U.S. patent application number 14/077660 was filed with the patent office on 2014-10-16 for hemiasterlin derivatives and uses thereof in the treatment of cancer.
This patent application is currently assigned to Eisai Co., Ltd. The applicant listed for this patent is Eisai Co., Ltd. Invention is credited to James J. Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris M. Seletsky, Mark Spyvee, Hu Yang.
Application Number | 20140309174 14/077660 |
Document ID | / |
Family ID | 28675269 |
Filed Date | 2014-10-16 |
United States Patent
Application |
20140309174 |
Kind Code |
A1 |
Kowalczyk; James J. ; et
al. |
October 16, 2014 |
HEMIASTERLIN DERIVATIVES AND USES THEREOF IN THE TREATMENT OF
CANCER
Abstract
The present invention provides compounds having formula (I):
##STR00001## and additionally provides methods for the synthesis
thereof and methods for the use thereof in the treatment of cancer,
wherein R.sub.1-R.sub.7, X.sub.1, X.sub.2, R, Q, and n are as
defined herein.
Inventors: |
Kowalczyk; James J.;
(Andover, MA) ; Kuznetsov; Galina; (Lexington,
MA) ; Schiller; Shawn; (Haverhill, MA) ;
Seletsky; Boris M.; (Andover, MA) ; Spyvee; Mark;
(Hampstead, NH) ; Yang; Hu; (Andover, MA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Eisai Co., Ltd |
Tokyo |
|
JP |
|
|
Assignee: |
Eisai Co., Ltd
Tokyo
JP
|
Family ID: |
28675269 |
Appl. No.: |
14/077660 |
Filed: |
November 12, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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13365728 |
Feb 3, 2012 |
8633224 |
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14077660 |
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12394882 |
Feb 27, 2009 |
8129407 |
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13365728 |
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11701969 |
Feb 2, 2007 |
7528152 |
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12394882 |
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10508607 |
Sep 22, 2004 |
7192972 |
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PCT/US03/08888 |
Mar 21, 2003 |
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11701969 |
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60366592 |
Mar 22, 2002 |
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Current U.S.
Class: |
514/19.4 ;
514/19.3; 514/19.5; 514/19.6; 530/330; 530/331; 546/147; 546/245;
548/491; 548/533; 564/157; 564/160 |
Current CPC
Class: |
C07K 5/06165 20130101;
A61P 11/00 20180101; A61K 38/08 20130101; C07D 211/60 20130101;
C07D 401/14 20130101; C07K 5/1016 20130101; C07C 237/22 20130101;
A61K 38/06 20130101; C07D 207/16 20130101; C07K 5/0808 20130101;
C07K 5/0821 20130101; A61P 13/00 20180101; A61P 9/00 20180101; A61P
35/00 20180101; A61P 1/00 20180101; C07K 5/06078 20130101; A61K
38/05 20130101; C07D 295/185 20130101; A61P 43/00 20180101; C07K
5/06156 20130101; A61K 38/07 20130101; C07K 5/0823 20130101; C07K
7/06 20130101; A61P 35/02 20180101; C07D 207/08 20130101 |
Class at
Publication: |
514/19.4 ;
514/19.5; 514/19.6; 530/330; 530/331; 546/147; 546/245; 548/491;
548/533; 564/157; 564/160; 514/19.3 |
International
Class: |
C07K 7/06 20060101
C07K007/06; C07K 5/083 20060101 C07K005/083; C07K 5/065 20060101
C07K005/065; A61K 38/05 20060101 A61K038/05; A61K 38/07 20060101
A61K038/07; A61K 38/06 20060101 A61K038/06; C07K 5/097 20060101
C07K005/097; C07K 5/107 20060101 C07K005/107; A61K 38/08 20060101
A61K038/08 |
Claims
1-98. (canceled)
99. A compound having the structure ##STR01083## or a
pharmaceutically acceptable salt, ester or salt of an ester
thereof; wherein g is 0, 1, 2 or 3; X.sub.2 is C(.dbd.O),
CR.sub.AR.sub.B, or --SO.sub.2--; wherein each occurrence of
R.sub.A and R.sub.B is independently hydrogen, or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; R.sub.2 is hydrogen, --(C.dbd.O)R.sub.C or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; wherein each occurrence of R.sub.C is independently
hydrogen, OH, OR.sub.D, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
wherein R.sub.D is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; R.sub.5, R.sub.6 and
R.sub.7 are each independently hydrogen, --(C.dbd.O)R.sub.E or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.E is
independently hydrogen, OH, OR.sub.F, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.5, R.sub.6 and R.sub.7 groups, taken
together, form an alicyclic, heteroalicyclic, alicyclic(aryl),
heteroalicyclic(aryl), alicyclic(heteroaryl) or
heteroalicyclic(heteroaryl) moiety, or an aryl or heteroaryl
moiety; wherein R.sub.F is an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
R.sub.8a, R.sub.9a and R.sub.10a are each independently hydrogen,
or an aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl
or heteroaryl moiety; R.sub.L1 and R.sub.L2 are each independently
hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and Q is OR.sup.Q' or
NR.sup.Q'R.sup.Q''; wherein R.sup.Q' is a heteroaliphatic moiety,
and R.sup.Q'' is hydrogen; or Q is selected from the group
consisting of ##STR01084## wherein each occurrence of r is 0, 1 or
2; wherein R.sup.Q1 is a heteroalkyl moiety and R.sup.Q2 is
hydrogen; or a pharmaceutically acceptable salt, ester or salt of
ester thereof.
100. The compound of claim 99, wherein R.sub.2 is hydrogen, or
linear or branched, cyclic or acyclic, C.sub.1-6 alkyl or
benzyl.
101. The compound of claim 99 wherein R.sub.2 is C.sub.1-6 alkyl;
R.sub.6 is tert-butyl, R.sub.7 and R.sub.10a are each methyl and
R.sub.8a is iso-propyl; R.sub.L1 and R.sub.L2 are each
independently hydrogen, C.sub.1-6 alkyl, heteroalkyl, aryl or
heteroaryl.
102. The compound of claim 99 wherein Q is: ##STR01085## or a
pharmaceutically acceptable salt, ester or salt of ester
thereof.
103. The compound of claim 99 wherein Q is: ##STR01086## or a
pharmaceutically acceptable salt, ester or salt of ester
thereof.
104. The compound of claim 99 wherein Q is OR.sup.Q', or a
pharmaceutically acceptable salt, ester or salt of ester
thereof.
105. The compound of claim 99 wherein Q is NR.sup.Q'R.sup.Q'', or a
pharmaceutically acceptable salt, ester or salt of ester
thereof.
106. The compound of claim 99 wherein the heteroaliphatic moiety is
an aliphatic chain which contains one or more oxygen, sulfur,
nitrogen, phosphorous or silicon atoms in place of carbon atoms;
and wherein the heteroaliphatic moiety is optionally substituted by
a heteroaryl moiety.
107. A pharmaceutical composition comprising a compound of claim
99, a pharmaceutically acceptable carrier or diluent, and
optionally further comprising an additional therapeutic agent.
108. The pharmaceutical composition of claim 107 wherein the
compound is present in an amount effective to inhibit cancer cell
growth in vitro.
109. The pharmaceutical composition of claim 107 wherein the
compound is present in an amount effective to cause tumor
regression in vivo.
110. A method for treating cancer comprising: administering to a
subject in need thereof a therapeutically effective amount of a
compound of claim 99.
111. A method for treating cancer comprising: administering to a
subject in need thereof a therapeutically effective amount of the
pharmaceutical composition of claim 107.
112. The method of claim 111 further comprising the administration
of a pharmaceutically acceptable carrier or diluent, and optionally
an additional therapeutic agent.
113. The method of any one of claim 110, wherein the cancer is
prostate, breast, colon, bladder, cervical, skin, testicular,
kidney, ovarian, stomach, brain, liver, pancreatic or esophageal
cancer or lymphoma, leukemia, or multiple myeloma.
114. The method of any one of claim 111, wherein the cancer is
prostate, breast, colon, bladder, cervical, skin, testicular,
kidney, ovarian, stomach, brain, liver, pancreatic or esophageal
cancer or lymphoma, leukemia, or multiple myeloma.
115. The method of any one of claim 112, wherein the cancer is
prostate, breast, colon, bladder, cervical, skin, testicular,
kidney, ovarian, stomach, brain, liver, pancreatic or esophageal
cancer or lymphoma, leukemia, or multiple myeloma.
Description
PRIORITY CLAIM
[0001] The present application claims priority to U.S. Provisional
Patent Application No. 60/366,592, filed Mar. 22, 2002, the entire
contents of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION
[0002] Hemiasterlin (1) was first isolated from the sponge
Hemiasterella minor (class, Demospongiae; order, Hadromedidia;
family, Hemiasterllidae) collected in Sodwana Bay, South Africa
(see, Kashman et al. U.S. Pat. No. 5,661,175). It was reported that
Hemiasterlin exhibited antitumor activity against several cell
lines, including human lung carcinoma, human colon carcinoma and
human melanoma.
##STR00002##
[0003] After the initial isolation and reporting of this compound,
additional hemiasterlins were isolated, and several hemiasterlin
derivatives were synthesized and their biological activity was also
investigated. It was subsequently reported that Hemiasterlin and
certain analogs thereof exhibit antimitotic activity and thus are
useful for the treatment of certain cancers (see, U.S. Pat. No.
6,153,590 and PCT application WO 99/32509). However, only a rather
limited number of Hemiasterlin analogs were prepared, half of which
were the natural products themselves, isolated from Cymbastela sp.,
or were obtained by modifications to the natural products. Thus the
number and types of derivatives that could be prepared and
evaluated for biological activity were limited.
[0004] Clearly, there remains a need to develop synthetic
methodologies to access and examine the therapeutic effect of a
variety of novel derivatives of Hemiasterlin, particularly those
that are inaccessible by making modifications to the natural
product. It would also be of particular interest to develop novel
compounds that exhibit a favorable therapeutic profile in vivo
(e.g., are safe and effective, while retaining stability in
biological media).
SUMMARY OF THE INVENTION
[0005] As discussed above, there remains a need to develop novel
Hemiasterlin analogs to evaluate their potential as therapeutic
agents for the treatment of cancer. The present invention provides
novel compounds of general formula (I),
##STR00003##
[0006] and additionally provides methods for the synthesis thereof
and methods for the use thereof in the treatment of cancer, wherein
R.sub.1-R.sub.7, X.sub.1, X.sub.2, R, Q, and n are as defined
herein. The inventive compounds also find use in the prevention of
restenosis of blood vessels subject to traumas such as angioplasty
and stenting.
DETAILED DESCRIPTION OF CERTAIN PREFERRED EMBODIMENTS OF THE
INVENTION
[0007] In recognition of the need to access and further explore the
biological activity of novel derivatives of Hemiasterlin, and this
class of peptides in general, the present invention provides novel
peptide compounds, as described in more detail herein, which
demonstrate antitumor activity. Thus, the compounds of the
invention, and pharmaceutical compositions thereof, are useful for
the treatment of cancer. In certain embodiments, the compounds of
the present invention can be used for the treatment of diseases and
disorders including, but not limited to prostate, breast, colon,
bladder, cervical, skin, testicular, kidney, ovarian, stomach,
brain, liver, pancreatic or esophageal cancer, lymphoma, leukemia
and multiple myeloma. In certain other embodiments, the inventive
compounds also find use in the prevention of restenosis of blood
vessels subject to traumas such as angioplasty and stenting.
[0008] 1) General Description of Compounds of the Invention
[0009] The compounds of the invention include compounds of the
general formula (I) as further defined below:
##STR00004##
[0010] wherein n is 0, 1, 2, 3 or 4;
[0011] X.sub.1 and X.sub.2 are each independently CR.sub.AR.sub.B,
C(.dbd.O), or --SO.sub.2--; wherein each occurrence of R.sub.A and
R.sub.B is independently hydrogen, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
[0012] R.sub.1 and R.sub.2 are each independently hydrogen,
--(C.dbd.O)R.sub.C or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; wherein each occurrence
of R.sub.C is independently hydrogen, OH, OR.sub.D, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety; wherein R.sub.D is an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
[0013] each occurrence of R.sub.3 and R.sub.4 is independently
hydrogen, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; or wherein any two
R.sub.1, R.sub.2, R.sub.3 and R.sub.4 groups, taken together, may
form an alicyclic, heteroalicyclic, alicyclicc(aryl),
heteroalicyclic(aryl), alicyclic(heteroaryl) or
heteroalicyclic(heteroaryl) moiety, or an aryl or heteroaryl
moiety;
[0014] R.sub.5, R.sub.6 and R.sub.7 are each independently
hydrogen, --(C.dbd.O)R.sub.E or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety,
wherein each occurrence of R.sub.E is independently hydrogen, OH,
OR.sub.F, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or wherein any two
R.sub.5, R.sub.6 and R.sub.7 groups, taken together, form an
alicyclic, heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety, or an
aryl or heteroaryl moiety; wherein R.sub.F is an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; or R.sub.7 may be absent when NR.sub.7 is linked to R via a
double bond;
[0015] R is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0016] Q is OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3,
.dbd.N--OH, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; wherein R.sup.Q' and
R.sup.Q'' are each independently hydrogen, or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or R.sup.Q' and R.sup.Q'', taken together with the nitrogen
atom to which they are attached, may form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety, or an
aryl or heteroaryl moiety; and pharmaceutically acceptable
derivatives thereof.
[0017] In certain embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, are not
naturally occurring Hemiasterlins.
[0018] In certain embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, do not have
the following structure:
##STR00005##
[0019] In certain embodiments of compounds described directly above
and compounds as described in certain classes and subclasses
herein, the compounds do not comprise more than four consecutive
.alpha.-amino acid residues, and/or one or more of the following
groups do not occur simultaneously as defined:
[0020] (a) n is 1; [0021] X.sub.1 and X.sub.2 are each C(.dbd.O);
[0022] R.sub.1 and R.sub.2 are each independently hydrogen,
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic,
Ar-aliphatic-, Ar-alicyclic-; and, where at least one of R.sub.1
and R.sub.2 is aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, Ar-aliphatic-, Ar-alicyclic- and neither are Ar,
Ar-aliphatic- or Ar-alicyclic-, R.sub.1 and R.sub.2, taken
together, may form a three- to seven-membered ring; wherein Ar is
defined as substituted or unsubstituted phenyl, naphtyl, anthracyl,
phenanthryl, furyl, pyrrolyl, thiophenyl, benzofuryl,
benzothiophenyl, quinolyl, isoquinolyl, imidazolyl, thiazolyl,
oxazolyl or pyridyl; [0023] R.sub.3 is hydrogen; [0024] R.sub.4 is
--CR.sub.4aR.sub.4bR.sub.4c wherein R.sub.4a and R.sub.4b are each
independently hydrogen, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, Ar-aliphatic-, Ar-alicyclic-; and, where at least
one of R.sub.4a and R.sub.4b is aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, Ar-aliphatic-, Ar-alicyclic- and
neither are Ar, Ar-aliphatic- or Ar-alicyclic-, R.sub.4a and
R.sub.4b, taken together, may form a three- to seven-membered ring;
and R.sub.4c is hydrogen, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, Ar-aliphatic-, Ar-alicyclic- and Ar; wherein Ar is
as defined directly above; [0025] R.sub.5, R.sub.6 and R.sub.7 are
each independently hydrogen, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, Ar-aliphatic-, Ar-alicyclic- and Ar; [0026] R is a
moiety selected from the group consisting of: a linear, saturated
or unsaturated, substituted or unsubstituted alkyl group containing
one to six carbon atoms; and [0027] Q is --OR.sub.G, --SR.sub.G,
--NR.sub.GR.sub.H, --NHCH(R.sub.K)CO.sub.2H, or
--NRCH(R.sub.K)CO.sub.2H, wherein R.sub.G and R.sub.H are each
independently hydrogen, aliphatic, alicyclic, heteroaliphatic or
heteroalicyclic; R.sub.K is aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, or a moiety having the structure
--(CH.sub.2).sub.tNR.sub.K1R.sub.K2, wherein t=1-4 and R.sub.K1 and
R.sub.K2 are independently hydrogen, aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic or --C(NH)(NH.sub.2);
[0028] (b) n is 1; [0029] X.sub.1 and X.sub.2 are each C(.dbd.O);
[0030] R.sub.1 is an optionally substituted methylene or --CH.dbd.
group bonded to the indole moiety thereby forming a tricyclic
moiety; [0031] R.sub.2 is hydrogen, an optionally substituted alkyl
or acyl group, or is absent when R.sub.1 is --CH.dbd. as defined
above; [0032] R.sub.3 is hydrogen or is absent when CR.sub.3 and
CR.sub.yR.sub.z, as defined herein, are linked by a double bond;
[0033] R.sub.4 is a moiety having the structure:
[0033] ##STR00006## [0034] wherein R.sub.w, R.sub.y and R.sub.z are
each independently hydrogen, or optionally substituted alkyl or
acyl, or R.sub.z is absent when CR.sub.3 and CR.sub.yR.sub.z, as
defined herein, are linked by a double bond; R.sub.x is hydrogen or
an optional substituent, or is absent when R.sub.1 is an optionally
substituted methylene or --CH.dbd. group as defined above; Y is an
optional substituent; and m is 0, 1, 2, 3 or 4; [0035] R.sub.5 is
hydrogen, OH or an optionally substituted alkyl or acyl group;
[0036] R.sub.6 is hydrogen or an optionally substituted alkyl
group; [0037] R.sub.7 is hydrogen or alkyl; and [0038]
--R--X.sub.2-Q together represent an optionally substituted alkyl
moiety;
[0039] (c) n is 1; [0040] X.sub.1 and X.sub.2 are each C(.dbd.O);
[0041] R.sub.1 is hydrogen, an optionally substituted alkyl or acyl
group, or an optionally substituted methylene or --CH.dbd. group
bonded to the indole moiety thereby forming a tricyclic moiety;
[0042] R.sub.2 is hydrogen, an optionally substituted alkyl or acyl
group, or is absent when R.sub.1 is --CH.dbd. as defined above;
[0043] R.sub.3 is hydrogen or is absent when CR.sub.3 and
CR.sub.yR.sub.z, as defined herein, are linked by a double bond;
[0044] R.sub.4 is a moiety having the structure: [0045] wherein
R.sub.w, R.sub.y and
##STR00007##
[0045] R.sub.z are each independently hydrogen, or optionally
substituted alkyl or acyl, or R.sub.z is absent when CR.sub.3 and
CR.sub.yR.sub.z, as defined herein, are linked by a double bond;
with the limitation that R.sub.y and R.sub.z are not simultaneously
hydrogen; R.sub.x is hydrogen or an optional substituent, or is
absent when R.sub.1 is an optionally substituted methylene or
--CH.dbd. group as defined above; Y is an optional substituent; and
m is 0, 1, 2, 3 or 4; [0046] R.sub.5 is hydrogen, OH or an
optionally substituted alkyl or acyl group; [0047] R.sub.6 is
hydrogen or an optionally substituted alkyl group; [0048] R.sub.7
is hydrogen or alkyl; and [0049] --R--X.sub.2-Q together represent
an optionally substituted alkyl moiety or -Q'-C(O)X, wherein Q' is
an optionally substituted --CH.sub.2--, --CH.sub.2CH.sub.2--,
--CH.sub.2CH.sub.2CH.sub.2--, --CH.sub.2CH.dbd.CH--,
--CH.sub.2C.dbd.--C-- or phenylene moiety, wherein X is --OR',
--SR' or --NR'R'' and each occurrence of R' and R'' is
independently hydrogen or optionally substituted alkyl;
[0050] (d) n is 1; [0051] X.sub.1 is C.dbd.O; [0052] R.sub.1 is
methyl; [0053] R.sub.2 and R.sub.3, taken together, form a
piperidine moiety; [0054] R.sub.4 and R.sub.5 are each hydrogen,
[0055] R.sub.6 is --CH(CH.sub.3)CH.sub.2CH.sub.3; [0056] R.sub.7 is
--CH.sub.2OC(.dbd.O)CH.sub.2CH(CH.sub.3).sub.2,
--CH.sub.2OC(.dbd.O)CH.sub.2CH.sub.2CH.sub.3 or
--CH.sub.2OC(.dbd.O)CH.sub.2CH.sub.3; and [0057] --R--X.sub.2-Q
together represent the moiety having the structure:
##STR00008##
[0058] (e) n is 1; [0059] X.sub.1 is C.dbd.O; [0060] R.sub.1,
R.sub.2, and R.sub.7 are each methyl; [0061] R.sub.3 and R.sub.5
are each hydrogen; [0062] R.sub.4 and R.sub.6 are each i-propyl;
and [0063] --R--X.sub.2-Q together represent the moiety having the
structure:
##STR00009##
[0064] wherein R.sub.x is hydrogen or 2-thiazolyl; and/or
[0065] (f) n is 1; [0066] X.sub.1 is C.dbd.O; [0067] R.sub.1 and
R.sub.2 are each independently hydrogen or C.sub.1-4alkyl; [0068]
R.sub.3 and R.sub.5 are each hydrogen; [0069] R.sub.4 and R.sub.6
are each i-propyl; [0070] R.sub.7 is methyl; and [0071]
--R--X.sub.2-Q together represent a moiety having the
structure:
[0071] ##STR00010## [0072] wherein v is 0, 1 or 2; [0073] R' is
hydrogen or C.sub.1-4alkyl; [0074] R'' is C.sub.1-6alkylamino;
hydroxy; C.sub.3-7cycloalkylamino optionally substituted by phenyl
or benzyl; arylamino; C.sub.1-4alkoxy; benzhydrazino; heterocyclyl
optionally substituted with one to three substituents selected from
the group consisting of benzyl, benzhydryl, alkyl, hydroxy, alkoxy,
alkylcarbamoyloxy, amino, mono- or di-alkylamino, acylamino,
alkoxycarbonylamino, phenyl or halogen; heterocyclylamino;
heterocycloalkylamino with the heterocyclyc group optionally
substituted with one to three substituents selected from the group
consisting of benzyl, benzhydryl, alkyl, hydroxy, alkoxy,
alkylcarbamoyloxy, amino, di-alkylamino, acylamino,
alkoxycarbonylamino or halogen; aralkyloxy or aralkyl both
optionally substituted with one to three substituents selected from
the group consisting of halogen, alkoxycarbonyl, sulfamoyl,
alkylcarbonyloxy, cyano, mono- or di-alkylamino, alkyl, alkoxy,
phenyl, phenoxy, trifluoromethyl, trifluoromethoxy, alkylthio,
hydroxy, alkoxycarbonylamino, heterocyclyl, 1,3-dioxolyl,
1,4-dioxolyl, amino, aminosulfonyl or benzyl; or aralkylamino
having C.sub.1-4alkylene and the aryl group optionally substituted
with one to three substituents selected from the group consisting
of halogen, alkoxyxarbonyl, sulfamoyl, alkylcarbonyloxy,
carbamoyloxy, cyano, mono- or di-alkylamino, alkyl, alkoxy, phenyl,
phenoxy, trifluoromethyl, trifluoromethoxy, alkylthio, hydroxy,
alkoxycarbonylamino, heterocyclyl, 1,3-dioxolyl, 1,4-dioxolyl,
amino or benzyl; and [0075] R''' is hydrogen, alkyl optionally
substituted with one to three substituents selected from the group
consisting of hydroxy, alkoxy, amino, mono- or di-alkylamino,
carboxy, alkoxycarbonyl, carbamoyl, alkylcarbonyloxy, carbamoyloxy
or halogen; alkenyl; alkynyl; C.sub.3-7cycloalkyl; aryl optionally
substituted with one to three substituents selected from the group
consisting of halogen, alkoxyxarbonyl, sulfamoyl, alkylcarbonyloxy,
cyano, mono- or di-alkylamino, alkyl, alkoxy, phenyl, phenoxy,
trifluoromethyl, trifluoromethoxy, alkylthio, hydroxy,
alkoxycarbonylamino, heterocyclyl, 1,3-dioxolyl, 1,4-dioxolyl,
amino or benzyl; aralkyl with the aryl group optionally substituted
with one to three substituents selected from the group consisting
of halogen, alkoxyxarbonyl, carbamoyl, sulfamoyl, alkylcarbonyloxy,
cyano, mono- or di-alkylamino, alkyl, alkoxy, phenyl, phenoxy,
trifluoromethyl, trifluoromethoxy, alkylthio, hydroxy,
alkoxycarbonylamino, heterocyclyl, 1,3-dioxolyl, 1,4-dioxolyl,
amino or benzyl; or heterocyclylalkyl; [0076] wherein the groups
recited in paragraph (f) above are defined as follows: [0077] alkyl
refers to a straight-chain or branched-chain hydrocarbon group
optionally substituted with hydroxy, alkoxy, amino, mono- or
di-alkylamino, acetoxy, alkylcarbonyloxy, alkoxycarbonyl,
carbamoyloxy, carbamoyl or halogen; [0078] alkenyl refers to a
hydrocarbon chain as defined for alkyl above having at least one
double bond; [0079] alkynyl refers to a hydrocarbon chain as
defined for alkyl above having at least one triple bond; [0080]
C.sub.3-7 cycloalkyl refers to a saturated, cyclic hydrocarbon
group with 3-7 carbon atoms optionally substituted with alkyl,
phenyl, amino, hydroxy or halogen; [0081] C.sub.1-4alkylene refers
to a biradical linear or branched hydrocarbon chain containing 1-4
carbon atoms; [0082] Aralkyl, refers to an aryl group attached to
an alkylene group; [0083] Heterocyclyl refers to saturated,
unsaturated or aromatic monovalent cyclic radical having one to
three heteroatoms selected from O, N and S, or combination thereof,
optionally substituted with one or more occurrences of benzyl,
benzhydryl, alkyl, hydroxy, alkoxy, alkylcarbamoyloxy, amino, mono-
or di-alkylamino, acylamino, alkoxycarbonylamino or halogen; [0084]
Amino refers to --NH.sub.2 and includes amino groups which are
further substituted by lower alkyl groups, or nitrogen protecting
groups know in the art; [0085] Cycloalkylamino refers to cycloalkyl
groups as defined above attached to a structure via an amino
radical; [0086] Arylamino is defined as aryl-NH--; [0087]
Aralkylamino is defined as aralkyl-NH--; [0088] Carbamoyl refers to
the group --C(.dbd.O)--NH.sub.2; [0089] Carbamoyloxy refers to the
group --O--C(.dbd.O)--NH--; [0090] Alkylcarbamoyloxy refers to the
group --O--C(.dbd.O)--NH-alkyl; [0091] Alkylcarbonyloxy refers to
the group --O--C(.dbd.O)-alkyl; [0092] Aralkyloxy refers to the
group --O-aralkyl; and [0093] Alkylthio refers to the group
Alkyl-S--.
[0094] In certain other embodiments of compounds described in (a)
above and compounds as described in certain classes and subclasses
herein, the following groups do not occur simultaneously as
defined: [0095] n is 1; X.sub.1 and X.sub.2 are each C(.dbd.O);
R.sub.1 and R.sub.2 are each independently hydrogen, methyl, ethyl,
propyl, n-butyl, acetyl; or R.sub.1 and R.sub.2, taken together,
form a moiety selected from the group consisting of cyclopropyl,
cyclobutyl, cyclopentyl, and cyclohexyl; R.sub.3 is hydrogen;
R.sub.4 is --CR.sub.4aR.sub.4bR.sub.4c wherein R.sub.4a and
R.sub.4b are each independently methyl, ethyl, n-propyl or n-butyl;
or R.sub.4a and R.sub.4b, taken together, form a moiety selected
from the group consisting of .beta.-cyclopropyl, .beta.-cyclobutyl,
.beta.-cyclopentyl, and .beta.-cyclohexyl; and R.sub.4c is phenyl,
naphtyl, anthracyl or pyrrolyl; R.sub.5 and R.sub.7 are each
independently hydrogen or methyl; R.sub.6 is a three to six carbon,
branched alkyl group; and --R--X.sub.2-Q together represent the
moiety having the structure:
##STR00011##
[0096] wherein R' is methyl, ethyl, n-propyl, isopropyl,
tert-butyl, iso-butyl, or sec-butyl; R'' is hydrogen, methyl,
ethyl, propyl, iso-propyl, n-butyl, iso-butyl or sec-butyl; and Q
is OH or OR.sub.G wherein R.sub.G is a linear or branched one to
six carbon alkyl group.
[0097] In certain other embodiments of compounds described in (a)
above and compounds as described in certain classes and subclasses
herein, the following groups do not occur simultaneously as
defined: [0098] n is 1; X.sub.1 and X.sub.2 are each C(.dbd.O);
R.sub.1, R.sub.3 and R.sub.5 are each hydrogen; R.sub.2 is methyl;
R.sub.4 is --CR.sub.4aR.sub.4bR.sub.4c, R.sub.6 is tert-butyl; and
--R--X.sub.2-Q together represent the moiety having the
structure:
[0098] ##STR00012## [0099] wherein R' is isopropyl; R'' is methyl;
and Q is OH; and [0100] (a) R.sub.4a and R.sub.4b are each methyl;
R.sub.4c is methyl or phenyl; and R.sub.7 is hydrogen or methyl;
[0101] (b) R.sub.4a and R.sub.4b are each methyl; R.sub.4c is
hydrogen; and R.sub.7 is methyl; or [0102] (c) R.sub.4a and
R.sub.4b are each hydrogen; R.sub.4c is phenyl; and R.sub.7 is
methyl.
[0103] In certain other embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, do not have
the structure of any one or more of the compounds disclosed on page
8 line 28 through page 25 line 9, page 28 line 1 through page 32
line 9 and page 39 line 16 through page 80 line 20 of WO 03/008378,
which is incorporated herein by reference in its entirety.
[0104] In certain other embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, do not have
the structure of any one or more of the compounds disclosed on page
10 line 24 through page 17 line 18, page 17 line 26 through page 19
line 3, page 19 line 10 through page 20 line 3, page 20 line 17
through page 21 line 9, page 21 lines 14-29, page 22 lines 1-12,
page 22 lines 16-18, page 22 lines 22-27, page 23 line 1 through
page 24 line 21, page 24 line 26 through page 25 line 9, and page
28 line 1 through page 32 line 9 of WO 03/008378.
[0105] In certain other embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, do not have
the structure of any one or more of the compounds disclosed in
Nieman J. et al., "Synthesis and Antitumotic/Cytotoxic Activity of
Hemiasterlin Analogues", Journal of Natural Products, 2003,
66(2):183-199, which is incorporated herein by reference in its
entirety.
[0106] In certain embodiments, compounds of formula (I) and
compounds described in classes and subclasses herein, do not have
any one or more of the following structure:
##STR00013## ##STR00014## ##STR00015## ##STR00016## ##STR00017##
##STR00018##
[0107] In certain other embodiments, compounds of formula (I) are
defined as follows:
[0108] X.sub.1 and X.sub.2 are each independently CHR.sub.AR.sub.B,
SO.sub.2 or C.dbd.O; wherein R.sub.A and R.sub.B are each
independently hydrogen or substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl;
[0109] R.sub.1 and R.sub.2 are each independently hydrogen, or a
linear or branched, cyclic or acyclic, or saturated or unsaturated
lower alkyl, lower heteroalkyl or acyl moiety, or an aryl or
heteroaryl moiety; wherein the alkyl, heteroalkyl, and aryl
moieties may be substituted or unsubstituted; or
[0110] R.sub.1 and R.sub.2, taken together, may form a saturated or
unsaturated, substituted or unsubstituted cyclic ring of 5 to 8
atoms;
[0111] each occurrence of R.sub.3 and R.sub.4 is independently
hydrogen, or a linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl, lower heteroalkyl, lower-alkyl(aryl),
lower-heteroalkyl(aryl) moiety, or an aryl or heteroaryl moiety;
wherein the alkyl, heteroalkyl, -alkyl(aryl), heteroalkyl(aryl),
aryl and heteroaryl moieties may be substituted or unsubstituted;
or
[0112] R.sub.3 and R.sub.4, taken together, may form a saturated or
unsaturated, substituted or unsubstituted cyclic ring of 3 to 8
atoms;
[0113] the carbon atom bearing R.sub.3 and R.sub.4 may be of S
configuration;
[0114] n is 1;
[0115] R.sub.5 is hydrogen or a protecting group; wherein the
protecting group may be a nitrogen protecting group;
[0116] R.sub.6 is hydrogen or substituted or unsubstituted, linear
or branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or heteroalkyl; or a substituted or unsubstituted aryl or
heteroaryl moiety;
[0117] the carbon atom bearing R.sub.6 may be of S
configuration;
[0118] R.sub.7 is hydrogen, or substituted or unsubstituted, linear
or branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or heteroalkyl; or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sub.7 may be absent when NR.sub.7 is linked
to R via a double bond;
[0119] R is a substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated alkyl moiety; or a
heteroaliphatic moiety containing 1-10 carbon atoms, 1 to 4
nitrogen atoms, 0 to 4 oxygen atoms and 0 to 4 sulfur atoms;
whereby the heteroaliphatic moiety may be substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated;
[0120] wherein (i) the alkyl moiety may have the structure:
##STR00019##
[0121] wherein R.sub.8a, R.sub.9a and R.sub.10a are each
independently absent, hydrogen, or substituted or unsubstituted,
linear or branched, cyclic or acyclic, or saturated or unsaturated
lower alkyl or heteroalkyl; or a substituted or unsubstituted aryl
or heteroaryl moiety; wherein any two R.sub.7, R.sub.8a, R.sub.9a
and R.sub.10a groups may form a substituted or unsubstituted,
saturated or unsaturated cyclic alkyl, heteroalkyl, alky(aryl) or
heteroalkyl(aryl) moiety, or an aryl or heteroaryl moiety; and
wherein the carbon atom bearing R.sub.8a may be of S
configuration;
[0122] (ii) the heteroalkyl moiety may have the structure:
##STR00020## [0123] wherein R.sub.8b, R.sub.9b, R.sub.10b and
R.sub.11b are each independently absent, hydrogen, or substituted
or unsubstituted, linear or branched, cyclic or acyclic, or
saturated or unsaturated lower alkyl, heteroalkyl or acyl; or a
substituted or unsubstituted aryl or heteroaryl moiety; wherein any
two R.sub.7, R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b groups may
form a substituted or unsubstituted, saturated or unsaturated
cyclic alkyl, heteroalkyl, alky(aryl) or heteroalkyl(aryl) moiety,
or a substituted or unsubstituted aryl or heteroaryl moiety;
wherein NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, and NR.sub.10b and CR.sub.11b are each
independently linked by a single or double bond as valency permits;
and wherein the carbon atom bearing R.sub.8b may be of S
configuration;
[0124] (iii) or the heteroalkyl moiety may have the structure:
##STR00021## [0125] wherein R.sub.8c, R.sub.9c, R.sub.10c,
R.sub.11c and R.sub.12c are each independently absent, hydrogen, or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl or heteroalkyl; or
a substituted or unsubstituted aryl or heteroaryl moiety; wherein
any two R.sub.7, R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and
R.sub.12 groups may form a substituted or unsubstituted, saturated
or unsaturated cyclic alkyl, heteroalkyl, alky(aryl) or
heteroalkyl(aryl) moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; wherein NR.sub.7 and CR.sub.8c, CR.sub.8c and
CR.sub.9c, CR.sub.9c and CR.sub.10c, CR.sub.10c and CR.sub.11c are
each independently linked by a single or double bond as valency
permits; and wherein the carbon atom bearing R.sub.8c may be of S
configuration; and
[0126] Q is OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', wherein
R.sup.Q' and R.sup.Q'' are each independently hydrogen or a
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl or heteroalkyl
moiety, or a substituted or unsubstituted aryl or heteroaryl
moiety; or wherein R.sup.Q' and R.sup.Q'', taken together, may form
a substituted or unsubstituted, saturated or unsaturated cyclic
alkyl or heteroalkyl moiety or a substituted or unsubstituted aryl
or heteroaryl moiety; and pharmaceutically acceptable derivatives
thereof.
[0127] In certain embodiments, the present invention defines
certain classes of compounds which are of special interest. For
example, one class of compounds of special interest includes those
compounds having the structure of formula (I) in which R is
--CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)-- and the compound has
the structure (Ia):
##STR00022##
[0128] wherein R.sub.1-R.sub.7, X.sub.1, X.sub.2, Q and n are
defined in classes and subclasses herein;
[0129] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and wherein any two
R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups may form a
substituted or unsubstituted, saturated or unsaturated alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety, or an
aryl or heteroaryl moiety.
