step 1
[0503] A solution of oxalyl chloride (2.0M in CH.sub.2Cl.sub.2, 1.5
ml, 3 mmol) in 5 ml of methylene chloride was cooled to -78.degree.
C., then DMSO (0.44 ml) was added drop wise to the mixture and
allowed to stir for 5 minutes. A solution of compound 7 (Scheme 2,
0.4346 g, 2.0 mmol) in 10 ml of methylene chloride was added drop
wise. The reaction was stirred at -78 degree C. for 15 minutes and
TEA (1.12 ml, 8 mmol) was added dropwise and the reaction was
stirred for 2 hours at room temperature. The reaction was quenched
with water and the product was extracted with ethyl acetate, then
organic layer was washed with brine and the solvent was removed in
vacuo. The crude product was purified on silica eluting with
heptane to 10% ethyl acetate/heptane to give 0.3131 g of pure
compound 9.
Step 2
[0504] Triethylborane (1.0 M in THF, 4.84 ml, 4.84 mmol) was added
to oxazole (0.3355 g, 4.84 mmol) in 4 ml of THF and stirred for 30
minutes at room temperature. The mixture was then cooled to
-78.degree. C. and n-BuLi (1.6 M in hexane, 3.025 ml, 4.84 mmol)
was added dropwise and allowed to stir for one hour under nitrogen.
Compound 9 (0.2615 g, 1.21 mmol) was dissolved in 5 ml of THF and
added to the reaction mixture. The reaction was stirred for 5 hours
at -78.degree. C., then quenched with 5% acetic acid in ethanol (20
ml) which was allowed to stir overnight at room temperature and
concentrated in vacuo. Ether was added and the solid was filtered
and the filtrate was concentrated and the crude product was
purified on silica using 0-20% ethyl acetate/heptane to give 0.2528
grams of pure product 10.
Step 3
[0505] Dess-Martin periodinane (15% in CH2Cl2, 4.95 g, 1.8 mmol)
was added to a stirring added to a stirring solution of compound 10
(0.2528 g, 0.89 mmol) in 5 ml of methylene chloride. The reaction
was stirred at room temperature for 3 hours, then the reaction was
quenched with a solution of sodium thiosulfate in sat'd sodium
bicarbonate. The product was extracted with ethyl acetate and the
organic layer was washed with brine, dried over magnesium sulfate
and concentrated in vacuo. The residue was purified on silica
eluting with 1:1 ethyl acetate/heptane to 5% methanol/ethyl acetate
to give 0.2307 g of pure compound 11.
Step 4
[0506] Compound 11 (0.2123 g, 0.75 mmol) was dissolved in 5 ml of
4N HCL in dioxane and stirred for 1 hour at room temperature. The
reaction was concentrated and dried under high vacuum to give
0.1713 g of compound 8, which was used without further
purification.
[0507] The following reference compounds were prepared according to
the protocol described in Reference 33:
2-Amino-1-benzooxazol-2-yl-2-methyl-pentan-1-one
[0508] ##STR534##
[0509] LCMS retention time 2.45 minutes; M+1 (233.1).
2-Amino-1-benzooxazol-2-yl-2-methyl-4-phenyl-butan-1-one
[0510] ##STR535##
[0511] LCMS retention time 2.79 minutes; M+1 (295.1)
2-Amino-1-benzooxazol-2-yl-2-methyl-butan-1-one
[0512] ##STR536##
[0513] LCMS retention time 2.29 minutes; M+1 (219.1)
2-Amino-2-methyl-1-oxazol-2-yl-propan-1-one
[0514] ##STR537##
[0515] LCMS retention time 1.63 minutes; M+1 (155.1)
Reference 34
2-Amino-4-phenyl-butyramide
[0516] ##STR538##
[0517] 2-Amino-4-phenyl-butyramide was prepared according to the
following reaction scheme: ##STR539##
Step 1
[0518] Compound 1 (5 g, 15.5 mmol) was dissolved in dry ether (150
ml) and cooled to -20.degree. C., then perfluoroethyl iodide (25 g,
100 mmol) was bubbled into the mixture. The solution was then
cooled to -50.degree. C. and methyl lithium/lithium bromide complex
was added over a 30 minute period. The reaction was stirred for 1.5
hours at this temperature and was then quenched with acetone. After
stirring for 15 minutes the reaction was diluted with ether (100
ml) and poured onto 100 ml of water contain KHSO4. The organic
layer was separated and washed with water, brine, dried over sodium
sulfate and concentrated to dryness. The material was purified on
silica eluting with 1:1 ethyl acetate/heptane to give 1.7 grams of
compound 2.
Step 2
[0519] Compound 2 (0.35 g) was dissolved in 4 ml of 4N HCL in
dioxane and stirred for 1 hour at room temperature. The reaction
was concentrated and dried under high vacuum to give 0.2807 g of
compound 3 which was used without further purification; LCMS
retention time 4.19 minutes; M+1 (282.1).
Example 1
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyls-
ulfonylmethyl-propionamide
[0520] ##STR540##
[0521] A mixture comprised of
3-benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid (0.239 g,
0.719 mmol), prepared as in Reference 1, in methylene chloride (6
mL), HOBt hydrate (0.11 g, 0.719 mmol), EDC (0.18 g, 0.939 mmol),
hydroxy amine (0.19 g, 0.86 mmol) and 4-methylmorpholine (0.075 mL)
was stirred at room temperature for 1 hour and then poured into
cold 1N aqueous hydrochloric. The product was extracted with ethyl
acetate and the extracts were washed with saturated aqueous sodium
chloride and then dried over magnesium sulfate. The solvent was
removed by rotary evaporation at reduced pressure and the residue
was chromatographed on silica gel eluting with ethyl acetate/hexane
to give
N--[(S)-1-(1-Benzooxazol-2-yl-1-hydroxy-methyl)-butyl]-3-benzylsulfanyl-2-
-benzylsulfanylmethyl-propionamide (0.217 g).
[0522] A solution of
N--[(S)-1-(1-Benzooxazol-2-yl-1-hydroxy-methyl)-butyl]-3-benzylsulfanyl-2-
-benzylsulfanylmethyl-propionamide (0.317 g, 0.594 mmol) in
methanol (30 mL) was treated with a solution of Oxone.RTM. (0.913
g, 1.48 mmol) in water (20 mL) and then stirred at room temperature
for 7 hours. The methanol was removed by evaporation at reduced
pressure and the resulting suspension was diluted with water and
the product extracted with ethyl acetate. The extracts were washed
with saturated aqueous sodium chloride and then dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure and the residue was chromatographed on silica gel
eluting with ethyl acetate/hexane to give
N--[(S)-1-(1-Benzooxazol-2-yl-1-hydroxy-methyl)-butyl]-3-benzylsulfonyl-2-
-benzylsulfonylmethyl-propionamide (0.143 g, 41% yield).
[0523] A solution of
N--[(S)-1-(1-Benzooxazol-2-yl-1-hydroxy-methyl)-butyl]-3-benzylsulfonyl-2-
-benzylsulfonylmethyl-propionamide (0.140 g, 0.234 mmol) in
methylene chloride (5 mL) was treated with
1,1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one
(Dess-Martin periodinane) (0.127 g, 0.30 mmoL) and the resulting
solution was stirred at room temperature for 30 minutes. Aqueous
sodium thiosulfate and sodium bicarbonate (15 mL, 0.25 M) were
added and the reaction mixture was stirred for 20 minutes. The
product was extracted with ethyl acetate. The extracts were washed
with saturated aqueous sodium chloride and then dried over
magnesium sulfate. The solvent was removed by rotary evaporation at
reduced pressure and the residue was crystallized from
t-butylmethyl ether to give
N--[(S)-1-(1-benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfonyl-2-benzyl-
-sulfonylmethyl-propionamide (0.103 g, 74%); NMR (DMSO): 9.15 (d,
J=6 Hz, 1H); 8.01 (d, J=7 Hz, 1H); 7.89 (d, J=8 Hz, 1H); 7.65 (t,
J=7 Hz, 1H); 7.54 (t, J=8 Hz, 1H); 7.37 (m, 10H); 5.36 (m, 1H); 4.5
(m, 4H); 3.68 (m, 1H); 3.45-3.25 (m, 4H); 1.95 (m, 1H); 1.73 (m,
1H); 1.47 (m, 2H); 0.91 (t, J=7 Hz, 3H); MS: M(H+) 597.0
(596.17);
[0524] The following compounds were prepared by the method of
Example 1 by substituting the required carboxylic acid in place of
3-benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid:
[0525]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-(2-trifluorometh-
yl-benzylsulfonyl)-2-(2-trifluoromethyl-benzylsulfonylmethyl)-propionamide
(Compound 2); .sup.1H-NMR (CDCl.sub.3) .delta.: 7.93 (m, 1H); 7.69
(m, 4H); 7.4-7.6 (m, 6H); 7.20 (m, 2H); 5.58 (m, 1H); 4.54 (m, 4H);
3.69 (m, 1H); 3.30-3.55 (m, 4H); 1.55-1.90 (m, 1H); 1.45 (m, 1H);
1.32 (m, 2H); 0.90 (m, 3H); MS: M(+) 733.0; M(-) 731.6;
[0526]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-(2-methoxy-benz-
enesulfonyl)-2-[2-(2-methoxy-benzenesulfonyl)-ethyl]-butyramide
(Compound 3); .sup.1H-NMR (DMSO) .delta.: 8.65 (d, 1H); 7.99 (d,
J=7 Hz, 1H); 7.89 (d, J=8 Hz, 1H); 7.8-7.5 (m, 6H); 7.3-7.1 (m,
4H); 5.25 (m, 1H); 3.90 (m, 9H); 3.3 (m, 6H); 1.6 (m, 4H); 1.3 (m,
2H); 0.85 (m, 3H); MS: (M+) 670.2, 670.19;
[0527]
4-Benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N--[(S)-1-(1-benzoox-
azol-2-yl-methanoyl)-butyl]-butyramide (Compound 4); .sup.1H-NMR
(DMSO) .delta.: 8.61 (d, J=6 Hz, 1H); 7.99 (d, J=8 Hz, 1H); 7.91
(d, J=8 Hz, 1H); 7.82 (m, 4H); 7.74 (m, 2H); 7.64 (m, 5H); 7.55 (t,
J=8 Hz, 1H); 5.21 (m, 1H); 3.3-3.0 (m, 5H); 1.8 (m, 1H); 1.6 (m,
5H); 1.3 (m, 2H); 0.86 (t, J=7 Hz, 3H); MS: (M+) 597.2, 596.17;
[0528]
(Z)-N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-2-cyclohexylme-
thyl-3-benzylsulfonyl-propionamide (Compound 5); .sup.1H NMR
(DMSO): 8.96 (d, J=6 Hz, 1H), 8.73 (d, J=6 Hz, 1H), 7.99 (d, J=8H,
1H), 7.87 (m, 1H), 7.64 (m, 1H), 7.54 (m, 1H), 7.37 (m, 5H), 5.29
(m, 1H), 4.44 (s, 2H), 4.36 (s, 2H), 3.3-2.8 (m, 2H), 0.6-2.0 (m,
20H); MS: MH.sup.+ 525.4 (524.23); and
[0529]
N--[(S)-1-(1-Benzothiazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-
-4-oxo-2-benzylsulfonylmethyl-butyramide (Compound 6); .sup.1H NMR:
(DMSO), 8.79 (d, J=6.2 Hz), 8.72 (d, J=6.2 Hz), 1H], 8.30-8.22 (m,
2H), 7.71-7.61 (m, 2H), 7.43-7.33 (m, 5H), 5.46-5.33 (m, 1H),
4.53-4.38 (m, 2H), 3.57-3.30 (m, 10H), 3.13-3.02 (m, 1H), 2.66-2.54
(m, 2H), 2.04-1.90 (m, 1H), 1.83-1.68 (m, 1H), 0.97 (t, J=7.2 Hz,
3H); MS: (M.sup.++1) 558.
[0530] The method of Example 1 can also be modified by omitting the
Oxone.RTM. oxidation step to prepare the following compounds:
[0531]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-cyclohexyl-2-cyc-
lohexylmethyl-propionamide (Compound 7); .sup.1H NMR (DMSO): 8.50
(d, J=6 Hz, 1H); 8.00 (d, J=8 Hz, 1H); 7.89 (d, J=8 Hz, 1H); 7.62
(t, J=7 Hz, 1H); 7.53 (t, J=7 Hz, 1H); 5.2(m, 1H); 2.0-0.8 (m,
35H); MS: M(H+) 453.2 (452.3);
[0532]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-isobutylsulfanyl-
-2-isobutylsulfanylmethyl-propionamide (Compound 8); .sup.1H NMR
(DMSO): 8.73 (d, J=5 Hz, 1H); 7.76 (d, J=7 Hz, 1H); 7.87 (d, J=8
Hz, 1H); 7.62 (dt, J=7.1 Hz, 1H); 7.52 (dt, J=8.1 Hz, 1H); 5.26 (m,
1H); 2.7 (m, 1H); 2.55 (m, 4H); 2.34 (d, J=7 Hz, 2H); 2.29 (d, J=7
Hz, 2H); 1.9 (m, 1H); 1.66 (m, 3H); 1.45 (m, 2H); 0.91 (t, J=6 Hz,
3H), 0.90 (d, J=6 Hz, 6H), 0.88 (d, J=3 Hz, 3H), 0.84 (d, J=3 Hz,
3H); MS: M(H+) 465.0 (464.22);
[0533]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-3-benzylsulfanyl-2-
-benzylsulfanylmethyl-propionamide (Compound 9); .sup.1H NMR
(DMSO): 8.80 (d, J=7 Hz, 1H); 7.98 (d, J=8 Hz, 1H); 7.88 (d, J=8
Hz, 1H); 7.63 (t, J=7 Hz, 1H); 7.53 (t, J=7 Hz, 1H); 7.3-7.2 (m,
10H); 5.32 (m, 1H); 3.71 (s, 2H); 3.65 (d, J=3 Hz, 2H); 2.87 (m,
1H); 2.45-2.3 (m, 4H); 2.0-1.4 (m, 4H); 0.92 (t, J=7 Hz, 3H); MS:
M(H+) 533.0 (532.19); and
[0534]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-4-phenylsulfanyl-2-
-(2-phenylsulfanyl-ethyl)-butyramide (Compound 10); .sup.1H NMR
(DMSO): 8.73 (d, J=6 Hz, 1H); 7.99 (d, J=8 Hz, 1H); 7.88 (d, J=8
Hz, 1H); 7.65 (t, J=8 Hz, 1H); 7.53 (t, J=8 Hz, 1H); 7.35-7.1 (m,
10H); 5.3 (m, 1H); 2.85 (m, 4H); 2.65 (m, 1H); 2.0-1.3 (m, 8H);
0.91 (t, J=7 Hz, 3H); MS: M(H+) 533.0 (532.19).
