IP Library Granted Patent US 9,597,315
Granted Patent B2
US 9,597,315 · App. 14/802,802 · Granted Mar 21, 2017

1-heteroaryl-3-azabicyclo[3.1.0]hexanes, methods for their preparation and their use as medicaments

Inventors: Phil Skolnick (Edgewater, NJ); Zhengming Chen (Belle Meade, NJ)
Assignee: EUTHYMICS BIOSCIENCE, INC.
A61K31/403A61K31/00A61K31/404A61K31/428A61K31/4439A61K31/4709C07D401/04C07D403/04C07D405/04C07D409/04C07D417/04
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Quick Facts
Patent No.
US 9,597,315
App. No.
14/802,802
Granted
Mar 21, 2017
Kind
B2
Abstract

The invention provides novel 1-heteroaryl-3-azabicyclo[3.1.0]hexanes, and related processes and intermediates for preparing these compounds, as well as compositions and methods employing these compounds for the treatment and/or prevention of central nervous system (CNS) disorders, including but not limited to depression and anxiety.

Claims (91)

1. A method for treating a central nervous system (CNS) disorder, or to alleviate one or more symptom(s) associated with the CNS disorder, in a mammalian subject, comprising administering to said subject an effective amount of a compound of the following Formula I:

or a pharmaceutically acceptable salt thereof, wherein:

Ar is a heterocyclic aryl group selected from furan, methylfuran, pyrrole, imidazole, pyrazole, triazole, tetrazole, thiazole, isothiazole, methoxypyridine, pyridazine, pyrazine, triazine, indole, methylindole, benzofuran, benzothiophene, benzothiazole, isoquinoline, cinnoline, phthalazine, quinazoline, chromane and isochromane, and Ar is either unsubstituted or substituted with one or more substituents independently selected from fluoro, chloro, bromo, iodo, —NO 2 , —CN, —NH 2 , carboxy, C 2-8 alkenyl, C 2-8 alkynyl, halo(C 1-8 )alkyl, hydroxy, trifluoromethyl, C 3-8 cycloalkyl, C 1-3 alkoxy, C 1-3 alkoxy(C 1-3 )alkyl, carboxy(C 1-3 )alkyl, C 1-3 alkanoyl, halo(C 1-3 )alkoxyl, C 1-8 alkylamino, and di(C 1-8 )alkylamino; and

R 1 is selected from hydrogen, unsubstituted C 1-10 alkyl, C 3-8 cycloalkyl, C 2-10 alkenyl, and C 3-10 alkynyl, and substituted C 1-10 alkyl, C 3-10 alkenyl and C 3-10 alkynyl wherein the substituent is one or more of hydroxy, cyano, halogen, C 1-6 alkoxy, aryl substituted C 1-6 alkoxy, aryloxy, aryloxy substituted with one or more halogens, C 1-6 alkyl, C 1-6 alkyl independently substituted with one or more of cyano and halogen, C 1-4 alkoxy, and C 1-4 haloalkoxy, and

wherein the CNS disorder is selected from depression, an anxiety disorder, an attention deficit disorder, obesity, substance abuse, PMDD (Premenstrual dysphoric disorder) and a cognitive disorder.

2. The method according to claim 1 , wherein the compound has the following Formula Ia:

or a pharmaceutically acceptable salt thereof, wherein:

Ar is furan, methylfuran, fluorobenzothiophene, methoxypyridine, benzofuran, benzothiophene, chlorobenzothiophene, benzothiazole, indole, or methylindole; and

R 1 is hydrogen, methyl, ethyl, propyl, or isopropyl.

3. The method according to claim 2 , wherein the compound is selected from the group consisting of:

1-(5-methylfuran-2-yl)-3-azabicyclo[3.1.0]hexane;

1-(6-methoxypyridin-3-yl)-3-azabicyclo[3.1.0]hexane;

1-(6-methoxypyridin-3-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(benzofuran-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(benzofuran-3-yl)-3-azabicyclo[3.1.0]hexane;

1-(benzofuran-3-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-methyl-2-(3-methyl-3-azabicyclo[3.1.0]hexan-1-yl)-1H-indole;

2-(3-ethyl-3-azabicyclo[3.1.0]hexan-1-yl)-1-methyl-1H-indole;

2-(3-isopropyl-3-azabicyclo[3.1.0]hexan-1-yl)-1-methyl-1H-indole;

1-methyl-5-(3-methyl-3-azabicyclo[3.1.0]hexan-1-yl)-1H-indole;

5-(3-ethyl-3-azabicyclo[3.1.0]hexan-1-yl)-1-methyl-1H-indole;

5-(3-isopropyl-3-azabicyclo[3.1.0]hexan-1-yl)-1-methyl-1H-indole;

1-(5-chlorobenzo[b]thiophen-3-yl)-3-azabicyclo[3.1.0]hexane;

1-(5-chlorobenzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(5-chlorobenzo[b]thiophen-3-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(benzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane;

1-(benzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane;

1-(6-fluorobenzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane;

1-(6-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane;

1-(5-fluorobenzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane;

1-(5-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane; and

2-(3-azabicyclo[3.1.0]hexan-1-yl)-benzo[d]thiazole;

or a pharmaceutically acceptable salt thereof.

4. The method according to claim 2 or a pharmaceutically acceptable salt thereof, wherein Ar is benzothiophene, fluorobenzothiophene, or chlorobenzothiophene.