[0130] Another class of compounds of special interest, herein
referred to as class (Ib), consists of compounds having the
structure of formula (I) in which X.sub.2 is C.dbd.O and R is a
heteroaliphatic moiety containing 1-10 carbon atoms, 1 to 4
nitrogen atoms, 0 to 4 oxygen atoms and 0 to 4 sulfur atoms,
whereby the heteroaliphatic moiety may be substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated.
[0131] Another class of compounds of special interest consists of
compounds having the structure of formula (I) in which X.sub.1 is
C.dbd.O; n is 1; R.sub.1 and R.sub.4, taken together, form a cyclic
heterocyclic or heteroaryl moiety; R.sub.3 is hydrogen or is absent
when the carbon atom bearing R.sub.3 is linked to N or E via a
double bond; and the compound has the structure (Ic):
##STR00023##
[0132] wherein R.sub.2, R.sub.5-R.sub.7, R, X.sub.2 and Q are
defined in classes and subclasses herein;
[0133] each occurrence of G, J, L and M is independently
CHR.sup.iv, CR.sup.ivR.sup.v, O, S, NR.sup.ivR.sup.v, wherein each
occurrence of R.sup.iv and R.sup.v is independently absent,
hydrogen, --C(.dbd.O)R.sup.vi, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety; or
wherein any two adjacent R.sub.2, R.sup.iv, R.sup.v or R.sup.vi
groups, taken together, form a substituted or unsubstituted,
saturated or unsaturated alicyclic or heteroalicyclic moiety
containing 3-6 atoms or an aryl or heteroaryl moiety; wherein each
occurrence of R.sup.vi is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0134] N and G, G and J, J and L, L and M, M and CR.sub.3, and
CR.sub.3 and N are each independently linked by a single or double
bond as valency permits; and g, j, l and m are each independently
0, 1, 2, 3, 4, 5 or 6, wherein the sum of g, j, l and m is 3-6.
[0135] Another class of compounds of special interest consists of
compounds having the structure of formula (I) in which X.sub.1 is
C.dbd.O; n is 1; R.sub.3 and R.sub.4 are each independently an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or, when taken together, form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety; and
the compound has the structure (Id):
##STR00024##
[0136] wherein R.sub.1, R.sub.2, R.sub.5-R.sub.7, R, X.sub.2 and Q
are defined in classes and subclasses herein.
[0137] The following structures illustrate several exemplary types
of compounds of class (Ia). Additional compounds are described in
the Exemplification herein.
##STR00025##
[0138] The following structures illustrate several exemplary types
of compounds of class (Ib). Additional compounds are described in
the Exemplification herein.
##STR00026##
[0139] The following structures illustrate several exemplary types
of compounds of class (Ic). Additional compounds are described in
the Exemplification herein.
##STR00027## ##STR00028##
[0140] The following structures illustrate several exemplary types
of compounds of class (Id). Additional compounds are described in
the Exemplification herein.
##STR00029##
[0141] Other compounds of the invention will be readily apparent to
the reader.
[0142] A number of important subclasses of each of the foregoing
classes deserve separate mention; for example, one important
subclass of class (Ia) includes those compounds having the
structure of formula (Ia) in which X.sub.2 is C.dbd.O; and the
compound has the following structure:
##STR00030##
[0143] wherein R.sub.1-R.sub.7, n and Q are defined in classes and
subclasses herein;
[0144] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety; and
[0145] X.sub.1 is CR.sub.AR.sub.B, SO.sub.2 or C.dbd.O; wherein
R.sub.A and R.sub.B are each independently hydrogen, alkyl,
heteroalkyl, aryl or heteroaryl.
[0146] Another important subclass of class (Ia) includes those
compounds having the structure of formula (Ia) in which X.sub.1 is
C.dbd.O; and the compound has the following structure:
##STR00031##
[0147] wherein R.sub.1-R.sub.7, n and Q are defined in classes and
subclasses herein;
[0148] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety; and
[0149] X.sub.2 is CR.sub.AR.sub.B, SO.sub.2 or C.dbd.O; wherein
R.sub.A and R.sub.B are each independently hydrogen, alkyl,
heteroalkyl, aryl or heteroaryl.
[0150] Another important subclass of class (Ia) includes those
compounds having the structure of formula (Ia) in which X.sub.1 and
X.sub.2 are each C.dbd.O; n is 1; R.sub.3 is hydrogen; R.sub.4 is a
moiety having the structure --CR.sub.4aR.sub.4bR.sub.4c; and the
compound has the following structure:
##STR00032##
[0151] wherein R.sub.1-R.sub.2, R.sub.5-R.sub.7 and Q are defined
in classes and subclasses herein; and
[0152] R.sub.4a and R.sub.4b are each independently hydrogen or
lower alkyl or heteroalkyl, and R.sub.4c is aryl or heteroaryl;
and
[0153] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety.
[0154] Another important subclass of class (Ia) includes those
compounds having the structure of formula (Ia) in which X.sub.1 and
X.sub.2 are each C.dbd.O; Q is an optionally substituted
nitrogen-containing cyclic moiety; and the compound has the
following structure:
##STR00033##
[0155] wherein R.sub.1-R.sub.7 and n are defined in classes and
subclasses herein;
[0156] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety;
[0157] each occurrence of A, B, D or E is independently CHR.sup.i,
CR.sup.iR.sup.ii, O, S, NR.sup.iR.sup.ii, wherein each occurrence
of R.sup.i and R.sup.ii is independently absent, hydrogen,
--C(.dbd.O)R.sup.iii, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; or wherein any two
adjacent R.sup.i, R.sup.ii or R.sup.iii groups, taken together,
form a alicyclic or heteroalicyclic moiety containing 3-6 atoms or
an aryl or heteroaryl moiety; wherein each occurrence of R.sup.iii
is an aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl
or heteroaryl moiety;
[0158] N and A, A and B, B and D, D and E, and E and N are each
independently linked by a single or double bond as valency permits;
and
[0159] a, b, d and e are each independently 0, 1, 2, 3, 4, 5, 6 or
7, wherein the sum of a, b, d and e is 4-7.
[0160] Another important subclass of class (Ia) includes those
compounds having the structure of formula (Ia) in which X.sub.1 and
X.sub.2 are each C.dbd.O; Q is an optionally substituted
nitrogen-containing cyclic moiety; n is 1; R.sub.3 is hydrogen;
R.sub.4 is a moiety having the structure
--CR.sub.4aR.sub.4bR.sub.4c; and the compound has the following
structure:
##STR00034##
[0161] wherein R.sub.1, R.sub.2, R.sub.5-R.sub.7, A, B, D, E, a, b,
d and e are defined in classes and subclasses herein;
[0162] R.sub.4a and R.sub.4b are each independently hydrogen or
lower alkyl or heteroalkyl, and R.sub.4c is a substituted or
unsubstituted aryl or heteroaryl group;
[0163] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety.
[0164] A number of important subclasses of each of the foregoing
subclasses of class (Ia) deserve separate mention; these subclasses
include subclasses of the foregoing subclasses of class (Ia) in
which: [0165] i-a. R.sub.1 and R.sub.2 are independently hydrogen
or substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0166] ii-a. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0167] iii-a. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl; [0168] iv-a. R.sub.1
is hydrogen and R.sub.2 is methyl, ethyl, propyl, butyl, pentyl,
tert-butyl, i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, --CH(CH.sub.3).sub.2C.ident.CH, cyclohexyl,
cyclopentyl, cyclobutyl or cyclopropyl; [0169] v-a. R.sub.1 and
R.sub.2 are each hydrogen; [0170] vi-a. The carbon atom bearing
R.sub.3 and R.sub.4 is of S configuration; [0171] vii-a. R.sub.3 is
hydrogen and R.sub.4 is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl, heteroalkyl or -alkyl(aryl) or substituted or unsubstituted
aryl or heteroaryl; [0172] viii-a. R.sub.3 is hydrogen and R.sub.4
is --CR.sub.4aR.sub.4bR.sub.4c; wherein R.sub.4a and R.sub.4b are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic, saturated or unsaturated lower
alkyl moiety and R.sub.ic is substituted or unsubstituted aryl or
heteroaryl; [0173] ix-a. R.sub.3 is hydrogen and R.sub.4 is
--CR.sub.4aR.sub.4bPh; wherein R.sub.4a and R.sub.4b are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic, saturated or unsaturated lower
alkyl moiety; [0174] x-a. R.sub.4 is a substituted or unsubstituted
3-indole moiety; [0175] xi-a. R.sub.3 is hydrogen; [0176] xii-a.
R.sub.1 and R.sub.4, taken together, form a substituted or
unsubstituted pyrrolidine group; [0177] xiii-a. R.sub.1 and
R.sub.4, taken together, form a substituted or unsubstituted
piperidine group; [0178] xiv-a. R.sub.1 and R.sub.4, taken
together, form a substituted or unsubstituted thiazolidine group;
[0179] xv-a. R.sub.1 and R.sub.4, taken together, form a
substituted or unsubstituted morpholine group; [0180] xvi-a.
R.sub.1 and R.sub.4, taken together, form a substituted or
unsubstituted thiomorpholine group; [0181] xvii-a. R.sub.1 and
R.sub.4, taken together, form a substituted or unsubstituted indole
group; [0182] xviii-a. R.sub.3 and R.sub.4 are each independently
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, heteroalkyl or
-alkyl(aryl) or substituted or unsubstituted aryl or heteroaryl;
[0183] xix-a. R.sub.3 and R.sub.4 are each independently
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, -alkyl(aryl) or
substituted or unsubstituted aryl; [0184] xx-a. R.sub.3 and R.sub.4
are each independently substituted or unsubstituted lower alkyl,
aryl or heteroaryl;
[0185] xxi-a. R.sub.3 and R.sub.4 are each independently methyl,
ethyl, propyl, butyl, pentyl, tert-butyl, i-propyl,
--CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.aR.sup.bR.sup.c; wherein R.sup.a and R.sup.b are
independently hydrogen, substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl and R.sup.c is substituted or unsubstituted aryl or
heteroaryl; [0186] xxii-a. R.sub.3 and R.sub.4 are each
independently methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.bR.sup.cPh; wherein R.sup.a is hydrogen, substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl and R.sup.b And R.sup.c are each
independently substituted or unsubstituted linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0187]
xxiii-a. R.sub.3 and R.sub.4 are each ethyl; [0188] xxiv-a. R.sub.3
is phenyl and R.sub.4 is lower alkyl; [0189] xxv-a. R.sub.3 is
phenyl and R.sub.4 is ethyl; [0190] xxvi-a. R.sub.3 and R.sub.4,
taken together, form a substituted or unsubstituted cycloalkyl
group; [0191] xxvii-a. R.sub.3 and R.sub.4, taken together, form a
cyclohexyl group; [0192] xxviii-a. R.sub.3 and R.sub.4, taken
together, form a substituted or unsubstituted cycloalkyl(aryl)
group; [0193] xxix-a. R.sub.5 is hydrogen; [0194] xxx-a. R.sub.6 is
substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl; [0195] xxxi-a.
R.sub.6 is methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, cyclohexyl, cyclopentyl, cyclobutyl
or cyclopropyl; [0196] xxxii-a. R.sub.6 is tert-butyl; [0197]
xxxiii-a. The R.sub.6-bearing carbon atom is of S configuration;
[0198] xxxiv-a. R.sub.7 is substituted or unsubstituted, linear or
branched, cyclic or acyclic, saturated or unsaturated lower alkyl;
[0199] xxxv-a. R.sub.7 is methyl; [0200] xxxvi-a. R is
--CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--; and [0201] a)
R.sub.8a is substituted or unsubstituted, linear or branched,
cyclic or acyclic, saturated or unsaturated lower alkyl; [0202] b)
R.sub.8a is iso-propyl; [0203] c) The R.sub.8a-bearing carbon atom
is of S configuration; [0204] d) R.sub.9a is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl; [0205] e) R.sub.9a
is hydrogen; [0206] f) R.sub.10a is hydrogen or substituted or
unsubstituted, linear or branched, cyclic or acyclic, saturated or
unsaturated lower alkyl; [0207] g) R.sub.10 is methyl; [0208]
xxxvii-a. n is 1; [0209] xxxviii-a. X.sub.1 is C.dbd.O; [0210]
xxxix-a. X.sub.1 is CH.sub.2; [0211] xl-a. X.sub.1 is SO.sub.2;
[0212] xli-a. X.sub.2 is C.dbd.O; [0213] xlii-a. X.sub.2 is
CH.sub.2; [0214] xliii-a. X.sub.2 is SO.sub.2; [0215] xliv-a. Q is
OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a
moiety selected from the group consisting of:
##STR00035##
[0216] wherein each occurrence of r is 0, 1 or 2; s and t are
independently an integer from 0-8; X is O, S, or NR.sup.K; each
occurrence of R.sup.Q1 and R.sup.Q2 is independently hydrogen,
halogen, --CN, --S(O).sub.hR.sup.J, --NO.sub.2, --COR.sup.J,
--CO.sub.2R.sup.J, --NR.sup.JCOR.sup.J, --NR.sup.JCO.sub.2R.sup.J,
--CONR.sup.JR.sup.J, --CO(NOR.sup.J)R.sup.J, aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
--Z.sub.1R.sup.J; wherein h is 1 or 2; and Z.sub.1 is independently
--O--, --S--, NR.sup.K, --C(O)--, wherein each occurrence of
R.sup.J and R.sup.K is independently hydrogen, COR.sup.L,
COOR.sup.L, CONR.sup.LR.sup.M, --NR.sup.LR.sup.M,
--S(O).sub.2R.sup.L, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, and wherein each
occurrence of R.sup.L and R.sup.M is independently hydrogen, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety; and R.sup.Q' and R.sup.Q'' are independently
hydrogen, or a substituted or unsubstituted, linear or branched,
cyclic or acyclic alkyl or heteroalkyl moiety, or a substituted or
unsubstituted aryl or heteroaryl moiety; or R.sup.Q' and R.sup.Q'',
taken together with the nitrogen atom to which they are attached,
form a substituted or unsubstituted heterocyclic, aryl or
heteroaryl moiety; and [0217] xlv-a. Q is OR.sup.Q', SR.sup.Q',
NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety selected from
the group consisting of:
##STR00036##
[0218] wherein each occurrence of r is 0, 1 or 2; s and t are
independently an integer from 0-8; each occurrence of R.sup.Q1 and
R.sup.Q2 is independently hydrogen, or a substituted or
unsubstituted, linear or branched, cyclic or acyclic alkyl or
heteroalkyl moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sup.Q1 and R.sup.Q2, taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic moiety; and R.sup.Q' and R.sup.Q'' are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic alkyl or heteroalkyl moiety, or a
substituted or unsubstituted aryl or heteroaryl moiety; or R.sup.Q'
and R.sup.Q'', taken together with the nitrogen atom to which they
are attached, form a substituted or unsubstituted heterocyclic,
aryl or heteroaryl moiety; and/or [0219] xliv-a. Q is OR.sup.Q',
SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety
selected from the group consisting of:
##STR00037##
[0220] wherein each occurrence of r is 0, 1 or 2; and R.sup.Q' and
R.sup.Q'' independently hydrogen, or a substituted or
unsubstituted, linear or branched, cyclic or acyclic alkyl or
heteroalkyl moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic, aryl or heteroaryl moiety.
[0221] An important subclass of class (Ib) includes those compounds
having the structure of formula (Ib) in which R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; and the
compound has the following structure:
##STR00038##
[0222] wherein R.sub.1-R.sub.7, n, X.sub.1 and Q are defined in
classes and subclasses herein;
[0223] R.sub.8b, R.sub.9b, R.sub.10b, and R.sub.11b are each
independently absent, hydrogen, --(C.dbd.O)R.sub.L or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, wherein each occurrence of R.sub.L is independently
hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b groups,
taken together, form a alicyclic or heteroalicyclic moiety, or an
aryl or heteroaryl moiety; wherein R.sub.M is an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; and
[0224] NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, NR.sub.10b and CR.sub.11b are each independently
linked by a single or double bond as valency permits.
[0225] Another important subclass of class (Ib) includes those
compounds having the structure of formula (Ib) in which X.sub.1 is
C.dbd.O; R is --C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.1b)--; n
is 1; R.sub.3 is hydrogen; R.sub.4 is a moiety having the structure
--CR.sub.4aR.sub.4bR.sub.4c; and the compound has the following
structure:
##STR00039##
[0226] wherein R.sub.1-R.sub.2, R.sub.5-R.sub.7 and Q are defined
in classes and subclasses herein; and
[0227] R.sub.4a and R.sub.4b are each independently hydrogen or
lower alkyl and R.sub.4c is aryl or heteroaryl;
[0228] R.sub.8b, R.sub.9b, R.sub.10b, and R.sub.11b are each
independently absent, hydrogen, --(C.dbd.O)R.sub.L or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, wherein each occurrence of R.sub.L is independently
hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b groups,
taken together, form a alicyclic or heteroalicyclic moiety, or an
aryl or heteroaryl moiety; wherein R.sub.M is an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; and
[0229] NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, NR.sub.10b and CR.sub.11b are each independently
linked by a single or double bond as valency permits.
[0230] Another important subclass of class (Ib) includes those
compounds having the structure of formula (Ib) in which R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; R.sub.10b and
R.sub.11b, taken together, form a substituted or unsubstituted
cyclic heteroalkyl or heteroaryl moiety; and the compound has the
following structure:
##STR00040##
[0231] wherein R.sub.1-R.sub.7, n and Q are defined in classes and
subclasses herein;
[0232] p is 1, 2, 3 or 4;
[0233] q is 0-12;
[0234] each occurrence of S.sub.1 is independently an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or any two adjacent S.sub.1 moieties, taken together, may
form an alicyclic, heteroalicyclic, aryl or heteroaryl moiety;
[0235] R.sub.8b and R.sub.9b are each independently absent,
hydrogen, --(C.dbd.O)R.sub.L or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety,
wherein each occurrence of R.sub.L is independently hydrogen, OH,
OR.sub.M, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or wherein R.sub.8b and
R.sub.9b, taken together, form a alicyclic or heteroalicyclic
moiety, or an aryl or heteroaryl moiety; wherein R.sub.M is an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety; and
[0236] NR.sub.7 and CR.sub.8, and CR.sub.8b and CR.sub.9b are each
independently linked by a single or double bond as valency
permits.
[0237] Another important subclass of class (Ib) includes those
compounds having the structure of formula (Ib) in which n is 1; R
is --C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; R.sub.10b
and R.sub.11b, taken together, form a substituted or unsubstituted
cyclic heteroalkyl or heteroaryl moiety; R.sub.4 is a moiety having
the structure --CR.sub.4aR.sub.4bR.sub.4c; and the compound has the
following structure:
##STR00041##
[0238] wherein R.sub.1-R.sub.7, X.sub.1 and Q are defined in
classes and subclasses herein;
[0239] p is 1, 2, 3 or 4;
[0240] is 0, 1, 2, 3, 4, 5 or 6;
[0241] each occurrence of S.sub.1 is independently an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or any two adjacent S.sub.1 moieties, taken together, may
form an alicyclic, heteroalicyclic, aryl or heteroaryl moiety;
[0242] R.sub.4a and R.sub.4b are each independently hydrogen or
lower alkyl or heteroalkyl; and R.sub.4c is aryl or heteroaryl;
[0243] R.sub.8b and R.sub.9b are each independently hydrogen,
--(C.dbd.O)R.sub.L or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, wherein each occurrence
of R.sub.L is independently hydrogen, OH, OR.sub.M, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or wherein R.sub.8b and R.sub.9b, taken
together, form a alicyclic or heteroalicyclic moiety, or an aryl or
heteroaryl moiety; wherein R.sub.M is an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
and
[0244] NR.sub.7 and CR.sub.8b, and CR.sub.8b and CR.sub.9b are each
independently linked by a single or double bond as valency
permits.
[0245] Another important subclass of class (Ib) includes those
compounds having the structure of formula (Ib) in which R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)C(R.sub.11c)OC(R.sub.12c)--;
and the compound has the following structure:
##STR00042##
[0246] wherein R.sub.1-R.sub.7, n, X.sub.1 and Q are defined in
classes and subclasses herein;
[0247] R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and R.sub.12c are
each independently absent, hydrogen, --(C.dbd.O)R.sub.L or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.L is
independently hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and
R.sub.12c groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0248] NR.sub.7 and CR.sub.8c, CR.sub.8c and CR.sub.9c, CR.sub.9c
and CR.sub.10c, and CR.sub.10c and CR.sub.11c are each
independently linked by a single or double bond as valency
permits.
[0249] Another important subclass of class (Ib) includes those
compounds having the structure of formula (Ib) in which X.sub.1 is
C.dbd.O; n is 1; R.sub.3 is hydrogen; R.sub.4 is a moiety having
the structure --CR.sub.4aR.sub.4bR.sub.4c; R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)C(R.sub.11c)OC(R.sub.12c)--;
and the compound has the following structure:
##STR00043##
[0250] wherein R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined
in classes and subclasses herein;
[0251] R.sub.4a and R.sub.4b are each independently hydrogen, or
lower alkyl or heteroalkyl; and R.sub.4c is aryl or heteroaryl;
[0252] R.sub.8c, R.sub.9c, R.sub.10, R.sub.11c and R.sub.12c are
each independently absent, hydrogen, --(C.dbd.O)R.sub.L or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.L is
independently hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and
R.sub.12c groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0253] NR.sub.7 and CR.sub.8c, CR.sub.8c and CR.sub.9c, CR.sub.9c
and CR.sub.10c, and CR.sub.10c and CR.sub.11c are each
independently linked by a single or double bond as valency
permits.
[0254] A number of important subclasses of each of the foregoing
subclasses of class (Ib) deserve separate mention; these subclasses
include subclasses of the foregoing subclasses of class (Ib) in
which: [0255] i-b. R.sub.1 and R.sub.2 are independently hydrogen
or substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0256] ii-b. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0257] iii-b. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl; [0258] iv-b. R.sub.1
is hydrogen and R.sub.2 is methyl, ethyl, propyl, butyl, pentyl,
tert-butyl, i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, --CH(CH.sub.3).sub.2C.ident.CH, cyclohexyl,
cyclopentyl, cyclobutyl or cyclopropyl; [0259] v-b. R.sub.1 and
R.sub.2 are each hydrogen; [0260] vi-b. The carbon atom bearing
R.sub.3 and R.sub.4 is of S configuration; [0261] vii-b. R.sub.3 is
hydrogen and R.sub.4 is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl, heteroalkyl or -alkyl(aryl) or substituted or unsubstituted
aryl or heteroaryl; [0262] viii-b. R.sub.3 is hydrogen and R.sub.4
is --CR.sub.4aR.sub.4bR.sub.4c; wherein R.sub.4a and R.sub.4b are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic, saturated or unsaturated lower
alkyl moiety and R.sub.4c is substituted or unsubstituted aryl or
heteroaryl; [0263] ix-b. R.sub.3 is hydrogen and R.sub.4 is
--CR.sub.4aR.sub.4bPh); wherein R.sub.4a and R.sub.4b are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic, saturated or unsaturated lower
alkyl moiety; [0264] x-b. R.sub.4 is a substituted or unsubstituted
3-indole moiety; [0265] xi-b. R.sub.3 is hydrogen; [0266] xii-b.
R.sub.1 and R.sub.4, taken together, form a substituted or
unsubstituted pyrrolidine group; [0267] xiii-b. R.sub.1 and
R.sub.4, taken together, form a substituted or unsubstituted
piperidine group; [0268] xiv-b. R.sub.1 and R.sub.4, taken
together, form a substituted or unsubstituted thiazolidine group;
[0269] xv-b. R.sub.1 and R.sub.4, taken together, form a
substituted or unsubstituted morpholine group; [0270] xvi-b.
R.sub.1 and R.sub.4, taken together, form a substituted or
unsubstituted thiomorpholine group; [0271] xvii-b. R.sub.1 and
R.sub.4, taken together, form a substituted or unsubstituted indole
group; [0272] xviii-b. R.sub.3 and R.sub.4 are each independently
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, heteroalkyl or
-alkyl(aryl) or substituted or unsubstituted aryl or heteroaryl;
[0273] xix-b. R.sub.3 and R.sub.4 are each independently
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, -alkyl(aryl) or
substituted or unsubstituted aryl; [0274] xx-b. R.sub.3 and R.sub.4
are each independently substituted or unsubstituted lower alkyl,
aryl or heteroaryl; [0275] xxi-b. R.sub.3 and R.sub.4 are each
independently methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.aR.sup.bR.sup.c; wherein R.sup.a and R.sup.b are
independently hydrogen, substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl and R.sup.c is substituted or unsubstituted aryl or
heteroaryl; [0276] xxii-b. R.sub.3 and R.sub.4 are each
independently methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.bR.sup.cPh; wherein R.sup.a is hydrogen, substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl and R.sup.b And R.sup.c are each
independently substituted or unsubstituted linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0277]
xxiii-b. R.sub.3 and R.sub.4 are each ethyl; [0278] xxiv-b. R.sub.3
is phenyl and R.sub.4 is lower alkyl; [0279] xxv-b. R.sub.3 is
phenyl and R.sub.4 is ethyl; [0280] xxvi-b. R.sub.3 and R.sub.4,
taken together, form a substituted or unsubstituted cycloalkyl
group; [0281] xxvii-b. R.sub.3 and R.sub.4, taken together, form a
cyclohexyl group; [0282] xxviii-b. R.sub.3 and R.sub.4, taken
together, form a substituted or unsubstituted cycloalkyl(aryl)
group; [0283] xxix-b. R.sub.5 is hydrogen; [0284] xxx-b. R.sub.6 is
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0285] xxxi-b.
R.sub.6 is methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, cyclohexyl, cyclopentyl, cyclobutyl
or cyclopropyl; [0286] xxxii-b. R.sub.6 is tert-butyl; [0287]
xxxiii-b. The R.sub.6-bearing carbon atom is of S configuration;
[0288] xxxiv-b. R.sub.7 is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0289] xxxv-b. R.sub.7 is methyl; [0290] xxxvi-b. R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)CR.sub.11b-- and [0291] a)
R.sub.8b is substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0292]
b) R.sub.8b is iso-propyl; [0293] c) The R.sub.8b-bearing carbon
atom is of S configuration; [0294] d) R.sub.9b is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0295] e)
R.sub.10b is hydrogen, substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or acyl; [0296] f) R.sub.10b is hydrogen, methyl or acetyl;
[0297] g) R.sub.10b and R.sub.11b, taken together, form a
substituted or unsubstituted pyrrolidine ring; or [0298] h)
R.sub.9b and R.sub.11b, taken together, form a substituted or
unsubstituted thiazole ring; [0299] xxxvii-b. R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)CR.sub.11cOCR.sub.12c-- and
[0300] a)R.sub.8c is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0301] b)R.sub.8c is iso-propyl; [0302] c) The
R.sub.8c-bearing carbon atom is of S configuration; [0303] d)
R.sub.9c and R.sub.10c are each independently hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0304] e)
CR.sub.9c and CR.sub.10c are linked via a double bond; [0305] f)
CR.sub.9c and CR.sub.10c are linked via a double bond and R.sub.9c
is hydrogen; or [0306] g) CR.sub.9c and CR.sub.10c are linked via a
double bond and R.sub.10c is methyl; [0307] xxxviii-b. n is 1;
[0308] xxxix-b. X.sub.1 is C.dbd.O; [0309] xl-b. X.sub.1 is
CH.sub.2; [0310] xli-b. X.sub.1 is SO.sub.2; [0311] xlii-b. Q is
OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a
moiety selected from the group consisting of:
[0311] ##STR00044## [0312] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; X is O, S, or
NR.sup.K; each occurrence of R.sup.Q1 and R.sup.Q2 is independently
hydrogen, halogen, --CN, --S(O).sub.hR.sup.J, --NO.sub.2,
--COR.sup.J, --CO.sub.2R.sup.J, --NR.sup.JCOR.sup.J,
--NR.sup.JCO.sub.2R.sup.J, --CONR.sup.JR.sup.J,
--CO(NOR.sup.J)R.sup.J, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or --Z.sub.1R.sup.J;
wherein h is 1 or 2; and Z.sub.1 is independently --O--, --S--,
NR.sup.K, --C(O)--, wherein each occurrence of R.sup.J and R.sup.K
is independently hydrogen, COR.sup.L, COOR.sup.L,
CONR.sup.LR.sup.M, --NR.sup.LR.sup.M, --S(O).sub.2R.sup.L, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, and wherein each occurrence of R.sup.L and
R.sup.M is independently hydrogen, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety; and
R.sup.Q' and R.sup.Q'' are independently hydrogen, or a substituted
or unsubstituted, linear or branched, cyclic or acyclic alkyl or
heteroalkyl moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic, aryl or heteroaryl moiety; [0313]
xliii-b. Q is OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3,
.dbd.N--OH, or a moiety selected from the group consisting of:
[0313] ##STR00045## [0314] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; each occurrence
of R.sup.Q1 and R.sup.Q2 is independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q1 and R.sup.Q2, taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic moiety; and R.sup.Q' and R.sup.Q'' are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic alkyl or heteroalkyl moiety, or a
substituted or unsubstituted aryl or heteroaryl moiety; or R.sup.Q'
and R.sup.Q'', taken together with the nitrogen atom to which they
are attached, form a substituted or unsubstituted heterocyclic,
aryl or heteroaryl moiety; and/or [0315] xliv-b. Q is OR.sup.Q',
SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety
selected from the group consisting of:
[0315] ##STR00046## [0316] wherein each occurrence of r is 0, 1 or
2; and R.sup.Q' and R.sup.Q'' are independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together
with the nitrogen atom to which they are attached, form a
substituted or unsubstituted heterocyclic, aryl or heteroaryl
moiety.
[0317] An important subclass of class (Ic) includes those compounds
having the structure of formula (Ic) in which X.sub.2 is C.dbd.O; R
is --CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--; j is 0; l and m
are each 1; R.sub.3 is hydrogen; G is CR.sub.G1; M is
CR.sub.M1R.sub.M2, and the compound has the structure:
##STR00047##
[0318] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0319] g is 1, 2, 3 or 4;
[0320] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety;
[0321] L is CR.sub.L1R.sub.L2, S, O or NR.sub.L3, wherein each
occurrence of R.sub.L1, R.sub.L2 and R.sub.L3 is independently
hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0322] each occurrence of R.sub.G1, R.sub.M1 and R.sub.M2 is each
independently hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0323] wherein any two adjacent R.sub.L1, R.sub.L2, R.sub.L3,
R.sub.G1, R.sub.M1 or R.sub.M2 groups, taken together, form a
substituted or unsubstituted alicyclic or heteroalicyclic moiety
containing 3-6 atoms or an aryl or heteroaryl moiety.
[0324] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; G, J and M are each CH.sub.2; j, l and m are each 1; R is
--CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--; R.sub.3 is hydrogen;
and the compound has the structure:
##STR00048##
[0325] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0326] g is 0, 1, 2 or 3;
[0327] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an alkyl, heteroalkyl, aryl or heteroaryl moiety; and
wherein any two R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups
may form a cyclic alkyl, heteroalkyl, -alkyl(aryl),
-heteroalykl(aryl), -alkyl(heteroaryl) or -heteroalkyl(heteroaryl)
moiety, or an aryl or heteroaryl moiety;
[0328] R.sub.L1 and R.sub.L2 are independently hydrogen or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety.
[0329] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; R is --C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; j
is 0; l and m are each 1; R.sub.3 is hydrogen; G is CHR.sub.G1, M
is CR.sub.M1R.sub.M2, and the compound has the structure:
##STR00049##
[0330] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0331] g is 1, 2 or 3;
[0332] L is CR.sub.L1R.sub.L2, S, O or NR.sub.L3, wherein each
occurrence of R.sub.L1, R.sub.L2 and R.sub.L3 is independently
hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0333] each occurrence of R.sub.G1, R.sub.M1 and R.sub.M2 is
independently hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0334] any two adjacent R.sub.L1, R.sub.L2, R.sub.L3, R.sub.G1,
R.sub.M1 or R.sub.M2 groups, taken together, may form a substituted
or unsubstituted alicyclic or heteroalicyclic moiety containing 3-6
atoms or an aryl or heteroaryl moiety;
[0335] R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b are each
independently absent, hydrogen, --(C.dbd.O)R.sub.L or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, wherein each occurrence of R.sub.L is independently
hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two adjacent R.sub.8b, R.sub.9b, R.sub.10b and
R.sub.11b groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0336] NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, NR.sub.10b and CR.sub.11b are each independently
linked by a single or double bond as valency permits.
[0337] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; R is --C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; j
is 0; l and m are each 1; R.sub.3 is hydrogen; G is CHR.sub.G1, M
is CR.sub.M1R.sub.M2; R.sub.10b, and R.sub.11b, taken together,
form a cyclic heteroalkyl group; and the compound has the
structure:
##STR00050##
[0338] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0339] p is 1, 2, 3 or 4;
[0340] q is 0-12;
[0341] each occurrence of S.sub.1 is independently an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or any two adjacent S.sub.1 moieties, taken together, may
form an alicyclic, heteroalicyclic, aryl or heteroaryl moiety;
[0342] R.sub.8b and R.sub.9b are each independently absent,
hydrogen, --(C.dbd.O)R.sub.L or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety,
wherein each occurrence of R.sub.L is independently hydrogen, OH,
OR.sub.M, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or wherein R.sub.8b and
R.sub.9b, taken together, form a alicyclic or heteroalicyclic
moiety, or an aryl or heteroaryl moiety; wherein R.sub.M is an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety; and
[0343] NR.sub.7 and CR.sub.8b, and CR.sub.8b and CR.sub.9b are each
independently linked by a single or double bond as valency
permits.
[0344] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; G, J and M are each CH.sub.2; j, l and m are each 1; R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; R.sub.3 is
hydrogen; and the compound has the structure:
##STR00051##
[0345] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0346] g is 0, 1, 2 or 3;
[0347] R.sub.L1 and R.sub.L2 are independently hydrogen or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety;
[0348] R.sub.8b, R.sub.9b, R.sub.10b, and R.sub.11b, are each
independently absent, hydrogen, --(C.dbd.O)R.sub.L or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, wherein each occurrence of R.sub.L is independently
hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two adjacent R.sub.8b, R.sub.9b, R.sub.10b and
R.sub.11b groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0349] NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, NR.sub.10b and CR.sub.11b are each independently
linked by a single or double bond as valency permits.
[0350] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; G, J and M are each CH.sub.2; j, l and m are each 1; R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; R.sub.3 is
hydrogen; R.sub.10b and R.sub.11b, taken together, form a cyclic
heteroalkyl group; and the compound has the structure:
##STR00052##
[0351] wherein R.sub.2, R.sub.5-R.sub.7 and Q are defined in
classes and subclasses herein;
[0352] p is 1, 2, 3 or 4;
[0353] q is 0-12;
[0354] g is 0, 1, 2 or 3;
[0355] R.sub.L1 and R.sub.L2 are independently hydrogen or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety;
[0356] each occurrence of S.sub.1 is independently an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or any two adjacent S.sub.1 moieties, taken together, may
form an alicyclic, heteroalicyclic, aryl or heteroaryl moiety;
[0357] R.sub.8b and R.sub.9b are each independently hydrogen,
--(C.dbd.O)R.sub.L or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, wherein each occurrence
of R.sub.L is independently hydrogen, OH, OR.sub.M, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or wherein R.sub.8b and R.sub.9b, taken
together, form a alicyclic or heteroalicyclic moiety, or an aryl or
heteroaryl moiety; wherein R.sub.M is an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
and
[0358] NR.sub.7 and CR.sub.8b, and CR.sub.8b and CR.sub.9b are each
independently linked by a single or double bond as valency
permits.
[0359] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)C(R.sub.11c)OC(R.sub.12c)--; j
is 0; l and m are each 1; R.sub.3 is hydrogen; G is CHR.sub.G1, M
is CR.sub.M1R.sub.M2; and the compound has the following
structure:
##STR00053##
[0360] wherein R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined
in classes and subclasses herein;
[0361] g is 1, 2 or 3;
[0362] L is CR.sub.L1R.sub.L2, S, O or NR.sub.L3, wherein each
occurrence of R.sub.L1, R.sub.L2 and R.sub.L3 is independently
hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0363] each occurrence of R.sub.G1, R.sub.M1 and R.sub.M2 is
independently hydrogen or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety;
[0364] any two adjacent R.sub.L1, R.sub.L2, R.sub.L3, R.sub.G1,
R.sub.M1 or R.sub.M2 groups, taken together, may form a substituted
or unsubstituted alicyclic or heteroalicyclic moiety containing 3-6
atoms or an aryl or heteroaryl moiety;
[0365] R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and R.sub.12c are
each independently absent, hydrogen, --(C.dbd.O)R.sub.L or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.L is
independently hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and
R.sub.12c groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0366] NR.sub.7 and CR.sub.8c, CR.sub.8c and CR.sub.9c, CR.sub.9c
and CR.sub.10c, and CR.sub.10c and CR.sub.11c are each
independently linked by a single or double bond as valency
permits.