Example 2
N-Cyanomethyl-4-morpholin-4-yl-4-oxo-2-(2-trifluoromethyl-benzyl-sulfonylm-
ethyl)-butyramide
[0535] ##STR541##
[0536] A mixture comprised of
4-morpholin-4-yl-4-oxo-2-(2-trifluoromethyl-benzylsulfonylmethyl)-butyric
acid (200 mg, 0.47 mmol), prepared as in reference 5, EDC (200 mg,
1.05 mmol), HOBt (200 mg, 1.3 mmol), and aminoacetonitrile
hydrochloride (150 mg, 1.6 mmol) was treated with dichloromethyl (4
mL) and 4-methylmorpholine (0.5 mL). The mixture was stirred at
ambient temperature for 2 hours. After dilution with ethyl acetate
(150 mL), the solution was washed with water (30 mL), saturated
aqueous NaHCO.sub.3 solution and brine, dried with magnesium
sulfate and evaporated under vacuum. The product was crystallized
from ethyl acetate/hexane to yield
N-cyanomethyl-4-morpholin-4-yl-4-oxo-2-(2-trifluoromethyl-benzyl-sulfonyl-
methyl)-butyramide (156 mg) as a yellowish solid; .sup.1H NMR:
(DMSO) 8.87 (t, J=5.5 Hz, 1H), 7.81-7.57 (m, 4H), 4.74 (d, J=14.5
Hz, 1H), 4.67 (d, J=14.5 Hz, 1H), 4.13 (d, J=5.5 Hz, 2H), 3.63-3.26
(m, 11H), 2.75 (dd, J=6.4 Hz, J=16.8 Hz, 1H), 2.65 (dd, J=6.2 Hz,
J=16.8 Hz, 1H); MS: (M.sup.++1) 462;
[0537] The following compounds of Formula I were provided by
proceeding as in Example 2:
[0538]
N.sup.4-(4-Carbamoyl-phenyl)-N.sup.1-cyanomethyl-2-benzyl-sulfonyl-
methyl-succinamide (Compound 19); .sup.1H NMR: (DMSO) 10.24 (s,
1H), 8.93 (t, J=5.5 Hz, 1H), 7.83 (s, 1H), 7.81 (d, J=8.4 Hz, 2H),
7.60 (d, J=8.4 Hz, 2H), 7.44-7.35 (m, 5H), 7.23 (s, 1H), 4.53 (d,
J=13.6 Hz, 1H), 4.48 (d, J=13.6 Hz, 1H), 4.14 (m, 2H), 3.50-3.30
(m, 2H), 3.20 (dd, J=4.7 Hz, J=13.1 Hz, 1H), 2.73 (d, J=6.7 Hz,
2H); MS: (M.sup.++1) 443; and
[0539]
N-Cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-4--
morpholin-4-yl-4-oxo-butyramide (Compound 25); .sup.1H NMR: (DMSO)
8.85 (t, J=5.5 Hz, 1H), 7.52-7.43 (m, 2H), 7.31-7.22 (m, 2H), 7.13
(t, J.sub.H,F=74 Hz, 1H), 4.53 (s, 2H), 4.11 (d, J=5.5 Hz, 2H),
3.58-3.20 (m, 11H), 2.72 (dd, J=6.7 Hz, J=16.8 Hz, 1H), 2.63 (dd,
J=5.9 Hz, J=16.8 Hz, 1H); MS: (M.sup.++1) 460;
Example 3
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-propyl]-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide
[0540] ##STR542##
[0541] A mixture comprised of
4-Morpholin-4-yl-4-oxo-2-(benzyl-sulfonylmethyl)-butyric acid (300
mg, 0.84 mmol), EDC (250 mg, 1.3 mmol), HOBt (250 mg, 1.6 mmol) and
(2S)-2-amino-1-benzooxazol-2-yl-butan-1-ol (250 mg, 1.2 mmol) was
treated with dichloromethyl (4 mL) followed by 4-methylmorpholine
(0.5 mL). The mixture was stirred at ambient temperature for 2
hours. After dilution with ethyl acetate (150 mL), the solution was
washed with 1N aqueous HCl, water, saturated aqueous NaHCO.sub.3
solution and brine, dried with magnesium sulfate and evaporated
under vacuum. The crude product was dissolved in dry dichloromethyl
(10 mL) and
1,1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one
(Dess-Martin periodinane) (500 mg, 1.2 mmol) was added. After
stirring at ambient temperature for 1 hour, the mixture was diluted
with ethyl acetate (150 mL) and treated with 0.26M
Na.sub.2S.sub.2O.sub.3 solution in saturated aqueous NaHCO.sub.3.
The organic phase was washed with saturated aqueous NaHCO3 and
brine, dried with magnesium sulfate and evaporated to yield
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-propyl-4-morpholin-4-yl-4-oxo-2--
benzylsulfonylmethyl-butyramide (377 mg) as mixture of
diastereomers. The product was purified by flash chromatography on
silica gel (hexane/ethyl acetate ratio of 1:2 to 1:4); .sup.1H NMR:
(DMSO), 8.85 (d, J=6.2 Hz), 8.77 (d, J=6.2 Hz), 1H], 8.00 (d, J=7.7
Hz), 7.99 (d, J=7.7 Hz), 1H], 7.90 (d, J=8.2 Hz), 7.89 (d, J=8.2
Hz), 1H], 7.64 (t, J=7.9 Hz, 1H), 7.54 (t, J=7.4 Hz, 1H), 7.42-7.34
(m, 5H), 5.25-5.12 (m, 1H), 4.55-4.38 (m, 2H), 3.60-3.28 (m, 10H),
3.12-3.02 (m, 1H), 2.64-2.50 (m, 2H), 2.08-1.91 (m, 1H), 1.82-1.65
(m, 1H), 0.98 (t, J=7.4 Hz, 3H); MS: (M.sup.++1) 542;
[0542] The following compounds of Formula I were provided by
proceeding as in Example 3:
[0543]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-pentyl]-4-morpholin-4-yl--
4-oxo-2-benzylsulfonylmethyl-butyramide (Compound 30); .sup.1H NMR:
(DMSO), 8.84 (d, J=6.4 Hz), 8.76 (d, J=6.4 Hz), 1H], 8.00 (d, J=7.7
Hz), 7.98 (d, J=7.7 Hz), 1H], 7.89 (d, J=8.2 Hz), 7.88 (d, J=8.2
Hz), 1H], 7.64 (t, J=7.9 Hz, 1H), 7.53 (t, J=7.4 Hz, 1H), 7.42-7.34
(m, 5H), 5.30-5.17 (m, 1H), 4.53-4.37 (m, 2H), 3.56-3.26 (m, 10H),
3.12-3.00 (m, 1H), 2.66-2.52 (m, 2H), 2.00-1.86 (m, 1H), 1.76-1.61
(m, 1H), 1.48-1.22 (m, 4H), 0.85 (t, J=6.9 Hz, 3H); MS: (M.sup.++1)
570;
[0544]
(S)-2,2-Difluoro-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl--
butanoylamino)-3-oxo-hexanoic acid dimethylamide (Compound 31);
.sup.1H NMR: (DMSO) 8.63-8.57 (m, 1H), 7.43-7.34 (m, 5H), 4.69-4.57
(m, 1H), 4.55-4.41 (m, 2H), 3.59-3.30 (m, 10H), 3.14-3.04 (m, 1H),
2.98 (s), 2.96 (s), 3H], 2.90 (s), 2.88 (s), 3H], 2.70-2.58 (m,
2H), 1.90-1.72 (m, 1H), 1.66-1.50 (m, 1H), 0.89 (t, J=6.9 Hz, 3H);
MS: (M.sup.++1) 546; and
[0545]
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-4-morpholin-4-yl-4-
-oxo-2-benzylsulfonylmethyl-butyramide (Compound 32); .sup.1H NMR:
(DMSO) 9.26-9.19 (m, 1H), 8.56 (d, J=6.7 Hz), 8.51 (d, J=6.9 Hz),
1H], 7.44-7.19 (m, 10H), 4.96-4.85 (m, 1H), 4.53-4.40 (m, 2H),
4.38-4.22 (m, 2H), 3.57-3.30 (m, 10H), 3.11-2.99 (m, 1H), 2.65-2.52
(m, 2H), 1.86-1.71 (m, 1H), 1.61-1.48 (m, 1H), 0.89 (t, J=7.2 Hz,
3H); MS: (M.sup.++1) 558.
Example 5
3-Biphenyl-3-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide
[0546] ##STR543##
[0547] 3-Biphenyl-3-yl-2-benzylsulfonylmethyl-propionic acid (300
mg, 0.76 mmol), prepared as in Reference 9, was combined with EDC
(300 mg, 1.57 mmol), HOBt (300 mg, 1.96 mmol), and
aminoacetonitrile hydrochloride (150 mg, 1.6 mmol). Dichloromethyl
(4 mL) was added and then 4-methylmorpholine (0.5 mL). The mixture
was stirred at ambient temperature for 2 hours. After dilution with
ethyl acetate (150 mL), the solution was washed with water (30 mL),
saturated aqueous NaHCO.sub.3 solution and brine, dried with
magnesium sulfate and evaporated under vacuum. The product,
3-biphenyl-3-yl-N-cyanomethyl-2-benzylsulfonylmethyl-propionamide
(273 mg), was crystallized from ethyl acetate/hexane as a white
solid; .sup.1H NMR: (DMSO) 8.87 (t, J=5.5 Hz, 1H), 7.68-7.14 (m,
14H), 4.45 (d, J=13.8 Hz, 1H), 4.38 (d, J=13.8 Hz, 1H), 4.13 (m,
2H), 3.49 (dd, J=9.4 Hz, J=14.1 Hz, 1H), 3.28-3.11 (m, 1H),
3.04-2.76 (m, 3H). MS: (M.sup.++1) 433.
[0548] Proceeding as in Example 5 provided the following compound
of Formula I:
[0549]
3-Biphenyl-4-yl-N-cyanomethyl-2-benyzlsulfonylmethyl-propionamide
(Compound 36); .sup.1H NMR: (DMSO) 8.86 (t, J=5.5 Hz, 1H), 7.65 (d,
J=7.4 Hz, 2H), 7.59 (d, J=7.4 Hz, 2H), 7.47 (t, J=7.7 Hz, 2H),
7.39-7.24 (m, 8H), 4.47 (d, J=13.8 Hz, 1H), 4.40 (d, J=13.8 Hz,
1H), 4.13 (m, 2H), 3.48 (dd, J=9.4 Hz, J=14.1 Hz, 1H), 3.23-3.11
(m, 1H), 3.04-2.75 (m, 3H). MS: (M.sup.++1) 433; and
[0550]
3-(3-Bromo-phenyl)-N-cyanomethyl-2-benzylsulfonylmethyl-propionami-
de (Compound 37); .sup.1H NMR: (DMSO) 8.84 (t, J=5.5 Hz, 1H),
7.46-7.14 (m, 9H), 4.46 (d, J=13.8 Hz, 1H), 4.40 (d, J=13.8 Hz,
1H), 4.10 (m, 2H), 3.46 (dd, J=9.4 Hz, J=14.1 Hz, 1H), 3.18-3.07
(m, 1H), 2.97 (dd, J=14.1 Hz, J=3.4 Hz, 1H) 2.88-2.73 (m, 2H). MS:
(M.sup.++1) 435/437.
Example 6
N--[(S)-1-((E)-2-Benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyls-
ulfonylmethyl-propionamide
[0551] ##STR544##
[0552] A mixture of
3-benzylsulfanyl-2-benzylsulfanylmethyl-propionic acid (161 mg),
prepared as in Reference 1,3-benzenesulfonyl-1-n-butylallylamine
tosylate (212 mg), HOBt monohydrate (77 mg) and EDC (125 mg) in
methylene chloride (6 mL) was treated with N-methylmorpholine (0.25
mL) and stirred at room temperature for 2.5 hours. The reaction
mixture was poured into ice cold dilute hydrochloric acid. The
product was extracted with ethyl acetate and the organic extracts
were washed with aqueous sodium bicarbonate and then with saturated
sodium chloride. After drying over magnesium sulfate the solvents
were evaporated to give a residue which was crystallized from ethyl
acetate/t-butylmethyl ether to yield
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfanyl-2-benzyl-
sulfanylmethyl-propionamide (160 mg).
[0553] A solution of
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfanyl-2-benzyl-
sulfanylmethyl-propionamide (50 mg) in methylene chloride (5 mL)
was treated with m-chloroperbenzoic acid (108 mg) and then stirred
at room temperature for 65 minutes. The reaction mixture was
stirred with aqueous sodium bisulfite and sodium bicarbonate for 85
minutes and then extracted with methylene chloride. The organic
extracts were washed with saturated aqueous sodium chloride and
dried over magnesium sulfate. Evaporation of the solvent gave a
residue which was precipitated from ethyl acetate/t-butylmethyl
ether to give
N--[(S)-1-((E)-2-benzenesulfonyl-vinyl)-pentyl]-3-benzylsulfonyl-2-benzyl-
sulfonylmethyl-propionamide (37 mg); .sup.1H NMR (DMSO): 8.61 (d,
J=8 Hz, 1H), 7.80 (d, J=7 Hz, 2H), 7.69 (t, J=7H, 1H), 7.58 (t, J=8
Hz, 2H), 7.38 (m, 10H), 6.86 (m, 2H), 4.6-4.3 (m, 5H), 3.5-3.4 (m,
5H), 1.5 (m, 2H), 1.2 (m, 4H), 0.8 (m, 3H); MS: MH.sup.+ 632.2
(631.17).
[0554] Proceeding as in Example 6 provided the following compound
of Formula I:
[0555]
N-(3-Benzenesulfonyl-1-phenethyl-allyl-3-benzylsulfonyl-2-benzylsu-
lfonylmethyl-propionamide (Compound 39); .sup.1H NMR (DMSO): 8.75
(d, J=8 Hz, 1H), 7.80 (d, J=7 Hz, 2H), 7.70 (t, J=7H, 1H), 7.58 (t,
J=8 Hz, 2H), 7.4-7.1 (m, 15H), 6.9 (m, 2H), 4.6-4.2 (m, 5H),
3.6-3.3 (m, 5H), 2.6 (m, 2H), 1.8 (m, 2H); MS: MH.sup.+ 680.4
(679.17);
Example 7
N-Cyanomethyl-3-(3-cyano-benzylsulfonyl)-2-benzylsulfonyl-methylpropionami-
de
[0556] ##STR545##
[0557] A mixture of
3-acetylsulfanyl-2-benzylsulfanylmethyl-propionic acid (0.200 g),
prepared as in Reference 10, HOBt hydrate (0.13 g),
aminoacetonitrile hydrochloride (0.15 g) and EDC (0.26 g) was
treated with methylene chloride (6 mL) and N-methylmorpholine (0.35
mL). After stirring for 80 minutes at room temperature, the
reaction mixture was diluted with ethyl acetate (50 mL) and washed
sequentially with water, aqueous sodium bicarbonate and saturated
aqueous sodium chloride. The solution was dried over magnesium
sulfate and evaporated to give thioacetic acid
S-[3-benzylsulfanyl-2-(cyanomethyl-carbamoyl)-propyl] ester (0.218
g).
[0558] A solution of thioacetic acid
S-[3-benzylsulfanyl-2-(cyanomethyl-carbamoyl)-propyl]ester (0.105
g) in dimethylformamide (1 mL) and water (0.8 mL) was cooled on ice
and treated with 1 N aqueous potassium hydroxide (0.65 mL).
3-Cyanobenzylbromide (0.129 g) in dimethylformamide (0.8 mL) was
added. The reaction mixture was allowed to warm to room temperature
while stirring overnight. The reaction mixture was then poured into
ice water and extracted with ethyl acetate (50 mL) and washed with
water and saturated aqueous sodium chloride. The solution was dried
over magnesium sulfate and evaporated to give
2-benzylsulfanylmethyl-3-(3-cyano-benzylsulfanyl)-N-cyanomethyl-prop-
ionamide (0.135 g).
[0559]
2-Benzylsulfanylmethyl-3-(3-cyano-benzylsulfanyl)-N-cyanomethyl-pr-
opionamide (0.135 mg) in methanol (10 mL) was treated with a
solution of Oxone.RTM. (0.615 g) in water (1.3 mL) and the
resulting mixture was stirred at room temperature for 45 minutes.
The reaction mixture was diluted with water (50 mL) and then the
methanol was removed by rotary evaporation. The residue was diluted
with ethyl acetate and water. The product was extracted with ethyl
acetate and the organic layer washed with water and saturated
aqueous sodium chloride. The solution was dried over magnesium
sulfate and evaporated to give
N-Cyanomethyl-3-(3-cyano-benzylsulfonyl)-2-benzylsulfonylmethyl-propionam-
ide (0.138 g); .sup.1H NMR: (DMSO) 9.19 (t, J=5 Hz, 1H), 7.88 (d,
J=8 Hz, 1H), 7.82 (s, 1H), 7.72 (d, J=9 Hz, 1H), 7.62 (t, J=8 Hz,
1H), 7.38 (s, 5H), 4.65 (d, J=14 Hz, 1H), 4.58 (d, J=14 Hz, 1H),
4.53 (d, J=13 Hz, 1H), 4.47 (d, J=13 Hz, 1H), 4.17 (d, J=5 Hz, 2H),
3.5-3.3 (m, 5H); MS: (M.sup.++1) 460.2; 459.09.
Example 8
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,4-
]oxadiazol-5-yl)-methanoyl]-propyl}-butyramide
[0560] ##STR546##
[0561] A mixture of
(S)-2-amino-1-(3-phenyl-[1,2,4]oxadiazol-5-yl)-butan-1-one,
prepared as in Reference 11,
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (200 mg,
0.56 mmol), EDC (200 mg, 1.05 mmol), HOBt (200 mg, 1.30 mmol),
CH.sub.2Cl.sub.2 (4 mL) and 4-methylmorpholine (0.5mL) was stirred
at ambient temperature for 2 hours. After dilution with ethyl
acetate (150 mL), the solution was washed with water (30 mL),
saturated aqueous NaHCO.sub.3 solution and brine, dried with
MgSO.sub.4 and evaporated under vacuum. The crude product was
dissolved in dry dichloromethyl (10 mL) and
1,1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one
(Dess-Martin periodinane) (500 mg, 1.2 mmol) was added. After
stirring at ambient temperatures for 1 hour, the mixture was
diluted with ethyl acetate (150 mL) and treated with
Na.sub.2S.sub.2O.sub.3 solution (0.26M) in saturated aqueous
NaHCO.sub.3. The organic phase was washed with saturated aqueous
NaHCO.sub.3 and brine, dried with MgSO.sub.4 and evaporated. The
product was purified by flash chromatography on silica gel
(hexane/ethyl acetate in a 1:2 to 1:4 ratio) to yield
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-{(S)-1-[1-(3-phenyl-[1,2,-
4]oxadiazol-5-yl)-methanoyl-propyl}-butyramide (150 mg) as mixture
of diastereomers; .sup.1H NMR: (DMSO), 9.03 (d, J=5.9 Hz), 8.89 (d,
J=6.4 Hz), 1H], 8.09-8.03 (m, 2H), 7.66-7.55 (m, 3H), 7.42-7.33 (m,
5H), 4.97-4.78 (m, 1H), 4.53-4.35 (m, 2H), 3.58-3.02 (m, 11H),
2.65-2.50 (m, 2H), 2.06-1.90 (m, 1H), 1.83-1.66 (m, 1H), 0.97 (t,
J=7.2 Hz, 3H); MS: (M.sup.++1) 569.