5. The method according to claim 2 , wherein the compound is selected from the group consisting of:

1-(5-chlorobenzo[b]thiophen-3-yl)-3-azabicyclo[3.1.0]hexane;

1-(5-chlorobenzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(5-chlorobenzo[b]thiophen-3-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

1-(benzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane;

1-(benzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane;

1-(6-fluorobenzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane;

1-(6-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane;

1-(5-fluorobenzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane; and

1-(5-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane;

or a pharmaceutically acceptable salt thereof.

6. The method according to claim 5 , wherein the compound is 1-(benzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

7. The method according to claim 6 , wherein the compound is 1-(benzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane hydrochloride.

8. The method according to claim 5 , wherein the compound is (1S,5S)-1-(benzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

9. The method according to claim 8 , wherein the compound is (1S,5S)-1-(benzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane hydrochloride.

10. The method according to claim 5 , wherein the compound is (1R,5R)-1-(benzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

11. The method according to claim 10 , wherein the compound is (1R,5R)-1-(benzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane hydrochloride.

12. The method according to claim 5 , wherein the compound is 1-(benzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

13. The method according to claim 12 , wherein the compound is 1-(benzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane hydrochloride.

14. The method according to claim 5 , wherein the compound is (1S,5S)-1-(benzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

15. The method according to claim 14 , wherein the compound is (1S,5S)-1-(benzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane hydrochloride.

16. The method according to claim 5 , wherein the compound is (1R,5R)-1-(benzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

17. The method according to claim 16 , wherein the compound is (1R,5R)-1-(benzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane hydrochloride.

18. The method according to claim 5 , wherein the compound is 1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

19. The method according to claim 18 , wherein the compound is 1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane hydrochloride.

20. The method according to claim 5 , wherein the compound is (1S,5S)-1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

21. The method according to claim 20 , wherein the compound is (1S,5S)-1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane hydrochloride.

22. The method according to claim 5 , wherein the compound is (1R,5R)-1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

23. The method according to claim 22 , wherein the compound is (1R,5R)-1-(6-fluorobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane hydrochloride.

24. The method according to claim 5 , wherein the compound is 1-(6-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

25. The method according to claim 5 , wherein the compound is 1-(5-fluorobenzo[b]thiophen-2-yl)-3-aza-bicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

26. The method according to claim 5 , wherein the compound is 1-(5-fluorobenzo[b]thiophen-2-yl)-3-methyl-3-aza-bicyclo[3.1.0]hexane or a pharmaceutically acceptable salt thereof.

27. The method according to claim 1 , wherein the compound is selected from the group consisting of:

N,N-dimethyl-2-(3-methyl-3-azabicyclo[3.1.0]hexan-1-yl)benzo[b]thiophen-5-amine;

1-(5-bromobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane;

1-(5-bromobenzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

2-(3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-5-amine;

2-(3-ethyl-3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-5-amine;

2-(3-isopropyl-3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-5-amine;

1-(6-bromobenzo[b]thiophen-2-yl)-3-azabicyclo[3.1.0]hexane;

1-(6-bromobenzo[b]thiophen-2-yl)-3-methyl-3-azabicyclo[3.1.0]hexane;

2-(3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-6-amine;

N,N-dimethyl-2-(3-methyl-3-azabicyclo[3.1.0]hexan-1-yl)benzo[b]thiophen-6-amine;

2-(3-ethyl-3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-6-amine; and

2-(3-isopropyl-3-azabicyclo[3.1.0]hexan-1-yl)-N,N-dimethylbenzo[b]thiophen-6-amine;

or a pharmaceutically acceptable salt thereof.

28. The method according to claim 1 , comprising administering to said subject a pharmaceutical composition comprising said compound of Formula I or said pharmaceutically acceptable salt thereof.

29. The method according to claim 2 , comprising administering to said subject a pharmaceutical composition comprising said compound of Formula Ia or said pharmaceutically acceptable salt thereof.

30. The method according to claim 3 , comprising administering to said subject a pharmaceutical composition comprising said compound or said pharmaceutically acceptable salt thereof.

31. The method according to claim 5 , comprising administering to said subject a pharmaceutical composition comprising said compound or said pharmaceutically acceptable salt thereof.

32. The method of claim 2 , wherein the CNS disorder is depression.

33. The method of claim 2 , wherein the CNS disorder is an anxiety disorder.

34. The method of claim 2 , wherein the CNS disorder is an attention deficit disorder.

35. The method of claim 2 , wherein the CNS disorder is obesity.

36. The method of claim 2 , wherein the CNS disorder is substance abuse.

37. The method of claim 2 , wherein the CNS disorder is PMDD (Premenstrual dysphoric disorder).

38. The method of claim 2 , wherein the CNS disorder is a cognitive disorder.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2018
From: EUTHYMICS BIOSCIENCE, INC.
To: ETHISMOS RESEARCH, INC.
Reel/Frame 045252/0870 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2017
From: NEUROVANCE, INC.
To: EUTHYMICS BIOSCIENCE, INC.
Reel/Frame 041085/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2016
From: EUTHYMICS BIOSCIENCE, INC.
To: NEUROVANCE, INC.
Reel/Frame 040512/0162 →
Continuity (9)
Continuation 13856431 · Apr 3, 2013
Continuation 13669438 · Nov 5, 2012
Continuation 13425371 · Mar 20, 2012
Continuation 13221892 · Aug 30, 2011
Continuation 13048852 · Mar 15, 2011
Continuation 12895788 · Sep 30, 2010
Continuation 12135053 · Jun 6, 2008
Provisional Application 60933631 · Jun 6, 2007
Related Publication 20160022634A1 · Jan 28, 2016