[0367] Another important subclass of class (Ic) includes those
compounds having the structure of formula (Ic) in which X.sub.2 is
C.dbd.O; R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)C(R.sub.11c)OC(R.sub.12c)--; G,
J and M are each CH.sub.2; j, l and m are each 1; R.sub.3 is
hydrogen; and the compound has the following structure:
##STR00054##
[0368] wherein R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined
in classes and subclasses herein;
[0369] g is 0, 1, 2 or 3;
[0370] R.sub.L1 and R.sub.L2 are independently hydrogen or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety;
[0371] R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and R.sub.12c are
each independently absent, hydrogen, --(C.dbd.O)R.sub.L or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.L is
independently hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and
R.sub.12c groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0372] NR.sub.7 and CR.sub.8c, CR.sub.8 and CR.sub.9c, CR.sub.9c
and CR.sub.10c, and CR.sub.10c and CR.sub.11c are each
independently linked by a single or double bond as valency
permits.
[0373] A number of important subclasses of each of the foregoing
subclasses of class (Ic) deserve separate mention; these subclasses
include subclasses of the foregoing subclasses of class (Ic) in
which: [0374] i-c. R.sub.2 is hydrogen, or a substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl, heteroalkyl, -alkyl(aryl) or acyl
moiety; [0375] ii-C. R.sub.2 is substituted or unsubstituted,
linear or branched, cyclic or acyclic, saturated or unsaturated
lower alkyl, heteroalkyl, -alkyl(aryl) or acyl; [0376] iii-C.
R.sub.2 is substituted or unsubstituted, linear or branched, cyclic
or acyclic, saturated or unsaturated lower alkyl; [0377] iv-c.
R.sub.2 is methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, --CH(CH.sub.3).sub.2C.ident.CH, cyclohexyl,
cyclopentyl, cyclobutyl or cyclopropyl; [0378] v-c. R.sub.2 is
hydrogen; [0379] vi-c. R.sub.2 is hydrogen, methyl or benzyl;
[0380] vii-c. R.sub.2 is methyl; [0381] viii-c. R.sub.2 is acyl,
wherein the acyl group is a nitrogen protecting group; [0382] ix-c.
R.sub.3 is hydrogen; [0383] x-c. R.sub.1 and R.sub.4, taken
together, form a substituted or unsubstituted pyrrolidine group;
[0384] xi-c. R.sub.1 and R.sub.4, taken together, form a
substituted or unsubstituted piperidine group; [0385] xii-c.
R.sub.1 and R.sub.4, taken together, form a substituted or
unsubstituted thiazolidine group; [0386] xiii-c. R.sub.1 and
R.sub.4, taken together, form a substituted or unsubstituted
morpholine group; [0387] xiv-c. R.sub.1 and R.sub.4, taken
together, form a substituted or unsubstituted thiomorpholine group;
[0388] xv-c. R.sub.1 and R.sub.4, taken together, form a
substituted or unsubstituted indole group; [0389] xvi-c. R.sub.5 is
hydrogen; [0390] xvii-c. R.sub.6 is substituted or unsubstituted,
linear or branched, cyclic or acyclic, or saturated or unsaturated
lower alkyl; [0391] xviii-c. R.sub.6 is methyl, ethyl, propyl,
butyl, pentyl, tert-butyl, i-propyl,
--CH(CH.sub.3)CH.sub.2CH.sub.3, --CH.sub.2CH(CH.sub.3).sub.2,
cyclohexyl, cyclopentyl, cyclobutyl or cyclopropyl; [0392] xix-c.
R.sub.6 is tert-butyl; [0393] xx-c. The R.sub.6-bearing carbon atom
is of S configuration; [0394] xxi-c. R.sub.7 is substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl; [0395] xxii-c. R.sub.7 is methyl;
[0396] xxiii-c. R is --CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--;
and [0397] a) R.sub.8a is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0398] b) R.sub.8a is iso-propyl; [0399] c) The
R.sub.8a-bearing carbon atom is of S configuration; [0400] d)
R.sub.9a is hydrogen or substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0401] e) R.sub.9a is hydrogen; [0402] f) R.sub.10a is
hydrogen or substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; or
[0403] g) R.sub.10a is methyl; [0404] xxiv-c. R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)CR.sub.11b-- and [0405] a)
R.sub.8b is substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0406]
b) R.sub.8b is iso-propyl; [0407] c) The R.sub.8b-bearing carbon
atom is of S configuration; [0408] d) R.sub.9b is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0409] e)
R.sub.10b is hydrogen, or a substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or acyl moiety; [0410] f) R.sub.10b is hydrogen, methyl or
acetyl; [0411] g) R.sub.10b and R.sub.11b, taken together, form a
substituted or unsubstituted pyrrolidine ring; or [0412] h)
R.sub.9b and R.sub.11b, taken together, form a substituted or
unsubstituted thiazole ring; [0413] xxxv-d. R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)CR.sub.11cOCR.sub.12c-- and
[0414] a)R.sub.8c is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0415] b) R.sub.8c is iso-propyl; [0416] c) The
R.sub.8c-bearing carbon atom is of S configuration; [0417] d)
R.sub.9c and R.sub.10c are each independently hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0418] e)
CR.sub.9c and CR.sub.10c are linked via a double bond; [0419] f)
CR.sub.9c and CR.sub.10c are linked via a double bond and R.sub.9c
is hydrogen; or [0420] g) CR.sub.9c and CR.sub.10c are linked via a
double bond and R.sub.10c is methyl; [0421] xxv-c.
--C(R.sub.3)(R.sub.4)N(R.sub.1)(R.sub.2) together represent the
moiety having the structure:
##STR00055##
[0421] and [0422] a) R.sub.2 is hydrogen, or a substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl, heteroalkyl, -alkyl(aryl) or acyl
moiety; [0423] b) R.sub.2 is methyl, ethyl or propyl; [0424] c)
R.sub.G1 is hydrogen, substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or substituted or unsubstituted phenyl; [0425] d) R.sub.G1 is
hydrogen, methyl or phenyl; [0426] e) R.sub.G1 and the substituents
on L, taken together, form a substituted or unsubstituted phenyl
group; [0427] f) R.sub.M1 and R.sub.M2 are each independently
hydrogen, hydroxyl, a substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl moiety; a substituted or unsubstituted phenyl moiety, or
R.sub.M2 is absent when R.sub.M1 and the substitutents on L, taken
together, form a substituted or unsubstituted aryl or heteroaryl
moiety; [0428] g) g is 1 or 2; or [0429] h) L is CH.sub.2, S or O;
[0430] xxvi-c. --C(R.sub.3)(R.sub.4)N(R.sub.1)(R.sub.2) together
represent the moiety having the structure:
##STR00056##
[0430] and [0431] a) R.sub.2 is hydrogen, or a substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl, heteroalkyl, -alkyl(aryl) or acyl
moiety; [0432] b) R.sub.2 is methyl; [0433] c) R.sub.L1 and
R.sub.L2 are each independently hydrogen, substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl or substituted or unsubstituted phenyl;
[0434] d) R.sub.L1 and R.sub.L2 are each hydrogen; [0435] e)
R.sub.L1 and R.sub.L2 are each substituted or unsubstituted, linear
or branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; or [0436] f) g is 1 or 2; [0437] xxvii-c. X.sub.2 is
C.dbd.O; [0438] xxviii-c. X.sub.2 is CH.sub.2; [0439] xxix-c.
X.sub.2 is SO.sub.2; [0440] xxx-c. Q is OR.sup.Q', SR.sup.Q',
NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety selected from
the group consisting of:
[0440] ##STR00057## [0441] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; X is O, S, or
NR.sup.K; each occurrence of R.sup.Q1 and R.sup.Q2 is independently
hydrogen, halogen, --CN, --S(O).sub.hR.sup.J, --NO.sub.2,
--COR.sup.J, --CO.sub.2R.sup.J, --NR.sup.JCOR.sup.J,
--NR.sup.JCO.sub.2R.sup.J, --CONR.sup.JR.sup.J,
--CO(NOR.sup.J)R.sup.J, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or --Z.sub.1R.sup.J;
wherein h is 1 or 2; and Z.sub.1 is independently --O--, --S--,
NR.sup.K, --C(O)--, wherein each occurrence of R.sup.J and R.sup.K
is independently hydrogen, COR.sup.L, COOR.sup.L,
CONR.sup.LR.sup.M, --NR.sup.LR.sup.M, --S(O).sub.2R.sup.L, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, and wherein each occurrence of R.sup.L and
R.sup.M is independently hydrogen, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety; and
R.sup.Q' and R.sup.Q'' are independently hydrogen, or a substituted
or unsubstituted, linear or branched, cyclic or acyclic alkyl or
heteroalkyl moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic, aryl or heteroaryl moiety; [0442]
xxxi-c. Q is OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3,
.dbd.N--OH, or a moiety selected from the group consisting of:
[0442] ##STR00058## [0443] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; each occurrence
of R.sup.Q1 and R.sup.Q2 is independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q1 and R.sup.Q2, taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic moiety; and R.sup.Q' and R.sup.Q'' are
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic alkyl or heteroalkyl moiety, or a
substituted or unsubstituted aryl or heteroaryl moiety; or R.sup.Q'
and R.sup.Q'', taken together with the nitrogen atom to which they
are attached, form a substituted or unsubstituted heterocyclic,
aryl or heteroaryl moiety; and/or [0444] xxxii-c. Q is OR.sup.Q',
SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety
selected from the group consisting of:
[0444] ##STR00059## [0445] wherein each occurrence of r is 0, 1 or
2; and R.sup.Q' and R.sup.Q'' are independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together
with the nitrogen atom to which they are attached, form a
substituted or unsubstituted heterocyclic, aryl or heteroaryl
moiety.
[0446] An important subclass of class (Id) includes those compounds
having the structure of formula (Id) in which R is
--CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--; X.sub.2 is C.dbd.O;
and the compound has the following structure:
##STR00060##
[0447] wherein R.sub.3 and R.sub.4 are each independently an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or, when taken together, form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety;
R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined in classes and
subclasses herein; and
[0448] R.sub.8a, R.sub.9a and R.sub.10a are each independently
hydrogen, or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and wherein any two
R.sub.7, R.sub.8a, R.sub.9a and R.sub.10a groups may form an
alicyclic, heteroalicyclic, alicyclicc(aryl),
heteroalicyclic(aryl), alicyclic(heteroaryl) or
heteroalicyclic(heteroaryl) moiety, or an aryl or heteroaryl
moiety.
[0449] Another important subclass of class (Id) includes those
compounds having the structure of formula (Id) in which R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; X.sub.2 is
C.dbd.O; and the compound has the following structure:
##STR00061##
[0450] wherein R.sub.3 and R.sub.4 are each independently an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or, when taken together, form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety;
R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined in classes and
subclasses herein;
[0451] R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b, are each
independently absent, hydrogen, --(C.dbd.O)R.sub.L or an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, wherein each occurrence of R.sub.L is independently
hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8b, R.sub.9b, R.sub.10b and R.sub.11b groups,
taken together, form a alicyclic or heteroalicyclic moiety, or an
aryl or heteroaryl moiety; wherein R.sub.M is an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety; and
[0452] NR.sub.7 and CR.sub.8b, CR.sub.8b and CR.sub.9b, CR.sub.9b
and NR.sub.10b, NR.sub.10b and CR.sub.11b are independently linked
by a single or double bond as valency permits.
[0453] Another important subclass of class (Id) includes those
compounds having the structure of formula (Id) in which R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)C(R.sub.11b)--; X.sub.2 is
C.dbd.O; R.sub.10b and R.sub.11b, taken together, form a cyclic
heteroalkyl group; and the compound has the following
structure:
##STR00062##
[0454] wherein R.sub.3 and R.sub.4 are each independently an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or, when taken together, form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety;
R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined in classes and
subclasses herein;
[0455] p is 1, 2, 3 or 4;
[0456] q is 0-12;
[0457] each occurrence of S.sub.1 is independently an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl or heteroaryl
moiety, or any two adjacent S.sub.1 moieties, taken together, may
form an alicyclic, heteroalicyclic, aryl or heteroaryl moiety;
[0458] R.sub.8b and R.sub.9b are each independently hydrogen,
--(C.dbd.O)R.sub.L or an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, wherein each occurrence
of R.sub.L is independently hydrogen, OH, OR.sub.M, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or wherein R.sub.8b and R.sub.9b, taken
together, form a alicyclic or heteroalicyclic moiety, or an aryl or
heteroaryl moiety; wherein R.sub.M is an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety;
and
[0459] NR.sub.7 and CR.sub.8, and CR.sub.8b and CR.sub.9b are
independently linked by a single or double bond as valency
permits.
[0460] Another important subclass of class (Id) includes those
compounds having the structure of formula (Id) in which X.sub.2 is
C.dbd.O; R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)C(R.sub.11c)OC(R.sub.12c)--;
and the compound has the following structure:
##STR00063##
[0461] wherein R.sub.3 and R.sub.4 are each independently an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, or, when taken together, form an alicyclic,
heteroalicyclic, alicyclic(aryl), heteroalicyclic(aryl),
alicyclic(heteroaryl) or heteroalicyclic(heteroaryl) moiety;
R.sub.1, R.sub.2, R.sub.5-R.sub.7 and Q are defined in classes and
subclasses herein;
[0462] R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11c and R.sub.12c are
each independently absent, hydrogen, --(C.dbd.O)R.sub.L or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, wherein each occurrence of R.sub.L is
independently hydrogen, OH, OR.sub.M, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety, or
wherein any two R.sub.8c, R.sub.9c, R.sub.10c, R.sub.11 and
R.sub.12c groups, taken together, form a alicyclic or
heteroalicyclic moiety, or an aryl or heteroaryl moiety; wherein
R.sub.M is an aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety; and
[0463] NR.sub.7 and CR.sub.8c, CR.sub.8 and CR.sub.9c, CR.sub.9c
and CR.sub.10c, and CR.sub.10c and CR.sub.11c are each
independently linked by a single or double bond as valency
permits.
[0464] A number of important subclasses of each of the foregoing
subclasses of class (Id) deserve separate mention; these subclasses
include subclasses of the foregoing subclasses of class (Id) in
which: [0465] i-d. R.sub.1 and R.sub.2 are independently hydrogen
or substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0466] ii-d. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl, heteroalkyl,
-alkyl(aryl) or acyl; [0467] iii-d. R.sub.1 is hydrogen and R.sub.2
is substituted or unsubstituted, linear or branched, cyclic or
acyclic, saturated or unsaturated lower alkyl; [0468] iv-d. R.sub.1
is hydrogen and R.sub.2 is methyl, ethyl, propyl, butyl, pentyl,
tert-butyl, i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, --CH(CH.sub.3).sub.2C.ident.CH, cyclohexyl,
cyclopentyl, cyclobutyl or cyclopropyl; [0469] v-d. R.sub.1 and
R.sub.2 are each hydrogen; [0470] vi-d. R.sub.1 and R.sub.2 are
independently hydrogen or methyl; [0471] vii-d. R.sub.1 and R.sub.2
are each methyl; [0472] viii-d. R.sub.3 and R.sub.4 are each
independently substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl,
heteroalkyl or -alkyl(aryl) or substituted or unsubstituted aryl or
heteroaryl; [0473] ix-d. R.sub.3 and R.sub.4 are each independently
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl, -alkyl(aryl) or
substituted or unsubstituted aryl; [0474] x-d. R.sub.3 and R.sub.4
are each independently substituted or unsubstituted lower alkyl,
aryl or heteroaryl; [0475] xi-d. R.sub.3 and R.sub.4 are each
independently methyl, ethyl, propyl, butyl, pentyl, ten-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.aR.sup.bR.sup.c; wherein R.sup.a and R.sup.b are
independently hydrogen, substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl and R.sup.c is substituted or unsubstituted aryl or
heteroaryl; [0476] xii-d. R.sub.3 and R.sub.4 are each
independently methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH(CH.sub.3)CH.sub.2CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, --CH(CH.sub.3)CH(CH.sub.3).sub.2,
--CH(CH.sub.3).sub.2CH.sub.2CH.sub.3, --CH(CH.sub.3)cyclobutyl,
--CH(Et).sub.2, cyclohexyl, cyclopentyl, cyclobutyl, cyclopropyl,
phenyl, --C.sub.1-6alkylOR.sup.a, --C.sub.1-6alkylSR.sup.a or
--CR.sup.bR.sup.cPh; wherein R.sup.a is hydrogen, substituted or
unsubstituted, linear or branched, cyclic or acyclic, or saturated
or unsaturated lower alkyl and R.sup.b And R.sup.c are each
independently substituted or unsubstituted linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0477]
xiii-d. R.sub.3 and R.sub.4 are each ethyl; [0478] xiv-d. R.sub.3
is phenyl and R.sub.4 is lower alkyl; [0479] xv-d. R.sub.3 is
phenyl and R.sub.4 is ethyl; [0480] xvi-d. R.sub.3 and R.sub.4,
taken together, form a substituted or unsubstituted cycloalkyl
group; [0481] xvii-d. R.sub.3 and R.sub.4, taken together, form a
cyclohexyl group; [0482] xviii-d. R.sub.3 and R.sub.4, taken
together, form a substituted or unsubstituted cycloalkyl(aryl)
group; [0483] xix-d. R.sub.5 is hydrogen; [0484] xx-d. R.sub.6 is
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0485] xxi-d.
R.sub.6 is methyl, ethyl, propyl, butyl, pentyl, tert-butyl,
i-propyl, --CH(CH.sub.3)CH.sub.2CH.sub.3,
--CH.sub.2CH(CH.sub.3).sub.2, cyclohexyl, cyclopentyl, cyclobutyl
or cyclopropyl; [0486] xxii-d. R.sub.6 is tert-butyl; [0487]
xxiii-d. The R.sub.6-bearing carbon atom is of S configuration;
[0488] xxiv-d. R.sub.7 is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0489] xxv-d. R.sub.7 is methyl; [0490] xxvi-d. R is
--CH(R.sub.8a)C(R.sub.9a).dbd.C(R.sub.10a)--; and [0491] i)
R.sub.8a is substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0492]
j) R.sub.8a is iso-propyl; [0493] k) The R.sub.8a-bearing carbon
atom is of S configuration; [0494] l) R.sub.9a is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0495] m)
R.sub.9a is hydrogen; [0496] n) R.sub.10a is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; or [0497] o)
R.sub.10a is methyl; [0498] xxvii-d. R is
--C(R.sub.8b)C(R.sub.9b)N(R.sub.10b)CR.sub.11b-- and [0499] p)
R.sub.8b is substituted or unsubstituted, linear or branched,
cyclic or acyclic, or saturated or unsaturated lower alkyl; [0500]
q) R.sub.8b is iso-propyl; [0501] r) The R.sub.8b-bearing carbon
atom is of S configuration; [0502] s) R.sub.9b is hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0503] t)
R.sub.10b, is hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl or acyl moiety; [0504] u) R.sub.10b is hydrogen, methyl or
acetyl; [0505] v) R.sub.10b and R.sub.11b, taken together, form a
substituted or unsubstituted pyrrolidine ring; or [0506] w)
R.sub.9b and R.sub.11b, taken together, form a substituted or
unsubstituted thiazole ring; [0507] xxviii-d. R is
--C(R.sub.8c)C(R.sub.9c)C(R.sub.10c)CR.sub.11cOCR.sub.12c-- and
[0508] h) R.sub.8c is substituted or unsubstituted, linear or
branched, cyclic or acyclic, or saturated or unsaturated lower
alkyl; [0509] i) R.sub.8c is iso-propyl; [0510] j) The
R.sub.8c-bearing carbon atom is of S configuration; [0511] k)
R.sub.9c and R.sub.10c are each independently hydrogen or
substituted or unsubstituted, linear or branched, cyclic or
acyclic, or saturated or unsaturated lower alkyl; [0512] l)
CR.sub.9c and CR.sub.10c are linked via a double bond; [0513] m)
CR.sub.9c and CR.sub.10c are linked via a double bond and R.sub.9c
is hydrogen; or [0514] n) CR.sub.9c and CR.sub.10c are linked via a
double bond and R.sub.10c is methyl; [0515] xxix-d. X.sub.2 is
C.dbd.O; [0516] xxx-d. X.sub.2 is CH.sub.2; [0517] xxxi-d. X.sub.2
is SO.sub.2; [0518] xxxii-d. Q is OR.sup.Q', SR.sup.Q',
NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, or a moiety selected from
the group consisting of:
[0518] ##STR00064## [0519] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; X is O, S, or
NR.sup.K; each occurrence of R.sup.Q1 and R.sup.Q2 is independently
hydrogen, halogen, --CN, --S(O).sub.hR.sup.J, --NO.sub.2,
--COR.sup.J, --CO.sub.2R.sup.J, --NR.sup.JCOR.sup.J,
--NR.sup.JCO.sub.2R.sup.J, --CONR.sup.JR.sup.J,
--CO(NOR.sup.J)R.sup.J, aliphatic, alicyclic, heteroaliphatic,
heteroalicyclic, aryl or heteroaryl moiety, or --Z.sub.1R.sup.J;
wherein h is 1 or 2; and Z.sub.1 is independently --O--, --S--,
NR.sup.K, --C(O)--, wherein each occurrence of R.sup.J and R.sup.K
is independently hydrogen, COR.sup.L, COOR.sup.L,
CONR.sup.LR.sup.M, --NR.sup.LR.sup.M, --S(O).sub.2R.sup.L, or an
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl or
heteroaryl moiety, and wherein each occurrence of R.sup.L and
R.sup.M is independently hydrogen, or an aliphatic, alicyclic,
heteroaliphatic, heteroalicyclic, aryl or heteroaryl moiety; and
R.sup.Q' and R.sup.Q'' are independently hydrogen, or a substituted
or unsubstituted, linear or branched, cyclic or acyclic alkyl or
heteroalkyl moiety, or a substituted or unsubstituted aryl or
heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic, aryl or heteroaryl moiety; [0520]
xxxiii-d. Q is OR.sup.Q', SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3,
.dbd.N--OH, or a moiety selected from the group consisting of:
[0520] ##STR00065## [0521] wherein each occurrence of r is 0, 1 or
2; s and t are independently an integer from 0-8; each occurrence
of R.sup.Q1 and R.sup.Q2 is independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q1 and R.sup.Q2, taken together with
the nitrogen atom to which they are attached, form a substituted or
unsubstituted heterocyclic moiety; and R.sup.Q' and R.sup.Q''
independently hydrogen, or a substituted or unsubstituted, linear
or branched, cyclic or acyclic alkyl or heteroalkyl moiety, or a
substituted or unsubstituted aryl or heteroaryl moiety; or R.sup.Q'
and R.sup.Q'', taken together with the nitrogen atom to which they
are attached, form a substituted or unsubstituted heterocyclic,
aryl or heteroaryl moiety; and/or [0522] xxxiv-d. Q is OR.sup.Q',
SR.sup.Q', NR.sup.Q'R.sup.Q'', N.sub.3, .dbd.N--OH, .dbd.N--OH, or
a moiety selected from the group consisting of:
[0522] ##STR00066## [0523] wherein each occurrence of r is 0, 1 or
2; and R.sup.Q' and R.sup.Q'' are independently hydrogen, or a
substituted or unsubstituted, linear or branched, cyclic or acyclic
alkyl or heteroalkyl moiety, or a substituted or unsubstituted aryl
or heteroaryl moiety; or R.sup.Q' and R.sup.Q'', taken together
with the nitrogen atom to which they are attached, form a
substituted or unsubstituted heterocyclic, aryl or heteroaryl
moiety.
[0524] As the reader will appreciate, compounds of particular
interest include, among others, those which share the attributes of
one or more of the foregoing subclasses. Some of those subclasses
are illustrated by the following sorts of compounds:
[0525] I) Compounds of the Formula (and Pharmaceutically Acceptable
Derivatives Thereof):
##STR00067##
[0526] wherein R.sub.1-R.sub.2, R.sub.4a, R.sub.4b,
R.sub.9a-R.sub.10a and Q are as defined above and in subclasses
herein; and Ar is a substituted or unsubstituted aryl or heteroaryl
moiety.
[0527] II) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00068##
[0528] wherein A, B, D, E, a, b, d, e, R.sub.1-R.sub.2, R.sub.4a,
R.sub.4b, and R.sub.9a-R.sub.10a are as defined above and in
subclasses herein; and Ar is a substituted or unsubstituted aryl or
heteroaryl moiety.
[0529] It will also be appreciated that for each of the subgroups
I-II described above, a variety of other subclasses are of special
interest, including, but not limited to those classes i-a. through
xliv-a. described above and classes, subclasses and species of
compounds described above and in the examples herein.
[0530] III) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00069##
[0531] wherein R.sub.1-R.sub.2, R.sub.4a, R.sub.4b,
R.sub.9b-R.sub.11b and R.sub.G are as defined above and in
subclasses herein; and Ar is a substituted or unsubstituted aryl or
heteroaryl moiety.
[0532] IV) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00070##
[0533] wherein A, B, D, E, a, b, d, e, R.sub.1-R.sub.2, R.sub.4a,
R.sub.4b, and R.sub.9b-R.sub.11b are as defined above and in
subclasses herein; and Ar is a substituted or unsubstituted aryl or
heteroaryl moiety.
[0534] V) Compounds of the Formula (and Pharmaceutically Acceptable
Derivatives Thereof):
##STR00071##
[0535] wherein R.sub.1-R.sub.2, R.sub.4a, R.sub.4b,
R.sub.9c-R.sub.12c and R.sub.G are as defined above and in
subclasses herein; and Ar is a substituted or unsubstituted aryl or
heteroaryl moiety.
[0536] It will also be appreciated that for each of the subgroups
III-V described above, a variety of other subclasses are of special
interest, including, but not limited to those classes i-b. through
xlii-b. described above and classes, subclasses and species of
compounds described above and in the examples herein.
[0537] VI) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00072##
[0538] wherein L, R.sub.9a-R.sub.10a, R.sub.G1, R.sub.M1 and
R.sub.M2 are as defined above and in subclasses herein; g is 1 or
2; Q is OR.sup.Q', wherein R.sup.Q' is hydrogen or lower alkyl; and
R.sub.2 and R.sub.6 are independently substituted or unsubstituted
linear or branched lower alkyl.
[0539] VII) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00073##
[0540] wherein g, R.sub.9a-R.sub.10a, R.sub.L1 and R.sub.L2 are as
defined above and in subclasses herein; X.sub.1 is CH.sub.2 or
C.dbd.O; R.sub.2 and R.sub.6 are independently substituted or
unsubstituted linear or branched lower alkyl; and Q is OR.sup.Q' or
NR.sup.Q'R.sup.Q'' wherein R.sup.Q' is hydrogen or lower alkyl, or
R.sup.Q' and R.sup.Q'', taken together with the nitrogen atom to
which they are attached, form a substituted or unsubstituted
heterocyclic moiety, whereby each of the foregoing alkyl moieties
may be substituted or unsubstituted, linear or branched, cyclic or
acyclic.
[0541] VIII) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00074##
[0542] wherein A, B, D, E, L, a, b, d, e, p, R.sub.9b, R.sub.G1,
R.sub.M1 and R.sub.M2 are as defined above and in subclasses
herein; g is 1 or 2; and R.sub.2 and R.sub.6 are independently
substituted or unsubstituted linear or branched lower alkyl.
[0543] IX) Compounds of the Formula (and Pharmaceutically
Acceptable Derivatives Thereof):
##STR00075##
[0544] wherein p, R.sub.9b, R.sub.L1, R.sub.L2, R.sup.Q' and
R.sup.Q'' as defined above and in subclasses herein; and R.sub.2
and R.sub.6 are independently substituted or unsubstituted linear
or branched lower alkyl.
[0545] It will also be appreciated that for each of the subgroups
VI-IX described above, a variety of other subclasses are of special
interest, including, but not limited to those classes i-c. through
xxxii-c. described above and classes, subclasses and species of
compounds described above and in the examples herein. In certain
embodiments, for compounds of subgroups VI-IX above, R.sub.2 is
methyl, iso-propyl, sec-butyl or --CH(CH.sub.3)CH(CH.sub.3).sub.2.
In certain embodiments, for compounds of subgroups VI-IX above,
R.sub.6 is tert-butyl or iso-propyl. In certain embodiments, for
compounds of subgroups VI-IX above, R.sub.2 is methyl, iso-propyl,
sec-butyl or --CH(CH.sub.3)CH(CH.sub.3).sub.2, and R.sub.6 is
tert-butyl or iso-propyl. In certain exemplary embodiments, for
compounds of subgroups VI-IX above, R.sub.2 is methyl and R.sub.6
is tert-butyl. In certain exemplary embodiments, for compounds of
subgroups VI-IX above, R.sub.2 is iso-propyl and R.sub.6 is
tert-butyl. In certain exemplary embodiments, for compounds of
subgroups VI-IX above, R.sub.2 is sec-butyl and R.sub.6 is
tert-butyl or iso-propyl. In certain exemplary embodiments, for
compounds of subgroups VI-IX above, R.sub.2 is
--CH(CH.sub.3)CH(CH.sub.3).sub.2, and R.sub.6 is tert-butyl.
[0546] X) Compounds of the Formula (and Pharmaceutically Acceptable
Derivatives Thereof):
##STR00076##
[0547] wherein R.sub.1, R.sub.9a, R.sub.10a and R.sub.G are as
defined above and in subclasses herein; and R.sub.3 and R.sub.4 are
each independently an alkyl, heteroalkyl, heteroalkyl(aryl) or
alkyl(aryl) moiety, or R.sub.3 and R.sub.4, taken together, form a
cyclic alkyl or heteroalkyl moiety.
[0548] It will also be appreciated that for subgroup X described
above, a variety of other subclasses are of special interest,
including, but not limited to those classes i-d. through xxxii-d.
described above and classes, subclasses and species of compounds
described above and in the examples herein.
[0549] Some of the foregoing compounds can comprise one or more
asymmetric centers, and thus can exist in various isomeric forms,
e.g., stereoisomers and/or diastereomers. It is to be understood
that the invention encompasses every possible isomer such as
geometric isomer, optical isomer, stereoisomer and tautomer based
on asymmetric carbon, which can occur in the structures of the
inventive compounds, and mixtures of such isomers, and is not
limited to the specific stereochemistry shown for the compounds
disclosed in the present specification. It will be further
appreciated that the absolute stereochemistry of some of the
compounds recited in the Exemplification herein has not been
determined, and that when a stereochemistry was assigned for those
compounds it is meant to be tentative and to indicate that a set of
diastereomers exists for those compounds and/or that a diastereomer
was isolated in pure form. Thus, inventive compounds and
pharmaceutical compositions thereof may be in the form of an
individual enantiomer, diastereomer or geometric isomer, or may be
in the form of a mixture of stereoisomers. In certain embodiments,
the compounds of the invention are enantiopure compounds. In
certain other embodiments, mixtures of stereoisomers or
diastereomers are provided.
[0550] Furthermore, certain compounds, as described herein may have
one or more double bonds that can exist as either the Z or E
isomer, unless otherwise indicated. The invention additionally
encompasses the compounds as individual isomers substantially free
of other isomers and alternatively, as mixtures of various isomers,
e.g., racemic mixtures of stereoisomers. The invention also
encompasses tautomers of specific compounds as described above. In
addition to the above-mentioned compounds per se, this invention
also encompasses pharmaceutically acceptable derivatives of these
compounds and compositions comprising one or more compounds of the
invention and one or more pharmaceutically acceptable excipients or
additives.
[0551] Compounds of the invention may be prepared by
crystallization of compound of formula (I) under different
conditions and may exist as one or a combination of polymorphs of
compound of general formula (I) forming part of this invention. For
example, different polymorphs may be identified and/or prepared
using different solvents, or different mixtures of solvents for
recrystallization; by performing crystallizations at different
temperatures; or by using various modes of cooling, ranging from
very fast to very slow cooling during crystallizations. Polymorphs
may also be obtained by heating or melting the compound followed by
gradual or fast cooling. The presence of polymorphs may be
determined by solid probe NMR spectroscopy, IR spectroscopy,
differential scanning calorimetry, powder X-ray diffractogram
and/or other techniques. Thus, the present invention encompasses
inventive compounds, their derivatives, their tautomeric forms,
their stereoisomers, their polymorphs, their pharmaceutically
acceptable salts their pharmaceutically acceptable solvates and
pharmaceutically acceptable compositions containing them.
[0552] 2) Compounds and Definitions
[0553] As discussed above, this invention provides novel compounds
with a range of biological properties. Compounds of this invention
have biological activities relevant for the treatment of diseases
or other disorders such as proliferative diseases, including, but
not limited to cancer. In certain other embodiments, the inventive
compounds also find use in the prevention of restenosis of blood
vessels subject to traumas such as angioplasty and stenting.
[0554] Compounds of this invention include those specifically set
forth above and described herein, and are illustrated in part by
the various classes, subgenera and species disclosed elsewhere
herein.
[0555] Additionally, the present invention provides
pharmaceutically acceptable derivatives of the inventive compounds,
and methods of treating a subject using these compounds,
pharmaceutical compositions thereof, or either of these in
combination with one or more additional therapeutic agents. The
phrase, "pharmaceutically acceptable derivative", as used herein,
denotes any pharmaceutically acceptable salt, ester, or salt of
such ester, of such compound, or any other adduct or derivative
which, upon administration to a patient, is capable of providing
(directly or indirectly) a compound as otherwise described herein,
or a metabolite or residue thereof. Pharmaceutically acceptable
derivatives thus include among others pro-drugs. A pro-drug is a
derivative of a compound, usually with significantly reduced
pharmacological activity, which contains an additional moiety which
is susceptible to removal in vivo yielding the parent molecule as
the pharmacologically active species. An example of a pro-drug is
an ester which is cleaved in vivo to yield a compound of interest.
Pro-drugs of a variety of compounds, and materials and methods for
derivatizing the parent compounds to create the pro-drugs, are
known and may be adapted to the present invention. Certain
exemplary pharmaceutical compositions and pharmaceutically
acceptable derivatives will be discussed in more detail herein
below.
[0556] Numerous suitable prodrug moieties, and information
concerning their selection, synthesis and use are well known in the
art. Examples of prodrug moieties of interest include, among
others, prodrug moieties that can be attached to primary or
secondary amine-containing functionalities. Examples of such
prodrug moieties include the following:
##STR00077##
For the synthesis of the prodrug groups, see Borchardt, R. T. et.
al., J. Org. Chem. 1997 43, 3641-3652.
##STR00078##
For the synthesis of the prodrug groups, see Zhou, X-X. et. al.,
PCT WO 99/51613.
##STR00079##
For the synthesis of the prodrug groups, see Ezra, A. et. al., J.
Med. Chem. 2000, 43, 3641-3652.
[0557] Other examples of prodrug moieties of interest include
prodrug moieties that can be attached to hydroxyl-containing
functionalities. Such prodrug moieties a well-known in the art, and
will be readily identified by a person skilled in the relevant art.
The present invention encompasses any prodrug form of the compounds
described herein.
[0558] Certain compounds of the present invention, and definitions
of specific functional groups are also described in more detail
below. For purposes of this invention, the chemical elements are
identified in accordance with the Periodic Table of the Elements,
CAS version, Handbook of Chemistry and Physics, 75.sup.th Ed.,
inside cover, and specific functional groups are generally defined
as described therein. Additionally, general principles of organic
chemistry, as well as specific functional moieties and reactivity,
are described in "Organic Chemistry", Thomas Sorrell, University
Science Books, Sausalito: 1999, the entire contents of which are
incorporated herein by reference. Furthermore, it will be
appreciated by one of ordinary skill in the art that the synthetic
methods, as described herein, utilize a variety of protecting
groups. By the term "protecting group", as used herein, it is meant
that a particular functional moiety, e.g., O, S, or N, is
temporarily blocked so that a reaction can be carried out
selectively at another reactive site in a multifunctional compound.