Example 9
N-Cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfanylmethyl]-3-benzylsul-
fanyl-propionamide
[0562] ##STR547##
[0563] A mixture of
2-benzylsulfanylmethyl-3-[2-(1,1-difluoromethoxy)-benzyl-sulfanyl]-propio-
nic acid (96 mg, 0.241 mmol)(prepared above in Reference 2), HOBt
hydrate (37 mg, 0.24 mmol), aminoacetonitrile hydrochloride (33 mg,
0.36 mmol), EDC (69 mg, 0.36 mmol) and N-methylpyrolidinone (1 mL)
was treated with N-methylmorpholine (0.050 mL) and then stirred at
room temperature for 3 hours. The reaction mixture was then poured
into cold dilute HCl and the product extracted with ethyl acetate,
The organic extracts were washed with aqueous sodium bicarbonate
then saturated sodium chloride and dried over magnesium sulfate.
Evaporation of the solvent then gave
N-cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfanylmethyl]-3-benzylsu-
lfanyl-propionamide (46 mg).
[0564] The following compounds of Formula I are provided by this
method by substitution of
2-benzylsulfanylmethyl-3-[2-(1,1-difluoromethoxy)-benzylsulfanyl]-propion-
ic acid with the appropriate carboxylic acid:
[0565]
N-Cyanomethyl-3-(2-trifluoromethyl-benzylsulfanyl)-2-(2-trifluoro--
methyl-benzylsulfanylmethyl)-propionamide (Compound 43);
.sup.1H-NMR (CDCl.sub.3) .delta.: 7.57 (m, 6H); 7.36 (t, J=7.4 Hz,
2H); 6.01 (m, 1H); 4.16 (d, J=5.9 Hz, 2H); 3.86 (s, 4H); 2.70 (m,
4H); 3.35 (m, 1H); MS: (M+) 507.0, M(-) 504.2;
[0566]
N-Cyanomethyl-3-isobutylsulfanyl-2-isobutylsulfanylmethyl-propiona-
mide (Compound 44); .sup.1H NMR (DMSO): 8.77 (t, J=6 Hz, 1H), 4.5
(d, J=6 Hz, 2H), 2.60 (s, 5H), 2.34 (d, J=7 Hz, 4H), 1.70 (hept,
J=7 Hz, 2H), 0.91 (d, J=7 Hz, 12H); MS: M(H+) 303.0 (302.15);
[0567]
N-Cyanomethyl-4-phenylsulfanyl-2-(2-phenylsulfanyl-ethyl)-butyrami-
de (Compound 45); .sup.1H NMR (DMSO): 8.83 (t, J=5 Hz, 1H); 7.3 (m,
10H); 4.22 (d, J=6 Hz, 2H); 2.90 (m, 4H); 2.65 (m, 1H); 1.85 (m,
2H); 1.72 (m, 2H); MS: M(H+) 370.4 (370.12);
[0568]
N-Cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfanyl]-2-[2-(1,-
1-difluoro-methoxy)-benzylsulfanylmethyl]-propionamide (Compound
46); .sup.1H NMR (DMSO): 8.88 (t, J=5 Hz, 1H); 7.4-7.1 (m, 8H);
7.15 (t, J=74 Hz, 2H); 4.18 (t, J=3 Hz, 2H); 3.74 (d, J=13 Hz, 4H);
2.75 (m, 1H); 2.65-2.5 (m, 4H); MS: M(H+) 504.1 (502.1); and
[0569]
3-Benzylsulfanyl-2-benzylsulfanylmethyl-N-cyanomethyl-propionamide
(Compound 47); .sup.1H NMR (DMSO): 8.86 (t, J=6 Hz, 1H); 7.26 (m,
10H); 4.20 (d, J=5 Hz, 2H); 3.7 (s, 4H); 2.73 (m, 1H); 2.55-2.37
(m, 4H); MS: M(H+) 370.4 (370.12).
Example 10
N-Cyanomethyl-2-[2-1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-benzylsul-
fonyl-propionamide
[0570] ##STR548##
[0571] A solution of
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzyl-sulfanylmethyl]-3-benzyl-
sulfanyl-propionamide (46 mg) in methanol (5 mL) was treated with
Oxone.RTM. (184 mg in 2.5 mL of water) and stirred at ambient
temperature for 18 hours. An additional portion of Oxone.RTM. (166
mg in 1.5 mL of water) was added along with more methanol (10 mL)
and the reaction mixture was stirred again for 18 hours. Water was
added to the reaction mixture and the methanol was removed by
rotary evaporation and the product was extracted with ethyl
acetate. The organic extracts were washed with aqueous sodium
bicarbonate then saturated sodium chloride and dried over magnesium
sulfate. Evaporation of the solvent then gave
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3-phenyl--
methylsulfonyl-propionamide (67 mg); .sup.1H NMR (DMSO): 9.19 (t,
J=5 Hz, 1H), 7.47 (m, 2H), 7.38 (s, 5H), 7.25 (m, 2H), 7.13 (t,
J=74 Hz, 1H), 4.54 (s, 2H), 4.53 (d, J=14 Hz, 1H), 4.46 (d, J=14
Hz, 1H), 4.16 (d, J=5 Hz, 2H), .delta. 3.5 (m, 5H); MS: M(H+) 501.0
(500.09).
[0572] The following compounds of Formula I are provided by this
method by substitution of
N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzyl-sulfanylmethyl]-3-benzyl-
sulfanyl-propionamide with the appropriate N-cyanomethyl
propionamide:
[0573]
N-Cyanomethyl-3-(2-trifluoromethyl-benzylsulfonyl)-2-(2-trifluorom-
ethyl-benzylsulfonylmethyl)-propionamide. (Compound 49);
.sup.1H-NMR (DMSO) .delta.: 9.23 (t, J=5.4 Hz, 1H); 7.79 (m, 2H);
7.67 (m, 6H); 4.72 (m, 4H); 4.18 (t, J=2.7 Hz, 2H); 3.53-3.76 (m,
5H); MS: M(+) 539.0; M(-) 536.6;
[0574]
4-Benzenesulfonyl-2-(2-benzenesulfonyl-ethyl)-N-cyanomethyl-butyra-
mide (Compound 50); .sup.1H NMR (DMSO): 8.67 (t, J=5 Hz, 1H); 7.85
(m, 4H); 7.73 (m, 2H); 7.64 (m, 4H); 4.06 (m, 2H); 3.12 (m, 4H);
2.4 (m, 1H); 1.66 (m, 4H); MS: M(H+) 435.2 (434.10);
[0575]
N-Cyanomethyl-3-[2-(1,1-difluoro-methoxy)-benzylsulfonyl]-2-[2-(1,-
1-difluoro-methoxy)-benzylsulfonylmethyl]-propionamide (Compound
51); .sup.1H NMR (DMSO): 9.17 (t, J=5 Hz, 1H); 7.5-7.4 (m, 4H);
7.3-7.2 (m, 4H); 7.12 (t, J=74 Hz, 2H); 4.54 (s, 4H); 4.15 (m, 2H);
3.6-3.4 (m, 5H); MS: M(H+) 567.2 (566.08); and
[0576]
N-Cyanomethyl-3-benzylsulfonyl-2-benzylsulfonylmethyl-propionamide
(Compound 52); .sup.1H NMR (DMSO): 9.19 (t, J=5 Hz, 1H); 7.38 (s,
10H); 4.53 (d, J=14 Hz, 2H); 4.46 (d, J=14 Hz, 2H); 4.17 (t, J=3
Hz, 2H); 3.5-3.3 (m, 5H); MS: M(H+) 435.2 (434.1).
[0577] The following compounds of Formula I are provided by the
methods described in this application:
[0578]
N--[(S)-1-(1-Benzylcarbamoyl-methanoyl)-propyl]-3-benzylsulfonyl-2-
-benzylsulfonylmethyl-propionamide (Compound 53); .sup.1H-NMR
(DMSO) .delta.: 9.27 (t, J=6 Hz, 1H); 8.89 (d, J=6 Hz, 1H); 7.4-7.2
(m, 15H); 5 (m, 1H); 4.5 (m, 4H); 4.3 (m, 2H); 3.67 (m, 1H);
3.5-3.2 (m, 4H), 1.8 (m, 1H) 1.6 (m, 1H); 0.91 (t, J=7 Hz, 3H); MS:
(M+) 599.0, M(-) 598.18;
[0579]
N--[(S)-1-(1-Benzooxazol-2-yl-methanoyl)-butyl]-2-[2-(1,1-difluoro-
-methoxy)-benzylsulfonylmethyl]-3-benzylsulfonyl-propionamide
(Compound 54); .sup.1H-NMR (DMSO) .delta.: 9.1 (t, J=6 Hz, 1H);
7.99 (d, J=8 Hz, 1H); 7.88 (d, J=8 Hz, 1H); 7.7-7.2 (m, 14H); 5.35
(m, 1H); 4.6-4.4 (m, 5H); 3.7-3.3 (m, 5H); 1.9 (m, 1H), 1.7 (m, 1H)
1.45 (m, 2H); 0.90 (t, J=7 Hz, 3H); MS: (M+) 599.0, M(-)
598.18;
[0580]
N-Cyanomethyl-3-(2-methyl-propane-1-sulfonyl)-2-(2-methyl-propane--
1-sulfonylmethyl)-propionamide (Compound 55); .sup.1H-NMR (DMSO)
.delta.: 9.13 (t, J=5 Hz, 1H); 4.14 (m, 2H); 3.5-3.3 (m, 5H),
3.1-2.95 (m, 4H), 2.17 (h, J=7 Hz, 2H) 1.01 (d, J=7 Hz, 12H); MS:
(M+) 367.0, 366.13;
[0581] Acetic acid
(2S,3S)-3-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butanoylamino)-4-
-oxo-azetidin-2-yl ester (Compound 58); .sup.1H NMR: (DMSO) 9.19
(d, J=5.9 Hz, 1H), 8.94 (d, J=7.6 Hz), 8.90 (d, J=7.6 Hz), 1H],
7.42-7.35 (m, 5H), 5.70 (m, 1H), 4.60 (m, 1H), 4.56-4.40 (m, 2H),
3.58-3.06 (m, 11H), 2.70-2.50 (m, 2H), 2.07 (s, 3H); MS:
(M.sup.++1) 482;
[0582]
N-Cyanomethyl-3-(2-methyl-thiazol-4-ylmethylsulfonyl)-2-benzyl-sul-
fonylmethyl-propionamide (Compound 59); .sup.1H NMR (DMSO): 9.14
(t, J=5 Hz, 1H), 7.52 (s, 1H), 7.38 (s, 5H), 4.64 (s, 2H), 4.53 (d,
J=14 Hz, 1H), 4.46 (d, J=14 Hz, 1H), 4.16 (d, J=5 Hz, 211), 3.5 (m,
5H), 2.63 (s, 3H); M=455.06, M(H+)=456.0;
[0583]
N-(3-Benzenesulfonylamino-2-oxo-propyl)-4-morpholin-4-yl-4-oxo-2-b-
enzylsulfonylmethyl-butyramide (Compound 60); .sup.1H NMR: (DMSO)
8.46 (t, J=5.2 Hz, 1H), 7.97 (t, J=5.7 Hz, 1H), 7.79 (d, J=7 Hz,
2H), 7.66-7.52 (m, 3H), 7.44-7.36 (m, 5H), 4.56-4.43 (m, 2H), 3.94
(d, J=5.2 Hz, 2H), 3.84 (d, J=5.7 Hz, 2H), 3.59-3.04 (m, 1H),
2.75-2.55 (m, 2H); MS: (M.sup.++1) 566;
[0584]
3-Biphenyl-3-yl-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzyl-s-
ulfonylmethyl]-propionamide (Compound 61); .sup.1H NMR: (DMSO) 8.86
(t, J=5.4 Hz, 1H), 7.70-7.10 (m, 13H), 7.12 (t, J=73.7 Hz, 1H),
4.46 (s, 2H), 4.13 (m, 2H), 4.10 (d, J=5.6 Hz, 2H), 3.57 (m, 1H),
3.20-3.00 (m, 2H), 3.00-2.80 (m, 2H); MS: (M.sup.++1) 499;
[0585]
(3'-{2-(Cyanomethyl-carbamoyl)-3-[2-(1,1-difluoro-methoxy)-benzyl--
sulfonyl]-propyl}-biphenyl-4-yl)-carbamic acid ethyl ester
(Compound 62); .sup.1H NMR: (DMSO) 9.70 (s, 1H), 8.84 (t, J=5.4 Hz,
1H), 7.55 (s, 4H), 7.50-7.15 (m, 8H), 7.11 (t, J=73.7 Hz, 1H), 4.45
(s, 2H), 4.13 (m, 2H), 4.09 (d, J=5.5 Hz, 2H), 3.56 (m, 1H),
3.20-3.00 (m, 2H), 2.95-2.75 (m, 2H), 1.24 (t, J=6.9 Hz, 3H); MS:
(M.sup.++1) 586;
[0586]
N-Cyanomethyl-2-[2-(1,1-difluoro-methoxy)-benzylsulfonylmethyl]-3--
(4'-methylsulfonylamino-biphenyl-3-yl)-propionamide (Compound 63);
.sup.1H NMR: (DMSO) 9.77 (s, 1H), 8.79 (t, J=5.4 Hz, 1H), 7.57 (d,
J=8.6, 2H), 7.50-7.00 (m, 8H), 7.27 (d, J=8.6 Hz, 2H), 7.06 (t,
J=73 Hz, 1H), 4.40 (s, 2H), 4.04 (d, J=5.6 Hz, 2H), 3.51 (m, 1H),
3.20-3.00 (m, 2H), 2.90-2.70 (m, 2H); MS: (M.sup.++1) 592;
[0587]
3-(3-Bromo-phenyl)-N-cyanomethyl-2-[2-(1,1-difluoro-methoxy)-pheny-
l-methylsulfonylmethyl]-propionamide (Compound 64); .sup.1H NMR:
(DMSO) 8.80 (t, J=5.4 Hz, 1H), 7.50-7.35 (m, 4H), 7.35-7.15 (m,
4H), 7.13 (t, J=73 Hz, 1H), 4.46 (s, 2H), 4.06 (d, J=5.4 Hz, 2H),
3.53 (m, 1H), 3.20-3.00 (m, 2H), 2.90-2.70 (m, 2H); MS: (W+1)
501;
[0588]
N-Cyanomethyl-2-((E)-3-phenyl-allyl)-3-benzylsulfonyl-propionamide
(Compound 65); .sup.1H NMR: (DMSO) 8.85 (t, J=5.4 Hz, 1H),
7.40-7.10 (m, 10H), 6.35 (d, J=15 Hz, 1H), 6.15-5.95 (m, 1H), 4.41
(s, 2H), 4.08 (d, J=5.4 Hz, 2H), 3.56-3.35 (m, 2H), 3.25-2.90 (m,
3H); MS: (M.sup.++1) 383; and
[0589]
N-Cyanomethyl-3-benzylsulfonyl-2-(3-phenyl-propyl)-propionamide
(Compound 66); .sup.1H NMR: (DMSO) 8.91 (t, J=5.4 Hz, 1H),
7.45-7.10 (m, 10H), 4.41 (s, 2H), 4.08 (d, J=5.4 Hz, 2H), 3.30-2.80
(m, 3H), 2.34 (t, J=7.4 Hz, 2H), 2.22-2.12 (m, 2H), 2.10-1.85 (m,
2H); MS:(M.sup.++1) 385.
