US2001029263A1PendingUtilityA1
Novel pyrrolidine carboxylate hair revitalizing agents
Est. expiryJun 4, 2017(expired)· nominal 20-yr term from priority
A61P 17/14A61K 8/4913A61K 31/4439A61K 31/426A61K 2800/70A61K 31/4025A61K 31/4545A61K 31/401A61Q 7/00A61K 31/445A61K 31/40C07D 401/06C07D 417/12A61K 31/00C07D 401/12A61K 45/06
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Claims
Abstract
This invention relates to methods of treating hair loss, through hair revitalization and germination, by administering non-immunosuppresive pyrrolidine carboxylate compounds.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method of revitalizing hair growth which comprises: administering to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
2 . The method of claim 1 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is selected from the group consistent of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino:
X is selected from the group consisting of oxygen, sulphur, methylene, (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; Z may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
3 . The method of claim 1 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 1 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
4 . The method of claim 1 wherein the pyrrolidine carboxylate compound is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E-enyl (2S)-1-(3,3,-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3,dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])entyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thiazolyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
2-(3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propy (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidiniecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, and pharmaceutically acceptable salts, hydrates, and mixtures thereof.
5 . A method of promoting hair germination which comprises: administrating to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
6 . The method of claim 5 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is selected from the group consisting of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 9 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-, 3-, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino:
X is selected from the group consisting of oxygen, sulfur, methylene (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; Z may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
7 . The method of claim 5 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
8 . The method of claim 5 wherein the pyrrolidine carboxylate is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E)-enyl (2S)-1-(3,3,-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3,dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propy (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopethyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])entyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thiazolyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
2-(3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) -pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, and pharmaceutically acceptable salts, hydrates, or mixtures thereof.
9 . A method of preventing hair loss which comprises: administering to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
10 . The method of claim 9 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is selected from the group consisting of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino:
X is selected from the group consisting of oxygen, sulfur, methylene (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; A may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
11 . The method of claim 9 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 2 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 9 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
12 . The method of claim 9 wherein the pyrrolidine carboxylate is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E)-enyl (2S)-1-(3,3,-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3,dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])entyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thiazolyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
2-3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, or pharmaceutically acceptable salts, hydrates, and mixtures thereof.
13 . A method of treating alopecia which comprises: administering to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
14 . The method of claim 13 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is selected from the group consisting of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino:
X is selected from one group consisting of oxygen, sulphur, methylene (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 , alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; Z may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
15 . The method of claim 13 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 1 , wherein said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
16 . The method of claim 13 wherein the pyrrolidine carboxylate compound is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E)-enyl (2S)-1-(3,3,-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thiazolyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
2-(3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) -pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, and pharmaceutically acceptable salts, hydrates, and mixtures thereof.
17 . A method of treating hair loss which comprises: administering to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
18 . The method of claim 17 wherein the pyrrolidine carboxylate is a compound of the formula
wherein
R 1 is selected from the group consisting of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
X is selected from the group consisting of oxygen, sulphur, methylene (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; Z may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
19 . The method of claim 17 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 9 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
20 . The method of claim 17 wherein the pyrrolidine carboxylate compound is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])entyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thiazolyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
2-(3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) -pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, and pharmaceutically acceptable salts, hydrates, and mixtures thereof.
21 . A method of treating hair loss associated with cancer therapy, wherein the cancer therapy is selected from the group consisting of radiation and chemotherapy, wherein said method comprises: administering to an animal an effective amount of a non-immunosuppressive pyrrolidine carboxylate compound.
22 . The method of claim 21 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is selected from the group consisting of a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 1 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, Ar 1 , where said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino:
X is selected from the group consisting of oxygen, sulphur, methylene (CH 2 ), or H 2 ;
Y is selected from the group consisting of oxygen or NR 2 , where R 2 is hydrogen or C 1 -C 6 alkyl; and
Z is selected from the group consisting of C 2 -C 6 straight or branched chain alkyl or alkenyl,
wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cycloalkyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, and Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, and phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; Z may also be the fragment:
wherein
R 3 is a C 1 -C 9 straight or branched alkyl # 1 -C 8 optionally substituted with C 3 -C 8 cycloalkyl, or Ar 1 as defined above, and unsubstituted Ar 1 ;
X 2 is O or NR 5 , where R 5 is selected from the group consisting of hydrogen, C 1 -C 6 straight or branched alkyl and alkenyl;
R 4 is selected from the group consisting of phenyl, benzyl, C 1 -C 5 straight or branched alkyl or alkenyl, and C 1 -C 5 straight or branched alkyl or alkenyl substituted with phenyl; or pharmaceutically acceptable salts or hydrates thereof.
23 . The method of claim 21 wherein the pyrrolidine carboxylate is a compound of the formula:
wherein
R 1 is a C 1 -C 9 straight or branched chain alkyl or alkenyl group optionally substituted with C 3 -C 8 cycloalkyl, C 3 or C 5 cycloalkyl, C 5 -C 7 cycloalkenyl, or Ar 1 , wherein said alkyl, alkenyl, cycloalkyl or cycloalkenyl groups may be optionally substituted with C 1 -C 4 alkyl, C 1 -C 4 alkenyl, or hydroxy, and where Ar 1 is selected from the group consisting of 1-naphthyl, 2-naphthyl, 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro, trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino;
Z is a C 2 -C 6 straight or branched chain alkyl or alkenyl, wherein the alkyl chain is substituted in one or more positions with Ar 1 as defined above, C 3 -C 8 cyclolakyl, cycloalkyl connected by a C 1 -C 6 straight or unbranched alkyl or alkenyl chain, or Ar 2 where Ar 2 is selected from the group consisting of 2-indolyl, 3-indolyl, 2-furyl, 3-furyl, 2-thiazolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, or phenyl, having one to three substituents which are independently selected from the group consisting of hydrogen, halo, hydroxyl, nitro trifluoromethyl, C 1 -C 6 straight or branched alkyl or alkenyl, C 1 -C 4 alkoxy or C 1 -C 4 alkenyloxy, phenoxy, benzyloxy, and amino; or pharmaceutically acceptable salts or hydrates thereof.
24 . The method of claim 21 wherein the pyrrolidine carboxylate compound is selected from the group consisting of:
3-phenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3,4,5-trimethoxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4,5-methylenedioxyphenyl)-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-cyclohexyl-1-prop-2-(E)-enyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
(1R)-1,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-furanyl])ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2-[2-thienyl])entyl-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-phenyl-1propyl (2S)-1-(1,2-dioxo-2,phenyl)ethyl-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-propyl (2S)-1-(3,3-dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2,5-dimethoxyphenyl)-1-prop-2-(E)-enyl(2S)-1-(3,3-dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
2-(3,4,5-trimethoxyphenyl)-1-ethyl (2S)-1-(3,3-dimethyl-1,2dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(2-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(4-Pyridyl)-1-propyl(2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-phenyl-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexylethyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-tert-butyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3,3-diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxopentyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-1-(2-cyclohexyl-1,2-dioxoethyl)-2-pyrrolidinecarboxylate,
3-(3-Pyridyl)-1-propyl (2S)-N-([2-thienyl]glyoxyl) pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(3,3-dimethyl-1,2-dioxobutyl)-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-cyclohexylglyoxyl-2-pyrrolidinecarboxylate,
3,3-Diphenyl-1-propyl (2S)-1-(2-thienyl)glyoxyl-2-pyrrolidinecarboxylate, and pharmaceutically acceptable salts, hydrates, and mixtures thereof.Join the waitlist — get patent alerts
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