In preferred embodiments, a protecting group reacts selectively in
good yield to give a protected substrate that is stable to the
projected reactions; the protecting group must be selectively
removed in good yield by readily available, preferably nontoxic
reagents that do not attack the other functional groups; the
protecting group forms an easily separable derivative (more
preferably without the generation of new stereogenic centers); and
the protecting group has a minimum of additional functionality to
avoid further sites of reaction. As detailed herein, oxygen,
sulfur, nitrogen and carbon protecting groups may be utilized. For
example, in certain embodiments, as detailed herein, certain
exemplary oxygen protecting groups are utilized. These oxygen
protecting groups include, but are not limited to methyl ethers,
substituted methyl ethers (e.g., MOM (methoxymethyl ether), MTM
(methylthiomethyl ether), BOM (benzyloxymethyl ether), PMBM
(p-methoxybenzyloxymethyl ether), to name a few), substituted ethyl
ethers, substituted benzyl ethers, silyl ethers (e.g., TMS
(trimethylsilyl ether), TES (triethylsilylether), TIPS
(triisopropylsilyl ether), TBDMS (t-butyldimethylsilyl ether),
tribenzyl silyl ether, TBDPS (t-butyldiphenyl silyl ether), to name
a few), esters (e.g., formate, acetate, benzoate (Bz),
trifluoroacetate, dichloroacetate, to name a few), carbonates,
cyclic acetals and ketals. In certain other exemplary embodiments,
nitrogen protecting groups are utilized. These nitrogen protecting
groups include, but are not limited to, carbamates (including
methyl, ethyl and substituted ethyl carbamates (e.g., Troc), to
name a few) amides, cyclic imide derivatives, N-Alkyl and N-Aryl
amines, imine derivatives, and enamine derivatives, to name a few.
Certain other exemplary protecting groups are detailed herein,
however, it will be appreciated that the present invention is not
intended to be limited to these protecting groups; rather, a
variety of additional equivalent protecting groups can be readily
identified using the above criteria and utilized in the present
invention. Additionally, a variety of protecting groups are
described in "Protective Groups in Organic Synthesis" Third Ed.
Greene, T. W. and Wuts, P. G., Eds., John Wiley & Sons, New
York: 1999, the entire contents of which are hereby incorporated by
reference.
[0559] It will be appreciated that the compounds, as described
herein, may be substituted with any number of substituents or
functional moieties. In general, the term "substituted" whether
preceded by the term "optionally" or not, and substituents
contained in formulas of this invention, refer to the replacement
of hydrogen radicals in a given structure with the radical of a
specified substituent. When more than one position in any given
structure may be substituted with more than one substituent
selected from a specified group, the substituent may be either the
same or different at every position. As used herein, the term
"substituted" is contemplated to include all permissible
substituents of organic compounds. In a broad aspect, the
permissible substituents include acyclic and cyclic, branched and
unbranched, carbocyclic and heterocyclic, aromatic and nonaromatic
substituents of organic compounds. For purposes of this invention,
heteroatoms such as nitrogen may have hydrogen substituents and/or
any permissible substituents of organic compounds described herein
which satisfy the valencies of the heteroatoms. Furthermore, this
invention is not intended to be limited in any manner by the
permissible substituents of organic compounds. Combinations of
substituents and variables envisioned by this invention are
preferably those that result in the formation of stable compounds
useful in the treatment, for example of cancer. The term "stable",
as used herein, preferably refers to compounds which possess
stability sufficient to allow manufacture and which maintain the
integrity of the compound for a sufficient period of time to be
detected and preferably for a sufficient period of time to be
useful for the purposes detailed herein.
[0560] The term "aliphatic", as used herein, includes both
saturated and unsaturated, straight chain (i.e., unbranched) or
branched aliphatic hydrocarbons, which are optionally substituted
with one or more functional groups. As will be appreciated by one
of ordinary skill in the art, "aliphatic" is intended herein to
include, but is not limited to, alkyl, alkenyl, alkynyl moieties.
Thus, as used herein, the term "alkyl" includes straight and
branched alkyl groups. An analogous convention applies to other
generic terms such as "alkenyl", "alkynyl" and the like.
Furthermore, as used herein, the terms "alkyl", "alkenyl",
"alkynyl" and the like encompass both substituted and unsubstituted
groups. In certain embodiments, as used herein, "lower alkyl" is
used to indicate those alkyl groups (cyclic, acyclic, substituted,
unsubstituted, branched or unbranched) having 1-6 carbon atoms.
[0561] In certain embodiments, the alkyl, alkenyl and alkynyl
groups employed in the invention contain 1-20 aliphatic carbon
atoms. In certain other embodiments, the alkyl, alkenyl, and
alkynyl groups employed in the invention contain 1-10 aliphatic
carbon atoms. In yet other embodiments, the alkyl, alkenyl, and
alkynyl groups employed in the invention contain 1-8 aliphatic
carbon atoms. In still other embodiments, the alkyl, alkenyl, and
alkynyl groups employed in the invention contain 1-6 aliphatic
carbon atoms. In yet other embodiments, the alkyl, alkenyl, and
alkynyl groups employed in the invention contain 1-4 carbon atoms.
Illustrative aliphatic groups thus include, but are not limited to,
for example, methyl, ethyl, n-propyl, isopropyl, allyl, n-butyl,
sec-butyl, isobutyl, tert-butyl, n-pentyl, sec-pentyl, isopentyl,
tert-pentyl, n-hexyl, sec-hexyl, moieties and the like, which
again, may bear one or more substituents. Alkenyl groups include,
but are not limited to, for example, ethenyl, propenyl, butenyl,
1-methyl-2-buten-1-yl, and the like. Representative alkynyl groups
include, but are not limited to, ethynyl, 2-propynyl (propargyl),
1-propynyl and the like.
[0562] The term "alicyclic", as used herein, refers to compounds
which combine the properties of aliphatic and cyclic compounds and
include but are not limited to cyclic, or polycyclic aliphatic
hydrocarbons and bridged cycloalkyl compounds, which are optionally
substituted with one or more functional groups. As will be
appreciated by one of ordinary skill in the art, "alicyclic" is
intended herein to include, but is not limited to, cycloalkyl,
cycloalkenyl, and cycloalkynyl moieties, which are optionally
substituted with one or more functional groups. Illustrative
alicyclic groups thus include, but are not limited to, for example,
cyclopropyl, --CH.sub.2-cyclopropyl, cyclobutyl,
--CH.sub.2-cyclobutyl, cyclopentyl, --CH.sub.2-cyclopentyl-n,
cyclohexyl, --CH.sub.2-cyclohexyl, cyclohexenylethyl,
cyclohexanylethyl, norborbyl moieties and the like, which again,
may bear one or more substituents.
[0563] The term "alkoxy" (or "alkyloxy"), or "thioalkyl" as used
herein refers to an alkyl group, as previously defined, attached to
the parent molecular moiety through an oxygen atom or through a
sulfur atom. In certain embodiments, the alkyl group contains 1-20
aliphatic carbon atoms. In certain other embodiments, the alkyl
group contains 1-10 aliphatic carbon atoms. In yet other
embodiments, the alkyl, alkenyl, and alkynyl groups employed in the
invention contain 1-8 aliphatic carbon atoms. In still other
embodiments, the alkyl group contains 1-6 aliphatic carbon atoms.
In yet other embodiments, the alkyl group contains 1-4 aliphatic
carbon atoms. Examples of alkoxy, include but are not limited to,
methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, tert-butoxy,
neopentoxy and n-hexoxy. Examples of thioalkyl include, but are not
limited to, methylthio, ethylthio, propylthio, isopropylthio,
n-butylthio, and the like.
[0564] The term "alkylamino" refers to a group having the structure
--NHR' wherein R' is alkyl, as defined herein. The term
"aminoalkyl" refers to a group having the structure NH.sub.2R'--,
wherein R' is alkyl, as defined herein. In certain embodiments, the
alkyl group contains 1-20 aliphatic carbon atoms. In certain other
embodiments, the alkyl group contains 1-10 aliphatic carbon atoms.
In yet other embodiments, the alkyl, alkenyl, and alkynyl groups
employed in the invention contain 1-8 aliphatic carbon atoms. In
still other embodiments, the alkyl group contains 1-6 aliphatic
carbon atoms. In yet other embodiments, the alkyl group contains
1-4 aliphatic carbon atoms. Examples of alkylamino include, but are
not limited to, methylamino, ethylamino, iso-propylamino and the
like.
[0565] Some examples of substituents of the above-described
aliphatic (and other) moieties of compounds of the invention
include, but are not limited to aliphatic; alicyclic;
heteroaliphatic; heteroalicyclic; aryl; heteroaryl; alkylaryl;
alkylheteroaryl; alkoxy; aryloxy; heteroalkoxy; heteroaryloxy;
alkylthio; arylthio; heteroalkylthio; heteroarylthio; F; Cl; Br; I;
--OH; --NO.sub.2; --CN; --CF.sub.3; --CH.sub.2CF.sub.3;
--CH1.sub.2; --CH.sub.2OH; --CH.sub.2CH.sub.2OH;
--CH.sub.2NH.sub.2; --CH.sub.2SO.sub.2CH.sub.3; --C(O)R.sub.x;
--CO.sub.2(R.sub.x); --CON(R.sub.x).sub.2; --OC(O)R.sub.x;
--OCO.sub.2R.sub.x; --OCON(R.sub.x).sub.2; --N(R.sub.x).sub.2;
--S(O).sub.2R.sub.x; --NR.sub.x(CO)R.sub.x wherein each occurrence
of R.sub.x independently includes, but is not limited to,
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl,
heteroaryl, alkylaryl, or alkylheteroaryl, wherein any of the
aliphatic, alicyclic, heteroaliphatic, heteroalicyclic, aryl,
heteroaryl, alkylaryl, or alkylheteroaryl, substituents described
above and herein may be substituted or unsubstituted, branched or
unbranched, cyclic or acyclic, and wherein any of the aryl or
heteroaryl substituents described above and herein may be
substituted or unsubstituted. Additional examples of generally
applicable substituents are illustrated by the specific embodiments
shown in the Examples that are described herein.
[0566] In general, the terms "aryl" and "heteroaryl", as used
herein, refer to stable mono- or polycyclic, heterocyclic,
polycyclic, and polyheterocyclic unsaturated moieties having
preferably 3-14 carbon atoms, each of which may be substituted or
unsubstituted. It will also be appreciated that aryl and heteroaryl
moieties, as defined herein may be attached via an aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, alkyl or heteroalkyl
moiety and thus also include -(aliphatic)aryl, -(heteroaliphatic)
aryl, -(aliphatic)heteroaryl, -(heteroaliphatic)heteroaryl,
-(alkyl) aryl, -(heteroalkyl)aryl, -(heteroalkyl)aryl, and
-(heteroalkyl)heteroaryl moieties. Thus, as used herein, the
phrases "aryl or heteroaryl" and "aryl, heteroaryl,
-(aliphatic)aryl, -(heteroaliphatic) aryl, -(aliphatic)heteroaryl,
-(heteroaliphatic)heteroaryl, -(alkyl)aryl, -(heteroalkyl)aryl,
-(heteroalkyl)aryl, and -(heteroalkyl)heteroaryl" are
interchangeable. Substituents include, but are not limited to, any
of the previously mentioned substitutents, i.e., the substituents
recited for aliphatic moieties, or for other moieties as disclosed
herein, resulting in the formation of a stable compound. In certain
embodiments of the present invention, "aryl" refers to a mono- or
bicyclic carbocyclic ring system having one or two aromatic rings
including, but not limited to, phenyl, naphthyl,
tetrahydronaphthyl, indanyl, indenyl and the like. In certain
embodiments of the present invention, the term "heteroaryl", as
used herein, refers to a cyclic aromatic radical having from five
to ten ring atoms of which one ring atom is selected from S, O and
N; zero, one or two ring atoms are additional heteroatoms
independently selected from S, O and N; and the remaining ring
atoms are carbon, the radical being joined to the rest of the
molecule via any of the ring atoms, such as, for example, pyridyl,
pyrazinyl, pyrimidinyl, pyrrolyl, pyrazolyl, imidazolyl, thiazolyl,
oxazolyl, isooxazolyl, thiadiazolyl, oxadiazolyl, thiophenyl,
furanyl, quinolinyl, isoquinolinyl, and the like.
[0567] It will be appreciated that aryl and heteroaryl groups
(including bycyclic aryl groups) can be unsubstituted or
substituted, wherein substitution includes replacement of one, two
or three of the hydrogen atoms thereon independently with any one
or more of the following moieties including, but not limited to:
aliphatic; alicyclic; heteroaliphatic; heteroalicyclic; aryl;
heteroaryl; alkylaryl; alkylheteroaryl; alkoxy; aryloxy;
heteroalkoxy; heteroaryloxy; alkylthio; arylthio; heteroalkylthio;
heteroarylthio; F; Cl; Br; I; --OH; --NO.sub.2; --CN; --CF.sub.3;
--CH.sub.2CF.sub.3; --CHCl.sub.2; --CH.sub.2OH;
--CH.sub.2CH.sub.2OH; --CH.sub.2NH.sub.2;
--CH.sub.2SO.sub.2CH.sub.3; --C(O)R.sub.x; --CO.sub.2(R.sub.x);
--CON(R.sub.x).sub.2; --OC(O)R.sub.x; --OCO2R.sub.x;
--OCON(R.sub.x).sub.2; --N(R.sub.x).sub.2; --S(O).sub.2R.sub.x;
--NR.sub.x(CO)R.sub.x wherein each occurrence of R.sub.x
independently includes, but is not limited to, aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, wherein any of the aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, substituents described above and
herein may be substituted or unsubstituted, branched or unbranched,
cyclic or acyclic, and wherein any of the aryl or heteroaryl
substituents described above and herein may be substituted or
unsubstituted. Additional examples of generally applicable
substituents are illustrated by the specific embodiments shown in
the Examples that are described herein.
[0568] The term "cycloalkyl", as used herein, refers specifically
to groups having three to seven, preferably three to ten carbon
atoms. Suitable cycloalkyls include, but are not limited to
cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and
the like, which, as in the case of other aliphatic, heteroaliphatic
or heterocyclic moieties, may optionally be substituted with
substituents including, but not limited to aliphatic; alicyclic;
heteroaliphatic; heteroalicyclic; aryl; heteroaryl; alkylaryl;
alkylheteroaryl; alkoxy; aryloxy; heteroalkoxy; heteroaryloxy;
alkylthio; arylthio; heteroalkylthio; heteroarylthio; F; Cl; Br; I;
--OH; --NO.sub.2; --CN; --CF.sub.3; --CH.sub.2CF.sub.3;
--CHCl.sub.2; --CH.sub.2OH; --CH.sub.2CH.sub.2OH;
--CH.sub.2NH.sub.2; --CH.sub.2SO.sub.2CH.sub.3; --C(O)R.sub.x;
--CO.sub.2(R.sub.x); --CON(R.sub.x).sub.2; --OC(O)R.sub.x;
--OCO.sub.2R.sub.x; --OCON(R.sub.x).sub.2; --N(R.sub.x).sub.2;
--S(O).sub.2R; --NR.sub.x(CO)R.sub.x wherein each occurrence of
R.sub.x independently includes, but is not limited to, aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, wherein any of the aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, substituents described above and
herein may be substituted or unsubstituted, branched or unbranched,
cyclic or acyclic, and wherein any of the aryl or heteroaryl
substituents described above and herein may be substituted or
unsubstituted. Additional examples of generally applicable
substituents are illustrated by the specific embodiments shown in
the Examples that are described herein.
[0569] The term "heteroaliphatic", as used herein, refers to
aliphatic moieties in which one or more carbon atoms in the main
chain have substituted with an heteroatom. Thus, a heteroaliphatic
group refers to an aliphatic chain which contains one or more
oxygen sulfur, nitrogen, phosphorus or silicon atoms, e.g., in
place of carbon atoms. Heteroaliphatic moieties may be branched or
linear unbranched. In certain embodiments, heteroaliphatic moieties
are substituted by independent replacement of one or more of the
hydrogen atoms thereon with one or more moieties including, but not
limited to aliphatic; alicyclic; heteroaliphatic; heteroalicyclic;
aryl; heteroaryl; alkylaryl; alkylheteroaryl; alkoxy; aryloxy;
heteroalkoxy; heteroaryloxy; alkylthio; arylthio; heteroalkylthio;
heteroarylthio; F; Cl; Br; I; --OH; --NO.sub.2; --CN; --CF.sub.3;
--CH.sub.2CF.sub.3; --CHCl.sub.2; --CH.sub.2OH;
--CH.sub.2CH.sub.2OH; --CH.sub.2NH.sub.2;
--CH.sub.2SO.sub.2CH.sub.3; --C(O)R.sub.x; --CO.sub.2(R.sub.x);
--CON(R.sub.x).sub.2; --OC(O)R.sub.x; --OCO.sub.2R.sub.x;
--OCON(R.sub.x).sub.2; --N(R.sub.x).sub.2; --S(O).sub.2R.sub.x;
--NR.sub.x(CO)R.sub.x wherein each occurrence of R.sub.x
independently includes, but is not limited to, aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, wherein any of the aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, alkylaryl, or
alkylheteroaryl substituents described above and herein may be
substituted or unsubstituted, branched or unbranched, cyclic or
acyclic, and wherein any of the aryl or heteroaryl substituents
described above and herein may be substituted or unsubstituted.
Additional examples of generally applicable substituents are
illustrated by the specific embodiments shown in the Examples that
are described herein.
[0570] The term "heteroalicyclic", as used herein, refers to
compounds which combine the properties of heteroaliphatic and
cyclic compounds and include but are not limited to saturated and
unsaturated mono- or polycyclic heterocycles such as morpholino,
pyrrolidinyl, furanyl, thiofuranyl, pyrrolyl etc., which are
optionally substituted with one or more functional groups.
[0571] The terms "halo" and "halogen" as used herein refer to an
atom selected from fluorine, chlorine, bromine and iodine.
[0572] The term "haloalkyl" denotes an alkyl group, as defined
above, having one, two, or three halogen atoms attached thereto and
is exemplified by such groups as chloromethyl, bromoethyl,
trifluoromethyl, and the like.
[0573] The term "heterocycloalkyl" or "heterocycle", as used
herein, refers to a non-aromatic 5-, 6- or 7-membered ring or a
polycyclic group, including, but not limited to a bi- or tri-cyclic
group comprising fused six-membered rings having between one and
three heteroatoms independently selected from oxygen, sulfur and
nitrogen, wherein (i) each 5-membered ring has 0 to 1 double bonds
and each 6-membered ring has 0 to 2 double bonds, (ii) the nitrogen
and sulfur heteroatoms may be optionally be oxidized, (iii) the
nitrogen heteroatom may optionally be quaternized, and (iv) any of
the above heterocyclic rings may be fused to an aryl or heteroaryl
ring. Representative heterocycles include, but are not limited to,
pyrrolidinyl, pyrazolinyl, pyrazolidinyl, imidazolinyl,
imidazolidinyl, piperidinyl, piperazinyl, oxazolidinyl,
isoxazolidinyl, morpholinyl, thiazolidinyl, isothiazolidinyl, and
tetrahydrofuryl. In certain embodiments, a "substituted
heterocycloalkyl or heterocycle" group is utilized and as used
herein, refers to a heterocycloalkyl or heterocycle group, as
defined above, substituted by the independent replacement of one,
two or three of the hydrogen atoms thereon with but are not limited
to aliphatic; alicyclic; heteroaliphatic; heteroalicyclic; aryl;
heteroaryl; alkylaryl; alkylheteroaryl; alkoxy; aryloxy;
heteroalkoxy; heteroaryloxy; alkylthio; arylthio; heteroalkylthio;
heteroarylthio; F; Cl; Br; I; --OH; --NO.sub.2; --CN; --CF.sub.3;
--CH.sub.2CF.sub.3; --CHCl.sub.2; --CH.sub.2OH;
--CH.sub.2CH.sub.2OH; --CH.sub.2NH.sub.2;
--CH.sub.2SO.sub.2CH.sub.3; --C(O)R.sub.x; --CO.sub.2(R.sub.x);
--CON(R.sub.x).sub.2; --OC(O)R.sub.x; --OCO.sub.2R.sub.x;
--OCON(R.sub.x).sub.2; --N(R.sub.x).sub.2; --S(O).sub.2R.sub.x;
--NR.sub.x(CO)R.sub.x wherein each occurrence of R.sub.x
independently includes, but is not limited to, aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, wherein any of the aliphatic,
alicyclic, heteroaliphatic, heteroalicyclic, aryl, heteroaryl,
alkylaryl, or alkylheteroaryl, substituents described above and
herein may be substituted or unsubstituted, branched or unbranched,
cyclic or acyclic, and wherein any of the aryl or heteroaryl
substitutents described above and herein may be substituted or
unsubstituted. Additional examples or generally applicable
substituents are illustrated by the specific embodiments shown in
the Examples, which are described herein.
[0574] As used herein, the terms "aliphatic", "heteroaliphatic",
"alkyl", "alkenyl", "alkynyl", "heteroalkyl", "heteroalkenyl",
"heteroalkynyl", and the like encompass substituted and
unsubstituted, saturated and unsaturated, and linear and branched
groups. Similarly, the terms "alicyclic", "heteroalicyclic",
"heterocycloalkyl", "heterocycle", and the like encompass
substituted and unsubstituted, and saturated and unsaturated
groups. In addition, the terms "aliphatic(aryl)", "heteroaliphatic
(aryl)", "aliphatic(heteroaryl)", "heteroaliphatic(heteroaryl)",
"alicyclic(aryl)", "hetero alicyclic(aryl)",
"alicyclic(heteroaryl)", "heteroalicyclic(heteroaryl)",
"-alkyl(aryl)", "heteroalkyl(aryl)", "-alkyl(heteroaryl)",
"heteroalkyl(heteroaryl)", and the like encompass substituted and
unsubstituted, and saturated and unsaturated (i.e., non-aromatic
portion of the moiety) groups. Additionally, the terms
"cycloalkyl", "cycloalkenyl", "cycloalkynyl", "heterocycloalkyl",
"heterocycloalkenyl", "heterocycloalkynyl", "aryl", "heteroaryl"
and the like encompass both substituted and unsubstituted groups,
unless otherwise indicated.
[0575] 3) Synthetic Methodology
[0576] According to the present invention, any available techniques
can be used to make or prepare the inventive compounds or
compositions including them. For example, a variety of solution
phase synthetic methods such as those discussed in detail below may
be used. Alternatively or additionally, the inventive compounds may
be prepared using any of a variety combinatorial techniques,
parallel synthesis and/or solid phase synthetic methods known in
the art.
[0577] In one aspect, the present invention provides novel peptides
having formula (I) as described above and in certain classes and
subclasses herein. Examples of synthetic methods for preparing
exemplary types of compounds of the invention are provided below,
as detailed in Schemes 1-12, and in the Exemplification herein. It
will be appreciated that the methods as described herein can be
applied to each of the compounds as disclosed herein and
equivalents thereof. Additionally, the reagents and starting
materials are well known to those skilled in the art. Although the
following schemes describe certain exemplary compounds, it will be
appreciated that the use of alternate starting materials will yield
other analogs of the invention. For example, compounds are
described below where X.sub.1 and X.sub.2 are each C.dbd.O, R.sub.5
is hydrogen, R.sub.6 is tert-butyl and R.sub.7 is methyl; however,
it will be appreciated that alternate starting materials and/or
intermediates can be utilized to generate compounds where, for
example, X.sub.1 and X.sub.2 may be independently C.dbd.O,
CH.sub.2, SO.sub.2, and R.sub.5-R.sub.7 may represent moieties
other than those depicted herein, such as alkyl, heteroalkyl, aryl,
heteroaryl, etc. It will also be appreciated that any available
techniques known in the art can be used to make the inventive
compounds or compositions including them. A person of ordinary
skill in the art will recognize that suitable synthetic methods are
not limited to those depicted in Schemes 1-12 below, and that any
suitable synthetic methods known in the art can be used to prepare
the inventive compounds.
[0578] In certain embodiments, the inventive compounds, have the
general structure (I') as shown in Scheme 1, where R, R' and Q are
aliphatic, heteroaliphatic, aryl or heteroaryl moieties. In
preferred embodiments, R, R' and Q are moieties such as those
described in classes and subclasses herein. Examples of preferred
structures for R, R' and Q are depicted in Scheme 1.
##STR00080##
[0579] In certain embodiments, the inventive compounds belong to
class (Ia) and subclasses thereof, as described herein. Scheme 2
depicts the synthesis of exemplary compounds of this class
(compounds of general structure 11). As shown in Scheme 2, the
dipeptide core can be constructed, for example, from
N-Boc-N-methyl-valinal (2) and N-Boc-tert-leucine (4). The
N-terminal moiety of the compounds of the invention (R' in Scheme
1) may be provided by (S)-N-Boc-neo-phenylalanine (6). As depicted
in Scheme 2, a variety of synthetic methods allow access to a
variety of analogs, for example, carboxylic esters of general
structure 7, carboxylic acid 8 or amides of general structure 11.
The reader will appreciate that other synthetic methods known in
the art can be used to prepare other derivatives.
##STR00081## ##STR00082##
[0580] An exemplary synthetic approach for the preparation of
intermediate 6 is depicted in Scheme 3. The method afforded
(S)-N-Boc-neo-phenylalanine (6) in 20% overall yield.
##STR00083## ##STR00084##
[0581] In certain other embodiments, the inventive compounds belong
to class (Ib) and subclasses thereof, as described herein. Schemes
4-6 depict the synthesis of exemplary types of compounds of this
class (for example, Amine Esters, Amine Acids, Amine Amides and
N-Acetyl Amine Amides of general structure 18, 20, 23, respectively
as seen in Schemes 4; See also Amine Esters, Amine Acids, Amine
Amides and N-Acetyl Amine Amides of general structure 25, 26 and
27, respectively in Scheme 5). In certain embodiments, R may be a
nitrogen-containing heteroalkyl moiety (see Schemes 4 and 5) or an
unsaturated oxygen-containing heteroalkyl moiety (see Scheme 6).
Although Schemes 4-6 depict compounds comprising an N-terminal
moiety derived from (S)-N-Boc-neo-phenylalanine (6), a person of
ordinary skill in the art would appreciate that a wide variety of
organic moieties other than those described in Schemes 4-6 may be
used to construct the compounds of the invention. Similarly,
Schemes 4-6 recite compounds where the C-terminal moiety may be
carboxylic esters, carboxylic acids or amides. It is to be
understood that the scope of the invention is not limited to these
compounds, but rather encompasses derivatives and analogs of these
compounds, or compounds obtained from different starting
materials.
##STR00085## ##STR00086##
##STR00087##
##STR00088##
[0582] In certain other embodiments, the inventive compounds belong
to class (Ic) and subclasses thereof, as described herein. Schemes
7-10 depict the synthesis of exemplary types of compounds of this
class (for example Amine Esters, Amine Acids and Amine Amides of
general structure 42, 43 and 45, respectively, as seen in Scheme
7). In certain embodiments, the compounds of the invention comprise
a nitrogen-containing heterocyclic N-terminal moiety. For example,
the heterocyclic moiety may be a piperidine ring (Schemes 7, 8 and
9) or a thiazolidine ring (Scheme 10). Examples of other suitable
moieties are described in the Examplification herein, or will be
apparent to the person of ordinary skill in the art. As discussed
above, R may be a nitrogen-containing heteroalkyl moiety (Scheme 7)
or an unsaturated alkyl moiety (Schemes 8, 9 and 10).
##STR00089## ##STR00090##
##STR00091## ##STR00092##
##STR00093##
##STR00094##
[0583] In certain other embodiments, the inventive compounds belong
to class (Id) and subclasses thereof, as described herein. One
skilled in the art would appreciate that the exemplary heterocyclic
starting materials described in Schemes 7-10, that are used in the
preparation of compounds of class (Ic) (namely compounds 38, 60 or
65) could be substituted for acyclic .alpha.-amino acid moieties to
access compounds of class (Id), as illustrated in Scheme 11
below:
##STR00095##
[0584] For example, reaction of diethylglycine (72) with amine HCl
salt 49 gives the N-terminal gem-diethyl ethyl ester 73, or the
corresponding carboxylic acid 74, after hydrolysis under suitable
conditions (Scheme 12).
##STR00096##
[0585] It will be appreciated that each of the reactions described
in Schemes 2-12 above can be carried out using reagents and
conditions as described for the synthesis of various types of
exemplary compounds described above, or they may be modified using
other available reagents or starting materials. For example, a
variety of amide formation conditions, esterification, hydrolysis
and aromatic nucleus functionalization conditions are well-known in
the art and can be utilized in the method of the invention. See,
generally, March, Advanced Organic Chemistry, 5th ed., John Wiley
& Sons, 2001; and "Comprehensive Organic Transformations, a
guide to functional group preparations", Richard C. Larock, VCH
publishers, 1999; the entire contents of which are incorporated
herein by reference.
[0586] As mentioned above, it will be appreciated that the
invention is not limited in scope to the compounds recited herein.
Synthetic strategies or starting materials other than those
described herein may be used to prepare compounds of general
structure (I). It will also be appreciated that each of the
components/starting materials used in the synthesis of the
compounds of the invention can be diversified either before
synthesis or alternatively after the construction of the peptide
construct. As used herein, the term "diversifying" or "diversify"
means reacting an inventive compound, as defined herein, at one or
more reactive sites to modify a functional moiety or to add a
functional moiety. For example, where an aromatic ring is present
in the compound, the aromatic ring can be diversified (prior to or
after reaction) to either add functionality (e.g., where hydrogen
is present, a halogen or other functionality can be added) or to
modify functionality (e.g., where a hydroxyl group is present on
the aromatic ring, the aromatic ring can be diversified by reacting
with a reagent to protect the hydroxyl group, or to convert it into
an aliphatic or heteroaliphatic moiety). Described generally below
are a variety of schemes to assist the reader in the synthesis of a
variety of analogues, either by diversification of the intermediate
components or by diversification of the peptide construct.
[0587] In certain embodiments, the preparation of chemically
diverse derivatives may be achieved by diversifying the C-terminal
moiety of the compounds. For example, where the C-terminal moiety
is a carboxylic acid, examples of chemical transformations suitable
to achieve such derivatization include, but are not limited to,
reduction to the corresponding aldehyde or alcohol, amidation,
Wittig reaction, decarboxylation, esterification, addition of
nucleophiles, conversion to ketones, imines, hydrazones, azides,
etc. . . . . Examples of such transformations are depicted in
Schemes 12 and 13. One skilled in the art will recognize that
possible chemical transformations suitable to achieve
diversification of the compounds of the invention are not limited
to those depicted in Schemes 1-13. Rather, any suitable synthetic
methods known in the art can be used to achieve desired chemical
transformations.
##STR00097##
##STR00098##
[0588] 4) Research Uses, Formulation and Administration
[0589] According to the present invention, the inventive compounds
may be assayed in any of the available assays known in the art for
identifying compounds having a pre-determined biological activity.
For example, the assay may be cellular or non-cellular, in vivo or
in vitro, high- or low-throughput format, etc. In certain exemplary
embodiments, the inventive compounds are tested in assays to
identify those compounds having cytotoxic or growth inhibitory
effect in vitro, or cause tumor regression and/or inhibition of
tumor growth in vivo.
[0590] Compounds of this invention which are of particular interest
include those which: [0591] exhibit cytotoxic and/or growth
inhibitory effect on cancer cell lines maintained in vitro or in
animal studies using a scientifically acceptable cancer cell
xenograft model; [0592] preferably cause tumor regression in vivo;
[0593] exhibit low sensitivity to MDR; [0594] exhibit low
cytotoxicity to non-dividing normal cells; and/or [0595] exhibit a
favorable therapeutic profile (e.g., safety, efficacy, and
stability).
[0596] As detailed in the exemplification herein, in assays to
determine the ability of compounds to inhibit the growth of tumor
cell lines in vitro, certain inventive compounds exhibited
IC.sub.50 values .ltoreq.10 .mu.M. In other embodiments, compounds
of the invention exhibit IC.sub.50 values .ltoreq.5 .mu.M. In other
embodiments, compounds of the invention exhibit IC.sub.50 values
.ltoreq.1 .mu.M. In other embodiments, compounds of the invention
exhibit IC.sub.50 values .ltoreq.750 nM. In other embodiments,
compounds of the invention exhibit IC.sub.50 values .ltoreq.500 nM.
In other embodiments, compounds of the invention exhibit IC.sub.50
values .ltoreq.250 nM. In other embodiments, compounds of the
invention exhibit IC.sub.50 values .ltoreq.100 nM. In other
embodiments, compounds of the invention exhibit IC.sub.50 values
.ltoreq.50 nM. In other embodiments, compounds of the invention
exhibit IC.sub.50 values .ltoreq.25 nM. In other embodiments,
compounds of the invention exhibit IC.sub.50 values .ltoreq.10 nM.
In other embodiments, compounds of the invention exhibit IC.sub.50
values .ltoreq.7.5 nM. In other embodiments, compounds of the
invention exhibit IC.sub.50 values .ltoreq.5 nM. In other
embodiments, compounds of the invention exhibit IC.sub.50 values
.ltoreq.2.5 nM. In other embodiments, compounds of the invention
exhibit IC.sub.50 values .ltoreq.1 nM. In other embodiments,
compounds of the invention exhibit IC.sub.50 values .ltoreq.0.75
nM. In other embodiments, compounds of the invention exhibit
IC.sub.50 values .ltoreq.0.5 nM. In other embodiments, compounds of
the invention exhibit IC.sub.50 values .ltoreq.0.25 nM. In other
embodiments, compounds of the invention exhibit IC.sub.50 values
.ltoreq.0.1 nM. In certain embodiments, compounds of the invention
exhibit growth inhibition IC.sub.50 values in cultured human cancer
cells in the range of 0.1 nM-10 nM.
[0597] In certain other embodiments, compounds of the invention
exhibit low sensitivity to MDR. In certain exemplary embodiments,
compounds of the invention have a ratio [cell growth inhibition in
MDR-positive cells]/[cell growth inhibition in MDR-negative cells]
(i.e., resistance ratio).ltoreq.10. In certain exemplary
embodiments, compounds of the invention have a resistance ratio
.ltoreq.9. In certain exemplary embodiments, compounds of the
invention have a resistance ratio .ltoreq.8. In certain exemplary
embodiments, compounds of the invention have a resistance ratio
.ltoreq.7. In certain exemplary embodiments, compounds of the
invention have a resistance ratio .ltoreq.6. In certain exemplary
embodiments, compounds of the invention have a resistance ratio
.ltoreq.5. In certain exemplary embodiments, compounds of the
invention have a resistance ratio .ltoreq.4.
[0598] In certain other embodiments, compounds of the invention
exhibit low cytotoxicity to non-dividing normal cells. In certain
exemplary embodiments, inventive compounds exhibit little or no
cytotoxicity in non-dividing normal cells at concentrations
.gtoreq.1000 fold the concentration at which they inhibit cancer
cell growth. In certain exemplary embodiments, inventive compounds
exhibit little or no cytotoxicity in non-dividing normal cells at
concentrations in the range of up to 1-10 .mu.M.
[0599] In certain embodiments, inventive compounds exhibit
stability in mouse serum.
[0600] In certain embodiments, inventive compounds exhibit a low
mitotic block reversibility ratio. In certain embodiments,
inventive compounds exhibit mitotic block reversibility ratios of 1
to about 30. In certain embodiments, inventive compounds exhibit
mitotic block reversibility ratios of 1 to about 25. In certain
embodiments, inventive compounds exhibit mitotic block
reversibility ratios of 1 to about 20. In certain embodiments,
inventive compounds exhibit mitotic block reversibility ratios of 1
to about 15. In certain embodiments, inventive compounds exhibit
mitotic block reversibility ratios of 1 to about 10. In certain
embodiments, inventive compounds exhibit mitotic block
reversibility ratios of 1 to about 5. In certain embodiments,
inventive compounds exhibit mitotic block reversibility ratios of 1
to about 3.
[0601] In certain embodiments, compounds of the invention cause
tumor regression in vivo. In certain exemplary embodiments,
compounds of the invention cause tumor regression in vivo in
suitable mouse tumor xenograph models. In certain exemplary
embodiments, compounds of the invention cause reduction of tumor
size to below 70% of the size at the start of compound
administration in a suitable cancer cell xenograft model. In
certain exemplary embodiments, compounds of the invention cause
reduction of tumor size to below 65% of the size at the start of
compound administration in a suitable cancer cell xenograft model.
In certain exemplary embodiments, compounds of the invention cause
reduction of tumor size to below 60% of the size at the start of
compound administration in a suitable cancer cell xenograft model.
In certain exemplary embodiments, compounds of the invention cause
reduction of tumor size to below 55% of the size at the start of
compound administration in a suitable cancer cell xenograft model.
In certain exemplary embodiments, compounds of the invention cause
reduction of tumor size to below 50% of the size at the start of
compound administration in a suitable cancer cell xenograft model.
In certain exemplary embodiments, compounds of the invention cause
tumor regression in certain multidrug resistant xenograph
models.