Example 11
4-Morpholin-4-yl-4-oxo-N-[1-(2-oxo-2-phenyl-acetyl)-pentyl]-2-benzylsulfon-
ylmethyl-butyramide
[0590] ##STR549##
[0591] 2-Amino-1-(2-phenyl-[1,3]dithian-2-yl)-hexan-1-ol, prepared
as in reference 12, was coupled with
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid,
according to the procedure outlined in example 8, resulting in
N-{1-[Hydroxy-(2-phenyl-[1,3]dithian-2-yl)-methyl]-pentyl}-4-morpholin-4--
yl-4-oxo-2-benzylsulfonyl-methyl-butyramide as a mixture of
diastereomers.
[0592]
N-{1-[Hydroxy-(2-phenyl-[1,3]dithian-2-yl)-methyl]-pentyl}-4-morph-
olin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyramide (0.23 g, 0.35
mmol) in 9 mL acetonitrile and 2.25 mL water at 23.degree. C. was
mixed with finely ground HgCl.sub.2 (212 mg, 0.78 mmol) and finely
ground calcium carbonate (90 mg, 0.89 mmol). The mixture was
stirred for 25 minutes and then diluted with ethyl acetate. Water
was added and the pH lowered to 6 by the addition of 1N HCl. After
separation, the organic layer was washed sequentially with water
and brine (twice). The organics were dried with magnesium sulfate,
concentrated and chromatographed on silica gel using a hexane-ethyl
acetate gradient to afford 150 mg of
N-[1-(1-Hydroxy-2-oxo-2-phenyl-ethyl)-pentyl]-4-morpholin-4-yl-4-oxo-2-ph-
enyl-methylsulfonylmethyl-butyramide as a mixture of diastereomers
(76% yield).
[0593]
N-[1-(1-Hydroxy-2-oxo-2-phenyl-ethyl)-pentyl]-4-morpholin-4-yl-4-o-
xo-2-benzylsulfonylmethyl-butyramide was oxidized by methods
described in the above examples resulting in
4-morpholin-4-yl-4-oxo-N-[1-(oxo-phenyl-acetyl)-pentyl]-2-benzylsulfonylm-
ethyl-butyramide as a mixture of diastereomers; .sup.1HNMR: (DMSO),
8.9 (d, J=6 Hz), 1/2H diastereomeric], 8.86 (d, J=6 Hz), 1/2H
diastereomeric], 7.89-7.84 (m, 2H), 7.7-7.67 (m, 1H), 7.56-7.5 (m,
2H), 7.4-7.3 (m, 5H), 4.56-4.54 (m, 1H), 4.41-4.35 (m, 2H), 3.4-4.6
(m, 4H), 3.35-3.25 (m, 4H), 3.2-3.1 (m, 2H), 2.99-2.95 (m, 1H),
1.9-1.6 (m, 2H), 1.5-1.2 (m, 6H), 1.0-0.9 (m, 3H); MS: (M.sup.++1)
557.
Example 12
3-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-4-oxo-pyrro-
lidine-1-carboxylic acid tert-butyl ester
[0594] ##STR550##
[0595] 4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid
(120 mg, 0.34 mmol), 3-amino-4-hydroxy-pyrrolidine-1-carboxylic
acid tert-butyl ester (150 mg, 0.74 mmol), prepared as in reference
13, EDC (0.3 g, 1.6 mmol), and HOBt (150 mg, 0.96 mmol) were
combined. Dichloromethyl (10 mL) was added and then
4-methylmorpholine (0.5 mL). The mixture was stirred at ambient
temperature for 2 hours. After dilution with ethyl acetate (200 mL)
the solution was washed with 1N aqueous HCl (50 mL), saturated
aqueous NaHCO.sub.3 (50 mL) and brine (50 mL), dried with
MgSO.sub.4 and evaporated under vacuum. The crude
3-hydroxy-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)--
pyrrolidine-1-carboxylic acid tert-butyl ester was dissolved in
DMSO (5 mL). Triethylamine (0.5 mL) and then SO.sub.3 pyridine
complex (150 mg) were added and the mixture was stirred at ambient
temperature for 3 hours. After dilution with ethyl acetate (100
mL), the solution was washed with water (50 mL) and brine, dried
with MgSO.sub.4 and evaporated under vacuum. The residue was
purified by flash chromatography on silica gel. Eluent: 5% methanol
in ethyl acetate. Yield: 40 mg
3-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-4-oxo-pyrr-
olidine-1-carboxylic acid tert-butyl ester as white solid as
mixture of diastereomers; .sup.1H NMR: (DMSO) 8.80-8.66 (m, 1H),
7.42-7.34 (m, 5H), 4.52-4.41 (m, 2H), 4.34-4.20 (m, 1H), 3.98-3.88
(m, 1H), 3.82 (d, J=18.5 Hz, 1), 3.70-3.05 (m, 13H), 2.70-2.52 (m,
2H), 1.41 (s, 9H); MS: (M+H).sup.+ 538.
Example 13
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azepa-
ne-1-carboxylic acid benzyl ester
[0596] ##STR551##
[0597] Sodium hydride (60% in mineral oil, 10 g, 250 mmol) was
suspended in dry DMF. Allyl-carbamic acid benzyl ester (19.1 g, 100
mmol) was added drop wise at ambient temperature. After stirring
for 5 minutes, 5-bromo-1-pentene (25 g, 168 mmol) was added drop
wise. Stirring was continued at 50.degree. C. for 1 hour. The
reaction was quenched with water and then partitioned between
diethyl ether and water. The ether layer was washed with water and
brine, dried with MgSO.sub.4 and evaporated under vacuum. Flash
chromatography (ethyl acetate/hexane 1:9) gave 15.5 g
allyl-pent-4-enyl-carbamic acid benzyl ester.
[0598] Allyl-pent-4-enyl-carbamic acid benzyl ester (15.5 g, 59.8
mmol) was dissolved in dichloromethyl and
bis(tricyclohexylphosphine)benzylidene ruthenium(IV) dichloride (1
g) was added. The mixture was refluxed under a nitrogen atmosphere
until TLC analysis showed complete reaction. The solvent was
evaporated under vacuum and the residue was purified by flash
chromatography (ethyl acetate/hexane 1:9). Yield: 7.8 g
2,3,4,7-Tetrahydro-azepine-1-carboxylic acid benzyl ester.
[0599] To a solution of 2,3,4,7-tetrahydro-azepine-1-carboxylic
acid benzyl ester (4.5 g, 19.45 mmol) in dichloromethyl (50 mL) was
added m-chloroperbenzoic acid (60 mmol). The mixture was stirred at
ambient temperature for 16 hours. Saturated aqueous K.sub.2CO.sub.3
solution was added and the mixture was extracted with
dichloromethyl. The combined organic layers were washed with
saturated aqueous NaHCO.sub.3 and brine, dried with MgSO.sub.4 and
evaporated under vacuum. The crude epoxide was dissolved in a 8:1
methanol/water mixture (100 mL). Ammonium chloride (3.2 g, 60 mmol)
and sodium azide (3.9 g, 60 mmol) was added and the mixture was
heated at 60.degree. C. for 48 hours. Most of the solvent was
removed under vacuum. The residue was extracted with ethyl acetate.
The combined organic layers were washed with saturated aqueous
NaHCO.sub.3 (200 mL) and brine (200 mL), dried with MgSO.sub.4 and
evaporated under vacuum. Flash chromatography of the residue
(hexane/ethyl acetate 3:1) gave 3.3 g of
4-azido-3-hydroxy-azepane-1-carboxylic acid benzyl ester.
[0600] To a solution of 4-azido-3-hydroxy-azepane-1-carboxylic acid
benzyl ester (3.3 g, 11.37 mmol) in methanol (50 mL) was added
triethylamine (5 mL) and 1,3-propanedithiol (3.42 mL, 35 mmol). The
mixture was stirred at ambient temperature until TLC analysis
showed complete consumption of the starting material. A white
precipitate was removed by filtration and the filtrate was
evaporated to dryness. The residue was triturated with a 1:1
hexane/diethyl ether mixture to remove excess dithiol and dried
under vacuum.
[0601] The crude 4-amino-3-hydroxy-azepane-1-carboxylic acid benzyl
ester was coupled to
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid and
oxidized, as described above, to yield
4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azep-
ane-1-carboxylic acid benzyl ester; .sup.1H NMR: (DMSO) 8.46-8.42
(m, 1H), 7.44-7.24 (m, 10H), 5.18-5.04 (m, 2H), 4.52-4.33 (m, 4H),
4.04-3.76 (m, 2H), 3.58-3.30 (m, 11H), 3.11-3.03 (m, 1H), 2.96-2.78
(m, 1H), 2.72-2.57 (m, 1H), 1.84-1.55 (m, 4H); MS: (M+H).sup.+
600.
Example 14
N-(1,1-Dimethyl-2-oxazolo[4,5-b]pyridin-2-yl-2-oxo-ethyl)-4-morpholin-4-yl-
-4-oxo-2-benzylsulfonylmethyl-butyramide
[0602] ##STR552##
[0603] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (142 mg,
0.4 mmol),
2-amino-2-methyl-1-oxazolo[4,5-b]pyridin-2-yl-propan-1-one TFA salt
(165 mg), prepared as in reference 14, and HOBt (73 mg, 0.45 mmol)
in MeCl.sub.2 (5 ml) was added EDC (115 mg, 0.6 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated. The residue was
purified by silica gel column chromatography to yield 92 mg of
N-{1-[(5-Ethyl-[1,3,4]oxadiazol-2-yl)-hydroxy-methyl]-butyl}-4-morpholin--
4-yl-4-oxo-2-benzylsulfonylmethyl-butyramide.
[0604] This amide was treated with Dess-Martin periodinane (125.6
mg, 0.254 mmol) at room temperature. After stirring for 1 hour, 5
ml of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 31 mg of
N-(1,1-dimethyl-2-oxazolo[4,5-b]pyridin-2-yl-2-oxo-ethyl)-4-morpholin-4-y-
l-4-oxo-2-benyzlsulfonylmethyl-butyramide; H.sup.1 NMR(DMSO-d):
9.36(1H, s, NH), 8.68(1H, d, J=4.7 Hz), 8.34(1H, d, J=8.42 Hz),
7.62(1H, dd, J=4.7 Hz, J=8.42 Hz), 7.4-7.4(5H, m), 4.41-4.3(2H, s),
3.5-3(12H, m), 2.2-2.1(1H, m), 1.6(3H, s), 1.51(3H, s); MS:
541.4(M-1), 543.4(M+1).
Example 15
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo--
2-benzylsulfonylmethyl-butyramide
[0605] ##STR553##
[0606] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (177.7
mg, 0.5 mmol), 2-amino-1-(5-ethyl-1,3,4-oxadiazole-2-yl)-1-pentanol
HCl salt (117.5 mg), and HOBt (91.8 mg, 0.6 mmol) in MeCl.sub.2 (5
ml), was added EDC (144 mg, 0.75 mmol) and N-methylmorpholine (0.3
ml) at room temperature. After stirring for 14 hours, the reaction
mixture was extracted with ethyl acetate. The organic layer was
washed with saturated NaHCO.sub.3, brine, dried with MgSO.sub.4 and
concentrated to yield 240 mg of crude product (MS: 536(M-1),
538.4(M+1)). Without further purification, the crude product was
treated with Dess-Martin periodinane (334 mg, 0.67 mmol) at room
temperature in 5 mL of MeCl.sub.2. After stirring for 1 hour, 5 mls
of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After
a further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 110 mg of
N-[1-(5-ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-
-2-benzylsulfonylmethyl-butyramide; H.sup.1 NMR(DMSO-d): 8.84(1/2H,
d, NH, diastereomeric), 8.78( 1/1H, d, NH, diastereomeric),
7.45-7.2(5H, m), 5.05-4.9(1H, m), 4.48-4.3(2H, m), 3.6-3.4(4H, m),
3.4-3.2(4H, m), 3.1-2.4(6H, m), 1.9-1.75(1H, m), 1.7-1.55(2H, m),
1.25-1.2(2H, m), 1.2-1.1(3H, m), 0.9-0.8(3H, m); MS: 534M-1),
535.8(M+1).
Example 16
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl--
methyl-4-piperidin-1-yl-butyramide
[0607] ##STR554##
[0608] To a stirred mixture
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (176.5
mg, 0.5 mmol), 2-amino-1-(5-ethyl-1,3,4-oxadiazole-2-yl)-1-pentanol
HCl salt (117.5 mg), and HOBt (91.8 mg, 0.6 mmol) in MeCl.sub.2 (5
ml), was added EDC (144 mg, 0.75 mmol) and N-methylmorpholine (0.3
ml) at room temperature. After stirring for 14 hours, the reaction
mixture was extracted with ethyl acetate. The organic layer was
washed with saturated NaHCO.sub.3, brine, dried with MgSO.sub.4 and
concentrated to yield 270 mg of crude product; MS: 534.1(M-1),
535.7(M+1).
[0609] The amide was then treated with Dess-Martin periodinane
(378.7 mg, 0.675 mmol) at room temperature in 5 ml of MeCl.sub.2.
After stirring for 1 hour, 5 ml of saturated
Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a further 0.5
hours, the reaction mixture was extracted with ethyl acetate,
washed with brine, dried with MgSO.sub.4 and concentrated. The
residue was purified with silica gel column chromatography to yield
165 mg of
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzyl-s-
ulfonyl-methyl-4-piperidin-1-yl-butyramide; H.sup.1 NMR (DMSO-d):
8.85(1/2H, d, NH, diastereomeric), 8.78(1/2, d, NH,
diastereomeric), 7.4-7.2(5H, m), 5.1-4.9(1H, m), 4.5-4.3(2H, m),
3.5-3.2(8H, m), 3.1-2.6(1H, m), 2.9(2H, m), 1.9-1.6(2H, m),
1.6-1.2(8H, m), 1.24(3H, m), 0.9-0.8(3H, m); MS: 531.6(M-1),
533.4(M+1).
Example 17
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl--
methyl-4-pyrrolidin-1-yl-butyramide
[0610] ##STR555##
[0611] To a stirred mixture
4-cyclopentyl-4-oxo-2-benzylsulfonylmethyl-butyric acid (169.5 mg,
0.5 mmol), 2-amino-1-(5-ethyl-1,3,4-oxadiazole-2-yl)-1-pentanol HCl
salt (117.5 mg), and HOBt (91.8 mg, 0.6 mmol) in MeCl.sub.2 (5 ml),
was added EDC (144 mg, 0.75 mmol) and N-methylmorpholine (0.3 ml)
at room temperature. After stirring for 14 hours, the reaction
mixture was extracted with ethyl acetate. The organic layer was
washed with saturated NaHCO.sub.3, brine, dried with MgSO.sub.4 and
concentrated to yield 240 mg of crude product. The crude product
was treated with Dess-Martin periodinane (343 mg, 0.693 mmol) at
room temperature in 5 mls of MeCl.sub.2. After stirring for 1 hour,
5 mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 145 mg of
N-[1-(5-Ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-oxo-2-benzylsulfonyl-
-methyl-4-pyrrolidin-1-yl-butyramide; H.sup.1NMR(DMSO-d):
8.85(1/2H, d, NH, diastereomeric), 8.78(1/2H, d, NH,
diastereomeric), 7.5-7.3(5H, m), 5.1-4.95(1H, m), 4.5-4.3(2H, m),
3.5-3.2(8H, m), 3.2-3(1H, m), 2.82(2H, m), 2-1.8(6H, m),
1.6-1.3(2H, m), 1.24(3H, m), 0.9-0.8(3H, m); MS: 518.2(M-1),
519.7(M+1).
Example 18
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-morpholin-4--
yl-4-oxo-2-benzylsulfonylmethyl-butyramide
[0612] ##STR556##
[0613] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (230 mg,
0.65 mmol),
2-amino-1-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-butan-1-one TFA
salt (204 mg), prepared as in reference 15, and HOBt (119 mg, 0.78
mmol) in MeCl.sub.2 (5 ml), was added EDC (187 mg, 0.98 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 82 mg of
N-{1-[Hydroxy-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-m-
orpholin-4-yl-4-oxo-2-benzylsulfonyl-methyl-butyramide; MS:
537.6(M-1), 539.8(M+1).
[0614] This amide then was treated with Dess-Martin periodinane
(111 mg, 0.149 mmol) at room temperature. After stirring for 1
hour, 5 mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 was
added. After a further 0.5 hours, the reaction mixture was
extracted with ethyl acetate, washed with brine, dried with
MgSO.sub.4 and concentrated. The residue was purified with silica
gel column chromatography to yield 13 mgs of
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-morpholin-4-
-yl-4-oxo-2-benzylsulfonyl-methyl-butyramide; H.sup.1
NMR(CDCl.sub.3): 7.8, 7.5(1H, d,d NH, diastereomeric), 7.4-7.2(5H,
m), 5.3-5.1(1H, m), 4.6(2H, s, OCH.sub.2), 4.3-4.1(3H, m),
3.8-3.1(13H, m), 3-2.4(2H, m), 2.2-1.5(2H, m), 0.95(3H, t); MS:
535.7(M-1), 537.5(M+1).