[0602] In certain exemplary embodiments, compounds of the invention
cause inhibition of tumor growth in vivo. In certain exemplary
embodiments, compounds of the invention cause significant
inhibition of tumor growth in suitable cancer cell xenograft
models. In certain exemplary embodiments, compounds of the
invention cause significant inhibition of tumor growth in suitable
multidrug resistant cancer cell xenograft models. In certain
exemplary embodiments, compounds of the invention cause inhibition
of tumor growth in treated animals by >50% compared to that of
control animals (i.e., "treated" tumor size <50% "control" tumor
size; or T/C value <50%) in suitable cancer cell xenograft
models. In certain embodiments, compounds of the invention have T/C
values <70%. In certain embodiments, compounds of the invention
have T/C values <65%. In certain embodiments, compounds of the
invention have T/C values <60%. In certain embodiments,
compounds of the invention have T/C values <55%.
[0603] In certain embodiments, compounds of the invention inhibit
the growth of human cancer cells in vitro, exhibit low sensitivity
to MDR (e.g., low resistance ratio), exhibit low cytotoxicity to
non-dividing normal cells, exhibit stability in mouse serum, have a
low mitotic block reversibility ratio, cause tumor regression in
vivo, and/or cause inhibition of tumor growth in vivo.
[0604] In certain embodiments, compounds of the invention inhibit
the growth of human cancer cells in vitro, exhibit low sensitivity
to MDR (e.g., low resistance ratio), exhibit low cytotoxicity to
non-dividing normal cells, exhibit stability in mouse serum, have a
low mitotic block reversibility ratio, cause tumor regression in
vivo, and cause inhibition of tumor growth in vivo.
[0605] In certain embodiments, compounds of the invention have any
one or more of the following properties: [0606] (i) exhibit growth
inhibition IC.sub.50 values in cultured human cancer cells in the
range of 0.1 nM-10 nM; [0607] (ii) have a resistance ratio
preferably .ltoreq.10, preferably .ltoreq.9, preferably .ltoreq.8,
preferably .ltoreq.7, preferably .ltoreq.6, preferably .ltoreq.5,
more preferably .ltoreq.4; [0608] (iii) exhibit little or no
cytotoxicity in non-dividing normal cells at concentrations in the
range of up to 1-10 .mu.M; [0609] (iv) exhibit stability in mouse
serum; [0610] (v) exhibit mitotic block reversibility ratios of 1
to about 30, preferably of 1 to about 25, preferably of 1 to about
20, preferably of 1 to about 15, preferably of 1 to about 10,
preferably of 1 to about 5, most preferably of about 1 to about 3;
[0611] (vi) cause reduction of tumor size to below 70%, preferably
below 65%, preferably below 60%, preferably below 55%, most
preferably below 50%, of the size at the start of compound
administration in suitable cancer cell xenograft models; and/or
[0612] (vii) cause significant inhibition of tumor growth in
suitable cancer cell xenograft model (e.g., T/C value preferably
<70%, preferably <65%, preferably <60%, preferably
<55%, most preferably <50%).
[0613] In certain embodiments, compounds of the invention have the
following properties: [0614] (i) exhibit growth inhibition
IC.sub.50 values in cultured human cancer cells in the range of 0.1
nM-10 nM; [0615] (ii) have a resistance ratio preferably
.ltoreq.10, preferably .ltoreq.9, preferably .ltoreq.8, preferably
.ltoreq.7, preferably .ltoreq.6, preferably .ltoreq.5, more
preferably .ltoreq.4; [0616] (iii) exhibit little or no
cytotoxicity in non-dividing normal cells at concentrations in the
range of up to 1-10 .mu.M; [0617] (iv) exhibit stability in mouse
serum; [0618] (v) exhibit mitotic block reversibility ratios of 1
to about 30, preferably of 1 to about 25, preferably of 1 to about
20, preferably of 1 to about 15, preferably of 1 to about 10,
preferably of 1 to about 5, most preferably of about 1 to about 3;
[0619] (vi) cause reduction of tumor size to below 70%, preferably
below 65%, preferably below 60%, preferably below 55%, most
preferably below 50%, of the size at the start of compound
administration in suitable cancer cell xenograft models; and [0620]
(vii) cause significant inhibition of tumor growth in suitable
cancer cell xenograft model (e.g., T/C value preferably <70%,
preferably <65%, preferably <60%, preferably <55%, most
preferably <50%).
[0621] Examples of compounds exhibiting desired properties include
ER-805913, ER-805736, ER-807102, ER-807328, ER-806925, ER-807850,
ER-807904, ER-807974, ER-808368, ER-808662, ER-808824, and salts
thereof (See Table below).
[0622] As discussed above, compounds of the invention exhibit
activity for the inhibition of tumor cell growth. As such, the
inventive compounds as useful for the treatment of a variety of
disorders, including, but not limited to, glioblastoma,
retinoblastoma, breast cancer, cervical cancer, colon and rectal
cancer, leukemia, lung cancer (including, but not limited to small
cell lung cancer), melanoma, multiple myeloma, non-Hodgkins
lymphoma, ovarian cancer, pancreatic cancer, prostate cancer and
gastric cancer, to name a few. In certain embodiments, the
inventive compounds are useful for the treatment of solid and
non-solid tumors. In still other embodiments of interest, the
inventive compounds are particularly useful for the treatment of
breast cancer, prostate cancer, colon cancer, lung cancer, leukemia
and lymphoma.
[0623] In certain embodiment, the method involves the
administration of a therapeutically effective amount of the
compound or a pharmaceutically acceptable derivative thereof to a
subject (including, but not limited to a human or animal) in need
of it. In certain embodiments, the inventive compounds as useful
for the treatment of cancer (including, but not limited to,
glioblastoma, retinoblastoma, breast cancer, cervical cancer, colon
and rectal cancer, leukemia, lymphoma, lung cancer (including, but
not limited to small cell lung cancer), melanoma and/or skin
cancer, multiple myeloma, non-Hodgkin's lymphoma, ovarian cancer,
pancreatic cancer, prostate cancer and gastric cancer, bladder
cancer, uterine cancer, kidney cancer, testicular cancer, stomach
cancer, brain cancer, liver cancer, or esophageal cancer).
[0624] Pharmaceutical Compositions
[0625] As discussed above this invention provides novel compounds
that have biological properties useful for the treatment of cancer.
In certain embodiments, certain of the compounds as described
herein act as inhibitors of tumor growth and thus are useful in the
treatment of cancer and in the inhibition of tumor growth and in
the killing of cancer cells. In certain embodiments, the inventive
compounds are useful for the treatment of solid tumors or non-solid
tumors. In still other embodiments of interest, the inventive
compounds are useful for the treatment of glioblastoma,
retinoblastoma, breast cancer, cervical cancer, colon and rectal
cancer, leukemia, lymphoma, lung cancer (including, but not limited
to small cell lung cancer), melanoma, multiple myeloma,
non-Hodgkin's lymphoma, ovarian cancer, pancreatic cancer, prostate
cancer and gastric cancer, to name a few. The inventive compounds
also find use in the prevention of restenosis of blood vessels
subject to traumas such as angioplasty and stenting.
[0626] Accordingly, in another aspect of the present invention,
pharmaceutical compositions are provided, which comprise any one of
the compounds described herein (or a prodrug, pharmaceutically
acceptable salt or other pharmaceutically acceptable derivative
thereof), and optionally comprise a pharmaceutically acceptable
carrier. In certain embodiments, the compounds are capable of
inhibiting the growth of or killing cancer cells. In certain
embodiments, these compositions optionally further comprise one or
more additional therapeutic agents. Alternatively, a compound of
this invention may be administered to a patient in need thereof in
combination with the administration of one or more other
therapeutic agents. For example, additional therapeutic agents for
conjoint administration or inclusion in a pharmaceutical
composition with a compound of this invention may be a cytotoxic
agent or anticancer agent approved for the treatment of cancer, as
discussed in more detail herein, or it may be any one of a number
of agents undergoing approval in the Food and Drug Administration
that ultimately obtain approval for the treatment of an immune
disorder or cancer. It will also be appreciated that certain of the
compounds of present invention can exist in free form for
treatment, or where appropriate, as a pharmaceutically acceptable
derivative thereof. According to the present invention, a
pharmaceutically acceptable derivative includes, but is not limited
to, pharmaceutically acceptable salts, esters, salts of such
esters, or a prodrug or other adduct or derivative of a compound of
this invention which upon administration to a patient in need is
capable of providing, directly or indirectly, a compound as
otherwise described herein, or a metabolite or residue thereof.
[0627] As used herein, the term "pharmaceutically acceptable salt"
refers to those salts which are, within the scope of sound medical
judgment, suitable for use in contact with the tissues of humans
and lower animals with little or no undue toxicity, irritation,
allergic response and the like, and are commensurate with a
reasonable benefit/risk ratio. Pharmaceutically acceptable salts of
amines, carboxylic acids, and other types of compounds, are well
known in the art. For example, S. M. Berge, et al. describe
pharmaceutically acceptable salts in detail in J. Pharmaceutical
Sciences, 66: 1-19 (1977), incorporated herein by reference. The
salts can be prepared in situ during the final isolation and
purification of the compounds of the invention, or separately by
reacting a free base or free acid function with a suitable reagent,
as described generally below. For example, a free base function can
be reacted with a suitable acid. Furthermore, where the compounds
of the invention carry an acidic moiety, suitable pharmaceutically
acceptable salts thereof may, include metal salts such as alkali
metal salts, e.g. sodium or potassium salts; and alkaline earth
metal salts, e.g. calcium or magnesium salts. Examples of
pharmaceutically acceptable, nontoxic acid addition salts are salts
of an amino group formed with inorganic acids such as hydrochloric
acid, hydrobromic acid, phosphoric acid, sulfuric acid and
perchloric acid or with organic acids such as acetic acid, oxalic
acid, maleic acid, tartaric acid, citric acid, succinic acid or
malonic acid or by using other methods used in the art such as ion
exchange. Other pharmaceutically acceptable salts include adipate,
alginate, ascorbate, aspartate, benzenesulfonate, benzoate,
bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate,
cyclopentanepropionate, digluconate, dodecyl sulfate,
ethanesulfonate, formate, fumarate, glucoheptonate,
glycerophosphate, gluconate, hernisulfate, heptanoate, hexanoate,
hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate,
laurate, lauryl sulfate, malate, maleate, malonate,
methanesulfonate, 2-naphthalenesulfonate, nicotinate, nitrate,
oleate, oxalate, palmitate, pamoate, pectinate, persulfate,
3-phenylpropionate, phosphate, picrate, pivalate, propionate,
stearate, succinate, sulfate, tartrate, thiocyanate,
p-toluenesulfonate, trifluoroacetate, undecanoate, valerate salts,
and the like. Representative alkali or alkaline earth metal salts
include sodium, lithium, potassium, calcium, magnesium, and the
like. Further pharmaceutically acceptable salts include, when
appropriate, nontoxic ammonium, quaternary ammonium, and amine
cations formed using counterions such as halide, hydroxide,
carboxylate, sulfate, phosphate, nitrate, loweralkyl sulfonate and
aryl sulfonate.
[0628] Additionally, as used herein, the term "pharmaceutically
acceptable ester" refers to esters that hydrolyze in vivo and
include those that break down readily in the human body to leave
the parent compound or a salt thereof. Suitable ester groups
include, for example, those derived from pharmaceutically
acceptable aliphatic carboxylic acids, particularly alkanoic,
alkenoic, cycloalkanoic and alkanedioic acids, in which each alkyl
or alkenyl moeity advantageously has not more than 6 carbon atoms.
Examples of particular esters include formates, acetates,
propionates, butyrates, acrylates and ethylsuccinates.
[0629] Furthermore, the term "pharmaceutically acceptable prodrugs"
as used herein refers to those prodrugs of the compounds of the
present invention which are, within the scope of sound medical
judgment, suitable for use in contact with the issues of humans and
lower animals with undue toxicity, irritation, allergic response,
and the like, commensurate with a reasonable benefit/risk ratio,
and effective for their intended use, as well as the zwitterionic
forms, where possible, of the compounds of the invention. The term
"prodrug" refers to compounds that are rapidly transformed in vivo
to yield the parent compound of the above formula, for example by
hydrolysis in blood. A thorough discussion is provided in T.
Higuchi and V. Stella, Pro-drugs as Novel Delivery Systems, Vol. 14
of the A.C.S. Symposium Series, and in Edward B. Roche, ed.,
Bioreversible Carriers in Drug Design, American Pharmaceutical
Association and Pergamon Press, 1987, both of which are
incorporated herein by reference.
[0630] As described above, the pharmaceutical compositions of the
present invention additionally comprise a pharmaceutically
acceptable carrier, which, as used herein, includes any and all
solvents, diluents, or other liquid vehicle, dispersion or
suspension aids, surface active agents, isotonic agents, thickening
or emulsifying agents, preservatives, solid binders, lubricants and
the like, as suited to the particular dosage form desired.
Remington's Pharmaceutical Sciences, Sixteenth Edition, E. W.
Martin (Mack Publishing Co., Easton, Pa., 1980) discloses various
carriers used in formulating pharmaceutical compositions and known
techniques for the preparation thereof. Except insofar as any
conventional carrier medium is incompatible with the compounds of
the invention, such as by producing any undesirable biological
effect or otherwise interacting in a deleterious manner with any
other component(s) of the pharmaceutical composition, its use is
contemplated to be within the scope of this invention. Some
examples of materials which can serve as pharmaceutically
acceptable carriers include, but are not limited to, sugars such as
lactose, glucose and sucrose; starches such as corn starch and
potato starch; cellulose and its derivatives such as sodium
carboxymethyl cellulose, ethyl cellulose and cellulose acetate;
powdered tragacanth; malt; gelatine; talc; excipients such as cocoa
butter and suppository waxes; oils such as peanut oil, cottonseed
oil; safflower oil, sesame oil; olive oil; corn oil and soybean
oil; glycols; such as propylene glycol; esters such as ethyl oleate
and ethyl laurate; agar; buffering agents such as magnesium
hydroxide and aluminum hydroxide; alginic acid; pyrogenfree water;
isotonic saline; Ringer's solution; ethyl alcohol, and phosphate
buffer solutions, as well as other non-toxic compatible lubricants
such as sodium lauryl sulfate and magnesium stearate, as well as
coloring agents, releasing agents, coating agents, sweetening,
flavoring and perfuming agents, preservatives and antioxidants can
also be present in the composition, according to the judgment of
the formulator.
[0631] Uses and Formulations of Compounds of the Invention
[0632] As described in more detail herein, in general, the present
invention provides compounds useful for the treatment of cancer and
proliferative disorders.
[0633] As discussed above, certain of the compounds as described
herein act as inhibitors of tumor growth and thus are useful in the
treatment of cancer and in the inhibition of tumor growth and in
the killing of cancer cells. The invention further provides a
method for inhibiting tumor growth and/or tumor metastasis. The
method involves the administration of a therapeutically effective
amount of the compound or a pharmaceutically acceptable derivative
thereof to a subject (including, but not limited to a human or
animal) in need of it. In certain embodiments, the inventive
compounds are useful for the treatment of solid tumors or non-solid
tumors. In still other embodiments of interest, the inventive
compounds are useful for the treatment of glioblastoma,
retinoblastoma, breast cancer, cervical cancer, colon and rectal
cancer, leukemia, lymphoma, lung cancer (including, but not limited
to small cell lung cancer), melanoma, multiple myeloma,
non-Hodgkin's lymphoma, ovarian cancer, pancreatic cancer, prostate
cancer and gastric cancer, to name a few.
[0634] As described in more detail herein, in general, the present
invention provides compounds useful for the treatment of cancer,
particularly solid and non-solid tumors. Specifically, certain
compounds of the invention have been shown to inhibit the growth of
certain tumor cell lines in vitro, as described in more detail
herein, and are useful for the treatment of cancer, including solid
and non-solid tumors.
[0635] As discussed above, the inventive compounds also find use in
the prevention of restenosis of blood vessels subject to traumas
such as angioplasty and stenting. For example, it is contemplated
that the compounds of the invention will be useful as a coating for
implanted medical devices, such as tubings, shunts, catheters,
artificial implants, pins, electrical implants such as pacemakers,
and especially for arterial or venous stents, including
balloon-expandable stents. In certain embodiments inventive
compounds may be bound to an implantable medical device, or
alternatively, may be passively adsorbed to the surface of the
implantable device. In certain other embodiments, the inventive
compounds may be formulated to be contained within, or, adapted to
release by a surgical or medical device or implant, such as, for
example, stents, sutures, indwelling catheters, prosthesis, and the
like.
[0636] In certain exemplary embodiments, the inventive compounds
may be used as coating for stents. A stent is typically an open
tubular structure that has a pattern (or patterns) of apertures
extending from the outer surface of the stent to the lumen. It is
commonplace to make stents of biocompatible metallic materials,
with the patterns cut on the surface with a laser machine. The
stent can be electro-polished to minimize surface irregularities
since these irregularities can trigger an adverse biological
response. However, stents may still stimulate foreign body
reactions that result in thrombosis or restenosis. To avoid these
complications, a variety of stent coatings and compositions have
been proposed in the prior art literature both to reduce the
incidence of these complications or other complications and restore
tissue function by itself or by delivering therapeutic compound to
the lumen. For example, drugs having antiproliferative and
anti-inflammatory activities have been evaluated as stent coatings,
and have shown promise in preventing retenosis (See, for example,
Presbitero P. et al., "Drug eluting stents do they make the
difference?", Minerva Cardioangiol, 2002, 50(5):431-442; Ruygrok P.
N. et al., "Rapamycin in cardiovascular medicine", Intern. Med. J.,
2003, 33(3):103-109; and Marx S. O. et al., "Bench to bedside: the
development of rapamycin and its application to stent restenosis",
Circulation, 2001, 104(8):852-855, each of these references is
incorporated herein by reference in its entirety). Accordingly,
without wishing to be bound to any particular theory, Applicant
proposes that the inventive compounds, having antiproliferative
effects, can be used as stent coatings and/or in stent drug
delivery devices, inter alia for the prevention of restenosis. A
variety of compositions and methods related to stent coating and/or
local stent drug delivery for preventing restenosis are known in
the art (see, for example, U.S. Pat. Nos. 6,517,889; 6,273,913;
6,258,121; 6,251,136; 6,248,127; 6,231,600; 6,203,551; 6,153,252;
6,071,305; 5,891,507; 5,837,313 and published U.S. patent
application No.: US2001/0027340, each of which is incorporated
herein by reference in its entirety). For example, stents may be
coated with polymer-drug conjugates by dipping the stent in
polymer-drug solution or spraying the stent with such a solution.
In certain embodiment, suitable materials for the implantable
device include biocompatible and nontoxic materials, and may be
chosen from the metals such as nickel-titanium alloys, steel, or
biocompatible polymers, hydrogels, polyurethanes, polyethylenes,
ethylenevinyl acetate copolymers, etc. In certain embodiments, the
inventive compound, is coated onto a stent for insertion into an
artery or vein following balloon angioplasty.
[0637] The invention may be described therefore, in certain broad
aspects as a method of inhibiting arterial restenosis or arterial
occlusion following vascular trauma comprising administering to a
subject in need thereof, a composition comprising an inventive
compound conjugated to a suitable polymer or polymeric material. In
the practice of the method, the subject may be a coronary bypass,
vascular surgery, organ transplant or coronary or any other
arterial angioplasty patient, for example, and the composition may
be administered directly, intravenously, or even coated on a stent
to be implanted at the sight of vascular trauma.
[0638] In another aspect, the invention encompasses implants and
surgical or medical devices, including stents and grafts, coated
with or otherwise constructed to contain and/or release any of the
inventive compounds disclosed herein. In certain embodiments, the
compounds have antiproliferative activity. In certain other
embodiments, the compounds inhibit smooth muscle cell
proliferation. Representative examples of the inventive implants
and surgical or medical devices include cardiovascular devices
(e.g., implantable venous catheters, venous ports, tunneled venous
catheters, chronic infusion lines or ports, including hepatic
artery infusion catheters, pacemaker wires, implantable
defibrillators); neurologic/neurosurgical devices (e.g.,
ventricular peritoneal shunts, ventricular atrial shunts, nerve
stimulator devices, dural patches and implants to prevent epidural
fibrosis post-laminectomy, devices for continuous subarachnoid
infusions); gastrointestinal devices (e.g., chronic indwelling
catheters, feeding tubes, portosystemic shunts, shunts for ascites,
peritoneal implants for drug delivery, peritoneal dialysis
catheters, implantable meshes for hernias, suspensions or solid
implants to prevent surgical adhesions, including meshes);
genitourinary devices (e.g., uterine implants, including
intrauterine devices (IUDs) and devices to prevent endometrial
hyperplasia, fallopian tubal implants, including reversible
sterilization devices, fallopian tubal stents, artificial
sphincters and periurethral implants for incontinence, ureteric
stents, chronic indwelling catheters, bladder augmentations, or
wraps or splints for vasovasostomy); phthalmologic implants (e.g.,
multino implants and other implants for neovascular glaucoma, drug
eluting contact lenses for pterygiums, splints for failed
dacrocystalrhinostomy, drug eluting contact lenses for corneal
neovascularity, implants for diabetic retinopathy, drug eluting
contact lenses for high risk corneal transplants); otolaryngology
devices (e.g., ossicular implants, Eustachian tube splints or
stents for glue ear or chronic otitis as an alternative to
transtempanic drains); plastic surgery implants (e.g., prevention
of fibrous contracture in response to gel- or saline-containing
breast implants in the subpectoral or subglandular approaches or
post-mastectomy, or chin implants), and orthopedic implants (e.g.,
cemented orthopedic prostheses).
[0639] Implants and other surgical or medical devices may be coated
with (or otherwise adapted to release) compositions of the present
invention in a variety of manners, including for example: (a) by
directly affixing to the implant or device an inventive compound or
composition (e.g., by either spraying the implant or device with a
polymer/drug film, or by dipping the implant or device into a
polymer/drug solution, or by other covalent or noncovalent means);
(b) by coating the implant or device with a substance such as a
hydrogel which will in turn absorb the inventive compound or
composition; (c) by interweaving inventive compound- or
composition-coated thread (or the polymer itself formed into a
thread) into the implant or device; (d) by inserting the implant or
device into a sleeve or mesh which is comprised of or coated with
an inventive compound or composition; (e) constructing the implant
or device itself with an inventive compound or composition; or (f)
by otherwise adapting the implant or device to release the
inventive compound. In certain embodiments, the composition should
firmly adhere to the implant or device during storage and at the
time of insertion. The inventive compound or composition should
also preferably not degrade during storage, prior to insertion, or
when warmed to body temperature after insertion inside the body (if
this is required). In addition, it should preferably coat the
implant or device smoothly and evenly, with a uniform distribution
of inventive compound, while not changing the stent contour. Within
preferred embodiments of the invention, the inventive implant or
device should provide a uniform, predictable, prolonged release of
the inventive compound or composition into the tissue surrounding
the implant or device once it has been deployed. For vascular
stents, in addition to the above properties, the composition should
not render the stent thrombogenic (causing blood clots to form), or
cause significant turbulence in blood flow (more than the stent
itself would be expected to cause if it was uncoated).
[0640] In the case of stents, a wide variety of stents may be
developed to contain and/or release the inventive compounds or
compositions provided herein, including esophageal stents,
gastrointestinal stents, vascular stents, biliary stents, colonic
stents, pancreatic stents, ureteric and urethral stents, lacrimal
stents, Eustachian tube stents, fallopian tube stents and
tracheal/bronchial stents (See, for example, U.S. Pat. No.
6,515,016, the entire contents of which are incorporated herein by
reference). Stents may be readily obtained from commercial sources,
or constructed in accordance with well-known techniques.
Representative examples of stents include those described in U.S.
Pat. No. 4,768,523, entitled "Hydrogel Adhesive"; U.S. Pat. No.
4,776,337, entitled "Expandable Intraluminal Graft, and Method and
Apparatus for Implanting and Expandable Intraluminal Graft"; U.S.
Pat. No. 5,041,126 entitled "Endovascular Stent and Delivery
System"; U.S. Pat. No. 5,052,998 entitled "Indwelling Stent and
Method of Use"; U.S. Pat. No. 5,064,435 entitled "Self-Expanding
Prosthesis Having Stable Axial Length"; U.S. Pat. No. 5,089,606,
entitled "Water-insoluble Polysaccharide Hydrogel Foam for Medical
Applications"; U.S. Pat. No. 5,147,370, entitled "Nitinol Stent for
Hollow Body Conduits"; U.S. Pat. No. 5,176,626, entitled
"Indwelling Stent"; U.S. Pat. No. 5,213,580, entitled
"Biodegradable Polymeric Endoluminal Sealing Process"; and U.S.
Pat. No. 5,328,471, entitled "Method and Apparatus for Treatment of
Focal Disease in Hollow Tubular Organs and Other Tissue
Lumens."
[0641] As discussed above, the stent coated with (or otherwise
adapted to release) compositions of the present invention may be
used to eliminate a vascular obstruction and prevent restenosis
and/or reduce the rate of restenosis. Within other aspects of the
present invention, stents coated with (or otherwise adapted to
release) compositions of the present invention are provided for
expanding the lumen of a body passageway. Specifically, a stent
having a generally tubular structure, and a surface coated with (or
otherwise adapted to release) an inventive compound or composition
may be inserted into the passageway, such that the passageway is
expanded. In certain embodiments, the stent coated with (or
otherwise adapted to release) compositions of the present invention
may be used to eliminate a biliary, gastrointestinal, esophageal,
tracheal/bronchial, urethral or vascular obstruction.
[0642] In another aspect of the invention, methods for the
treatment of cancer are provided comprising administering a
therapeutically effective amount of a compound of formula (I), as
described herein, to a subject in need thereof. In certain
embodiments, the inventive compounds are useful for the treatment
of solid and non-solid tumors. It will be appreciated that the
compounds and compositions, according to the method of the present
invention, may be administered using any amount and any route of
administration effective for the treatment of cancer. Thus, the
expression "effective amount" as used herein, refers to a
sufficient amount of agent to kill or inhibit the growth of tumor
cells, or refers to a sufficient amount to reduce the growth of
tumor cells. The exact amount required will vary from subject to
subject, depending on the species, age, and general condition of
the subject, the severity of the infection, the particular
anticancer agent, its mode of administration, and the like. The
compounds of the invention are preferably formulated in dosage unit
form for ease of administration and uniformity of dosage. The
expression "dosage unit form" as used herein refers to a physically
discrete unit of therapeutic agent appropriate for the patient to
be treated. It will be understood, however, that the total daily
usage of the compounds and compositions of the present invention
will be decided by the attending physician within the scope of
sound medical judgment. The specific therapeutically effective dose
level for any particular patient or organism will depend upon a
variety of factors including the disorder being treated and the
severity of the disorder; the activity of the specific compound
employed; the specific composition employed; the age, body weight,
general health, sex and diet of the patient; the time of
administration, route of administration, and rate of excretion of
the specific compound employed; the duration of the treatment;
drugs used in combination or coincidental with the specific
compound employed; and like factors well known in the medical arts
(see, for example, Goodman and Gilman's, "The Pharmacological Basis
of Therapeutics", Tenth Edition, A. Gilman, J. Hardman and L.
Limbird, eds., McGraw-Hill Press, 155-173, 2001, which is
incorporated herein by reference in its entirety).
[0643] In certain other embodiments, methods are provided for using
the inventive implants and other surgical or medical devices coated
with (or otherwise adapted to release) compounds and compositions
of the present invention. In certain embodiments, methods are
provided for preventing restenosis, comprising inserting a stent
into an obstructed blood vessel, the stent having a generally
tubular structure, the surface of the structure being coated with
(or otherwise adapted to release) an inventive compound or
composition, such that the obstruction is eliminated and the
inventive compound or composition is delivered in amounts effective
to prevent restenosis and/or reduce the rate of restenosis. In
other embodiments, methods are provided for preventing restenosis,
comprising inserting a stent into an obstructed blood vessel, the
stent having a generally tubular structure, the surface of the
structure being coated with (or otherwise adapted to release) an
inventive compound or composition, such that the obstruction is
eliminated and the inventive compound or composition is delivered
in amounts effective to inhibit smooth muscle cell
proliferation.
[0644] Within other aspects of the present invention, methods are
provided for expanding the lumen of a body passageway, comprising
inserting a stent into the passageway, the stent having a generally
tubular structure, the surface of the structure being coated with
(or otherwise adapted to release) an inventive compound or
composition, such that the passageway is expanded. In certain
embodiments, the lumen of a body passageway is expanded in order to
eliminate a biliary, gastrointestinal, esophageal,
tracheal/bronchial, urethral and/or vascular obstruction.
[0645] In certain embodiments, methods are provided for eliminating
biliary obstructions, comprising inserting a biliary stent into a
biliary passageway, the stent having a generally tubular structure,
the surface of the structure being coated with (or otherwise
adapted to release) an inventive compound or composition, such that
the biliary obstruction is eliminated. Briefly, tumor overgrowth of
the common bile duct results in progressive cholestatic jaundice
which is incompatible with life. Generally, the biliary system
which drains bile from the liver into the duodenum is most often
obstructed by (1) a tumor composed of bile duct cells
(cholangiocarcinoma), (2) a tumor which invades the bile duct
(e.g., pancreatic carcinoma), or (3) a tumor which exerts extrinsic
pressure and compresses the bile duct (e.g., enlarged lymph nodes).
Both primary biliary tumors, as well as other tumors which cause
compression of the biliary tree may be treated utilizing stents
Implants and other surgical or medical devices may be coated with
(or otherwise adapted to release) compositions of the present
invention. One example of primary biliary tumors are
adenocarcinomas (which are also called Klatskin tumors when found
at the bifurcation of the common hepatic duct). These tumors are
also referred to as biliary carcinomas, choledocholangiocarcinomas,
or adenocarcinomas of the biliary system. Benign tumors which
affect the bile duct (e.g., adenoma of the biliary system), and, in
rare cases, squamous cell carcinomas of the bile duct and
adenocarcinomas of the gallbladder, may also cause compression of
the biliary tree and therefore, result in biliary obstruction.
Compression of the biliary tree is most commonly due to tumors of
the liver and pancreas which compress and therefore obstruct the
ducts. Most of the tumors from the pancreas arise from cells of the
pancreatic ducts. This is a highly fatal form of cancer (5% of all
cancer deaths; 26,000 new cases per year in the U.S.) with an
average of 6 months survival and a 1 year survival rate of only
10%. When these tumors are located in the head of the pancreas they
frequently cause biliary obstruction, and this detracts
significantly from the quality of life of the patient. While all
types of pancreatic tumors are generally referred to as "carcinoma
of the pancreas" there are histologic subtypes including:
adenocarcinoma, adenosquamous carcinoma, cystadenocarcinoma, and
acinar cell carcinoma. Hepatic tumors, as discussed above, may also
cause compression of the biliary tree, and therefore cause
obstruction of the biliary ducts.
[0646] In certain embodiments, a biliary stent is first inserted
into a biliary passageway in one of several ways: from the top end
by inserting a needle through the abdominal wall and through the
liver (a percutaneous transhepatic cholangiogram or "PTC"); from
the bottom end by cannulating the bile duct through an endoscope
inserted through the mouth, stomach, and duodenum (an endoscopic
retrograde cholangiogram or "ERCP"); or by direct incision during a
surgical procedure. In certain embodiments, a preinsertion
examination, PTC, ERCP, or direct visualization at the time of
surgery is performed to determine the appropriate position for
stent insertion. A guidewire is then advanced through the lesion,
and over this a delivery catheter is passed to allow the stent to
be inserted in its collapsed form. If the diagnostic exam was a
PTC, the guidewire and delivery catheter is inserted via the
abdominal wall, while if the original exam was an ERCP the stent
may be placed via the mouth. The stent is then positioned under
radiologic, endoscopic, or direct visual control taking particular
care to place it precisely across the narrowing in the bile duct.
The delivery catheter is then removed leaving the stent standing as
a scaffolding which holds the bile duct open. A further
cholangiogram may be performed to document that the stent is
appropriately positioned.
[0647] In certain embodiments, methods are provided for eliminating
esophageal obstructions, comprising inserting an esophageal stent
into an esophagus, the stent having a generally tubular structure,
the surface of the structure being coated with (or otherwise
adapted to release) an inventive compound or composition, such that
the esophageal obstruction is eliminated. Briefly, the esophagus is
the hollow tube which transports food and liquids from the mouth to
the stomach. Cancer of the esophagus or invasion by cancer arising
in adjacent organs (e.g., cancer of the stomach or lung) results in
the inability to swallow food or saliva. In certain embodiments, a
preinsertion examination, usually a barium swallow or endoscopy is
performed in order to determine the appropriate position for stent
insertion. A catheter or endoscope may then be positioned through
the mouth, and a guidewire is advanced through the blockage. A
stent delivery catheter is passed over the guidewire under
radiologic or endoscopic control, and a stent is placed precisely
across the narrowing in the esophagus. A post-insertion
examination, usually a barium swallow x-ray, may be utilized to
confirm appropriate positioning.
[0648] In certain embodiments, methods are provided for eliminating
colonic obstructions, comprising inserting a colonic stent into a
colon, the stent having a generally tubular structure, the surface
of the structure being coated with (or otherwise adapted to
release) an inventive compound or composition, such that the
colonic obstruction is eliminated. Briefly, the colon is the hollow
tube which transports digested food and waste materials from the
small intestines to the anus. Cancer of the rectum and/or colon or
invasion by cancer arising in adjacent organs (e.g., cancer of the
uterus, ovary, bladder) results in the inability to eliminate feces
from the bowel. In certain embodiments, a preinsertion examination,
usually a barium enema or colonoscopy is performed in order to
determine the appropriate position for stent insertion. A catheter
or endoscope may then be positioned through the anus, and a
guidewire is advanced through the blockage. A stent delivery
catheter is passed over the guidewire under radiologic or
endoscopic control, and a stent is placed precisely across the
narrowing in the colon or rectum. A post-insertion examination,
usually a barium enema x-ray, may be utilized to confirm
appropriate positioning.
[0649] In certain embodiments, methods are provided for eliminating
tracheal/bronchial obstructions, comprising inserting a
tracheal/bronchial stent into a trachea or bronchi, the stent
having a generally tubular structure, the surface of the structure
being coated with (or otherwise adapted to release) an inventive
compound or composition, such that the tracheal/bronchial
obstruction is eliminated. Briefly, the trachea and bronchi are
tubes which carry air from the mouth and nose to the lungs.
Blockage of the trachea by cancer, invasion by cancer arising in
adjacent organs (e.g., cancer of the lung), or collapse of the
trachea or bronchi due to chondromalacia (weakening of the
cartilage rings) results in inability to breathe. In certain
embodiments, preinsertion examination, usually an endoscopy, is
performed in order to determine the appropriate position for stent
insertion. A catheter or endoscope is then positioned through the
mouth, and a guidewire advanced through the blockage. A delivery
catheter is then passed over the guidewire in order to allow a
collapsed stent to be inserted. The stent is placed under
radiologic or endoscopic control in order to place it precisely
across the narrowing. The delivery catheter may then be removed
leaving the stent standing as a scaffold on its own. A
post-insertion examination, usually a bronchoscopy may be utilized
to confirm appropriate positioning.
[0650] In certain embodiments, methods are provided for eliminating
urethral obstructions, comprising inserting a urethral stent into a
urethra, the stent having a generally tubular structure, the
surface of the structure being coated with (or otherwise adapted to
release) an inventive compound or composition, such that the
urethral obstruction is eliminated. Briefly, the urethra is the
tube which drains the bladder through the penis. Extrinsic
narrowing of the urethra as it passes through the prostate, due to
hypertrophy of the prostate, occurs in virtually every man over the
age of 60 and causes progressive difficulty with urination. In
certain embodiments, a preinsertion examination, usually an
endoscopy or urethrogram is first performed in order to determine
the appropriate position for stent insertion, which is above the
external urinary sphincter at the lower end, and close to flush
with the bladder neck at the upper end. An endoscope or catheter is
then positioned through the penile opening and a guidewire advanced
into the bladder. A delivery catheter is then passed over the
guidewire in order to allow stent insertion. The delivery catheter
is then removed, and the stent expanded into place. A
post-insertion examination, usually endoscopy or retrograde
urethrogram, may be utilized to confirm appropriate position.