Example 19
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzyl-
sulfonylmethyl-4-piperidin-1-yl-butyramide
[0615] ##STR557##
[0616] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (229 mg,
0.65 mmol),
2-amino-1-(5-methoxymethyl-1,3,4-oxadiazole-2-yl)-1-propanol TFA
salt (204 mg), prepared as in reference 15, and HOBt (119 mg, 0.78
mmol) in MeCl.sub.2 (5 ml), was added EDC (187 mg, 0.98 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 130 mg of
N-{1-[hydroxy-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-o-
xo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyramide; MS:
535.4(M-1), 537.7(M+1).
[0617] The amide then was treated with Dess-Martin periodinane (180
mg, 0.364 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 26 mgs of
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-piperidin-1-yl-butyramide; H.sup.1
NMR(CDCl.sub.3): 8, 7.7(1H, d,d, NH, diastereomeric), 7.4-7.2(5H,
m), 5.3-5.1(1H, m), 4.6(2H, s, OCH.sub.2), 4.3-4.1(3H, m),
3.8-3.2(9H, m), 3-2.4(2H, m), 2.2-1.4(8H, m), 0.95(3H, t); MS:
535.7(M+1).
Example 20
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzyl-
sulfonylmethyl-4-pyrrolidin-1-yl-butyramide
[0618] ##STR558##
[0619] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyric acid (220
mg, 0.65 mmol),
2-amino-1-(5-methoxymethyl-1,3,4-oxadiazole-2-yl)-1-propanol TFA
salt (204 mg), prepared as in reference 15, and HOBt (119 mg, 0.78
mmol) in MeCl.sub.2 (5 ml), was added EDC (187 mg, 0.98 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 84 mg of
N-{1-[Hydroxy-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-o-
xo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide. Without
further purification, the crude product was used for next reaction;
MS: 521.6(M-1), 523.2(M+1).
[0620] This amide was treated with Dess-Martin periodinane (114 mg,
0.153 mmol) at room temperature. After stirring for 1 hour, 5 mls
of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After
a further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 17 mg of
N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbon-yl-propyl]-4-oxo-2-benzy-
lsulfonylmethyl-4-pyrrolidin-1-yl-butyramide; H.sup.1
NMR(CDCl.sub.3): 8.2, 8(1H, d,d, NH, diastereomeric), 7.6-7.2(5H,
m), 5.3-5.1 (1H, m), 4.6(2H, s, OCH.sub.2), 4.3-4.1(3H, m),
3.8-3.2(9H, m), 3-2.4(2H, m), 2.2-1.4(6H, m), 0.95(3H, t); MS:
519.6(M-1), 521.6(M+1).
Example 21
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadia-
zole-2-carbonyl)-propyl]-butyramide
[0621] ##STR559##
[0622] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (177 mg,
0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt (175 mg), prepared as in reference 16, and HOBt (92 mg, 0.6
mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 308 mg of
N-{1-[Hydroxy-(5-phenyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-morpholi-
n-4-yl-4-oxo-2-benzylsulfonylmethyl-butyramide. Without further
purification, the crude product was used for next reaction; MS:
569.6(M-1), 571.4(M+1).
[0623] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 224 mg of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadi-
azole-2-carbonyl)-propyl]-butyramide; H.sup.1 NMR(DMSO-d): 8.9,
8.84 (1H, d, d, NH, diastereomeric), 8.1-8(2H, m), 7.7-7.6(3H, m),
7.4-7.3(5H, m), 5.1-4.9(1H, m), 4.5-4.3(2H, m), 3.6-3.3(11H, m),
3.12-3(1H, m), 2.65-2.5(1H, m), 2-1.9(1H, m), 1.8-1.7(1H, m),
0.96(3H, t); MS: 567.6(M-1), 569.4(M+1).
Example 22
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)--
propyl]-4-piperidin-1-yl-butyramide
[0624] ##STR560##
[0625] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (177 mg,
0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt (175 mg), prepared as in reference 16, and HOBt (92 mg, 0.6
mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 284 mg of
N-{1-[Hydroxy-(5-phenyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-oxo-2-he-
nylmethylsulfonylmethyl-4-piperidin-1-yl-butyramide. Without
further purification, the crude product was used for next reaction;
MS: 567.6(M-1), 569.6(M+1).
[0626] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 237 mg of
4-oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-piperidin-1-yl-butyramide; H.sup.1NMR (DMSO-d): 8.9,
8.84 (1H, d, d, NH, diastereomeric), 8.1-8(2H, m), 7.7-7.6(3H, m),
7.4-7.3(5H, m), 5.1-4.9(1H, m), 4.5-4.3(2H, m), 3.4-3.1(7H, m),
3.12-3(1H, m), 2.65-2.5(1H, m), 2-1.9(1H, m), 1.8-1.7(1H, m),
1.6-1.2(6H, m), 0.96(3H, t); MS: 565.4(M-1), 567.6(M+1).
Example 23
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)--
propyl]-4-pyrrolidin-1-yl-butyramide
[0627] ##STR561##
[0628] To a stirred mixture of
4-Oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyric acid (170
mg, 0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol
TFA salt (175 mg), prepared as above, and HOBt (92 mg, 0.6 mmol) in
MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 280 mg of
N-{1-[Hydroxy-(5-phenyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-ox-
o-2-henylmethylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide. Without
further purification, the crude product was used for next reaction;
MS: 553.6(M-1), 555.4(M+1).
[0629] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 200 mg of
4-oxo-2-benyzlsulfonylmethyl-N-[1-(5-phenyl-[1,3,4]oxadiazole-2-carbonyl)-
-propyl]-4-pyrrolidin-1-yl-butyramide; H.sup.1 NMR (DMSO-d): 8.9,
8.84 (1H, d, d, NH, diastereomeric), 8.1-8(2H, m), 7.7-7.6(3H, m),
7.4-7.3(5H, m), 5.1-4.9(1H, m), 4.5-4.3(2H, m), 3.4-3.1(7H, m),
3.12-3(1H, m), 2.65-2.5(1H, m), 2.1-1.6(6H, m), 0.96(3H, t); MS:
551.6(M-1), 553.6(M+1).
Example 24
4-Morpholin-4-yl-N-[1-(oxazolo[4,5-b].sub.pyridine-2-carbonyl)-propyl]-4-o-
xo-2-benzylsulfonylmethyl-butyramide
[0630] ##STR562##
[0631] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (177 mg,
0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt (175 mg), prepared as in reference 17, and HOBt (92 mg, 0.6
mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 308 mg of
N-[1-(Hydroxy-oxazolo[4,5-b]pyridin-2-yl-methyl)-propyl]-4-morpholin-4-yl-
-4-oxo-2-benzylsulfonylmethyl-butyramide; MS: 543.6 (M-1),
545.6(M+1)
[0632] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 224 mg of
4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-
-benzylsulfonylmethyl-butyramide; H.sup.1 NMR (DMSO-d): 8.96,
8.85(1H, d,d, NH, diastereomeric), 8.75-8.7(1H, m), 8.42-8.3(1H,
m), 7.7-7.6(1H, m), 7.4-7.3(5H, m), 5.15-5.04(1H, m), 4.5-4.3(2H,
m), 3.6-3.2(1H, m), 3.15-3.0(1H, m), 2.7-2.5(1H, m), 2.1-1.9(1H,
m), 1.8-1.7(1H, m), 0.98(3H, t); MS: 541.2(M-1), 543.2(M+1).
Example 25
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-me-
thyl-4-piperidin-1-yl-butyramide
[0633] ##STR563##
[0634] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (177 mg,
0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt (175 mg), prepared as in reference 17, and HOBt (92 mg, 0.6
mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.35 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 284 mg of
N-[1-(hydroxy-oxazolo[4,5-b]pyridin-2-yl-methyl)-propyl]-4-oxo-2-henylmet-
hylsulfonylmethyl-4-piperidin-1-yl-butyramide; MS: 541.6 (M-1),
543.4(M+1).
[0635] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 237 mg of
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-piperidin-1-yl-butyramide; H.sup.1 NMR DMSO-d): 8.93,
8.83(1H, d,d, NH, diastereomeric), 8.75-8.72(1H, m), 8.4-8.37(1H,
m), 7.7-7.6(1H, m), 7.4-7.3(5H, m), 5.15-5(1H, m), 4.5-4.3(2H, m),
3.45-3.2(9H, m), 3.1-3(1H, m), 2.67-2.5(1H, m), 2.1-1.9(1H, m),
1.84-1.7(1H, m), 1.6-1.5(2H, m), 1.5-1.3(4H, m), 0.98(3H, t); MS:
539.4(M-1), 541.2(M+1).
Example 26
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-me-
thyl-4-pyrrolidin-1-yl-butyramide
[0636] ##STR564##
[0637] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyric acid (170
mg, 0.5 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol
TFA salt (175 mg), prepared as in reference 17, and HOBt (92 mg,
0.6 mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol)
and N-methylmorpholine (0.35 ml) at room temperature. After
stirring for 14 hours, the reaction mixture was extracted with
ethyl acetate. The organic layer was washed with saturated
NaHCO.sub.3, brine, dried with MgSO.sub.4 and concentrated to yield
280 mg of
N-[1-(Hydroxy-oxazolo[4,5-b]pyridin-2-yl-methyl)-propyl]-4-oxo-2-henylmet-
hylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide. Without further
purification, the crude product was used for next reaction; MS:
527.6(M-1), 529.4(M+1).
[0638] This amide was treated with Dess-Martin periodinane (371 mg,
0.75 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 200 mg of
N-[1-(Oxazolo[4,5-b]pyridine-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonyl-m-
ethyl-4-pyrrolidin-1-yl-butyramide; H.sup.1 NMR (DMSO-d): 8.96,
8.87(1H, d,d, NH, diastereomeric), 8.75-8.72(1H, m), 8.45-8.3(1H,
m), 7.7-7.6(1H, m), 7.45-7.3(5H, m), 5.2-5(1H, m), 4.5-4.3(2H, m),
3.5-3.15(7H, m), 3.15-3(1H, m), 2.55-2.4(1H, m), 2.1-1.95(1H, m),
1.9-1.6(5H, m), 0.98(3H, t); MS: 525.2(M-1), 526.8(M+1).
Example 27
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4]-
oxadiazole-2-carbonyl)-propyl]-butyramide
[0639] ##STR565##
[0640] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (106.5
mg, 0.3 mmol),
2-Amino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol TFA
salt (105 mg), prepared as in reference 18, and HOBt (55 mg, 0.36
mmol) in MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated, yield 176 mg of
N-{1-[hydroxy-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-ox-
o-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyramide. MS:
568.4(M-1), 570(M+1)
[0641] This amide was treated with Dess-Martin periodinane (222.7
mg, 0.45 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 84 mg of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide; H.sup.1 NMR(DMSO-d):
8.95-8.85(3H, m), 8.1-8(2H, m), 7.44-7.3(5H, m), 5-4.9(1H, m),
4.5-4.3(2H, m), 3.4-3.(8H, m), 2.7-2.5(1H, m), 2.05-1.9(1H, m),
1.8-1.6(1H, m), 1.6-1.2(6H, m), 0.98(3H, t); MS: 566.6(M-1),
568.6(M+1).
Example 28
4-Oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-N-[1-(5-pyridin-4-yl-[1,3,4]-
oxadiazole-2-carbonyl)-propyl]-butyramide
[0642] ##STR566##
[0643] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (105.9
mg, 0.3 mmol),
2-amino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol TFA
salt (105 mg), prepared as in reference 18, and HOBt (55 mg, 0.36
mmol) in MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 176 mg of
N-{1-[Hydroxy-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-mo-
rpholin-4-yl-4-oxo-2-benzylsulfonyl-methyl-butyramide; MS:
570.2(M-1), 572(M+1).
[0644] This amide was treated with Dess-Martin periodinane (222.7
mg, 0.45 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 78 mg of
4-oxo-2-benzylsulfonyl-methyl-4-piperidin-1-yl-N-[1-(5-pyridin-4-yl-[1,3,-
4]oxadiazole-2-carbonyl)-propyl]-butyramide; H.sup.1NMR(DMSO-d):
9.0-8.85(3H, m), 8.1-8(2H, m), 7.44-7.3(5H, m), 54.9(1H, m),
4.5-4.3(2H, m), 3.6-3.2(1H, m), 3.15-3.05(1H, m), 2.7-2.5(1H, m),
2.05-1.9(1H, m), 1.8-1.7(1H, m), 0.96(3H, t); MS: 568.6(M-1),
570.6(M+1).
Example 29
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4]oxadiazole-2-carb-
onyl)-propyl]-4-pyrrolidin-1-yl-butyramide
[0645] ##STR567##
[0646] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyric acid (102
mg, 0.3 mmol),
2-amino-1-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol TFA
salt (105 mg), prepared as in reference 18, and HOBt (55 mg, 0.36
mmol) in MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 210 mg of
N-{1-[Hydroxy-(5-pyridin-4-yl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-ox-
o-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide. MS:
554.2(M-1), 555.8(M+1).
[0647] This amide was treated with Dess-Martin periodinane (222.7
mg, 0.45 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 102 mg of
4-Oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-4-yl-[1,3,4]oxadiazole-2-car-
bonyl)-propyl-4-pyrrolidin-1-yl-butyramide; H.sup.1 NMR (DMSO-d):
9.0-8.85(3H, m), 8.1-8(2H, m), 7.44-7.3(5H, m), 5.05-4.9(1H, m),
4.55-4.35(2H, m), 3.4-3.(8H, m), 2.6-2.4(1H, m), 2.05-1.9(1H, m),
1.9-1.6(5H, m), 0.96(3H, t); MS: 552.6(M-1), 554.6(M+1).
Example 30
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-3-yl-[1,3,4]-
oxadiazole-2-carbonyl)-propyl]-butyramide
[0648] ##STR568##
[0649] To a stirred mixture of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid (177.7
mg, 0.5 mmol),
2-amino-1-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-butan-1-ol TFA
salt (180 mg), prepared as in reference 19, and HOBt (92 mg, 0.6
mmol) in MeCl.sub.2 (5 ml), was added EDC (144 mg, 0.75 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated, yield 210 mg of
N-{1-[Hydroxy-(5-pyridin-3-yl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-mo-
rpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyramide. Without
further purification, the crude product was used for next reaction;
MS: 570.4(M-1), 572.4(M+1).
[0650] This amide was treated with Dess-Martin periodinane (277 mg,
0.56 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 110 mg of
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N-[1-(5-pyridin-3-yl-[1,3,4-
]oxadiazole-2-carbonyl)-propyl]-butyramide; H.sup.1 NMR(DMSO-d:
9.23(1H, s), 8.94, 8.88(1H, d,d, NH, diastereomeric), 8.87-8.8(1H,
m), 8.46-8.4(1H, m), 7.7-7.6(1H, m), 7.4-7.25(5H, m), 5.05-4.9(1H,
m), 4.55-4.3(2H, m), 3.6-3.15(1H, m), 3.14-3(1H, m), 2.7-2.5(1H,
m), 2.05-1.9(1H, m), 1.8-1.65(1H, m), 0.98(3H, t); MS: 568.5(M-1),
570.3(M+1).
Example 31
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pipe-
ridin-1-yl-butyramide
[0651] ##STR569##
[0652] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-piperidin-1-yl-butyric acid (141 mg,
0.4 mmol), 2-amino-1-benzooxazol-2-yl-butan-1-ol TFA salt. (129
mg), prepared as in reference 20, and HOBt (74 mg, 0.48 mmol) in
MeCl.sub.2 (5 ml), was added EDC (115 mg, 0.6 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 157 mg of
N-[1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-4-oxo-2-enylmethylsu-
lfonylmethyl-4-piperidin-1-yl-butyramide. Without further
purification, the crude product was used for next reaction; MS:
540.4(M-1), 542.6(M+1).
[0653] This amide was treated with Dess-Martin periodinane (215.3
mg, 0.435 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 103.3 mg of
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pip-
eridin-1-yl-butyramide; H.sup.1 NMR(DMSO-d): 8.84, 8.76(1H, d,d,
J=5.6 Hz, J=6.4 Hz, NH, diastereomeric), 8.02-7.96(1H, m),
7.92-7.86(1H, m), 7.68-7.62(1H, m), 7.58-7.52(1H, m), 7.44-7.32(5H,
m), 5.24-5.12(1H, m), 4.52-4.38(2H, m), 3.5-3.22(7H, m),
3.12-3.02(1H, m), 2.64-2.52(1H, m), 2.04-1.94(1H, m), 1.8-1.68(1H,
m), 1.6-1.48(2H, m), 1.48-1.32(4H, m), 0.98(3H, t, J=7.6 Hz); MS:
540.4(M+1).
Example 32
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyrr-
olidin-1-yl-butyramide
[0654] ##STR570##
[0655] To a stirred mixture of
4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyric acid (135.6
mg, 0.4 mmol), 2-amino-1-benzooxazol-2-yl-butan-1-ol TFA salt (129
mg), prepared as in reference 20, and HOBt (73.4 mg, 0.48 mmol) in
MeCl.sub.2 (5 ml), was added EDC (115.2 mg, 0.6 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 260 mg of
N-[1-(Benzooxazol-2-yl-hydroxy-methyl)-propyl]-4-oxo-2-henylmethylsulfony-
lmethyl-4-pyrrolidin-1-yl-butyramide. Without further purification,
the crude product was used for next reaction; MS: 526.6(M-1),
528.6(M+1).
[0656] This amide was treated with Dess-Martin periodinane (215 mg,
0.435 mmol) at room temperature. After stirring for 1 hour, 5 mls
of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After
a further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 199 mg of
N-[1-(Benzooxazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyr-
rolidin-1-yl-butyramide; H.sup.1 NMR(DMSO-d): 8.87, 8.79(1H, d,d,
NH, J=6 Hz, J=6.4 Hz, diastereomeric), 8.04-7.96(1H, m),
7.92-7.86(1H, m), 7.68-7.62(1H, m), 7.58-7.5(1H, m), 7.44-7.32(5H,
m), 5.25-5.14(1H, m), 4.52-4.38(2H, m), 3.5-3.04(7H, m),
3.03-3.01(1H, m), 2.52-2.4(1H, m), 2.05-1.9(1H, m), 1.9-1.65(5H,
m), 0.98(3H, m); MS: 526.3(M+1).
Example 33
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-yl-
-4-oxo-butyramide
[0657] ##STR571##
[0658] To a stirred mixture of
2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid (84.9 mg,
0.3 mmol), 2-amino-1-benzooxazol-2-yl-butan-1-ol TFA salt (96.9
mg), prepared as in reference 21, and HOBt (55.1 mg, 0.36 mmol) in
MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol) and
N-methylmorpholine (0.25 ml) at room temperature. After stirring
for 14 hours, the reaction mixture was extracted with ethyl
acetate. The organic layer was washed with saturated NaHCO.sub.3,
brine, dried with MgSO.sub.4 and concentrated to yield 150 mg of
N-[1-(benzooxazol-2-yl-hydroxy-methyl)-propyl]-2-cyclohexylmethyl-4-
-morpholin-4-yl-4-oxo-butyramide; MS: 470.5(M-1), 472.4(M+1).
[0659] This amide was treated with Dess-Martin periodinane (237.6
mg, 0.48 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 76 mg of
N-[1-(benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-y-
l-4-oxo-butyramide; H.sup.1 NMR(DMSO-d): 8.49(1H, d, J=5.2 Hz, NH),
7.96(1H, d, J=7.6 Hz), 7.86(1H, d, J=8.4), 7.6(1H, m), 7.5(1H, m),
5.14-5.04(1H, m), 3.6-3.25(8H, m), 2.9-2.75(1H, m), 2.5-2.4(1H, m),
2.25-2.15(1H, m), 2-1.8(1H, m), 1.8-1.7(2H, m), 1.7-1.6(1H, m),
1.6-1.4(5H, m), 1.35-1.2(1H, m), 1.2-1(4H, m), 0.96(3H, t); MS:
468.6(M-1), 470.5(M+1), 492.3(M+Na).
Example 34
2-Cyclohexylmethyl-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbony-
l)-propyl]-4-oxo-butyramide
[0660] ##STR572##
[0661] To a stirred mixture of
2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid (84.9 mg,
0.3 mmol), 2-amino-1-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1-butanol TFA
salt (97.5 mg), prepared as in reference 21, and HOBt (55.1 mg,
0.36 mmol) in MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol)
and N-methylmorpholine (0.25 ml) at room temperature. After
stirring for 14 hours, the reaction mixture was extracted with
ethyl acetate. The organic layer was washed with saturated
NaHCO.sub.3, brine, dried with MgSO.sub.4 and concentrated to yield
153 mg of
2-cyclohexylmethyl-N-[1-(hydroxy-oxazolo[4,5-b]pyridin-2-yl-methyl)-propy-
l]-4-morpholin-4-yl-4-oxo-butyramide; MS: 471.6(M-1),
473.3(M+1).
[0662] This amide was treated with Dess-Martin periodinane (237.6
mg, 0.48 mmol) at room temperature. After stirring for 1 hour, 5
mls of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added.
After a further 0.5 hours, the reaction mixture was extracted with
ethyl acetate, washed with brine, dried with MgSO.sub.4 and
concentrated. The residue was purified with silica gel column
chromatography to yield 95 mg of
2-cyclohexylmethyl-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-carbon-
yl)-propyl]-4-oxo-butyramide; H.sup.1NMR(DMSO-d): 8.72-8.68(1H, m),
8.6(1H, d, J=5.2 Hz, NH), 8.4-8.34(1H, m), 7.68-7.59(1H, m),
5.2-4.96(1H, m), 3.5-3.45(8H, m), 2.58(1H, m), 2.5-2.4(1H, m),
2.45-2.15(1H, m), 2.05-1.9(1H, m), 1.85-1.65(2H, m), 1.6-1.4(5H,
m), 1.3-1.2(1H, m), 1.25-1(4H, m), 0.97(3H, t); MS: 469.6(M-1),
471.4(M+1), 493.2(M+Na).
Example 35
2-Cyclohexylmethyl-N-[1-(5-ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-mo-
rpholin-4-yl-4-oxo-butyramide
[0663] ##STR573##
[0664] To a stirred mixture of
2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid (84.9 mg,
0.3 mmol), 2-amino-1-(5-ethyl-1,3,4-oxadiazole-2-yl)-1-pentanol HCl
salt (70.5 mg), prepared as in reference 21, and HOBt (55.1 mg,
0.36 mmol) in MeCl.sub.2 (5 ml), was added EDC (86.4 mg, 0.45 mmol)
and N-methylmorpholine (0.25 ml) at room temperature. After
stirring for 14 hours, the reaction mixture was extracted with
ethyl acetate. The organic layer was washed with saturated
NaHCO.sub.3, brine, dried with MgSO.sub.4 and concentrated to yield
142 mg of
2-cyclohexylmethyl-N-{1-[(5-ethyl-[1,3,4]oxadiazol-2-yl)-hydroxy-methyl]--
butyl}-4-morpholin-4-yl-4-oxo-butyramide; MS: 463.5(M-1),
465.3(M+1).
[0665] This amide was treated with Dess-Martin periodinane (239 mg,
0.48 mmol) at room temperature. After stirring for 1 hour, 5 mls of
saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3 were added. After a
further 0.5 hours, the reaction mixture was extracted with ethyl
acetate, washed with brine, dried with MgSO.sub.4 and concentrated.
The residue was purified with silica gel column chromatography to
yield 65 mg of
2-cyclohexylmethyl-N-[1-(5-ethyl-[1,3,4]oxadiazole-2-carbonyl)-butyl]-4-m-
orpholin-4-yl-4-oxo-butyramide; H.sup.1 NMR (DMSO-d): 8.6, 8.51(1H,
dd, J=6.8 Hz, J=5.6 Hz, NH, diastereomeric), 4.98(4.88(1H, m),
3.6-3.25(8H, m), 3-2.9(2H, q, J=7.6 Hz), 2.9-2.75(1H, m),
2.5-2.4(1H, m), 2.3-2.1(1H, m), 1.9-1.7(2H, m), 1.7-1.4(7H, m),
1.4-1.2(2H, m), 1.28(3H, t), 1.2-1(6H, m), 0.88(3H, t); MS:
461.4(M-1), 463.4(M+1), 485.4(M+Na).
Example 36
N-(2-Benzooxazol-2-yl-1-methoxymethyl-2-oxo-ethyl)-2-(2-difluoromethoxy-be-
nzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide
[0666] ##STR574##
[0667] To a stirred mixture of
2-(2-difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyric
acid (210.5 mg, 0.5 mmol),
2-amino-1-benzooxazol-2-yl-3-methoxy-propan-1-ol (112.5 mg), and
HOBt (91.8 mg, 0.6 mmol) in MeCl.sub.2 (5 ml), was added EDC (144
mg, 0.75 mmol) and N-methylmorpholine (0.35 ml) at room
temperature. After stirring for 14 hours, the reaction mixture was
extracted with ethyl acetate. The organic layer was washed with
saturated NaHCO.sub.3, brine, dried with MgSO.sub.4 and
concentrated to yield 301 mg of
N-(2-benzooxazol-2-yl-2-hydroxy-1-methoxymethyl-ethyl)-2-(2-difluorometho-
xy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide; MS:
624.5(M-1), 626.3(M+1).
[0668] This amide (150 mg, 0.24 mmol) was treated with Dess-Martin
periodinane (178 mg, 0.36 mmol) at room temperature. After stirring
for 1 hour, 5 ml of saturated Na.sub.2S.sub.2O.sub.3--NaHCO.sub.3
were added. After a further 0.5 hours, the reaction mixture was
extracted with ethyl acetate, washed with brine, dried with
MgSO.sub.4 and concentrated. The residue was purified with silica
gel column chromatography to yield 39 mg of
N-(2-Benzooxazol-2-yl-1-methoxymethyl-2-oxo-ethyl)-2-(2-difluoromethox-
y-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide; H.sup.1
NMR(DMSO-d): 8.97, 8.8(1H, dd, J=5.6 Hz, J=5.6 Hz, NH,
diastereomeric), 8.02-7.94(1H, m), 7.9-7.84(1H, m), 7.66-7.58(1H,
m), 7.55-7.38(3H, m), 7.3-7.18(2H, m), 7.1(1H, t, J=73.6 Hz),
5.54-5.42(1H, m), 4.6-4.4(4H, m), 3.92-3.84(1H, m), 3.82-3.72(1H,
m), 3.68-3.1 (11H, m), 2.7-2.56(1H, m), 1.7-1.55(1H, m), 1.3-1(1H,
m); MS: 622.4(M-1), 624.3(M+1), 646.3(M+Na).
Example 37
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-(2-cyclohexyl-ethyl)-4-morpholin--
4-yl-4-oxo-butyramide
[0669] ##STR575##
[0670] .sup.1H NMR: (DMSO) 8.47 (d, J=6 Hz, 1H), 7.96 (d, J=8.2 Hz,
1H), 7.86 (d, J=8.2 Hz, 1H), 7.59 (t, J=8.2 Hz, 1H), 7.51 (t, J=8.2
Hz, 1H), 5.09-5.03 (m, 1H), 3.56-3.27 (m, 8H), 2.72-2.64 (m, 1H),
2.54-2.46 (m, 1H), 2.21 (dd, J=15.8 Hz, J=5.3 Hz, 1H), 1.99-1.89
(m, 1H), 1.76-1.65 (m, 1H), 1.60-0.95 (m, 13H), 0.96 (t, J=7 Hz,
3H), 0.72-0.60 (m, 2H). MS: (M+H).sup.+ 484.
Example 38
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-N-[1-(oxazolo[4,5-b]pyridine-2-car-
bonyl)-propyl]-4-oxo-butyramide
[0671] ##STR576##
[0672] .sup.1H NMR: (DMSO) 8.71-8.68 (m, 1H), 8.58 (d, J=4.7 Hz,
1H), 8.36 (d, J=8.5 Hz, 1H), 7.66-7.61 (m, 1H), 5.00-4.93 (m, 1H),
3.56-3.26 (m, 8H), 2.72-2.63 (m, 1H), 2.54-2.44 (m, 1H), 2.20 (dd,
J=15.8 Hz, J=5.3 Hz, 1H), 2.02-1.92 (m, 1H), 1.78-1.67 (m, 1H),
1.60-0.95 (m, 13H), 0.97 (t, J=7 Hz, 3H), 0.68-0.57 (m, 2H). MS:
(M+H).sup.+ 485.
Example 39
2-(2-Cyclohexyl-ethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5-phenyl-[1,3,4]oxadia-
zole-2-carbonyl)-propyl]-butyramide
[0673] ##STR577##
[0674] .sup.1H NMR: (DMSO) 8.54 (d, J=4.7 Hz, 1H), 8.10-8.04 (m,
2H), 7.70-7.58 (m, 3H), 4.91-4.85 (m, 1H), 3.55-3.22 (m, 8H),
2.70-2.62 (m, 1H), 2.56-2.45 (m, 1H), 2.22 (dd, J=15.5 Hz, J=5 Hz,
1H), 1.98-1.88(m, 1H), 1.77-1.66(m, 1H), 1.60-0.95(m, 13H), 0.96(t,
J=7 Hz, 3H), 0.75-0.60 (m, 2H). MS: (M+H).sup.+ 511.
Example 40
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-4-oxo-N-[1-(5--
phenyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-butyramide
[0675] ##STR578##
[0676] 1:1 Mixture of diastereomers. .sup.1H N: (DMSO), 8.89 (d,
J=5.6 Hz), 8.82 (d, J=6 Hz) 1H], 8.08-8.03 (m, 2H), 7.70-7.18 (m,
7H), 7.11 (t, JH,F=74 Hz), 7.08 (t, JH,F=74 Hz) 1H], 5.01-4.90 (m,
1H), 4.56-4.43 (m, 2H), 3.56-3.13 (m, 10H), 2.68-2.40 (m, 3H),
2.00-1.90 (m, 1H), 1.78-1.68 (m, 1H), 0.96 (t, J=7 Hz, 3H). MS:
(M+H).sup.+ 635.
Example 41
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-N-[1-(5-ethyl-[1,3,4]oxadiazole-
-2-carbonyl)-butyl]-4-morpholin-4-yl-4-oxo-butyramide
[0677] ##STR579##
[0678] 1:1 Mixture of diastereomers. .sup.1H NMR: (DMSO), 8.82 (d,
J=5.5 Hz), 8.77 (d, J=5 Hz) 1H], 7.51-7.42 (m, 2H), 7.30-7.19 (m,
2H), 7.11 (t, JH,F=74 Hz), 7.10 (t, JH,F=74 Hz) 1H], 5.02-4.92 (m,
1H), 4.56-4.43 (m, 2H), 3.58-3.26 (m, 10H), 3.20-3.12 (m, 1H),
2.98-2.89 (m, 2H), 2.68-2.44 (m, 2H), 1.86-1.76 (m, 1H), 1.69-1.58
(m, 1H), 1.46-1.20 (m, 5H), 0.88 (t, J=7 Hz, 3H). MS: (M+H).sup.+
601.
Example 42
N-[1-(Benzooxazole-2-carbonyl)-propyl]-2-(2-difluoromethoxy-benzyl-sulfony-
lmethyl)-4-morpholin-4-yl-4-oxo-butyramide
[0679] ##STR580##
[0680] 1:1 Mixture of diastereomers. .sup.1H NMR: (DMSO), 8.85 (d,
J=5.3 Hz), 8.76 (d, J=5.3 Hz) 1H], 7.97 (t, J=6.5 Hz, 1H),
7.89-7.84 (m, 1H), 7.64-7.18 (m, 6H), 7.12 (t, JH,F=74 Hz), 7.10
(t, JH,F=74 Hz) 1H], 5.22-5.11 (m, 1H), 4.56-4.42 (m, 2H),
3.58-3.12 (m, 11H), 2.67-2.42 (m, 2H), 2.02-1.92 (m, 1H), 1.78-1.66
(m, 1H), 0.96 (t, J=7 Hz, 3H). MS: (M+H).sup.+ 608.
Example 43
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
1-(benzooxazole-2-carbonyl)-propyl]-amide
[0681] ##STR581##
[0682] 2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
(83.7 mg, 0.274 mmol), prepared as in reference 25, and HOBT (62.9
mg, 0.466 mmol) were added to a suspension of PS-bound
N-Cyclohexylcarbodiimide (HL 200-400 mesh cross linked with 2% DVB)
from Novabiochem (322.3 mg, 0.548 mmol, 1.7 mmol/g loading) in
methylene chloride (8 ml) and stirred at room temperature for 15
minutes. 2-Amino-1-benzooxazol-2-yl-butan-1-ol (56.5 mg. 0.274
mmol), prepared as in reference 20, was added and the reaction
mixture stirred overnight at room temperature. Silicycle
trisamine-3 (380.5 mg, 1.37 mmol, 3.6 mmol/g loading) was added and
stirred for another 2 hours. The mixture was filtered and the
filtrate evaporated under reduced pressure to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
1-(benzooxazol-2-yl-hydroxy-methyl)-propyl]-amide as a yellow solid
(128 mg).