[0651] In certain embodiments, methods are provided for eliminating
vascular obstructions, comprising inserting a vascular stent into a
blood vessel, the stent having a generally tubular structure, the
surface of the structure being coated with (or otherwise adapted to
release) an inventive compound or composition, such that the
vascular obstruction is eliminated. Briefly, stents may be placed
in a wide array of blood vessels, both arteries and veins, to
prevent recurrent stenosis at the site of failed angioplasties, to
treat narrowings that would likely fail if treated with
angioplasty, and to treat post-surgical narrowings (e.g., dialysis
graft stenosis). Suitable sites include, but are not limited to,
the iliac, renal, and coronary arteries, the superior vena cava,
and in dialysis grafts. In certain embodiments, angiography is
first performed in order to localize the site for placement of the
stent. This is typically accomplished by injecting radiopaque
contrast through a catheter inserted into an artery or vein as an
x-ray is taken. A catheter may then be inserted either
percutaneously or by surgery into the femoral artery, brachial
artery, femoral vein, or brachial vein, and advanced into the
appropriate blood vessel by steering it through the vascular system
under fluoroscopic guidance. A stent may then be positioned across
the vascular stenosis. A post-insertion angiogram may also be
utilized in order to confirm appropriate positioning.
[0652] Furthermore, after formulation with an appropriate
pharmaceutically acceptable carrier in a desired dosage, the
pharmaceutical compositions of this invention can be administered
to humans and other animals orally, rectally, parenterally,
intracisternally, intravaginally, intraperitoneally, topically (as
by powders, ointments, or drops), bucally, as an oral or nasal
spray, or the like, depending on the severity of the infection
being treated. In certain embodiments, the compounds of the
invention may be administered at dosage levels of about 0.001 mg/kg
to about 50 mg/kg, from about 0.01 mg/kg to about 25 mg/kg, or from
about 0.1 mg/kg to about 10 mg/kg of subject body weight per day,
one or more times a day, to obtain the desired therapeutic effect.
It will also be appreciated that dosages smaller than 0.001 mg/kg
or greater than 50 mg/kg (for example 50-100 mg/kg) can be
administered to a subject. In certain embodiments, compounds are
administered orally or parenterally.
[0653] Liquid dosage forms for oral administration include, but are
not limited to, pharmaceutically acceptable emulsions,
microemulsions, solutions, suspensions, syrups and elixirs. In
addition to the active compounds, the liquid dosage forms may
contain inert diluents commonly used in the art such as, for
example, water or other solvents, solubilizing agents and
emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl
carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate,
propylene glycol, 1,3-butylene glycol, dimethylformamide, oils (in
particular, cottonseed, groundnut, corn, germ, olive, castor, and
sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene
glycols and fatty acid esters of sorbitan, and mixtures thereof.
Besides inert diluents, the oral compositions can also include
adjuvants such as wetting agents, emulsifying and suspending
agents, sweetening, flavoring, and perfuming agents.
[0654] Injectable preparations, for example, sterile injectable
aqueous or oleaginous suspensions may be formulated according to
the known art using suitable dispersing or wetting agents and
suspending agents. The sterile injectable preparation may also be a
sterile injectable solution, suspension or emulsion in a nontoxic
parenterally acceptable diluent or solvent, for example, as a
solution in 1,3-butanediol. Among the acceptable vehicles and
solvents that may be employed are water, Ringer's solution, U.S.P.
and isotonic sodium chloride solution. In addition, sterile, fixed
oils are conventionally employed as a solvent or suspending medium.
For this purpose any bland fixed oil can be employed including
synthetic mono- or diglycerides. In addition, fatty acids such as
oleic acid are used in the preparation of injectables.
[0655] The injectable formulations can be sterilized, for example,
by filtration through a bacterial-retaining filter, or by
incorporating sterilizing agents in the form of sterile solid
compositions which can be dissolved or dispersed in sterile water
or other sterile injectable medium prior to use.
[0656] In order to prolong the effect of a drug, it is often
desirable to slow the absorption of the drug from subcutaneous or
intramuscular injection. This may be accomplished by the use of a
liquid suspension or crystalline or amorphous material with poor
water solubility. The rate of absorption of the drug then depends
upon its rate of dissolution that, in turn, may depend upon crystal
size and crystalline form. Alternatively, delayed absorption of a
parenterally administered drug form is accomplished by dissolving
or suspending the drug in an oil vehicle. Injectable depot forms
are made by forming microencapsule matrices of the drug in
biodegradable polymers such as polylactide-polyglycolide. Depending
upon the ratio of drug to polymer and the nature of the particular
polymer employed, the rate of drug release can be controlled.
Examples of other biodegradable polymers include (poly(orthoesters)
and poly(anhydrides). Depot injectable formulations are also
prepared by entrapping the drug in liposomes or microemulsions
which are compatible with body tissues.
[0657] Compositions for rectal or vaginal administration are
preferably suppositories which can be prepared by mixing the
compounds of this invention with suitable non-irritating excipients
or carriers such as cocoa butter, polyethylene glycol or a
suppository wax which are solid at ambient temperature but liquid
at body temperature and therefore melt in the rectum or vaginal
cavity and release the active compound.
[0658] Solid dosage forms for oral administration include capsules,
tablets, pills, powders, and granules. In such solid dosage forms,
the active compound is mixed with at least one inert,
pharmaceutically acceptable excipient or carrier such as sodium
citrate or dicalcium phosphate and/or a) fillers or extenders such
as starches, lactose, sucrose, glucose, mannitol, and silicic acid,
b) binders such as, for example, carboxymethylcellulose, alginates,
gelatin, polyvinylpyrrolidinone, sucrose, and acacia, c) humectants
such as glycerol, d) disintegrating agents such as agar-agar,
calcium carbonate, potato or tapioca starch, alginic acid, certain
silicates, and sodium carbonate, e) solution retarding agents such
as paraffin, f) absorption accelerators such as quaternary ammonium
compounds, g) wetting agents such as, for example, cetyl alcohol
and glycerol monostearate, h) absorbents such as kaolin and
bentonite clay, and i) lubricants such as talc, calcium stearate,
magnesium stearate, solid polyethylene glycols, sodium lauryl
sulfate, and mixtures thereof. In the case of capsules, tablets and
pills, the dosage form may also comprise buffering agents.
[0659] Solid compositions of a similar type may also be employed as
fillers in soft and hard-filled gelatin capsules using such
excipients as lactose or milk sugar as well as high molecular
weight polyethylene glycols and the like. The solid dosage forms of
tablets, dragees, capsules, pills, and granules can be prepared
with coatings and shells such as enteric coatings and other
coatings well known in the pharmaceutical formulating art. They may
optionally contain opacifying agents and can also be of a
composition that they release the active ingredient(s) only, or
preferentially, in a certain part of the intestinal tract,
optionally, in a delayed manner. Examples of embedding compositions
that can be used include polymeric substances and waxes. Solid
compositions of a similar type may also be employed as fillers in
soft and hard-filled gelatin capsules using such excipients as
lactose or milk sugar as well as high molecular weight polethylene
glycols and the like.
[0660] The active compounds can also be in micro-encapsulated form
with one or more excipients as noted above. The solid dosage forms
of tablets, dragees, capsules, pills, and granules can be prepared
with coatings and shells such as enteric coatings, release
controlling coatings and other coatings well known in the
pharmaceutical formulating art. In such solid dosage forms the
active compound may be admixed with at least one inert diluent such
as sucrose, lactose and starch. Such dosage forms may also
comprise, as in normal practice, additional substances other than
inert diluents, e.g., tableting lubricants and other tableting aids
such as magnesium stearate and microcrystalline cellulose. In the
case of capsules, tablets and pills, the dosage forms may also
comprise buffering agents. They may optionally contain opacifying
agents and can also be of a composition that they release the
active ingredient(s) only, or preferentially, in a certain part of
the intestinal tract, optionally, in a delayed manner. Examples of
embedding compositions which can be used include polymeric
substances and waxes.
[0661] Dosage forms for topical or transdermal administration of a
compound of this invention include ointments, pastes, creams,
lotions, gels, powders, solutions, sprays, inhalants or patches.
The active component is admixed under sterile conditions with a
pharmaceutically acceptable carrier and any needed preservatives or
buffers as may be required. Ophthalmic formulation, ear drops, and
eye drops are also contemplated as being within the scope of this
invention. Additionally, the present invention contemplates the use
of transdermal patches, which have the added advantage of providing
controlled delivery of a compound to the body. Such dosage forms
are made by dissolving or dispensing the compound in the proper
medium. Absorption enhancers can also be used to increase the flux
of the compound across the skin. The rate can be controlled by
either providing a rate controlling membrane or by dispersing the
compound in a polymer matrix or gel.
[0662] It will also be appreciated that the compounds and
pharmaceutical compositions of the present invention can be
formulated and employed in combination therapies, that is, the
compounds and pharmaceutical compositions can be formulated with or
administered concurrently with, prior to, or subsequent to, one or
more other desired therapeutics or medical procedures. The
particular combination of therapies (therapeutics or procedures) to
employ in a combination regimen will take into account
compatibility of the desired therapeutics and/or procedures and the
desired therapeutic effect to be achieved. It will also be
appreciated that the therapies employed may achieve a desired
effect for the same disorder (for example, an inventive compound
may be administered concurrently with another anticancer agent), or
they may achieve different effects (e.g., control of any adverse
effects). For example, other therapies or anticancer agents that
may be used in combination with the inventive anticancer agents of
the present invention include surgery, radiotherapy (in but a few
examples, .gamma.-radiation, neutron beam radiotherapy, electron
beam radiotherapy, proton therapy, brachytherapy, and systemic
radioactive isotopes, to name a few), endocrine therapy, biologic
response modifiers (interferons, interleukins, and tumor necrosis
factor (TNF) to name a few), hyperthermia and cryotherapy, agents
to attenuate any adverse effects (e.g., antiemetics), and other
approved chemotherapeutic drugs, including, but not limited to,
alkylating drugs (mechlorethamine, chlorambucil, Cyclophosphamide,
Melphalan, Ifosfamide), antimetabolites (Methotrexate), purine
antagonists and pyrimidine antagonists (6-Mercaptopurine,
5-Fluorouracil, Cytarabile, Gemcitabine), spindle poisons
(Vinblastine, Vincristine, Vinorelbine, Paclitaxel),
podophyllotoxins (Etoposide, Irinotecan, Topotecan), antibiotics
(Doxorubicin, Bleomycin, Mitomycin), nitrosoureas (Carmustine,
Lomustine), inorganic ions (Cisplatin, Carboplatin), enzymes
(Asparaginase), and hormones (Tamoxifen, Leuprolide, Flutamide, and
Megestrol), to name a few. For a more comprehensive discussion of
updated cancer therapies see, The Merck Manual, Seventeenth Ed.
1999, the entire contents of which are hereby incorporated by
reference. See also the National Cancer Institute (NCI) website
(www.nci.nih.gov) and the Food and Drug Administration (FDA)
website for a list of the FDA approved oncology drugs
(www.fda.gov/cder/cancer/druglistframe--See Appendix A).
[0663] In certain embodiments, the pharmaceutical compositions of
the present invention further comprise one or more additional
therapeutically active ingredients (e.g., chemotherapeutic and/or
palliative). For purposes of the invention, the term "Palliative"
refers to treatment that is focused on the relief of symptoms of a
disease and/or side effects of a therapeutic regimen, but is not
curative. For example, palliative treatment encompasses
painkillers, antinausea medications and anti-sickness drugs. In
addition, chemotherapy, radiotherapy and surgery can all be used
palliatively (that is, to reduce symptoms without going for cure;
e.g., for shrinking tumors and reducing pressure, bleeding, pain
and other symptoms of cancer).
Treatment Kits
[0664] In other embodiments, the present invention relates to a kit
for conveniently and effectively carrying out the methods in
accordance with the present invention. In general, the
pharmaceutical pack or kit comprises one or more containers filled
with one or more of the ingredients of the pharmaceutical
compositions of the invention. Such kits are especially suited for
the delivery of solid oral forms such as tablets or capsules. Such
a kit preferably includes a number of unit dosages, and may also
include a card having the dosages oriented in the order of their
intended use. If desired, a memory aid can be provided, for example
in the form of numbers, letters, or other markings or with a
calendar insert, designating the days in the treatment schedule in
which the dosages can be administered. Alternatively, placebo
dosages, or calcium dietary supplements, either in a form similar
to or distinct from the dosages of the pharmaceutical compositions,
can be included to provide a kit in which a dosage is taken every
day. Optionally associated with such container(s) can be a notice
in the form prescribed by a governmental agency regulating the
manufacture, use or sale of pharmaceutical products, which notice
reflects approval by the agency of manufacture, use or sale for
human administration.
EQUIVALENTS
[0665] The representative examples that follow are intended to help
illustrate the invention, and are not intended to, nor should they
be construed to, limit the scope of the invention. Indeed, various
modifications of the invention and many further embodiments
thereof, in addition to those shown and described herein, will
become apparent to those skilled in the art from the full contents
of this document, including the examples which follow and the
references to the scientific and patent literature cited herein. It
should further be appreciated that the contents of those cited
references are incorporated herein by reference to help illustrate
the state of the art.
[0666] The following examples contain important additional
information, exemplification and guidance that can be adapted to
the practice of this invention in its various embodiments and the
equivalents thereof.
EXEMPLIFICATION
[0667] The practitioner has a well-established literature of
peptide chemistry to draw upon, in combination with the information
contained herein, for guidance on synthetic strategies, protecting
groups, and other materials and methods useful for the synthesis of
the compounds of this invention.
[0668] The various references cited herein provide helpful
background information on preparing compounds similar to the
inventive compounds described herein or relevant intermediates, as
well as information on formulation, uses, and administration of
such compounds which may be of interest.
[0669] Moreover, the practitioner is directed to the specific
guidance and examples provided in this document relating to various
exemplary compounds and intermediates thereof.
[0670] The compounds of this invention and their preparation can be
understood further by the examples that illustrate some of the
processes by which these compounds are prepared or used. It will be
appreciated, however, that these examples do not limit the
invention. Variations of the invention, now known or further
developed, are considered to fall within the scope of the present
invention as described herein and as hereinafter claimed.
[0671] According to the present invention, any available techniques
can be used to make or prepare the inventive compounds or
compositions including them. For example, a variety of solution
phase synthetic methods such as those discussed in detail below may
be used. Alternatively or additionally, the inventive compounds may
be prepared using any of a variety combinatorial techniques,
parallel synthesis and/or solid phase synthetic methods known in
the art.
[0672] It will be appreciated as described below, that a variety of
inventive compounds can be synthesized according to the methods
described herein. The starting materials and reagents used in
preparing these compounds are either available from commercial
suppliers such as Aldrich Chemical Company (Milwaukee, Wis.),
Bachem (Torrance, Calif.), Sigma (St. Louis, Mo.), or are prepared
by methods well known to a person of ordinary skill in the art
following procedures described in such references as Fieser and
Fieser 1991, "Reagents for Organic Synthesis", vols 1-17, John
Wiley and Sons, New York, N.Y., 1991; Rodd 1989 "Chemistry of
Carbon Compounds", vols. 1-5 and supps, Elsevier Science
Publishers, 1989; "Organic Reactions", vols 1-40, John Wiley and
Sons, New York, N.Y., 1991; March 2001, "Advanced Organic
Chemistry", 5th ed. John Wiley and Sons, New York, N.Y.; and Larock
1990, "Comprehensive Organic Transformations: A Guide to Functional
Group Preparations", 2.sup.nd ed. VCH Publishers. These schemes are
merely illustrative of some methods by which the compounds of this
invention can be synthesized, and various modifications to these
schemes can be made and will be suggested to a person of ordinary
skill in the art having regard to this disclosure.
[0673] The starting materials, intermediates, and compounds of this
invention may be isolated and purified using conventional
techniques, including filtration, distillation, crystallization,
chromatography, and the like. They may be characterized using
conventional methods, including physical constants and spectral
data.
[0674] Certain exemplary compounds of the invention are listed
below and are referred to by compound number as indicated.
TABLE-US-00001 Compound Structure ER-803840 (HEMIASTERLIN)
##STR00099## ER-803887 ##STR00100## ER-803888 ##STR00101##
ER-803889 ##STR00102## ER-803890 ##STR00103## ER-803921
##STR00104## ER-803995 ##STR00105## ER-803996 ##STR00106##
ER-803997 Higher Rf diastereomer ##STR00107## ER-803998 Lower Rf
diastereomer ##STR00108## ER-803999 ##STR00109## ER-804000
##STR00110## ER-804001 ##STR00111## ER-804002 ##STR00112##
ER-804332 ##STR00113## ER-804333 ##STR00114## ER-804334
##STR00115## ER-804635 ##STR00116## ER-804636 ##STR00117##
ER-804762 ##STR00118## ER-805206 ##STR00119## ER-805230
##STR00120## ER-805231 ##STR00121## ER-805257 ##STR00122##
ER-805258 ##STR00123## ER-805268 ##STR00124## ER-805316
##STR00125## ER-805324 ##STR00126## ER-805532 ##STR00127##
ER-805590 ##STR00128## ER-805594 ##STR00129## ER-805599
##STR00130## ER-805697 ##STR00131## ER-805701 ##STR00132##
ER-805711 ##STR00133## ER-805713 ##STR00134## ER-805734
##STR00135## ER-805735 ##STR00136## ER-805736 ##STR00137##
ER-805738 ##STR00138## ER-805847 ##STR00139## ER-805865
##STR00140## ER-805876 ##STR00141## ER-805913 ##STR00142##
ER-805914 ##STR00143## ER-805925 ##STR00144## ER-805938
##STR00145## ER-805968 ##STR00146## ER-805974 ##STR00147##
ER-806004 ##STR00148## ER-806005 ##STR00149## ER-806021
##STR00150## ER-806022 ##STR00151## ER-806023 ##STR00152##
ER-806031 ##STR00153## ER-806032 ##STR00154## ER-806073
##STR00155## ER-806085 ##STR00156## ER-806086 ##STR00157##
ER-806105 ##STR00158## ER-806110 ##STR00159## ER-806119
##STR00160## ER-806135 ##STR00161## ER-806147 ##STR00162##
ER-806180 ##STR00163## ER-806223 ##STR00164## ER-806318
##STR00165## ER-806356 ##STR00166## ER-806371 ##STR00167##
ER-806395 ##STR00168## ER-806396 ##STR00169## ER-806397
##STR00170## ER-806398 ##STR00171## ER-806399 ##STR00172##
ER-806400 ##STR00173## ER-806409 ##STR00174## ER-806418
##STR00175## ER-806713 ##STR00176## ER-806717 ##STR00177##
ER-806718 ##STR00178## ER-806735 ##STR00179## ER-806748
##STR00180## ER-806749 ##STR00181## ER-806791 ##STR00182##
ER-806792 ##STR00183## ER-806793 ##STR00184## ER-806794
##STR00185## ER-806822 ##STR00186## ER-806823 ##STR00187##
ER-806824 ##STR00188## ER-806825 ##STR00189## ER-806830
##STR00190## ER-806831 ##STR00191## ER-806853 ##STR00192##
ER-806854 ##STR00193## ER-806861 ##STR00194## ER-806862
##STR00195## ER-806863 ##STR00196## ER-806864 ##STR00197##
ER-806865 ##STR00198## ER-806866 ##STR00199## ER-806867
##STR00200## ER-806868 ##STR00201## ER-806869 ##STR00202##
ER-806870 ##STR00203## ER-806871 ##STR00204## ER-806879
##STR00205## ER-806880 ##STR00206## ER-806881 ##STR00207##
ER-806882 ##STR00208## ER-806920 ##STR00209## ER-806921
##STR00210## ER-806922 ##STR00211## ER-806923 ##STR00212##
ER-806924 ##STR00213## ER-806925 ##STR00214## ER-807000
##STR00215## ER-807001 ##STR00216## ER-807002 ##STR00217##
ER-807077 single diastereomer ##STR00218## ER-807078 single
diastereomer ##STR00219## ER-807079 ##STR00220## ER-807080
##STR00221## ER-807081 single diastereomer ##STR00222##
ER-807096 ##STR00223## ER-807101 ##STR00224## ER-807102
##STR00225## ER-807133 ##STR00226## ER-807134 ##STR00227##
ER-807135 ##STR00228## ER-807145 ##STR00229## ER-807146
##STR00230## ER-807147 ##STR00231## ER-807148 ##STR00232##
ER-807160 ##STR00233## ER-807161 ##STR00234## ER-807180
##STR00235## ER-807192 ##STR00236## ER-807193 ##STR00237##
ER-807194 ##STR00238## ER-807195 ##STR00239## ER-807209
##STR00240## ER-807210 ##STR00241## ER-807212 ##STR00242##
ER-807213 ##STR00243## ER-807214 ##STR00244## ER-807215
##STR00245## ER-807217 ##STR00246## ER-807218 ##STR00247##
ER-807219 ##STR00248## ER-807222 ##STR00249## ER-807226
##STR00250## ER-807228 ##STR00251## ER-807229 ##STR00252##
ER-807230 ##STR00253## ER-807231 ##STR00254## ER-807232
##STR00255## ER-807237 ##STR00256## ER-807238 ##STR00257##
ER-807246 ##STR00258## ER-807247 ##STR00259## ER-807248
##STR00260## ER-807249 ##STR00261## ER-807303 ##STR00262##
ER-807324 ##STR00263## ER-807328 ##STR00264## ER-807329
##STR00265## ER-807332 ##STR00266## ER-807334 ##STR00267##
ER-807339 ##STR00268## ER-807341 ##STR00269## ER-807342
##STR00270## ER-807343 ##STR00271## ER-807344 ##STR00272##
ER-807345 ##STR00273## ER-807346 ##STR00274## ER-807347
##STR00275## ER-807352 ##STR00276## ER-807353 ##STR00277##
ER-807354 ##STR00278## ER-807355 ##STR00279## ER-807360
##STR00280## ER-807361 ##STR00281## R-807362 ##STR00282## ER-807364
##STR00283## ER-807365 ##STR00284## ER-807366 ##STR00285##
ER-807370 ##STR00286## ER-807371 ##STR00287## ER-807374
##STR00288## ER-807375 ##STR00289## ER-807393 ##STR00290##
ER-807413 ##STR00291## ER-807414 ##STR00292## ER-807417
##STR00293## ER-807418 ##STR00294## ER-807419 ##STR00295##
ER-807420 ##STR00296## ER-807421 ##STR00297## ER-807431
##STR00298## ER-807461 ##STR00299## ER-807470 single diastereomer
##STR00300## ER-807471 single diastereomer ##STR00301## ER-807480
single diastereomer ##STR00302## ER-807481 single diastereomer
##STR00303## ER-807482 single diastereomer ##STR00304## ER-807483
single diastereomer ##STR00305## ER-807484 ##STR00306## ER-807487
##STR00307## ER-807494 ##STR00308## ER-807495 ##STR00309##
ER-807499 ##STR00310## ER-807500 ##STR00311## ER-807501
##STR00312## ER-807502 ##STR00313## ER-807503 ##STR00314##
ER-807504 ##STR00315## ER-807529 ##STR00316## ER-807530
##STR00317## ER-807533 ##STR00318## ER-807534 ##STR00319##
ER-807535 ##STR00320## ER-807540 ##STR00321## ER-807541
##STR00322## ER-807542 ##STR00323## ER-807575 ##STR00324##
ER-807576 ##STR00325## ER-807577 ##STR00326## ER-807602
##STR00327## ER-807603 ##STR00328## ER-807619 ##STR00329##
ER-807620 ##STR00330## ER-807621 ##STR00331## ER-807622
##STR00332## ER-807625 ##STR00333## ER-807626 ##STR00334##
ER-807739 ##STR00335## ER-807740 ##STR00336## ER-807742
##STR00337## ER-807743 ##STR00338## ER-807744 ##STR00339##
ER-807745 ##STR00340## ER-807760 ##STR00341## ER-807761
##STR00342## ER-807796 Trans substituents on the piperidine ring,
but absolute stereochemistry is unknown. Single diastereomer.
##STR00343## ER-807797 Trans substituents on the piperidine ring,
but absolute stereochemistry is unknown. Single diastereomer.
##STR00344## ER-807798 ##STR00345## ER-807799 Mixture of two
diastereomers ##STR00346##
ER-807800 ##STR00347## ER-807801 ##STR00348## ER-807802
##STR00349## ER-807803 ##STR00350## ER-807804 ##STR00351##
ER-807805 ##STR00352## ER-807806 ##STR00353## ER-807807
##STR00354## ER-807808 ##STR00355## ER-807809 ##STR00356##
ER-807810 ##STR00357## ER-807811 ##STR00358## ER-807812
##STR00359## ER-807820 single diastereomer ##STR00360## ER-807821
single diastereomer ##STR00361## ER-807829 ##STR00362## ER-807830
##STR00363## ER-807831 ##STR00364## ER-807832 ##STR00365##
ER-807833 ##STR00366## ER-807839 ##STR00367## ER-807840
##STR00368## ER-807842 ##STR00369## ER-807844 ##STR00370##
ER-807846 ##STR00371## ER-807850 ##STR00372## ER-807860
##STR00373## ER-807861 ##STR00374## ER-807863 Cis-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer. ##STR00375## ER-807864 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer. ##STR00376## ER-807874 ##STR00377## ER-807875
##STR00378## ER-807877 Cis-substituents on the piperidine ring. Two
diastereomers (4:1). ##STR00379## ER-807880 ##STR00380## ER-807881
##STR00381## ER-807882 ##STR00382## ER-807883 ##STR00383##
ER-807884 ##STR00384## ER-807885 ##STR00385## ER-807886
##STR00386## ER-807888 ##STR00387## ER-807889 ##STR00388##
ER-807890 ##STR00389## ER-807891 ##STR00390## ER-807899
##STR00391## ER-807900 ##STR00392## ER-807902 ##STR00393##
ER-807904 ##STR00394## ER-807905 ##STR00395## ER-807906
##STR00396## ER-807907 ##STR00397## ER-807908 ##STR00398##
ER-807909 ##STR00399## ER-807911 ##STR00400## ER-807944
##STR00401## ER-807945 ##STR00402## ER-807947 ##STR00403##
ER-807948 ##STR00404## ER-807949 ##STR00405## ER-807950
##STR00406## ER-807951 ##STR00407## ER-807953 ##STR00408##
ER-807954 ##STR00409## ER-807959 Cis-substituents on the piperidine
ring, but absolute stereochemistry is unknown. Single diastereomer.
##STR00410## ER-807960 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer.
##STR00411## ER-807961 ##STR00412## ER-807963 ##STR00413##
ER-807973 ##STR00414## ER-807974 ##STR00415## ER-807975
##STR00416## ER-807981 ##STR00417## ER-807982 ##STR00418##
ER-807983 ##STR00419## ER-807986 ##STR00420## ER-807987
##STR00421## ER-807988 ##STR00422## ER-807989 ##STR00423##
ER-807990 ##STR00424## ER-807991 ##STR00425## ER-807992
##STR00426## ER-807994 ##STR00427## ER-807995 ##STR00428##
ER-807996 ##STR00429## ER-807997 ##STR00430## ER-807998
##STR00431## ER-807999 ##STR00432## ER-808000 ##STR00433##
ER-808001 ##STR00434## ER-808002 ##STR00435## ER-808007
##STR00436## ER-808008 ##STR00437## ER-808010 ##STR00438##
ER-808011 ##STR00439## ER-808012 ##STR00440## ER-808013
##STR00441## ER-808029 ##STR00442## ER-808030 ##STR00443##
ER-808031 ##STR00444## ER-808032 ##STR00445## ER-808033
##STR00446## ER-808034 ##STR00447## ER-808035 ##STR00448##
ER-808037 ##STR00449## ER-808038 ##STR00450## ER-808057
##STR00451## ER-808058 ##STR00452## ER-808059 ##STR00453##
ER-808060 ##STR00454## ER-808061 ##STR00455## ER-808062
##STR00456## ER-808063 ##STR00457## ER-808065 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer. ##STR00458## ER-808066 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00459## ER-808067 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00460## ER-808068 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00461## ER-808071 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00462## ER-808072 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00463## ER-808073 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00464## ER-808074 Trans-substituents on
the piperidine ring, but absolute stereochemistry is unknown.
Single diastereomer ##STR00465##
ER-808075 ##STR00466## ER-808076 ##STR00467## ER-808077
##STR00468## ER-808108 ##STR00469## ER-808109 ##STR00470##
ER-808110 ##STR00471## ER-808111 ##STR00472## ER-808112
##STR00473## ER-808113 ##STR00474## ER-808114 ##STR00475##
ER-808115 ##STR00476## ER-808116 ##STR00477## ER-808117
##STR00478## ER-808118 ##STR00479## ER-808119 ##STR00480##
ER-808120 ##STR00481## ER-808121 ##STR00482## ER-808122
##STR00483## ER-808123 ##STR00484## ER-808124 ##STR00485##
ER-808125 ##STR00486## ER-808126 Absolute stereochemistry is
unknown. Single diastereomer ##STR00487## ER-808131 ##STR00488##
ER-808139 ##STR00489## ER-808140 ##STR00490## ER-808141
##STR00491## ER-808142 ##STR00492## ER-808143 ##STR00493##
ER-808144 ##STR00494## ER-808145 ##STR00495## ER-808146
##STR00496## ER-808147 ##STR00497## ER-808148 ##STR00498##
ER-808149 ##STR00499## ER-808150 ##STR00500## ER-808161
##STR00501## ER-808166 ##STR00502## ER-808167 ##STR00503##
ER-808168 ##STR00504## ER-808169 ##STR00505## ER-808170
##STR00506## ER-808171 ##STR00507## ER-808172 ##STR00508##
ER-808173 ##STR00509## ER-808174 ##STR00510## ER-808175
##STR00511## ER-808176 ##STR00512## ER-808177 ##STR00513##
ER-808178 ##STR00514## ER-808179 ##STR00515## ER-808180
##STR00516## ER-808181 ##STR00517## ER-808182 ##STR00518##
ER-808183 ##STR00519## ER-808189 ##STR00520## ER-808190
##STR00521## ER-808191 ##STR00522## ER-808192 ##STR00523##
ER-808193 ##STR00524## ER-808194 ##STR00525## ER-808195
##STR00526## ER-808196 ##STR00527## ER-808197 ##STR00528##
ER-808198 ##STR00529## ER-808199 ##STR00530## ER-808200
##STR00531## ER-808201 ##STR00532## ER-808202 ##STR00533##
ER-808203 ##STR00534## ER-808204 Cis-substituents on the piperidine
ring, but absolute stereochemistry is unknown. Single diastereomer
##STR00535## ER-808205 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00536## ER-808206 ##STR00537## ER-808207 ##STR00538##
ER-808208 ##STR00539## ER-808209 ##STR00540## ER-808210
##STR00541## ER-808211 ##STR00542## ER-808212 ##STR00543##
ER-808213 ##STR00544## ER-808214 ##STR00545## ER-808215
##STR00546## ER-808216 ##STR00547## ER-808217 ##STR00548##
ER-808218 ##STR00549## ER-808219 ##STR00550## ER-808220
##STR00551## ER-808221 ##STR00552## ER-808222 ##STR00553##
ER-808223 ##STR00554## ER-808224 ##STR00555## ER-808225
##STR00556## ER-808226 ##STR00557## ER-808248 ##STR00558##
ER-808249 ##STR00559## ER-808251 ##STR00560## ER-808253
##STR00561## ER-808292 ##STR00562## ER-808293 ##STR00563##
ER-808294 ##STR00564## ER-808295 ##STR00565## ER-808296
##STR00566## ER-808297 ##STR00567## ER-808298 ##STR00568##
ER-808299 ##STR00569## ER-808300 ##STR00570## ER-808301-
##STR00571## ER-808302 ##STR00572## ER-808303 ##STR00573##
ER-808304 ##STR00574## ER-808305 ##STR00575## ER-808306
##STR00576## ER-808307 ##STR00577## ER-808308 ##STR00578##
ER-808309 ##STR00579## ER-808323 ##STR00580## ER-808324
##STR00581## ER-808325 ##STR00582## ER-808326 ##STR00583##
ER-808328 ##STR00584## ER-808329 ##STR00585## ER-808330
##STR00586## ER-808331 ##STR00587## ER-808332 ##STR00588##
ER-808333 ##STR00589##
ER-808334 ##STR00590## ER-808335 ##STR00591## ER-808336
##STR00592## ER-808337 ##STR00593## ER-808338 ##STR00594##
ER-808339 ##STR00595## ER-808340 ##STR00596## ER-808341
##STR00597## ER-808342 ##STR00598## ER-808343 ##STR00599##
ER-808344 ##STR00600## ER-808345 ##STR00601## ER-808357 single
diastereomer ##STR00602## ER-808358 single diastereomer
##STR00603## ER-808359 single diastereomer ##STR00604## ER-808366
single diastereomer ##STR00605## ER-808367 ##STR00606## ER-808368
##STR00607## ER-808383 ##STR00608## ER-808384 ##STR00609##
ER-808389 ##STR00610## ER-808390 ##STR00611## ER-808391
##STR00612## ER-808392 ##STR00613## ER-808393 ##STR00614##
ER-808394 ##STR00615## ER-808395 ##STR00616## ER-808396
##STR00617## ER-808397 ##STR00618## ER-808398 ##STR00619##
ER-808399 ##STR00620## ER-808400 ##STR00621## ER-808401
##STR00622## ER-808402 ##STR00623## ER-808403 ##STR00624##
ER-808404 ##STR00625## ER-808433 ##STR00626## ER-808434
##STR00627## ER-808435 ##STR00628## ER-808436 ##STR00629##
ER-808437 ##STR00630## ER-808447 Cis-substituents on the piperidine
ring, but absolute stereochemistry is unknown. Single diastereomer
##STR00631## ER-808448 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00632## ER-808449 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00633## ER-808450 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00634## ER-808451 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00635## ER-808452 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00636## ER-808453 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00637## ER-808454 Cis-substituents on the piperidine ring, but
absolute stereochemistry is unknown. Single diastereomer
##STR00638## ER-808475 Single diastereomer ##STR00639## ER-808476
Single diastereomer ##STR00640## ER-808477 Single diastereomer
##STR00641## ER-808478 Single diastereomer ##STR00642## ER-808479
##STR00643## ER-808480 ##STR00644## ER-808481 ##STR00645##
ER-808482 ##STR00646## ER-808483 ##STR00647## ER-808484
##STR00648## ER-808485 ##STR00649## ER-808486 ##STR00650##
ER-808487 ##STR00651## ER-808488 ##STR00652## ER-808489
##STR00653## ER-808490 ##STR00654## ER-808491 Single diastereomer
##STR00655## ER-808492 Single diastereomer ##STR00656## ER-808493
Single diastereomer ##STR00657## ER-808494 Single diastereomer
##STR00658## ER-808495 ##STR00659## ER-808552 ##STR00660##
ER-808553 ##STR00661## ER-808563 ##STR00662## ER-808564
##STR00663## ER-808565 ##STR00664## ER-808566 ##STR00665##
ER-808567 ##STR00666## ER-808568 ##STR00667## ER-808609
##STR00668## ER-808610 ##STR00669## ER-808656 Single diastereomer
##STR00670## ER-808662 Single diastereomer ##STR00671## ER-808674
##STR00672## ER-808676 ##STR00673## ER-808677 ##STR00674##
ER-808678 ##STR00675## ER-808679 ##STR00676## ER-808680
##STR00677## ER-808681 ##STR00678## ER-808682 ##STR00679##
ER-808683 ##STR00680## ER-808684 ##STR00681## ER-808685
##STR00682## ER-808686 ##STR00683## ER-808687 ##STR00684##
ER-808688 ##STR00685## ER-808689 ##STR00686## ER-808690
##STR00687## ER-808693 ##STR00688## ER-808694 ##STR00689##
ER-808695 ##STR00690## ER-808696 ##STR00691## ER-808697
##STR00692## ER-808698 ##STR00693## ER-808699 ##STR00694##
ER-808700 ##STR00695## ER-808706 Single diastereomer ##STR00696##
ER-808707 Single diastereomer ##STR00697## ER-808708 Single
diastereomer ##STR00698## ER-80870 Single diastereomer ##STR00699##
ER-808710 Single diastereomer ##STR00700## ER-808731 ##STR00701##
ER-808732 ##STR00702## ER-808774 Single diastereomer ##STR00703##
ER-808775 Single diastereomer ##STR00704## ER-808777 Single
diastereomer ##STR00705## ER-808779 Single diastereomer
##STR00706## ER-808780 Single diastereomer ##STR00707## ER-808815
Single diastereomer ##STR00708## ER-808816 Single diastereomer
##STR00709## ER-808817 Single diastereomer ##STR00710## ER-808818
Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00711##
ER-808819 Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00712##
ER-808820 Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00713##
ER-808821 Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00714##
ER-808822 Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00715##
ER-808823 Cis-substituents on the piperidine ring, but absolute
stereochemistry is unknown. Single diastereomer ##STR00716##
ER-808824 ##STR00717## ER-808825 ##STR00718## ER-808826 Single
diastereomer ##STR00719## ER-80882 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer7 ##STR00720## ER-808828 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer ##STR00721## ER-808829 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer ##STR00722## ER-808830 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer ##STR00723## ER-808831 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer ##STR00724## ER-808832 Cis-substituents on the
piperidine ring, but absolute stereochemistry is unknown. Single
diastereomer ##STR00725## ER-808861 ##STR00726## ER-808862
##STR00727## ER-808863 ##STR00728## ER-808864 ##STR00729##
ER-808865 ##STR00730## ER-808866 ##STR00731## ER-808867
##STR00732## ER-808868 ##STR00733## ER-808869 ##STR00734##
ER-808870 ##STR00735## ER-808871 ##STR00736## ER-808872
##STR00737## ER-808873 ##STR00738## ER-808874 ##STR00739##
ER-808875 ##STR00740## ER-808876 ##STR00741## ER-808877
##STR00742## ER-808878 ##STR00743## ER-808879 ##STR00744##
ER-808880 ##STR00745## ER-808881 ##STR00746## ER-808882
##STR00747## ER-808883 ##STR00748## ER-808884 ##STR00749##
ER-808885 ##STR00750## ER-808886 ##STR00751## ER-808887
##STR00752## ER-808888 ##STR00753## ER-808889 ##STR00754##
ER-808890 ##STR00755## ER-808891 ##STR00756## ER-808892
##STR00757## ER-808893 ##STR00758## ER-808894 ##STR00759##
ER-808895 ##STR00760## ER-808896 ##STR00761## ER-808897
##STR00762## ER-808898 ##STR00763## ER-808899 ##STR00764##
ER-808900 ##STR00765## ER-808901 ##STR00766## ER-808902
##STR00767## ER-808903 ##STR00768## ER-808904 ##STR00769##
ER-808905 ##STR00770## ER-808906 ##STR00771## ER-808907
##STR00772## ER-808908 ##STR00773## ER-808909 ##STR00774##
ER-808910 ##STR00775## ER-808911 ##STR00776## ER-808912
##STR00777## ER-808913 ##STR00778## ER-808914 ##STR00779##
ER-808915 ##STR00780## ER-808916 ##STR00781## ER-808917
##STR00782## ER-808918 ##STR00783## ER-808919 ##STR00784##
ER-808920 ##STR00785## ER-808921 ##STR00786## ER-808922
##STR00787## ER-808923 ##STR00788## ER-808987 ##STR00789##
ER-808988 ##STR00790## ER-808990 ##STR00791## ER-809040 Single
diastereomer ##STR00792## ER-809041 ##STR00793## ER-809043
##STR00794## ER-809044 ##STR00795## ER-809045 Single diastereomer
##STR00796## ER-809046 ##STR00797## ER-809054 ##STR00798##
ER-809055 ##STR00799## ER-809056 ##STR00800## ER-809057
##STR00801## ER-809058 ##STR00802## ER-809059 ##STR00803##
ER-809060 ##STR00804## ER-809061 ##STR00805## ER-809062
##STR00806## ER-809063 ##STR00807## ER-809064 ##STR00808##
ER-809065 ##STR00809## ER-809066 ##STR00810## ER-809067
##STR00811## ER-809068 ##STR00812## ER-809069 ##STR00813##
ER-809070 ##STR00814## ER-809071 ##STR00815## ER-809072
##STR00816## ER-809073 ##STR00817## ER-809074 ##STR00818##
ER-809075 ##STR00819## ER-809076 ##STR00820## ER-809077
##STR00821## ER-809078 ##STR00822## ER-809079 ##STR00823##
ER-809080 ##STR00824## ER-809081 ##STR00825## ER-809082
##STR00826## ER-809083 ##STR00827## ER-809084 ##STR00828##
ER-809085 ##STR00829## ER-809086 ##STR00830##
ER-809087 ##STR00831## ER-809088 ##STR00832## ER-809089
##STR00833## ER-809090 ##STR00834## ER-809091 ##STR00835##
ER-809092 ##STR00836## ER-809093 ##STR00837## ER-809094
##STR00838## ER-809095 ##STR00839## ER-809096 ##STR00840##
ER-809097 ##STR00841## ER-809098 ##STR00842## ER-809099
##STR00843## ER-809100 ##STR00844## ER-809101 ##STR00845##
ER-809102 ##STR00846## ER-809103 ##STR00847## ER-809104
##STR00848## ER-809105 ##STR00849## ER-809106 ##STR00850##
ER-809107 ##STR00851## ER-809108 ##STR00852## ER-809109
##STR00853## ER-809110 ##STR00854## ER-809111 ##STR00855##
ER-809112 ##STR00856## ER-809113 ##STR00857## ER-809114
##STR00858## ER-809115 ##STR00859## ER-809116 ##STR00860##
ER-809117 ##STR00861## ER-809118 ##STR00862## ER-809119
##STR00863## ER-809120 ##STR00864## ER-809121 ##STR00865##
ER-809122 ##STR00866## ER-809123 ##STR00867## ER-809124
##STR00868## ER-809125 ##STR00869## ER-809126 ##STR00870##
ER-809127 ##STR00871## ER-809128 ##STR00872## ER-809129
##STR00873## ER-809130 ##STR00874## ER-809131 ##STR00875##
ER-809132 ##STR00876## ER-809133 ##STR00877## ER-809134
##STR00878## ER-809135 ##STR00879## ER-809136 ##STR00880##
ER-809137 ##STR00881## ER-809138 ##STR00882## ER-809139
##STR00883## ER-809140 ##STR00884## ER-809141 ##STR00885##
ER-809142 ##STR00886## ER-809143 ##STR00887## ER-809144
##STR00888## ER-809145 ##STR00889## ER-809146 ##STR00890##
ER-809147 ##STR00891## ER-809148 ##STR00892## ER-809149
##STR00893## ER-809150 ##STR00894## ER-809151 ##STR00895##
ER-809152 ##STR00896## ER-809153 ##STR00897## ER-809154
##STR00898## ER-809155 ##STR00899## ER-809156 ##STR00900##
ER-809157 ##STR00901## ER-809158 ##STR00902## ER-809159
##STR00903## ER-809160 ##STR00904## ER-809161 ##STR00905##
ER-809162 ##STR00906## ER-809163 ##STR00907## ER-809164
##STR00908## ER-809165 ##STR00909## ER-809166 ##STR00910##
ER-809167 ##STR00911## ER-809240 ##STR00912## ER-809241
##STR00913## ER-809242 ##STR00914## ER-809243 ##STR00915##
ER-809244 ##STR00916## ER-809245 ##STR00917## ER-809246
##STR00918## ER-809247 ##STR00919## ER-809268 ##STR00920##
ER-809269 ##STR00921## ER-809282 ##STR00922## ER-809283
##STR00923## ER-809284 ##STR00924## ER-809285 ##STR00925##
ER-809300 ##STR00926## ER-809301 ##STR00927## ER-809302
##STR00928## ER-809303 ##STR00929## ER-809304 ##STR00930##
ER-809305 ##STR00931## ER-809306 ##STR00932## ER-809308
##STR00933## ER-809309 ##STR00934## ER-809310 ##STR00935##
ER-809311 ##STR00936## ER-809312 ##STR00937## ER-809313
##STR00938## ER-809314 ##STR00939## ER-809315 ##STR00940##
ER-809316 ##STR00941## ER-809317 ##STR00942## ER-809318
##STR00943## ER-809319 ##STR00944## ER-809320 ##STR00945##
ER-809321 ##STR00946## ER-809322 ##STR00947## ER-809323
##STR00948## ER-809324 ##STR00949## ER-809325 ##STR00950##
ER-809326 ##STR00951## ER-809638 ##STR00952## ER-809640
##STR00953## ER-809641 Single diastereomer ##STR00954## ER-809642
Single diastereomer ##STR00955## ER-809643 Single diastereomer
##STR00956##
ER-809644 Single diastereomer ##STR00957## ER-809645 ##STR00958##
ER-809646 ##STR00959## ER-809647 Single diastereomer ##STR00960##
ER-809648 Single diastereomer ##STR00961## ER-809649 Single
diastereomer ##STR00962## ER-809650 Single diastereomer
##STR00963## ##STR00964## ##STR00965## ##STR00966## ##STR00967##
##STR00968## ##STR00969## ##STR00970## ##STR00971## ##STR00972##
##STR00973## ##STR00974## ##STR00975##
[0675] General Reaction Procedures:
[0676] Unless mentioned specifically, reaction mixtures were
stirred using a magnetically driven stirrer bar. An inert
atmosphere refers to either dry argon or dry nitrogen. Reactions
were monitored either by thin layer chromatography (TLC), by proton
nuclear magnetic resonance or by high-pressure liquid
chromatography (HPLC), of a suitably worked up sample of the
reaction mixture.
[0677] Listed below are abbreviations used for some common organic
reagents referred to herein: [0678] BOC or BOC.sub.2O:
Di-tert-Butyl dicarbonate [0679] CMC:
1-Cyclohexyl-3-(2-morpholinoethyl)carbodiimide
metho-p-toluenesulfonate [0680] DCM: Dichloromethane [0681] DEPC:
Diethylphosphoryl cyanide (Diethyl cyanophosphonate) [0682] DIBAL:
Diisobutylaluminum hydride [0683] DIEA: Diisopropylethylamine
[0684] DMF: N,N-Dimethylformamide [0685] DMSO: Dimethylsulfoxide
[0686] Ether: Diethyl ether [0687] HBTU:
O-(1-H-benzotriazol-1-yl)-N,N,N,N-tetramethyluronium
hexafluorophosphate [0688] HOAt: 1-Hydroxy-7-azabenzotriazole
[0689] LAH: Lithium aluminum hydride [0690] MSA: Methane sulfonic
acid [0691] NMM: N-Methyl Morpholine [0692] TBME: Tert-butyl methyl
ether [0693] TFA: Trifluoroacetic acid [0694] THF: Tetrahydrofuran
[0695] TMEDA: Tetramethylethylenediamine
[0696] General Work Up Procedures:
[0697] Unless mentioned specifically, reaction mixtures were cooled
to room temperature or below then quenched, when necessary, with
either water or a saturated aqueous solution of ammonium chloride.
Desired products were extracted by partitioning between water and a
suitable water-immiscible solvent (eg. ethyl acetate,
dichloromethane, diethyl ether). The desired product containing
extracts were washed appropriately with water followed by a
saturated solution of brine. On occasions where the product
containing extract was deemed to contain residual oxidants, the
extract was washed with a 10% solution of sodium thiosulphate in
saturated aqueous sodium bicarbonate solution, prior to the
aforementioned washing procedure. On occasions where the product
containing extract was deemed to contain residual acids, the
extract was washed with saturated aqueous sodium bicarbonate
solution, prior to the aforementioned washing procedure (except in
those cases where the desired product itself had acidic character).
On occasions where the product containing extract was deemed to
contain residual bases, the extract was washed with 10% aqueous
citric acid solution, prior to the aforementioned washing procedure
(except in those cases where the desired product itself had basic
character). Post washing, the desired product containing extracts
were dried over anhydrous magnesium sulphate, then filtered. The
crude products were then isolated by removal of solvent(s) by
rotary evaporation under reduced pressure, at an appropriate
temperature (generally less than 45.degree. C.).
[0698] On occasions where triphenylphosphine oxide was a major
byproduct of the reaction, the reaction mixture was added directly
to a large volume of well-stirred hexane. The resultant precipitate
of triphenylphosphine oxide was removed by filtration and the
filtrate processed in the usual manner.
[0699] General Purification Procedures:
[0700] Chromatographic purification refers either to flash column
chromatography on silica, using a single solvent or mixed solvent
as eluent, or HPLC on a C18 column. Suitably purified desired
product containing elutes were combined and concentrated under
reduced pressure at an appropriate temperature (generally less than
45.degree. C.) to constant mass. Final compounds were prepared for
biological testing by either a) dissolved in 50% aqueous
acetonitrile, filtered and transferred to vials, then freeze-dried
under high vacuum; or b) dissolved in methanol, filtered and
transferred to vials, then concentrated to dryness using a
Centrifugal vacuum evaporator.
Example 1
Preparation of Amine Esters 18, Amine Acids 20 and Amine Amides
23
##STR00976##
[0702] Preparation of Compound 13
##STR00977##
[0703] To a solution of Compound 12 (205 mg) in DMF (3.8 ml), at
room temperature, was added (S)-N-Boc-neo-phenylalanine (6) (140
mg), NMM (0.30 ml), HOAt (0.124 g), and CMC (1.16 g). The reaction
mixture was shaken at room temperature for 24 hr. Aqueous workup
followed by chromatographic purification gave Compound 13 (153 mg,
61%).
[0704] Preparation of Compound 14
##STR00978##
[0705] To a solution of compound 13 (153 mg) in methanol (20 ml),
at 0.degree. C., was added sodium borohydride (3.18 g) portionwise
with shaking over a 3 day period. The reaction mixture temperature
was maintained between 0.degree.-5.degree. C. On occasion where the
reaction mixture turned into a solidified mass, THF was added to
aid agitation. The reaction mixture was allowed to warm to room
temperature then re-cooled to 0.degree. C. and worked up in the
usual manner to give compound 14 (140 mg, 96%).
[0706] Preparation of Compound 15
##STR00979##
[0707] To a solution of compound 14 (50 mg) in THF (3 ml), at room
temperature, was added Dess Martin periodinane (204 mg) in one
portion. The resultant suspension was stirred vigorously for 4.5
hr. An aqueous work up gave crude compound 15 (50 mg) which was
used immediately in the next stage without purification.
[0708] General Procedure for the Preparation of Amine Esters 18
##STR00980##
[0709] To a solution of compound 15 (1 equivalent) in a suitable
volume of 1,2-dichloroethane, at room temperature, was added 4A
molecular sieves (crushed and dried) (equal mass to that of the
amine hydrochloride). A suitably chosen amine hydrochloride (16)
(10 equivalents) was added with vigorous stirring followed by
sodium triacetoxyborohydride (1.5 equivalents). The reaction
mixture was stirred at an appropriate temperature
(20.degree.-50.degree. C.) until compound 15 was consumed to a
satisfactory degree. Aqueous work up followed by chromatographic
purification gave the corresponding N-Boc Amine Ester 17.
Deprotection of the N-Boc moiety under suitable conditions would
give the corresponding N-terminal free amine 18.
[0710] General Procedure for the Preparation of Amine Acids 20
##STR00981##
[0711] To a solution of the N-Boc Amine Ester 17 in a suitable
mixture of THF and methanol, was added 1M lithium hydroxide
solution (10-50 equivalents). When the N-Boc Amine Ester 17 was
hydrolyzed to a satisfactory degree, the reaction mixture was given
an aqueous work up. The N-Boc Amine Acid 19 was purified
chromatographically. Deprotection of the N-Boc moiety under
suitable conditions would give the corresponding N-terminal free
amine 20.
[0712] General Procedure for the Preparation of Amine Amides 23
##STR00982##
[0713] To a solution of the N-Boc Amine Acid 19 in DMF, at room
temperature, was added NMM (20 equivalents). A suitably chosen
amine hydrochloride (21) (20 equivalents) was added followed by
DEPC (20 equivalents). When the N-Boc Amine Acid 19 was consumed to
a satisfactory degree the N-Boc Amine Amide 22 was isolated either
by direct chromatographic purification of the reaction mixture, or
by an aqueous work up followed by chromatographic purification.
Deprotection of the N-Boc moiety under suitable conditions would
give the corresponding N-terminal free amine 23.
Example 2
Preparation of N-Acetyl Amine Amides 27
##STR00983##
[0715] Preparation of Compound 24
##STR00984##
[0716] To a solution of aldehyde 13 (50 mg) in 1,2-dichloroethane
(2 ml), at room temperature, was added 4A molecular sieves (crushed
and dried) (50 mg). Glycine methyl ester hydrochloride (120 mg) was
added with vigorous stirring followed by sodium
triacetoxyborohydride (205 mg). The reaction mixture was stirred at
40.degree. C.) for two hours. Aqueous work up followed by
chromatographic purification gave compound 24 (31 mg, 46%).
[0717] Preparation of Compound 25
##STR00985##
[0718] To a solution of compound 24 (5.5 mg) in DMF (0.4 ml), at
room temperature, was added pyridine (0.006 ml) followed by acetic
anhydride (0.004 ml). The reaction mixture was shaken for three
hours at room temperature then concentrated in vacuo to dryness.
The residue was dissolved in saturated HCl in methanol (1 ml) and
stood at room temperature for 15 minutes. The reaction mixture was
concentrated in vacuo to give compound 25 (4 mg, 90%).
[0719] Preparation of Compound 26
##STR00986##
[0720] To a solution of compound 25 (3.35 mg) in methanol (0.2 mL),
was added 1 M lithium hydroxide solution (0.118 mL). The reaction
mixture was stirred at room temperature for 5 hr. Chromatographic
purification followed by treatment with methanolic HCl gave the
hydrochloride salt of compound 26 (1.95 mg, 61%).
[0721] General Procedure for the Preparation of N-Acetyl Amine
Amides 27
##STR00987##
[0722] To a solution of compound 26 (1 equivalent) in DMF, at room
temperature, was added NMM (20 equivalents). A suitably chosen
amine hydrochloride (21) (20 equivalents) was added followed by
DEPC (20 equivalents). When compound 26 was consumed to a
satisfactory degree the N-Acetyl Amine Amide (27) was isolated by
direct chromatographic purification of the reaction mixture.
Example 3
Preparation of Compound 33
##STR00988##
[0724] Preparation of Compound 28
##STR00989##
[0725] To a solution of compound 3b (1.94 g) in dry DCM (20 mL), at
0.degree. C. under an inert atmosphere, was added a 1 M solution of
DIBAL (32 mL) dropwise. The reaction mixture was stirred at
0.degree. C. for 2.5 hr then methanol (4.4 mL) was added dropwise
followed by a saturated solution of ammonium chloride (8.8 mL). DCM
(200 mL) was added and the reaction mixture stirred vigorously at
room temperature for 30 min. Filtration followed by concentrated in
vacuo gave crude compound 28 (1.08 g, 65%).
[0726] Preparation of Compound 29
##STR00990##
[0727] To a solution of compound 28 (207 mg) in THF (5 mL), at
0.degree. C. under an inert atmosphere, was added sodium hydride
(60% dispersion in mineral oil; 160 mg) portionwise. The reaction
mixture was stirred at 0.degree. C. for 45 min then treated with
ethyl bromoacetate (0.47 mL). The reaction mixture was allowed to
warm to room temperature. An aqueous work up followed by
chromatographic purification gave an intermediate Boc compound (185
mg, 67%). The intermediate Boc compound (139 mg) was dissolved in
ethanol (2 mL) and treated with saturated HCl in ethanol (2 mL).
The reaction mixture was stood at room temperature for 10 min then
concentrated in vacuo to dryness to give compound 29 (114 mg).
[0728] Preparation of Compound 30
##STR00991##
[0729] To a solution of compound 29 (114 mg) in DMF (1.8 mL), at
room temperature, was added (S)-N-Boc-tert-leucine (4) (283 mg),
NMM (0.135 mL), HOAt (56 mg), and CMC (518 mg). The reaction
mixture was shaken at room temperature for 16 hr. Aqueous workup
followed by chromatographic purification gave an intermediate Boc
compound (42 mg, 22%). The intermediate Boc compound (42 mg) was
dissolved in saturated HCl in ethanol (5 mL) and stood at room
temperature for 10 min. Concentration in vacuo gave compound 30 (37
mg).
[0730] Preparation of Compound 31
##STR00992##
[0731] To a solution of compound 30 (24 mg) in DMF (0.26 mL), at
room temperature, was added (S)-N-Boc-neo-phenylalanine (6) (38
mg), NMM (0.014 mL), HOAt (8.3 mg), and CMC (52 mg). The reaction
mixture was shaken at room temperature for 16 hr. Aqueous workup
followed by chromatographic purification gave an intermediate Boc
compound (38 mg, 64%). The intermediate Boc compound (38 mg) was
dissolved in saturated HCl in ethanol (5 mL) and stood at room
temperature for 10 min. Concentration in vacuo gave compound 31 as
its HCl salt.
[0732] Preparation of Compound 32
##STR00993##
[0733] A solution of compound 31 (4 mg) in ethanol (2 mL) was
treated with 1 M lithium hydroxide (0.5 ml). The reaction mixture
was stirred at room temperature for 1.5 hr. Aqueous work up
followed by chromatographic purification gave compound 32 (2.9 mg,
76%).
[0734] Preparation of Compound 33
##STR00994##
[0735] To a solution of compound 32 (1.9 mg) in DMF (70 .mu.l), at
room temperature, was added NMM (3.8 .mu.l), pyrrolidine (2.8
.mu.l), and DEPC (5.2 .mu.l). The reaction mixture was stirred at
room temperature for 16 hr. The reaction mixture was purified
chromatographically to give compound 33 (1.2 mg, 58%).
Example 4
Preparation of Amine Esters 42, Amine Acids 43 and Amine Amides
45
##STR00995##
[0737] Preparation of Compound 39
##STR00996##
[0738] To a solution of compound 12 (1.25 g) in DMF (21 mL), at
room temperature, was added (R)-N-methylpipecoline hydrochloride
(38) (0.38 g), NMM (1.4 mL), HOAt (0.575 g), and CMC (5.37 g). The
reaction mixture was shaken at room temperature for 24 hr. Aqueous
workup gave compound 39 (0.511 g, 63%).
[0739] Preparation of Compound 40
##STR00997##
[0740] To a solution of compound 39 (0.8 g) in methanol (8 mL), at
0.degree. C., was added sodium borohydride (7.9 g) portionwise over
a 3 day period. The reaction mixture temperature was maintained
between 0.degree.-5.degree. C. On occasion where the reaction
mixture turned into a solidified mass, THF was added to aid
stirring. The reaction mixture was allowed to warm to room
temperature then re-cooled to 0.degree. C. and quenched with
saturated sodium bicarbonate solution. Aqueous workup gave compound
40.
[0741] Preparation of Compound 41
##STR00998##
[0742] To a solution of compound 40 (50 mg) in THF (3 mL), at room
temperature, was added Dess Martin periodinane (225 mg) in one
portion. The resultant suspension was stirred vigorously for 4 hr.
An aqueous work up gave crude compound 41 (55 mg) which was used
immediately in the next stage without purification.
[0743] General Procedure for the Preparation of N-Terminal
N-Heterocyclic Amine Esters 42
##STR00999##
[0744] To a solution of compound 41 (300 mg) in 1,2-dichloroethane
(10 mL), at room temperature, was added 4 A molecular sieves
(crushed and dried) (1.5 g). The amino acid ester hydrochloride
(16) (10 equivalents) was added and the reaction mixture stirred
vigorously for .about.10 min. Sodium triacetoxyborohydride (290 mg)
was added in one portion and the reaction mixture stirred
vigorously at room temperature. When compound 41 was consumed to a
satisfactory degree, the reaction mixture was given an aqueous work
up. The N-terminal N-heterocyclic Amine Esters 42 was purified
chromatographically, except in cases where it was deemed
unnecessary.
[0745] General Procedure for the Preparation of N-Terminal
N-Heterocyclic Amine Acids 43
##STR01000##
[0746] To a solution of the N-terminal N-heterocyclic Amine Esters
(42) in a suitable mixture of THF and methanol, was added 1 M
lithium hydroxide solution (10-50 equivalents). When the N-terminal
N-heterocyclic Amine Esters 42 was hydrolyzed to a satisfactory
degree, the reaction mixture was given an aqueous work up. The
N-terminal N-heterocyclic Amine acid 43 was purified
chromatographically, except in cases where it was deemed
unnecessary.
[0747] General Procedure for the Preparation of N-Terminal
N-Heterocyclic Amine Amides 45
##STR01001##
[0748] To a solution of the N-terminal N-heterocyclic Amine acid 43
in DMF, at room temperature, was added NMM (20 equivalents). A
suitably chosen amine hydrochloride (44) (20 equivalents) was added
followed by DEPC (20 equivalents). When the N-terminal
N-heterocyclic Amine acid 43 was consumed to a satisfactory degree
the N-terminal N-heterocyclic Amine Amide 45 was isolated either by
direct chromatographic purification of the reaction mixture, or by
an aqueous work up followed by chromatographic purification.
Example 5
Preparation of Compounds 51 and 52
##STR01002##
[0750] Step 1: Preparation of Compound 49:
##STR01003##
[0751] Preparation of Compound 47:
##STR01004##
[0752] Procedure a.
[0753] Compound 46 (1.0405 g, 4.4984 mmol) was dissolved in DMF
(8.0 mL). K.sub.2CO.sub.3 (0.6258 g, 4.5279 mmol) was added. Methyl
iodide (0.6 mL, 9.6379 mmol) was added. The milky suspension was
stirred at room temp under nitrogen for 3 days. Standard aqueous
workup yielded ester 47 as a colorless oil (1.0590 g, 96%).
[0754] Preparation of Compound 2:
##STR01005##
[0755] Compound 47 (0.9447 g, 3.8509 mmol) was dissolved in toluene
(15 mL), and the solution was cooled to -78.degree. C. under
nitrogen. DIBAL (6.0 mL, 6.00 mmol, 1.0 M in hexanes) was added via
syringe over 5 min. The solution was stirred for 1 h, and was
quenched with MeOH (1.0 mL) at -78.degree. C. The bath was removed
and 5.0 mL of saturated potassium sodium tartrate solution was
added. The mixture was stirred for ca. 1 h, and was filtered
through Celite. The filtrate was washed with H.sub.2O and brine,
and dried over Na.sub.2SO.sub.4, filtered, and evaporated to give
compound 2 (0.8413 g, 101%) sufficiently pure for the next
step.
[0756] Preparation of Compound 3b:
##STR01006##
[0757] Compound 2 (0.8413 g, 3.8509 mmol) was dissolved in
CH.sub.2Cl.sub.2 (5.0 mL) and
(carbethoxyethylidene)triphenylphosphorane (1.8212 g, 5.0254 mmol)
was added. The solution was stirred at room temp under nitrogen
overnight. The solution was evaporated, and the residue was diluted
with EtOAc (70 mL) and washed with H.sub.2O (2.times.25 mL) and
brine (25 mL), and dried over Na.sub.2SO.sub.4, filtered, and
evaporated to give an oil. Purification by Flash Chromatography on
SiO.sub.2 (FC) gave pure compound 3b (0.7863 g, 68%).
[0758] Preparation of Compound 48:
##STR01007##
[0759] Compound 3b (0.7863 g, 2.6262 mmol) was dissolved in
CH.sub.2Cl.sub.2 (1.0 mL) and triethylsilane (0.460 mL, 2.880 mmol)
was added. Trifluoroacetic acid (TFA) (2.5 mL) was added at room
temp. After 30 min (complete reaction as judged by HPLC), the
solution was evaporated to give a solid (1.1307 g). This solid was
dissolved in CH.sub.3CN (ca. 10 mL) and 5.5 N HCl (2.4 mL, 13.2
mmol) was added. Evaporation gave the HCl salt, compound 48 (0.618
g, 100%).
[0760] Preparation of Compound 5b:
##STR01008##
[0761] Compound 48 (0.390 g, 1.6543 mmol), L-N--BOC-t-butylglycine
(1.0106 g, 4.3694 mmol), CMC (1.9704 g, 4.6518 mmol), HOAt (0.5905
g, 4.3384 mmol), and NMM (0.490 mL, 4.4567 mmol) were combined, and
DMF (4.0 mL) was added. The solution was stirred at room temp under
nitrogen for 25 h. The solution was diluted with EtOAc (70 mL) and
was washed with H.sub.2O (2.times.25 mL), aq. pH 7.2 phosphate
buffer (25 mL), H.sub.2O (25 mL), and brine (25 mL), and dried over
MgSO.sub.4, filtered, and evaporated to give a solid which was
purified by FC to give compound 5b (0.4239 g, 62%).
[0762] Preparation of Compound 49:
##STR01009##
[0763] Compound 5b (0.1159 g, 0.2809 mmol) was dissolved in
CH.sub.2Cl.sub.2 (3.0 mL) and triethylsilane (0.050 mL, 0.3130
mmol) was added. Trifluoroacetic acid (TFA) (2.5 mL) was added at
room temp. After 30 min (complete reaction as judged by HPLC), the
solution was evaporated to give a solid. This solid was dissolved
in CH.sub.3CN (ca. 5 mL) and 5.5 N HCl was added (0.3 mL, 1.65
mmol). Evaporation gave the HCl salt, compound 49 (0.0662 g,
100%).
[0764] Step 2: Preparation of Compound 51:
[0765] Preparation of Compound 50:
##STR01010##
[0766] Compound 49 (0.0774 g, 0.2219 mmol), (R)-N-methylpipecolic
(0.0705 g, 0.3925 mmol), CMC (0.1752 g, 0.4136 mmol), HOAt (0.0344
g, 0.2527 mmol), and NMM (0.063 mL, 0.5730 mmol) were combined, and
DMF (2.0 mL) was added. The solution was stirred at room temp under
nitrogen for 20 h. The solution was purified directly by RP HPLC to
give compound 50 (0.0989 g, 81%).
[0767] Preparation of Compound 51:
##STR01011##
[0768] Compound 50 (0.0989 g, 0.2086 mmol) was dissolved in 1:1
H.sub.2O/MeOH (14 mL) at room temp. LiOH (0.0537 g, 2.2422 mmol)
was added. The suspension was stirred at room temp. 19 h. The
solution was acidified with 5.5 N HCl (0.50 mL), and purified by RP
HPLC to give the TFA salt of 11 (0.0978 g, 90%). This was dissolved
in CH3CN (ca. 5 mL) and treated with 5.5 N HCl (ca. 1 mL, 5.5 mmol)
and evaporated to give the HCl salt of compound 51 (0.0667 g,
72%).
[0769] Step 2: Preparation of Compound 52:
##STR01012##
[0770] Compound 51 (0.0062 g, 0.0139 mmol), L-proline methyl ester
hydrochloride (0.0263 g, 0.1588 mmol) were dissolved in DMF (1.0
mL) at room temp. under nitrogen. DEPC (0.017 mL, 0.1120 mmol) was
added via syringe. NMM (0.025 mL, 0.2274 mmol) was added via
syringe. The solution was stirred overnight, quenched with H.sub.2O
(1.0 mL), and purified by RP HPLC to give the TFA salt of compound
52. This was dissolved in CH.sub.3CN (ca. 3 mL) and treated with
5.5 N HCl (0.10 mL, 0.55 mmol) and evaporated to give the HCl salt
of compound 52 (0.0078 g, 100%).
Example 6
Preparation of Compound 62a
##STR01013##
[0772] Preparation of Compound 54
##STR01014##
[0773] To a solution of 4-methylpiperidine (53) (600 .mu.L, 5.0
mmol) in MeOH (20 mL) was added Et.sub.3N (770 .mu.L, 5.5 mmol)
followed by Boc.sub.2O (1.2 g, 5.5 mmol) at 0.degree. C. After 15
minutes, the reaction mixture was warmed to room temperature and
allowed to stir overnight. The reaction solution was then diluted
with H.sub.2O and extracted several times with ether. The ether
extracts were combined, dried over Mg.sub.2SO.sub.4, filtered, and
concentrated to provide compound 54 (926.5 mg) quantitatively as a
colorless oil.
[0774] Preparation of Compound 55
##STR01015##
[0775] A solution of compound 54 (926.5 mg, 5.0 mmol) in Et.sub.2O
(10.5 mL) was cooled to -78.degree. C. and treated with TMEDA (755
.mu.L, 5.0 mmol) followed by slow addition of a 1.3 M cyclohexane
solution of sec-butyllithium (4.6 mL, 6.0 mmol) over a 30 minute
period. The reaction solution was then warmed to -20.degree. C. and
maintained at that temperature for 30 minutes, after which the
solution was re-cooled to -78.degree. C. and purged with gaseous
carbon dioxide for 15 minutes. The reaction solution was then
slowly warmed to 0.degree. C. and poured into a biphasic mixture of
1 N HCl (100 mL) and EtOAc (50 mL). The reaction solution was then
extracted several times with EtOAc. The EtOAc extracts were
combined, dried over Mg.sub.2SO.sub.4, filtered, and concentrated
to provide compound 55 (1.07 g) in 89% yield as a colorless oil (a
mixture of two cis enantiomers).
[0776] Preparation of Compound 59a
##STR01016##
[0777] To a solution of compound 55 (292 mg, 1.2 mmol) in
CH.sub.2Cl.sub.2 (2.4 mL) at 0.degree. C. was added TFA (2.4 mL).
After 15 minutes, the reaction solution was warmed to r.t. and
stirred for 3 hours. The reaction mixture was then concentrated in
vacuo to provide compound 59a (309 mg) quantitatively as a light
yellow oil.
[0778] Preparation of Compound 59b
##STR01017##
[0779] Step 1: Preparation of Compound 56
##STR01018##
[0780] To a solution of compound 55 (780 mg, 3.2 mmol) in DMF (6.4
mL) was added K.sub.2CO.sub.3 (663 mg, 4.8 mmol) followed by MeI
(300 .mu.L, 4.8 mmol). The reaction solution was allowed to stir
overnight. The reaction mixture was then diluted with H.sub.2O and
extracted several times with ether. The ether extracts were
combined, dried over Mg.sub.2SO.sub.4, filtered, and concentrated
in vacuo. Purification of the residue by silica gel chromatography
(4% EtOAc in hexanes) yielded 535 mg (65%) of compound 56 as a
colorless oil.
[0781] Step 2: Preparation of Compound 57
##STR01019##
[0782] To a solution of compound 56 (463 mg, 1.8 mmol) in MeOH (2.6
mL) was added a 25 wt % solution of NaOMe in MeOH (100 .mu.L). The
solution was allowed to stir overnight. The reaction mixture was
then diluted with H.sub.2O and extracted several times with ether.
The ether extracts were combined, dried over Mg.sub.2SO.sub.4,
filtered, and concentrated in vacuo. Purification of the residue by
silica gel chromatography (4% EtOAc in hexanes) yielded 363.6 mg
(79%) of racemic compound 57 as a colorless oil.
[0783] Step 3: Preparation of Compound 58
##STR01020##
[0784] To a solution of compound 57 (360 mg, 1.4 mmol) in a 2:1
mixture of H.sub.2O (2.75 mL) and EtOH (5.50 mL) was added KOH
pellets (786 mg, 14 mmol) and the reaction solution was stirred at
room temperature until complete by TLC. The reaction mixture was
then diluted with H.sub.2O and extracted several times with ether.
The ether extracts were combined, dried over Mg.sub.2SO.sub.4,
filtered, and concentrated to provide compound 58 (341 mg)
quantitatively as a white solid.
[0785] Step 4: Preparation of Compound 59b
To a solution of compound 58 (292 mg, 1.2 mmol) in CH.sub.2Cl.sub.2
(2.4 mL) at 0.degree. C. was added TFA (2.4 mL). After 15 minutes,
the reaction solution was warmed to r.t. and stirred for 3 hours.
The reaction mixture was then concentrated in vacuo to provide
compound 59b (309 mg) quantitatively as a light yellow oil.
[0786] Preparation of Compounds 60a and 60b
##STR01021##
[0787] To a solution of compound 59a (or 59b) (283 mg, 1.1 mmol) in
MeOH (5 mL) was added Pd(OH).sub.2 (75 mg) followed by a 37 wt %
solution of formaldehyde in H.sub.2O (300 .mu.L). Gaseous H.sub.2
(balloon pressure) was charged in and the reaction mixture was
allowed to stir under an H.sub.2 atmosphere overnight. The reaction
solution was then filtered through a bed of celite, and
concentrated to provide compound 60a (or 60b) (173 mg)
quantitatively as a white solid.
[0788] Preparation of Compounds 61a and 61b
##STR01022##
[0789] To a solution of compound 60a and 60b (11.0 mg, 0.07 mmol)
in CH.sub.2Cl.sub.2 (350 .mu.L) was added HBTU (40 mg, 0.11 mmol)
and DIEA (37 .mu.L, 0.21 mmol). After 5 minutes, amine 49 (22.0 mg,
0.07 mmol) was added. The reaction mixture was stirred for 30
minutes, filtered, and concentrated. Purification of the residue by
silica gel chromatography (2% EtOH in CH.sub.2Cl.sub.2) yielded
15.1 mg (96%) of each diastereomer 61a and 61b as colorless
oils.
[0790] Preparation of Compound 62a
##STR01023##
[0791] To a solution of diastereomer 61a (9.0 mg, 0.02 mmol) in a
2:1 mixture of H.sub.2O (80 .mu.L) and EtOH (160 .mu.L) was added
LiOH.H.sub.2O (840 mg, 0.20 mmols). The reaction solution was
allowed to stir overnight. The reaction mixture was then acidified
with 1 N HCl until the pH=6.00. The solution was then extracted
several times with CH.sub.2Cl.sub.2. The CH.sub.2Cl.sub.2 extracts
were combined, dried over Mg.sub.2SO.sub.4, filtered, and
concentrated to provide compound 62a (8.4 mg) quantitatively as a
white solid.