[0683] To a solution of
2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
1-(benzooxazol-2-yl-hydroxy-methyl)-propyl]-amide (128 mg, 0.259
mmol) in methylene chloride (5 ml), Dess-Martin Periodinane (0.519
mmol, 220 mg) was added and stirred at room temperature for 90
minutes. The reaction mixture was washed with a solution of
Na.sub.2S.sub.2O.sub.3 in saturated NaHCO.sub.3, dried over
MgSO.sub.4 and concentrated under reduced pressure. The residue was
purified by chromatography, eluting with a mixture of ethyl acetate
and heptane, to give
2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
1-(benzooxazole-2-carbonyl)-propyl]-amide as a mixture of
diastereoisomers (77 mg); .sup.1H NMR (CDCl.sub.3) 7.90 (d, J=8 Hz,
1H), 7.65 (d, J=8.2 Hz, 1H), 7.55 (t, J=7.3 Hz, 1H), 7.46 (t, J=7.2
Hz, 1H), 7.4-7.1 (m, 5H), 7.0 (d, J=7.4 Hz), 6.76 (d, J=7.1 Hz),
1H], 5.60 (m, 1H), 3.8-3.4 (m, 8H), 3.1-2.5 (m, 4H), 2.4-2.1 (m,
2H), 2.0-1.6 (m, 4H), 1.5 (m, 1H), 1.1 (m, 3H). MS: 492
(MH.sup.+).
Example 44
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(5-phenyl-1,2,4-ox-
adiazole-3-carbonyl)-propyl]-butyramide
[0684] ##STR582##
[0685] Similarly prepared according to the general procedure given
for Example 43 but using
(R)-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid,
prepared as described in reference 21, and
(S)-2-amino-1-(5-phenyl-[1,2,4]oxadiazol-3-yl)-butan-1-ol, prepared
as in reference 26; MS: 519 (M+Na), LC-MS retention time 4.5 min;
.sup.1H NMR (CDCl.sub.3) 8.19 (d, J=7 Hz, 2H), 7.65-7.51 (m. 3H),
6.64 (d, J=7 Hz, 1H), 5.44-5.38 (m, 1H), 3.69-3.38 (m, 8H),
3.05-2.98 (m, 1H), 2.76 (dd, J=16 Hz & 10 Hz, 1H), 2.26 (dd,
J=16 Hz & 3 Hz, 1H), 2.10 (m, 1H), 1.80 (m, 1H), 1.75-1.59 (m,
6H), 1.28-1.13 (m, 5H), 1.03-0.98 (t, J=7 Hz, 3H), 0.92-0.81 (m,
2H).
Example 45
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
(S)-1-(5-phenyl-[1,2,4]oxadiazole-3-carbonyl)-propyl]-amide
[0686] ##STR583##
[0687] Similarly prepared according to the procedure for Example 43
but using 2-(2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
and (S)-2-amino-1-(5-phenyl-[1,2,4]oxadiazol-3-yl)-butan-1-ol; MS:
541 (M+Na), LCMS retention time 4.44 and 4.53 min; .sup.1H NMR
(CDCl.sub.3) 8.18 (d, J=7 Hz, 2H), 7.69-7.51 (m, 3H), 7.27-7.10 (m,
5H), 6.99-6.7 (d, J=7 Hz, 1H), 5.38 (m, 1H), 3.70-3.36 (m, 8H),
2.99-2.56 (m, 4H), 2.27 (m, 1H), 2.11 (m, 1H), 1.87-1.60 (m, 4H),
1.44 (m, 1H), 1.02-0.97(dt, J=7 Hz, 3H).
Example 46
4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-N--[(S)-1-(5-phenyl-1,2,4-ox-
adiazole-3-carbonyl)-propyl]-butyramide
[0688] ##STR584## Similarly prepared according to the procedure for
Example 43 but using
4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid and
(S)-2-amino-1-(5-phenyl-[1,2,4]oxadiazol-3-yl)-butan-1-ol; MS: 569
(MH.sup.+), LCMS retention time 4.1 min; .sup.1H NMR (CDCl.sub.3)
8.18 (d, J=7.9 Hz, 2H), 7.74-7.31 (m, 9H), 5.27 (m, 1H), 4.25 (m,
2H), 3.71-3.41 (m, 8H), 2.95 (m, 1H), 2.78-2.70 (m, 2H), 2.10 (m,
1H), 1.85 (m, 1H), 1.0 (m, 3H).
Example 47
(R)-2-Cyclohexylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-phenyl-1,2,4-ox-
adiazole-5-carbonyl)-propyl]-butyramide
[0689] ##STR585##
[0690] Similarly prepared according to the general procedure given
for Example 43 above but using
(R)-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyric acid and
(S)-2-amino-1-(3-phenyl-[1,2,4]oxadiazol-5-yl)-butan-1-ol; MS: 497
(MH.sup.+).
Example 48
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-4-oxo-2-benzyl-
sulfonylmethyl-butyramide
[0691] ##STR586##
[0692] Compound 104 was synthesized according to the following
reaction protocol: ##STR587##
[0693] Compound 1 (0.1066 g, 0.3 mmol) and compound 2 (0.0806 g,
0.3 mmol) were mixed with EDC (0.0633 g, 0.33 mmol), HOBT (0.0446
g, 0.33 mmol) and DIEA (0.2 ml, 1.2 mmol) in 3 ml of DMF which was
stirred at room temperature overnight. The reaction was diluted
with ethyl acetate and washed with cold 1N HCl, saturated sodium
bicarbonate and brine. The organic layer was dried over magnesium
sulfate, filtered and concentrated under reduced pressure. The
crude product was purified using a 10 g silica gel column eluting
with 10% ethyl acetate/n-heptane to 80% ethyl acetate/n-heptane to
give 79.4 mg (46%) of product 3. Compound 3 (73 mg, 0.13 mmol) was
then dissolved in 1 ml of methylene chloride and Dess-Martin
periodinane (15% in methylene chloride, 0.7358 g) was added and the
reaction was allowed to at room temperature for 3 hours and excess
Dess-Martin reagent was consumed by adding sodium thiosulfate in
saturated sodium bicarbonate. The product was extracted with ethyl
acetate and the organic layer was dried over magnesium sulfate,
filtered and concentrated under reduced pressure. The product was
purified using a 10 g silica gel column eluting with 100% n-heptane
to 30% n-heptane/ethyl acetate to yield 32.2 mg (44%) of the final
compound 4; LCMS retention time 3:57 minutes, M+1 (568.2).
Example 49
N-(1,1-Dimethyl-2-oxazol-2-yl-2-oxo-ethyl)-4-morpholin-4-yl-4-oxo-2-benzyl-
sulfonylmethyl-butyramide
[0694] ##STR588##
[0695] Compound 105 was synthesized according to the following
reaction protocol: ##STR589##
[0696] Compound 1 (0.1066 g, 0.3 mmol) and compound 2 (0.0572 g,
0.3 mmol) were mixed with EDC (0.0633 g, 0.33 mmol), HOBT (0.0446
g, 0.33 mmol) and DIEA (0.2 ml, 1.2 mmol) in 3 ml of DMF which was
stirred at room temperature overnight. The reaction was diluted
with ethyl acetate and washed with cold 1N HCl, saturated sodium
bicarbonate and brine. The organic layer was dried over magnesium
sulfate, filtered and concentrated under reduced pressure. The
crude product was purified using a 10 g silica gel column eluting
with 10% ethyl acetate/n-heptane to 80% ethyl acetate/n-heptane to
give 15 mg (10%) of final product 3; LCMS retention time 3:10
minutes, M+1 (492.2).
Example 50
N-4-Isopropyl-N-1-[1-(oxazole-2-carbonyl)-3-phenyl-propyl]-2-benzylsulfony-
lmethyl-succinamide
[0697] ##STR590##
[0698] Compound 106 was synthesized according to the following
reaction protocol: ##STR591##
[0699] To a stirring suspension of N-Cyclohexylcarbodiimide,
N'-methyl polystyrene resin (1.7 mmole/gram, 0.3529 g, 0.6 mmol) in
10 ml of methylene chloride was added the acid 1 (98.2 mg, 0.3
mmol) and HOBT (69 mg, 0.51 mmol) which was allowed to stir for 15
minutes at room temperature. Compound 2 (80.6 mg, 0.3 mmol) and
DIEA (0.1 ml, 0.5 mmol) were added and the reaction was allowed to
stir for 5 hours at room temperature. Then silicycle triamine.TM.
(0.42 g, 1.5 mmol) was added and the reaction was stirred overnight
at room temperature. The reaction was filtered and the solvent was
removed under reduced pressure. The crude product 3 was used
without further purification. Crude compound 3 was dissolved in
methylene chloride and Dess-Martin reagent (15% in methylene
chloride, 1.13 g, 0.6 mmol) was added and the reaction was allowed
to stir at room temperature for 3 hours. The excess Dess-Martin
reagent was consumed by adding sodium thiosulfate in saturated
sodium bicarbonate. The product was extracted with ethyl acetate
and washed with brine. The organic layer was dried over magnesium
sulfate, filtered and concentrated under reduced pressure. The
product was purified using HPLC to yield 15 mg of final compound 4;
LCMS retention time 3:07 minutes, M+1(540.2).
Example 51
2-(2-Difluoromethoxy-benzylsulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole--
2-carbonyl)-3-phenyl-propyl]-4-oxo-butyramide
[0700] ##STR592##
[0701] Compound 107 was synthesized according to the following
reaction protocol: ##STR593##
[0702] To a stirring suspension of N-Cyclohexylcarbodiimide,
N'-methyl polystyrene resin (1.7 mmole/gram, 0.2353 g, 0.4 mmol) in
10 ml of methylene chloride was added the acid 1 (84.3 mg, 0.2
mmol) and HOBT (45.9 mg, 0.34 mmol) which was allowed to stir for
15 minutes at room temperature. Compound 2 (53.75 mg, 0.2 mmol) and
DIEA (0.068 ml, 0.4 mmol) were added and the reaction was allowed
to stir for 5 hours at room temperature. Then silicycle
triamine.TM. (0.28 g, 1.0 mmol) was added and the reaction was
stirred overnight at room temperature. The reaction was filtered
and the solvent was removed under reduced pressure. The crude
product 3 was used without further purification. Crude compound 3
was dissolved in methylene chloride and Dess-Martin reagent (15% in
methylene chloride, 1.13 g, 0.6 mmol) was added and the reaction
was allowed to stir at room temperature for 3 hours. The excess
Dess-Martin reagent was consumed by adding sodium thiosulfate in
saturated sodium bicarbonate. The product was extracted with ethyl
acetate and washed with brine. The organic layer was dried over
magnesium sulfate, filtered and concentrated under reduced
pressure. The product was purified using HPLC to yield 6 mg of
final compound 4; LCMS retention time 3:09 minutes, M+1
(634.4).
Example 52
2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-N-[1-(oxazole-2-car-
bonyl)-3-phenyl-propyl]-4-oxo-butyramide
[0703] ##STR594##
[0704] Compound 108 was synthesized according to the following
reaction protocol: ##STR595##
[0705] To a stirring suspension of N-Cyclohexylcarbodiimide,
N'-methyl polystyrene resin (1.7 mmole/gram, 0.2353 g, 0.4 mmol) in
10 ml of methylene chloride was added the acid 1 (64.3 mg, 0.2
mmol) and HOBT (45.9 mg, 0.34 mmol) which was allowed to stir for
15 minutes at room temperature. Compound 2 (53.75 mg, 0.2 mmol) and
DIEA (0.068 ml, 0.4 mmol) were added and the reaction was allowed
to stir for 5 hours at room temperature. Then silicycle
triamine.TM. (0.28 g, 1.0 mmol) was added and the reaction was
stirred overnight at room temperature. The reaction was filtered
and the solvent was removed under reduced pressure. The crude
product 3 was used without further purification. Crude compound 3
was dissolved in methylene chloride and Dess-Martin reagent (15% in
methylene chloride, 1.13 g, 0.6 mmol) was added and the reaction
was allowed to stir at room temperature for 3 hours. The excess
Dess-Martin reagent was consumed by adding sodium thiosulfate in
saturated sodium bicarbonate. The product was extracted with ethyl
acetate and washed with brine. The organic layer was dried over
magnesium sulfate, filtered and concentrated under reduced
pressure. The product was purified using HPLC to yield 25.7 mg of
final compound 4; LCMS retention time 2:89 minutes, M+1(534.4).
Example 53
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-N-[1-(oxazole-2-carbony-
l)-3-phenyl-propyl]-4-oxo-butyramide
[0706] ##STR596##
[0707] Compound 109 was synthesized according to the following
reaction protocol: ##STR597##
[0708] To a stirring suspension of N-Cyclohexylcarbodiimide,
N'-methyl polystyrene resin (1.7 mmole/gram, 0.2353 g, 0.4 mmol) in
10 ml of methylene chloride was added the acid 1 (63.9 mg, 0.2
mmol) and HOBT (45.9 mg, 0.34 mmol) which was allowed to stir for
15 minutes at room temperature. Compound 2 (53.75 mg, 0.2 mmol) and
DIEA (0.068 ml, 0.4 mmol) were added and the reaction was allowed
to stir for 5 hours at room temperature. Then silicycle
triamine.TM. (0.28 g, 1.0 mmol) was added and the reaction was
stirred overnight at room temperature. The reaction was filtered
and the solvent was removed under reduced pressure. The crude
product 3 was used without further purification. Crude compound 3
was dissolved in methylene chloride and Dess-Martin reagent (15% in
methylene chloride, 1.13 g, 0.6 mmol) was added and the reaction
was allowed to stir at room temperature for 3 hours. The excess
Dess-Martin reagent was consumed by adding sodium thiosulfate in
saturated sodium bicarbonate. The product was extracted with ethyl
acetate and washed with brine. The organic layer was dried over
magnesium sulfate, filtered and concentrated under reduced
pressure. The product was purified using HPLC to yield 11.6 mg of
final compound 4; LCMS retention time 2:77 minutes, M+1
(532.4).
Example 54
N-[1-(Benzooxazole-2-carbonyl)-butyl]-2-benzylsulfonyl-3-(tetrahydro-pyran-
-4-yloxymethyl)-propionamide
[0709] ##STR598##
[0710] Diisopropylethylamine (0.184 ml, 1.05 mmol) was added to a
mixture of
3-benzylsulfonyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid
(362 mg, 1.05 mmol), prepared as in reference 27, and
2-amino-1-benzooxazol-2-yl-pentan-1-ol (238 mg, 1.05 mmol) and HATU
(402 mg, 1.05 mmol) in DMF (10 ml) and stirred at room temperature
overnight. Solvent was evaporated under reduced pressure, crude
extract was taken up in ethyl acetate (30 ml) and washed with 1N
HCl, saturated NaHCO.sub.3 and brine. After drying over MgSO.sub.4
the solvent was removed by rotary evaporation and the residue
chromatographed on silica eluting with ethyl acetate/heptane
mixture to give
N--[(S)-1-(benzoxazol-2-yl-hydroxy-methyl)-butyl]-2-benzylsulfonylmethyl--
3-(tetrahydro-pyran-4-yloxy)-propionamide (Yield: 258 mg); MS: 545
(M+1); LCMS retention time 3.71 and 3.76 minutes.
[0711] A solution of
N--[(S)-1-(benzoxazol-2-yl-hydroxy-methyl)-butyl]-2-benzylsulfonylmethyl--
3-(tetrahydro-pyran-4-yloxy)-propionamide (243 mg, 0.45 mmol)
methylene chloride (8 ml) was treated with Dess-Martin periodinane
(190 mg, 0.45 mmol) at room temperature for 2 hours. Washed with
0.26M solution of Na.sub.2S.sub.2O.sub.3, NaHCO.sub.3 and brine.
After drying over MgSO.sub.4 the solvent was removed by rotary
evaporation and the residue chromatographed on silica eluting with
ethyl acetate/heptane mixture to give
N-[1-(benzooxazole-2-carbonyl)-butyl]-2-benzylsulfonyl-3-(tetrahydro-
-pyran-4-yloxymethyl)-propionamide as off white solid (Yield: 60
mg); MS: 543 (M+1); LCMS retention time 4.1 minutes.