Example 7
Preparation of Compound 67b
##STR01024##
[0793] Preparation of Compound 64
##STR01025##
[0794] To a suspension of L-penicillamine (63) (300 mg, 2.0 mmol)
in methanol (10 mL) was added benzaldehyde (233 mg, 2.2 mmol)
followed by sodium bicarbonate (336 mg, 4.0 mmol). The mixture was
heated to reflux with stirring for 16 h. After cooling to r.t., it
was acidified to pH 5 with 1 N HCl and extracted with ethyl acetate
three times. The organic phase was concentrated to give a yellow
solid as the crude product 64 (469 mg, 99%)
[0795] Preparation of Compound 65
##STR01026##
[0796] To a solution of crude 64 (47 mg, 0.2 mmol) in THF (1 mL)
was added aq. 37% formaldehyde solution (49 .mu.l, 0.6 mmol)
followed by NaBH.sub.4 (38 mg, 0.6 mmol). The mixture was stirred
at r.t. for 24 h. After acidifying to pH 5 and extracting with
ethyl acetate, the organic phase was dried and concentrated to give
crude product 65 (67 mg, >100%).
[0797] Preparation of Compounds 66a and 66b
##STR01027##
[0798] To a mixture of 65 (29 mg, 0.115 mmol), amine HCl salt 49
(15 mg, 0.043 mmol), CMC (55 mg, 0.129 mmol), and HOAt (3 mg, 0.022
mmol) was added DMF (0.5 mL) followed by NMM (6 ml, 0.055 mmol).
The mixture was stirred at r.t. for 24 h. The reaction was quenched
by adding water (0.5 mL) and methanol (0.5 mL). The products 66a
(32%), and 66b (75%) were obtained after separation by RP HPLC
(0-100% B in 30 min A: 5% MeCN+0.15% TFA in H.sub.2O; B: 0.15% TFA
in MeCN) and lyophilization.
[0799] Preparation of Compounds 67b
##STR01028##
[0800] To a solution of 66b (4 mg, 0.0073 mmol) in methanol (0.5
mL) was added aq. LiOH (1 M, 0.5 mL). The mixture was stirred for
16 h and acidified with 1 N HCl. Product 67b (2.79 mg, 74%) was
obtained after RP HPLC purification and lyophilization.
Example 8
Preparation of Compound 74
##STR01029##
[0802] Preparation of Compound 69
##STR01030##
[0803] To a solution of diethylglycine (68) (131 mg, 1.0 mmol) in 1
N NaOH (1.5 mL) was added a solution of di-t-butyl-dicarbonate (436
mg, 2.0 mmol) in dioxane (1.0 mL). The mixture was stirred for 16
h. It was acidified to pH 3 with 1 N HCl and extracted with ethyl
acetate three times. The organic phases were combined, dried, and
concentrated to yield crude product 69 (135 mg, 58%).
[0804] Preparation of Compound 70
##STR01031##
[0805] To a solution of crude 69 (135 mg, 0.58 mmol) in MeOH (0.5
mL) and THF (0.5 mL) was added trimethylsilyldiazomethane (2 M in
hexanes, 2.0 mmol). The solution was stirred at r.t. for 1 h.
Evaporation gave crude product 70 (0.58 mmol).
[0806] Preparation of Compound 71
##STR01032##
[0807] To a mixture of sodium hydride (160 mg 60%, 4 mmol) in DMF
(1 mL) was added a solution of compound 70 (0.58 mmol) in DMF (1
mL) followed by methyl iodide (188 .mu.l, 3 mmol). The mixture was
stirred at room temperature for 24 h. Water was added to quench the
reaction. The product 71 (118 mg, 78% 2 steps) was extracted with
ethyl acetate and purified by flash column chromatography (silica,
ethyl acetate/hexanes).
[0808] Preparation of Compound 72
##STR01033##
[0809] A solution of compound 71 (118 mg, 0.46 mmol) in conc. HCl
(1 mL) was stirred at room temp. for 24 h. Product 72 was obtained
after evaporation of volatiles.
[0810] Preparation of Compound 73
##STR01034##
[0811] To a mixture of compound 72 (30 mg, 0.166 mmol), amine 49
HCl salt (39 mg, 0.166 mmol), CMC (141 mg, 0.332 mmol), and HOAt
(14 mg, 0.103 mmol) was added DMF (1.5 mL) followed by NMM (6 ml,
0.128 mmol). The mixture was stirred at room temp. for 24 h. The
reaction was quenched by adding water (0.5 mL) and methanol (0.5
mL). Product 73 (27 mg, 34%) was obtained after separation by RP
HPLC (0-100% B in 30 min A: 5% MeCN+0.15% TFA in H.sub.2O; B: 0.15%
TFA in MeCN) and lyophilization.
[0812] Preparation of Compound 74
##STR01035##
[0813] To a solution of compound 73 (18 mg) in methanol (0.5 mL)
was added aq. LiOH (1 M, 0.5 mL). The mixture was stirred for 16 h
and then acidified by 1 N HCl. Product 74 (12.3 mg, 73%) was
obtained after RP HPLC purification and lyophilization.
Example 9
Preparation of Compound 78
##STR01036##
[0815] Preparation of Compound 76
##STR01037##
[0816] To a solution of compound 75 (123 mg) in dry DCM (1 mL), at
0.degree. C. under an inert atmosphere, was added a 1 M solution of
DIBAL (1.6 mL) dropwise. The reaction mixture was stirred at
0.degree. C. for 2 hr then allowed to warm to 10.degree. C. then
re-cooled to 0.degree. C. Methanol (0.22 mL) was added dropwise
followed by a saturated solution of ammonium chloride (0.44 mL).
DCM (20 mL) was added and the reaction mixture stirred vigorously
at room temperature for 30 min. Filtration followed by concentrated
in vacuo gave compound 76 (73 mg, 65%).
[0817] Preparation of Compound 77
##STR01038##
[0818] To a solution of compound 76 (3 mg) in acetonitrile (0.6 mL)
was added Dess Martin periodinane (3.1 mg). The reaction mixture
was stirred at room temperature for 1 hr then diluted with diethyl
ether (2 mL). The resultant suspension was filtered through a 0.25
.mu.m PTFE syringe filter and concentrated in vacuo to give crude
compound 77 (4 mg).
[0819] Preparation of Compound 78
##STR01039##
[0820] To a solution of compound 77 (3 mg) in DCM (0.5 mL), at room
temperature, was added ethyl carbethoxymethylidene
triphenylphosphorane (21 mg). The reaction mixture was stirred at
room temperature for 16 hr then concentrated in vacuo to dryness.
Chromatographic purification gave compound 78 (1.48 mg, 44%).
Example 10
Preparation of Compound 81
##STR01040##
[0822] Preparation of Compound 79
##STR01041##
[0823] To a solution of compound 7b (10 mg) in dry DCM (0.5 mL), at
0.degree. C. under an inert atmosphere, was added a 1 M solution of
DIBAL (0.085 mL) dropwise. The reaction mixture was stirred at
0.degree. C. for 1.5 hr then methanol (0.012 mL) was added dropwise
followed by a saturated solution of ammonium chloride (0.024 mL).
DCM (5 mL) was added and the reaction mixture stirred vigorously at
room temperature for 20 min. Filtration followed by concentrated in
vacuo gave crude compound 79 (9 mg, 95%).
[0824] Preparation of Compound 80
##STR01042##
[0825] To a solution of compound 79 (5 mg) in THF (0.5 mL) was
added sodium bicarbonate (3.6 mg) and Dess Martin periodinane (7.2
mg). The reaction mixture was stirred at room temperature for 3 hr
then concentrated in vacuo to give crude compound 80.
[0826] Preparation of Compound 81
##STR01043##
[0827] To a solution of compound 80 (4.8 mg) in ethanol (0.5 mL),
at room temperature, was added hydroxylamine hydrochloride (4 mg)
and sodium acetate (6 mg). The reaction mixture was stirred at
40.degree. C. for 1.5 hr then concentrated to dryness. The residue
was dissolved in DCM (0.2 mL) and treated with TFA (0.2 mL) and
stood at room temperature for 10 min. Concentration in vacuo to
dryness followed by chromatographic purification gave compound 81
(2.04 mg).
Example 11
Preparation of Compound 87
##STR01044##
[0829] Preparation of Compound 84
##STR01045##
[0830] To a solution of compound 28 (335 mg) in THF (10 mL), at
0.degree. C. under an inert atmosphere, was added sodium hydride
(65% dispersion in mineral oil; 144 mg) portionwise. The reaction
mixture was stirred at 0.degree. C. for 30 min then treated with
methyl iodide (0.405 mL). The reaction mixture was allowed to warm
to room temperature and stirred at room temperature for 3 hr. An
aqueous work up followed by chromatographic purification gave
compound 84 (254 mg, 72%).
[0831] Preparation of Compound 85
##STR01046##
[0832] Compound 84 (189 mg) was treated with saturated HCl in
methanol (5 mL). The reaction mixture was stood at room temperature
for 2 hr then concentrated in vacuo to dryness to give compound 85
(145 mg).
[0833] Preparation of Compound 86
##STR01047##
[0834] To a solution of compound 85 (145 mg) in DMF (3 mL), at room
temperature, was added (S)-N-Boc-tert-leucine (483 mg), NMM (0.230
mL), HOAt (95 mg), and CMC (884 mg). The reaction mixture was
shaken at room temperature for 16 hr. Aqueous workup followed by
chromatographic purification gave an intermediate Boc compound (249
mg, 93%). The intermediate Boc compound (60 mg) was dissolved in
methanol (1 mL) and treated with saturated HCl in methanol (3 mL)
and stood at room temperature for 30 min. Concentration in vacuo
gave compound 86 (49 mg).
[0835] Preparation of Compound 87
##STR01048##
[0836] To a solution of compound 86 (49 mg) in DMF (0.44 mL), at
room temperature, was added (S)-N-Boc-neo-phenylalanine (94 mg),
NMM (34 .mu.l), HOAt (21 mg), and CMC (130 mg). The reaction
mixture was shaken at room temperature for 16 hr. Aqueous workup
followed by chromatographic purification gave an intermediate Boc
compound (41 mg, 47%). The intermediate Boc compound (5.5 mg) was
dissolved in DCM (1 mL) and treated with TFA (1 mL). The reaction
mixture was stood at room temperature for 30 min then concentrated
in vacuo to dryness. The residue was dissolved in saturated HCl in
methanol (1 mL) and stood at room temperature and then concentrated
in vacuo to give compound 87 (4.39 mg, 89%).
Example 12
Preparation of Compound 91
##STR01049##
[0838] Preparation of Compound 88
##STR01050##
[0839] To a solution of compound 28 (344 mg) in 0.5 M Hunnig's base
in DCM (8 mL), at 0.degree. C. under an inert atmosphere, was added
methane sulphonyl chloride (0.207 mL) dropwise. The reaction
mixture was stirred at 0.degree. C. for 1.5 hr then subjected to an
aqueous work up followed by chromatographic purification to give an
intermediate mesylate (444 mg). The intermediate mesylate was
dissolved in DMSO (2 mL) and treated with sodium azide (258 mg).
The reaction mixture was heated at 40.degree. C. for 6 hr. An
aqueous work up gave compound 88 (306 mg, 82%).
[0840] Preparation of Compound 89
##STR01051##
[0841] Compound 88 (140 mg) was dissolved in DCM (1 mL) and treated
with TFA (1 mL). The reaction mixture was stood at room temperature
for 30 min then concentrated in vacuo to dryness. The residue was
dissolved in saturated HCl in methanol (1 mL) and stood at room
temperature and then concentrated in vacuo to give compound 89 (109
mg).
[0842] Preparation of Compound 90
##STR01052##
[0843] To a solution of compound 89 (109 mg) in DMF (2 mL), at room
temperature, was added (S)-N-Boc-tert-leucine (347 mg), NMM (0.165
mL), HOAt (68 mg), and CMC (635 mg). The reaction mixture was
stirred at room temperature for 16 hr. Aqueous workup followed by
chromatographic purification gave an intermediate Boc compound (173
mg, 87%). The intermediate Boc compound (51 mg) was dissolved in
methanol (1 mL) and treated with saturated HCl in methanol (3 mL)
and stood at room temperature for 30 min. Concentration in vacuo
gave compound 90 (43 mg).
[0844] Preparation of Compound 91
##STR01053##
[0845] To a solution of compound 90 (42 mg) in DMF (0.37 mL), at
room temperature, was added (S)-N-Boc-neo-phenylalanine (79 mg),
NMM (28 .mu.l), HOAt (17 mg), and CMC (108 mg). The reaction
mixture was shaken at room temperature for 16 hr. Aqueous workup
followed by chromatographic purification gave an intermediate Boc
compound (88 mg). The intermediate Boc compound (88 mg) was
dissolved in saturated HCl in methanol (5 mL) and stood at room
temperature for 30 min and then concentrated in vacuo to give
compound 91 (70 mg, 89%).
Example 13
General Procedure for the Preparation of C-Terminal Acid
Compounds
[0846] ##STR01054## [0847] R.sub.2=Me or Et [0848] R.sub.1=see
examples below
##STR01055## ##STR01056##
[0849] To a solution of the corresponding methyl or ethyl ester
(e.g., compound 7b) in a suitable mixture of methanol and
tetrahydrofuran, at room temperature, was added aqueous 1 M lithium
hydroxide (10-50 equivalents). The reaction mixture was stirred or
shaken or stood at room temperature until the starting ester had
been satisfactorily hydrolyzed. The usual workup followed by
chromatographic purification gave the desired C-terminal acid
compound (e.g., compound 82).
Example 14
Preparation of Compound ER-807974
##STR01057##
[0851] Preparation of Compound ER-807641
##STR01058##
[0852] To a stirred solution of N-Boc-N-Me-L-Valine (200 g, 0.86
mols), N,O-demethylhydroxylamine (92.8 g, 0.95 mols, 1.1 eq) and
DIEA (316.3 mL, 1.82 mol, 2.1 eq) in CH.sub.3CN (2 L) at 0.degree.
C. was added HBTU (360.7 g, 0.95 mols, 1.1 eq) in portions. The
solution was stirred at 0.degree. C. for additional 15 min and then
for 1 h at 25.degree. C. Reaction was monitored by TLC (Hept./EtOAc
1:1) and deemed completed when no 46 was observed. The solution was
concentrated by rota-vap and then diluted in TBME (1 L). The
organic solution was washed with HCl (1N, 500 mL), water (250 mL),
NaHCO.sub.3 (sat. 250 mL) and brine (250 mL). The organic solution
was dried over MgSO.sub.4 (.about.120 g). The solution was filtered
through a silica gel bed (.about.200 g) and concentrated. Crude
amide ER-807641 was used without any further purification.
[0853] Preparation of Compound ER-808993
##STR01059##
[0854] To a stirred solution of amide ER-807641 (207 g, 755 mmol, 1
eq.) in dry THF (2070 mL) at -78.degree. C. was added a solution of
LiAlH.sub.4 (1.0M/THF, 754 mL, 755 mmol, 1.0 eq.). The solution was
stirred at -78.degree. C. for 1 h. Reaction was quenched at
-78.degree. C. by addition of reaction solution to a suspension of
Na.sub.2SO.sub.4.10H.sub.2O (243 g) in TBME (1.5 L). The slurry was
allowed to warm up to .about.15.degree. C. and was then filtered
through a Celite pad. The filtrate was concentrated, and the crude
aldehyde ER-808993 was obtained as a clear oil and used without
further purification.: 157.9 g (97%).
[0855] Preparation of Compound ER-808995-01
##STR01060##
[0856] Part A:
[0857] To a stirred solution of aldehyde ER-808993 (138 g, 641
mmol, 1 eq.) in dry THF (1.4 L) at 25.degree. C. was added
Ph.sub.3P.dbd.CMeCO.sub.2Et (256 g, 705.1 mmol, 1.1 eq.). The
solution was stirred at r.t for 18 h. Reaction was not completed
after that time. The solution was heated to reflux for 5 h, after
which TLC showed no aldehyde remaining. The solution was cooled to
room temp and heptane (1.5 L) was added. Precipitation of
by-product Ph.sub.3P.dbd.O was observed. The mixture was filtered
through a silica gel (200 g) plug. The filtrate was concentrated to
a minimum volume (.about.50 mL), and the residue was dissolved in
EtOAc (800 mL).
[0858] Part B:
[0859] To a stirred solution of crude ER-808994 in EtOAc (800 mL)
was added MSA (80 mL). The mixture was stirred at r.t. for 45 min
(until complete by TLC). The amino-ester MSA salt was extracted
from organic solution with water (2.times.300 mL). The aqueous
layer was neutralized to pH 7-8 with sat. NaHCO.sub.3 (300 mL). The
resultant solution was extracted with EtOAc (2.times.400 mL),
washed with brine (300 mL), dried over MgSO.sub.4, and filtered.
The EtOAc solution of the free amino-ester was bubbled with HCl
(gas), and the HCl salt of ER-808995 precipitated and was collected
by filtration under N.sub.2.
[0860] Preparation of Compound ER-803921-01
##STR01061##
[0861] To a stirred solution of ER-808995 (61.2 g, 259.6 mmol, 1
eq.), N-Boc-tBu-Gly-OH (90.1 g, 389.4 mmol, 1.5 eq) and DIEA (158
mL, 906.6 mmol, 3.5 eq) in dry DCM (612 mL) at 25.degree. C. was
added HBTU (147.7 g, 389.4 mmol, 1.5 eq.). The solution was stirred
at room temp for 4 h After concentration, the solid residue was
suspended in TBME (250 mL). The mixture was filtered through a
silica gel bed (.about.120 g), and the filtrate was washed with a
solution of aq. HCl (1N, 200 mL), water (200 mL) and NaHCO.sub.3
(sat, 200 mL). The organic layer was dried over MgSO.sub.4,
filtered and concentrated. The N-Boc-amino-ester ER-808996 was
isolated as an oil. This intermediate was re-dissolved in EtOAc
(120 mL) and MSA (75 mL) was added. The solution was stirred at
room temp for 1 h, at which time the reaction was deemed complete
by TLC. The amino-ester MSA salt was extracted with water
(2.times.250 mL), followed by neutralization with a solution NaOH
(ca. 50%, 300 mL) to pH-8-9. The free amine was extracted with TBME
(2.times.30 mL). The combined organic solution was washed with
water (200 mL) and brine (200 mL). After drying over MgSO.sub.4 and
filtration, HCl (g) was bubbled to obtain the hydrochloride salt of
ER-803921 as a white solid collected by filtration at ca. 5.degree.
C.
[0862] Preparation of Compound ER-808998
##STR01062##
[0863] A stirred suspension of D-pipecolic acid (100.0 g, 0.77 mol,
1 eq.) and Pd(OH).sub.2 (20% wt. Pd, 10 g) in a mixture
MeOH/acetone (2:1 v/v, 1.5 L) was submitted to hydrogenation
(H.sub.2 60 psi) for 24 h. Reaction was monitored by TLC (ethanol)
and deemed complete when no D-pipecolic acid was observed. The
mixture was filtered through a Celite (.about.50 g) bed. The clear
filtrate was concentrated to ca. 100 mL and TBME (50 mL) was added.
ER-808998 was filtered as a white crystalline solid in 88%
yield.
[0864] Preparation of Compound ER-807961
##STR01063##
[0865] To a stirred solution of dipeptide ER-803921 (5.0 g, 16.8
mmol, 1 eq.), N-iPr-pipecolic acid ER-808998 (3.7 g, 21.8 mmols,
1.3 eq.) and HBTU (8.3 g, 21.8 mmols, 1.3 eq.) in 50 mL DCM was
added DIEA (7.3 mL, 41.9 mmols, 2.5 eq.) dropwise at 25.degree. C.
The mixture was stirred for 18 h (overnight) at which time reaction
was deemed complete by TLC (heptane/EtOAc 1:1). The mixture was
concentrated under vacuum and TBME (50 mL) was added. The residual
"thick" oil was separated from the ethereal solution by filtration
through a Celite pad. The filtrate was washed with aq HCl (1M,
3.times.25 mL). The combined aqueous phases were neutralized with
NH.sub.4OH to pH 8-9 in the presence of EtOAc (25 mL). The aqueous
layer was separated and back-extracted with TBME (25 mL). The
combined organic phase was washed with brine and dried over
MgSO.sub.4, filtered, and concentrated to give
tripeptide-amino-ester ER-807961 in 93% yield.
[0866] Preparation of Compound ER-807974
##STR01064##
[0867] To a stirred solution of ester ER-807961 (5.0 g, 16.8 mmol)
in 5:1 THF/H.sub.2O (50 mL) was added LiOH (3.50 g, 83.8 mmol), and
the mixture was stirred at room temperature for 20 h. The reaction
was monitored by TLC (ethanol) and deemed complete when no
ER-807961 was observed. The suspension was acidified with
H.sub.2SO.sub.4 (.about.0.50 mL) to pH 7. The mixture was extracted
with EtOAc (3.times.25 mL). The combined organic solution was
washed with brine (20 mL), dried over MgSO.sub.4, filtered, and
concentrated. The residue was triturated with TBME: 1.8 g (83%) of
thick oil free-base ER-807974 was obtained.
Example 15
Preparation of Compound ER-808367
##STR01065##
[0869] Preparation of Compound 2Z
##STR01066##
[0870] To a suspension of D-pipecolic acid 1Z (750 mg, 5.81 mmol)
in MeOH (23.2 mL) and 2-butanone (11.6 mL) was added Pd(OH).sub.2
(175 mg). Gaseous H.sub.2 (balloon pressure) was charged in and the
reaction mixture was allowed to stir under an H.sub.2 atmosphere
overnight. The reaction solution was then filtered through a bed of
celite, and concentrated to give a crude white solid. The crude
product was subjected to flash chromatography (SiO.sub.2) eluting
with 100% EtOH. This provided compound 2Z (721 mg, white solid) as
a mixture of diastereomers in 67% yield.
[0871] Preparation of Compounds 3Z and 4Z
##STR01067##
[0872] To a solution of 2Z (650 mg, 3.51 mmol) in DMF (8.8 mL) was
added K.sub.2CO.sub.3 (728 mg 5.27 mmol) and p-nitrobenzylbromide
(1.1 g, 5.27 mmol). The reaction mixture was allowed to stir
overnight. The reaction solution was diluted with water and
extracted several times with diethyl ether. The ether extracts were
combined, washed with water and brine. The solution was dried over
MgSO.sub.4, filtered, and concentrated in vacuo. The crude mixture
of diasteomers was then separated by flash chromatography eluting
with 8% EtOAc in hexanes to give each diastereomer as a pale yellow
oil. Compound 3Z (360 mg) was obtained in 32% yield with an
R.sub.f=0.590 (SiO.sub.2) using 30% EtOAc in hexanes. Compound 4Z
(652 mg) was obtained in 58% yield with an R.sub.f=0.482
(SiO.sub.2) using 30% EtOAc in hexanes.
[0873] Preparation of Compound ER-809439
##STR01068##
[0874] To a solution of compound 3Z (320 mg, 1.0 mmol) in MeOH (10
mL) was added Pd(OH).sub.2 (50 mg). Gaseous H.sub.2 (balloon
pressure) was charged in and the reaction mixture was allowed to
stir under an H.sub.2 atmosphere for 3 hours. The reaction solution
was then filtered through a bed of celite, and concentrated to
provide compound ER-809439 (185 mg) as a white solid,
quantitatively. Compound ER-809439, R.sub.f=(SiO.sub.2, 0.292, 100%
EtOH).
[0875] Preparation of Compound ER-809447
[0876] A procedure similar to that used for the preparation of
compound ER-809439 was used. Compound ER-809447,
R.sub.f=(SiO.sub.2, 0.292, 100% EtOH).
[0877] Preparation of Compound ER-808357
##STR01069##
[0878] Compound 49 (9.6 mg, 0.031 mmol), N-sec-butylpipecolic
ER-809439 (5.2 mg, 0.028 mmol), HBTU (12.9 mg, 0.034 mmol), were
combined. DMF (0.28 mL) was added, followed by DIEA (14.9 mL, 0.084
mmol). The solution was stirred at room temperature under nitrogen
for 20 h. The solution was purified directly by RP HPLC to give the
TFA salt of compound ER-808357 (13.6 mg, 82%).
[0879] Preparation of Compound ER-808367
##STR01070##
[0880] The TFA salt of compound ER-088357 (10.4 mg, 0.018 mmol) was
dissolved in 1:2 H.sub.2O/EtOH (0.072 mL/0.144 mL) at room
temperature. LiOH (7.5 g, 0.18 mmol) was added. The suspension was
stirred at room temperature for 19 hours. The solution was purified
directly by RP HPLC to give the TFA salt of compound ER-808367
(10.1 mg, quantitative).
Example 16
Preparation of Compound ER-808368
##STR01071##
[0882] Preparation of Compound ER-808358
##STR01072##
[0883] A procedure similar to that used for the preparation of
compound ER-808357 was used.
[0884] Preparation of Compound ER-808368
##STR01073##
[0885] A procedure similar to that used for the preparation of
compound ER-808367 was used.
Example 17
Preparation of Compound ER-808662
##STR01074##
[0887] Preparation of Compound 5Z
##STR01075##
[0888] To a suspension of D-pipecolic acid 1Z (1.00 g, 7.74 mmol)
in MeOH (31 mL) and 3-methyl-2-butanone (15.5 mL) was added
Et.sub.3N (1.1 mL) and Pd(OH).sub.2 (250 mg). Gaseous H.sub.2
(balloon pressure) was charged in and the reaction mixture was
allowed to stir under an H.sub.2 atmosphere overnight. The reaction
solution was then filtered through a bed of celite, and
concentrated to give a crude white solid. The crude product was
subjected to flash chromatography (SiO.sub.2) eluting with 100%
EtOH. This provided compound 5Z (377.9 mg, white solid) as a single
diastereomer in 24.5% yield. R.sub.f=(SiO.sub.2, 0.280, 100%
EtOH).
[0889] Preparation of Compound ER-808656
##STR01076##
[0890] A procedure similar to that used for the preparation of
compound ER-808357 was used.
[0891] Preparation of Compound ER-808662
##STR01077##
[0892] A procedure similar to that used for the preparation of
compound ER-808367 was used.
[0893] Compounds ER-809638 through ER-809650 were made according to
the procedures for ER-808368 or ER-808662 with the one change:
N--BOC-L-Valine was used in place of N--BOC--N-Methyl-L-Valine
(46). Compounds ER-808998, ER-809439 and 5Z were used as
required.
Example 18
Preparation of Compound ER-808824
##STR01078##
[0895] Preparation of Compound 6Z
##STR01079##
[0896] Compound 48 (325.5 mg, 1.38 mmol), L-N--BOC-valine (300.0
mg, 1.38 mmol), HBTU (628.3 mg, 1.66 mmol), were combined.
CH.sub.2Cl.sub.2 (7 mL) was added, followed by DIEA (0.72 mL, 4.14
mmol). The solution was stirred at room temperature under nitrogen
for 1 hour. The solution was concentrated in vacuo, and the crude
was purified by flash chromatography (SiO.sub.2) eluting with 4%
EtOAc in hexanes. This provided compound 6Z (476.8 mg) as a
colorless oil in 86.7% yield.
[0897] Preparation of Compound 7Z
##STR01080##
[0898] Compound 6Z (450 mg, 1.13 mmol) was dissolved directly in 4N
HO/dioxane (2.8 mL). The reaction was stirred for overnight and
then concentrated in vacuo to give compound 7Z (374.8 mg) as a
white solid, quantitatively.
[0899] Preparation of Compound ER-808815
##STR01081##
[0900] A procedure similar to that used for the preparation of
compound ER-808357 was used.
[0901] Preparation of Compound ER-808824
##STR01082##
[0902] A procedure similar to that used for the preparation of
compound ER-808367 was used.
Example 19
Biological Assays
[0903] In certain embodiments, compounds of the invention were
tested for in vitro and in vivo activity. Screening methods
included standard in vitro cell growth inhibition assays using a
panel of human cancer cell lines, a U937 (ATCC accession number CRL
1593) mitotic block reversibility assay, mouse serum stability
assay, MDR assay, and cytotoxicity assay. In certain other
embodiments, compounds of the invention were evaluated in tumor
xenograft in vivo growth inhibition assays.
[0904] In vitro potency was determined in the MDA-MB-435 cell
growth inhibition assay, and active compounds (IC.sub.50<20 nM)
were evaluated in the reversibility, MDR, and mouse serum stability
assays. In addition, the active compounds were tested in the IMR-90
cytotoxicity assay and in additional cell growth inhibition assays
in a panel of human cancer cell lines, both solid and non-solid
tumors.
[0905] Cell Growth Inhibition Assay:
[0906] Cultured human cancer cells (including breast, prostate,
colon, lung, leukemia, lymphoma and other) were plated in 96-well
plates and grown in the continuous presence of test compounds for
72 or 96 hours. The human cell lines used in this cell growth
inhibition assay, include, but are not limited to, the following
solid tumor cell lines and non-solid tumor cell lines: DLD-1 colon
cancer cells (ATCC accession number CCL-221), DU 145 prostate
cancer cells (ATCC accession number HTB-81), H460 non small cell
lung cancer, HCT-15 colon cancer cells (ATCC accession number
CCL-225), HEL erythroleukemia cells, HL-60 promyelocytic leukemia
cells (ATCC accession number CCL-240), K562 leukemia (ATCC
accession number CCL-243), LOX melanoma, MDA-MB-435 breast cancer
cells, U937 lymphoma cells (ATCC accession number CRL 1593), PANC-1
pancreatic cancer (ATCC accession number CRL-1469), HCC-2998 colon
cancer (NCI-Frederick Cancer DCTD Tumor/Cell Line Repository), HCT
116 colon cancer (ATCC accession number CCL-247), HT-29 colon
cancer (ATCC accession number HTB-38), LoVo colon cancer (ATCC
accession number CCL-229), SW-480 colon cancer (ATCC accession
number CCL-228), SW-620 colon cancer (ATCC accession number
CCL-227) and COLO-205 colon cancer (ATCC accession number CCL-222).
For monolayer cultures, growth was assessed using modifications
(Amin et al, Cancer Res., 47: 6040-6045, 1987) of a methylene
blue-based microculture assay (Finlay et al, Anal. Biochem., 139:
272-277, 1984). Absorbances at 620 and 405 nm were measured on a
Titertek Multiscan MCC/340 plate reader and absorbances at 405 nm
were subtracted from absorbances at 620 nm. For suspension
cultures, growth was assessed using a
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide-based
assay (Mosmann et al, J. Immunol. Methods, 65: 55-63, 1983)
modified as follows. After 4 days of incubation with test
compounds, sterile-filtered
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide was
added to each well (final concentration, 0.5 mg/ml), and plates
were incubated at 37.degree. C. for 4 h. Acid-isopropanol (0.1 N
HCl in isopropanol, 150 mL) was then added to each well, and the
resultant formazan crystals were dis-solved by gentle mixing.
Absorbances at 540 nm were measured on a Titertek Multiscan MCC/340
plate reader.
[0907] Mitotic Block Reversibility Assay was Performed as
Described
[0908] (See, U.S. Pat. No. 6,214,865 B1, by B. Littelfield et al,
Apr. 10, 2001; which is incorporated herein be reference in its
entirety).
[0909] Briefly, U937 (ATCC accession number CRP 1593) were exposed
to various concentration of compounds for 12 hours. The compounds
were washed away and the cells were allowed to recover for an
additional 10 hours. The cells were collected by centrifugation and
fixed overnight in 70% ethanol. The cells were washed in PBS,
incubated with RNase A and stained with propidium iodide. Single
channel flow cytometry was performed on a Becton Dickinson FACScan;
the collection and analysis of data were performed using Becton
Dickinson CELLQuest software. Doublet events were eliminated from
analyses by proper gating on FL2-W/FL2-A primary plots before
histogram analysis of DNA content (measured as FL2-A).
[0910] Determination of Activity In Vitro Utilizing the MDR
Assay.
[0911] This is a modification of the standard cell growth
inhibition assays described above. Two cultured human cancer cell
lines were used: human uterine sarcoma MDR negative MES-SA cells
(ATCC accession number CRL-1976) and human uterine sarcoma
MDR-positive MES-SA/Dx5 cells (ATCC accession number CRL-1977).
Cells were plated in a 96-well microtiter plates at a density of
7500 cells/well. The cells were incubated in the presence or
absence of test compounds for 96 hours. Cell growth was assessed
using modifications (Amin et al, Cancer Res., 47: 6040-6045, 1987)
of a methylene blue-based microculture assay (Finlay et al, Anal.
Biochem., 139: 272-277, 1984). Absorbances at 620 and 405 nm were
measured on a Titertek Multiscan MCC/340 plate reader and
absorbances at 405 nm were subtracted from absorbances at 620 nm.
The ratio of the concentrations of the compounds inhibiting the
growth of cells by 50% was calculated and used to estimate the
sensitivity of the compounds to MDR (multidrug-resistance, or
P-glycoprotein-mediated drug efflux). In some cases, a different
pair of cell lines was used: MDR-negative murine leukemia cells
P388/S, and MDR-positive murine leukemia cells P388/VMDRC.04. Cells
were plated in a 96-well microtiter plates at a density of 4000
cells/well. The cells were incubated in the presence or absence of
test compounds for 72 hours. Cell growth was assessed using a
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide-based
assay (Mosmann et al, J. Immunol. Methods, 65: 55-63, 1983)
modified as follows. After 3 days of incubation with test
compounds, sterile-filtered
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide was
added to each well (final concentration, 0.5 mg/ml), and plates
were incubated at 37.degree. C. for 4 h. Acid-isopropanol (0.1 N
HCl in isopropanol, 150 mL) was then added to each well, and the
resultant formazan crystals were dis-solved by gentle mixing.
Absorbances at 540 nm were measured on a Titertek Multiscan MCC/340
plate reader.
[0912] Stability to Esterase Degradation was Determined in the
Mouse Serum Stability Assays.
[0913] The enzymatic activity of mouse serum can result in
inactivation of compounds in vivo despite their promising in vitro
activity. A modification of the standard cell growth inhibition
assays described above was used to determine stability of the test
compounds to esterase degradation. Human breast carcinoma cell line
MDA-MB-435 or human prostate carcinoma cell line DU 145 were used.
The cells were plated in a 96-well microtiter plates at a density
of 7500 cells/well. Prior to adding the test compounds to cells in
the cell growth inhibition assay, the test compounds were incubated
in 100% mouse serum or normal growth medium for 6 hours at
37.degree. C. After that, the test compounds were added to the
96-well microtiter plates containing the cells. The cells were
incubated in the presence or absence of test compounds for 96
hours. Cell growth was assessed using modifications (Amin et al,
Cancer Res., 47: 6040-6045, 1987) of a methylene blue-based
microculture assay (Finlay et al, Anal. Biochem., 139: 272-277,
1984). Absorbances at 620 and 405 nm were measured on a Titertek
Multiscan MCC/340. Ability of test compounds to inhibit cell growth
after compounds' exposure to mouse serum esterases was
assessed.
[0914] Cytotoxicity Assay.
[0915] To determine toxicity of compounds against normal,
non-dividing cells, quiescent IMR-90 normal human fibroblasts (ATCC
accession number CCL-186) were used. IMR-90 cells were plated in a
96-well microtiter plate format and grown to confluency (for 72
hours). After the 72-hour growth, the cells were washed and the
medium was replaced from normal medium containing 10% fetal bovine
serum to medium containing low concentration of serum (0.1%). Cells
were made quiescent by incubation in 0.1% serum-containing growth
medium for additional 72 hours. Cells were incubated with the test
compounds for 24 hours. Cellular ATP levels were measured using a
ViaLight HS kit (LumiTech Ltd). A cytotoxic compound carbonyl
cyanide was used in all assays as a positive control for
cytotoxicity.
[0916] Determination of Antitumor Activity In Vivo in Mice.
[0917] In vivo tumor xenograft studies were performed in
immunocompromised (nude) mice. Mice (female Ncr athymic) were
implanted subcutaneously with human tumor xenografts (including
breast MDA-MB-435, colon COLO-205, HCT-15, HCT-116, HCC-2998,
HT-29, SW-620, DLD-1, LoVo, melanoma LOX, lung H522, pancreatic
PANC-1). After the xenografts reached an average size of 75-200
mm.sup.3 or 400-600 mm.sup.3, the animals were weighed and randomly
divided into groups of 8-10 on the first day of compound
administration. Test compounds were administered intravenously or
intraperitoneally. Tumor and body weight measurements were done
twice weekly.
* * * * *