Example 55
N-[1-(Benzooxazole-2-carbonyl)-butyl-3-ethanesulfonyl-2-(tetrahydro-pyran--
4-yloxymethyl)-propionamide
[0712] ##STR599##
[0713] By following the method for Example 54 but substituting the
required carboxylic acid with
3-ethylsulfonyl-2-(tetrahydro-pyran-4-yloxymethyl)-propionic acid,
as prepared in reference 27b,
N-[1-(benzooxazole-2-carbonyl)-butyl]-3-ethanesulfonyl-2-(tetrahydropyran-
-4-yloxymethyl)-propionamide was prepared. MS: 481 (M+1); LCMS
retention time 3.7 minutes.
Example 56
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-cyclopropylmethylsulfonylmethyl--
4-morpholin-4-yl-4-oxo-butyramide
[0714] ##STR600##
[0715] Compound 112 was prepared by the following protocol. The
circle symbolizes the polystyrene backbone while the square
symbolizes the silicium dioxide backbone: ##STR601##
[0716] 1.16 mol-equivalents of the acid were dissolved in
dichloromethyl. N-Cyclohexylcarbodiimide, N'-methylpolystyrene (2
mol-equivalents) and hydroxybenzotriazole (1.72 mol-equivalents)
were added and the resulting reaction mixture stirred for 10
minutes. 4-Amino-3-hydroxy-azepane-1-carboxylic acid tert-butyl
ester (1 mol-equivalent) was added and stirring continued for 21
hours. Silicycle-Triamine-3.TM. was added and the resulting mixture
stirred for six hours. The mixture was filtered under suction and
the filtrate concentrated under vacuum.
[0717] The alcohol was dissolved in dichloromethyl and 2
mol-equivalents of Dess-Martin periodinane were added to the
solution. The reaction mixture was stirred for one hour. Equal
volumes of saturated sodium thiosulfate solution and sat sodium
bicarbonate solution were added and the phases separated. The
aqueous phase was extracted three times with dichloromethyl. The
combined organic phases were washed with saturated sodium
bicarbonate solution and saturated sodium chloride solution. The
solution was dried with magnesium sulfate and the solvents
evaporated.
[0718] The azepanone-1-carboxylic acid tert-butyl ester was
dissolved in a dichloromethyl solution (20 vol-%) of
trifluoroacetic acid. After stirring for one hour dichloromethyl
was removed under reduced pressure and trifluoroacetic acid under
high vacuum. The solid residue was re-dissolved in dichloromethyl
and five mol-equivalent of triethylamine were added. 1.2
mol-equivalent of benzenesulfonyl chloride were added and the
reaction mixture stirred for four hours. 12 mol-equivalents of
Silicycle Triamine.TM. were added and stirring continued for two
hours. The mixture was filtered under suction and the
dichloromethyl evaporated under reduced pressure. The crude product
was purified via preparative HPLC yielding
N-(1-benzenesulfonyl-3-oxo-azepan-4-yl)-2-cyclopropylmethylsulfonylmethyl-
-4-morpholin-4-yl-4-oxo-butyramide as an off-white solid; LC/MS
retention time 2.61 minutes, m/z=570 (M+H).
[0719] The following examples were prepared according to methods
described in Example 56:
2-Cyclopropylmethylsulfonylmethyl-N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-ox-
adiazol-5-yl)-methyl]-propyl)-4-morpholin-4-yl-4-oxo-butyramide
[0720] ##STR602##
[0721] Tan solid; LC/MS retention time 3.456 minutes (TIC), m/z=557
(M+Na).
N-{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-2-(2-
-methylpropane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyramide
[0722] ##STR603##
[0723] Tan solid; LC/MS retention time 3.594 minutes (TIC), m/z=559
(M+Na).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid
{(S)-1-[(R)-hydroxy-(3-phenyl-1,2,4-oxadiazol-5-yl)-methyl]-propyl}-amide
[0724] ##STR604##
[0725] Tan solid; LC/MS retention time 3.379 minutes (TIC), m/z=521
(M+H).
2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3-phen-
yl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide
[0726] ##STR605##
[0727] Tan solid; LC/MS retention time 2.976 minutes (TIC), m/z=533
(M+H).
2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-N--[(S)-1-(3--
phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-butyramide
[0728] ##STR606##
[0729] Tan solid; LC/MS retention time 3.433 minutes (TIC), m/z=535
(M+H).
2-(2-Morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic acid,
(S)-1-(3-phenyl-1,2,4-oxadiazole-5-carbonyl)-propyl]-amide
[0730] ##STR607##
[0731] Tan solid; LC/MS retention time 3.762 minutes (TIC), m/z=519
(M+H).
Example 57
3-Hydroxy-4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butylamino)-aze-
pane-1-carboxylic acid tert-butyl ester
[0732] ##STR608##
[0733] Tan solid prepared according to example 56; LC/MS retention
time 2.985 minutes (TIC), m/z=568 (M+H) and 590 (M+Na).
Example 58
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)--
3-hydroxy-azepane-1-carboxylic acid tert-butyl ester
[0734] ##STR609##
[0735] Tan solid prepared according example 56; LC/MS retention
time 2.786 minutes (TIC), m/z=532 (M+H) and 554 (M+Na).
Example 59
3-Hydroxy-4-[2-(2-methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo--
butyrylamino]-azepane-1-carboxylic acid tert-butyl ester
[0736] ##STR610##
[0737] Tan solid prepared according example 56; LC/MS retention
time 2.903 minutes (TIC), m/z=534 (M+H).
Example 60
4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azepa-
ne-1-carboxylic acid tert-butyl ester
[0738] ##STR611##
[0739] Tan solid prepared according example 56; LC/MS retention
time 3.163 minutes (TIC), m/z=566 (M+H).
Example 61
4-(2-Cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyrylamino)--
3-oxo-azepane-1-carboxylic acid tert-butyl ester
[0740] ##STR612##
[0741] Tan solid prepared according to example 56; LC/MS retention
time 2.965 minutes (TIC), m/z=530 (M+H).
Example 62
4-[2-(2-Methyl-propane-1-sulfonylmethyl)-4-morpholin-4-yl-4-oxo-butyrylami-
no]-3-oxo-azepane-1-carboxylic acid tert-butyl ester
[0742] ##STR613##
[0743] Tan solid prepared according to example 56; LC/MS retention
time 3.083 minutes (TIC), m/z=532 (M+H).
Example 63
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-4-morpholin-4-yl-4-oxo-2-benzylsul-
fonylmethyl-butyramide
[0744] ##STR614##
[0745] Off-white solid prepared according example 56; LC/MS
retention time 2.83 minutes (TIC), m/z=606 (M+H).
Example 64
N-(1-Benzenesulfonyl-3-oxo-azepan-4-yl)-2-(2-methyl-propane-1-sulfonylmeth-
yl)-4-morpholin-4-yl-4-oxo-butyramide
[0746] ##STR615##
[0747] Off-white solid prepared according example 56; LC/MS
retention time 2.72 minutes (TIC), m/z=572 (M+H).
Example 65
N-[(1S)-1-(Benzooxazol-2-yl-hydroxy-methyl)-3-phenyl-propyl]-2-cyclopropyl-
methylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyramide
[0748] ##STR616##
[0749] Compound 121 was prepared according to the following
reaction scheme: ##STR617##
[0750] 0.25 mmol (1.16 mol-equivalent) of
2-cyclopropylmethylsulfonylmethyl-4-morpholin-4-yl-4-oxo-butyric
acid was dissolved in 10 ml dichloromethyl. 252 mg, 0.43 mmol
N'-cyclohexylcarbodiimide, N-methylpolystyrene (2 mol-equivalents)
and 50 mg, 0.37 mmol hydroxybenzotriazole (1.72 mol-equivalents)
were added and the resulting reaction mixture stirred for 10
minutes. 61 mg, 0.215 mmol
2-amino-1-benzooxazol-2-yl-4-phenyl-butan-1-ol (1 mol-equivalents)
was added and stirring continued for 21 hours. 510 mg, 2.15 mmol
Silicycle-Triamine-3.TM. was added and the resulting mixture
stirred for 6 hours. The mixture was filtered under suction and the
filtrate concentrated under vacuum yielding 83 mg, 0.142 mmol (66%)
of
N-[(1S)-1-(Benzooxazol-2-yl-hydroxy-methyl)-3-phenyl-propyl]-2-cyclopropy-
lmethylsulfonyl-0methyl-4-morpholin-4-yl-4-oxo-butyramide as a tan
solid; LC/MS retention time 3.256 min (TIC), m/z=584 (M+H).
Example 66
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid, 1-(benzoxazole-2-carbonyl)-propyl]-amide
[0751] ##STR618##
[0752] PyBOP (126 mg, 0.24 mmol), DIPEA (0.096 ml, 0.55 mmol) and
2-Amino-1-benzooxazol-2-yl-butan-1-one hydrochloride (53 mg, 0.22
mmol) were added to a solution of
(R)-2-((S)-1-Hydroxy-2-morpholin-4-yl-2-oxo-ethyl)-5-phenyl-pentanoic
acid (70.7 mg, 0.22 mmol) in dry methylene chloride (5 ml) and the
reaction mixture was stirred overnight at room temperature. The
reaction was concentrated under reduced pressure, the residue
dissolved in ethyl acetate and washed with water. Organic extract
was dried over MgSO.sub.4 and evaporated under reduced pressure.
Column chromatography on silica eluting with a mixture of ethyl
acetate and heptane gave the title compound as white solid (38 mg);
.sup.1H NMR (CDCl.sub.3) .delta. 1.02 (t, J=7.4 Hz, 3H), 1.97-1.62
(m, 5H), 2.21-2.15 (m, 1H), 2.74-2.59 (m, 3H), 3.65-3.49 (m, 8H),
4.41 (m, 1H), 4.70 (m, 1H), 5.62 (m, 1H), 6.93 (d, J=7.1 Hz) 6.68
(d, J=7.1 Hz, 1H), 7.33-7.13 (m, 5H), 7.49 (t, J=8 Hz, 1H), 7.57
(t, J=8 Hz, 1H), 7.66 (d, J=5.9, 1H), 7.92 (d, J=8 Hz, 1H); MS:
508(MH.sup.+); LC/MS retention time was 3.05 minutes.
Example 67
(R)-5-(2-Difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl-2-oxo-e-
thyl)-pentanoic acid, 1-(benzoxazole-2-carbonyl)-propyl]-amide
[0753] ##STR619##
[0754] Similarly prepared according to the procedure in Example 66
but using
(R)-5-(2-difluoromethoxy-phenyl)-2-((S)-1-hydroxy-2-morpholin-4-yl--
2-oxo-ethyl)-pentanoic acid as the acidic component; .sup.1H NMR
(CDCl.sub.3) .delta. 1.06 (t, J=7.5 Hz, 3H), 1.97-1.63 (m, 5H),
2.23-2.14 (m, 1H), 2.79-2.68 (m, 3H), 3.75-3.50 (m, 8H), 4.42 (m,
if H), 4.81-4.62 (m, 1H), 5.61 (m, 1H), 6.53 (t, J=74 Hz, 1H), 6.73
(d, J=7.1 Hz), 6.98 (d, J=7.1 Hz, 1H), 7.24-7.06 (m, 4H), 7.59-7.49
(m, 2H), 7.69-7.64 (m, 1H), 7.91 (d, J=7.9 Hz, 1H); MS:
574(MH.sup.+).
Example 68
4-Morpholin-4-yl-N-[1-(oxazole-2-carbonyl)-cyclopropyl]-4-oxo-2-benzylsulf-
onyl methyl-butyramide
[0755] ##STR620##
[0756] Similarly prepared according to the procedure in Example 66
but using 4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric
acid as the acidic component and
(1-Amino-cyclopropyl)-oxazol-2-yl-methanone hydrochloride as the
basic component; MS: 490 (MH.sup.+); LC/MS, retention time 2.44
minutes.
Example 69
Cathepsin S Assay
[0757] Solutions of test compounds in varying concentrations were
prepared in 10 .mu.L of dimethyl sulfoxide (DMSO) and then diluted
into assay buffer (40 .mu.L, comprising: MES, 50 mM (pH 6.5); EDTA,
2.5 mM; and NaCl, 100 mM). Human cathepsin S(0.158 pMoles in 25
.mu.L of assay buffer) was added to the dilutions. The assay
solutions were mixed for 5-10 seconds on a shaker plate, covered
and incubated for 30 minutes at ambient temperature.
Z-Val-Val-Arg-AMC (9 nMoles in 25 .mu.L of assay buffer) was added
to the assay solutions and hydrolysis was followed
spectrophotometrically at (.lamda. 460 nm) for 5 minutes. Apparent
inhibition constants (K.sub.i) were calculated from the enzyme
progress curves using standard mathematical models.
Example 70
Cathepsin B Assay
[0758] Solutions of test compounds in varying concentrations were
prepared in 10 .mu.L of dimethyl sulfoxide (DMSO) and then diluted
into assay buffer (40 .mu.L, comprising:
N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES), 50 mM (pH
6); polyoxyethylenesorbitan monolaurate, 0.05%; and dithiothreitol
(DTT), 2.5 mM). Human cathepsin B (0.025 pMoles in 25 .mu.L of
assay buffer) was added to the dilutions. The assay solutions were
mixed for 5-10 seconds on a shaker plate, covered and incubated for
30 minutes at ambient temperature. Z-FR-AMC (20 nMoles in 25 .mu.L
of assay buffer) was added to the assay solutions and hydrolysis
was followed spectrophotometrically at (.lamda. 460 nm) for 5
minutes. Apparent inhibition constants (K.sub.i) were calculated
from the enzyme progress curves using standard mathematical
models.
Example 71
Cathepsin K Assay
[0759] Solutions of test compounds in varying concentrations were
prepared in 10 .mu.L of dimethyl sulfoxide (DMSO) and then diluted
into assay buffer (40 .mu.L, comprising: MES, 50 mM (pH 5.5); EDTA,
2.5 mM; and DTT, 2.5 mM). Human cathepsin K (0.0906 pMoles in 25
.mu.L of assay buffer) was added to the dilutions. The assay
solutions were mixed for 5-10 seconds on a shaker plate, covered
and incubated for 30 minutes at ambient temperature. Z-Phe-Arg-AMC
(4 nMoles in 25 .mu.L of assay buffer) was added to the assay
solutions and hydrolysis was followed spectrophotometrically at
(.lamda. 460 nm) for 5 minutes. Apparent inhibition constants
(K.sub.i) were calculated from the enzyme progress curves using
standard mathematical models.
Example 72
Cathepsin L Assay
[0760] Solutions of test compounds in varying concentrations were
prepared in 10 .mu.L of dimethyl sulfoxide (DMSO) and then diluted
into assay buffer (40 .mu.L, comprising: MES, 50 mM (pH 5.5); EDTA,
2.5 mM; and DTT, 2.5 mM). Human cathepsin L (0.05 pMoles in 25
.mu.L of assay buffer) was added to the dilutions. The assay
solutions were mixed for 5-10 seconds on a shaker plate, covered
and incubated for 30 minutes at ambient temperature. Z-Phe-Arg-AMC
(1 nMoles in 25 .mu.L of assay buffer) was added to the assay
solutions and hydrolysis was followed spectrophotometrically at
(.lamda. 460 nm) for 5 minutes. Apparent inhibition constants
(K.sub.i) were calculated from the enzyme progress curves using
standard mathematical models.
[0761] Compounds of the invention were tested according to the
above-described assays for protease inhibition and observed to
exhibit selective cathepsin S inhibitory activity. For example, the
compounds of the invention were found to inhibit cathepsin S
protease activity at concentrations that are least 50 fold less
than those concentrations required to produce an equiactive
inhibition of cathepsin K protease activity. The apparent
inhibition constants (K.sub.i) for compounds of the invention,
against Cathepsin S, were in the range from about 10.sup.-10M to
about 10.sup.-7M.
Example 73
Representative Pharmaceutical Formulations Containing a Compound of
Formula I
[0762] TABLE-US-00007 ORAL FORMULATION Compound of Formula I 10-100
mg Citric Acid Monohydrate 105 mg Sodium Hydroxide 18 mg Flavoring
Water q.s. to 100 mL INTRAVENOUS FORMULATION Compound of Formula I
0.1-10 mg Dextrose Monohydrate q.s. to make isotonic Citric Acid
Monohydrate 1.05 mg Sodium Hydroxide 0.18 mg Water for Injection
q.s. to 1.0 mL TABLET FORMULATION Compound of Formula I 1%
Microcrystalline Cellulose 73% Stearic Acid 25% Colloidal Silica
1%.
[0763] TABLE-US-00008 LENGTHY TABLE The patent application contains
a lengthy table section. A copy of the table is available in
electronic form from the USPTO web site
(http://seqdata.uspto.gov/?pageRequest=docDetail&DocID=US20070049594A1).
An electronic copy of the table will also be available from the
USPTO upon request and payment of the fee set forth in 37 CFR
1.19(b)(3).
* * * * *
References