IP Library Granted Patent US 9,532,974
Granted Patent B2
US 9,532,974 · App. 14/837,023 · Granted Jan 3, 2017

Nicotinic receptor non-competitive antagonists

Inventors: Srinivasa Rao Akireddy (Winston-Salem, NC); Balwinder Singh Bhatti (Winston-Salem, NC); Ronald Joseph Heemstra (Lewisville, NC); Matt S. Melvin (Winston-Salem, NC); Jason Speake (Winston-Salem, NC); Yunde Xiao (Clemmons, NC); Daniel Yohannes (Winston-Salem, NC)
Assignee: Targacept, Inc.
A61K31/40A61K31/13A61K31/397C07C211/38C07C211/41C07D205/04C07D295/033
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Quick Facts
Patent No.
US 9,532,974
App. No.
14/837,023
Granted
Jan 3, 2017
Kind
B2
Abstract

The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.

Claims (12)

1. A method for the treatment of nicotine addiction or smoking cessation comprising the administration of a compound of Formula I:

wherein

each of R 1 and R 2 individually is H, C 1-6 alkyl, or aryl-substituted C 1-6 alkyl, or R 1 and R 2 combine with the nitrogen atom to which they are attached to form a 3- to 8-membered ring, which ring may be optionally substituted with C 1-6 alkyl, aryl, C 1-6 alkoxy, or aryloxy substituents;

R 3 is H, C 1-6 alkyl, or C 1-6 alkoxy-substituted C 1-6 alkyl;

each of R 4 , R 5 , R 6 , and R 7 individually is H, C 1-6 alkyl, or C 1-6 alkoxy;

L 1 is a linker species selected from the group consisting of CR 8 R 9 , CR 8 R 9 CR 10 R 11 , and O;

L 2 is a linker species selected from the group consisting of CH 2 , CH 2 CH 2 , CH 2 CH 2 CH 2 , and CH 2 CH 2 CH 2 CH 2 ;

each of R 8 , R 9 , R 10 , and R 11 individually is hydrogen or C 1-6 alkyl; and

the dashed line indicates an optional double bond;

or a pharmaceutically acceptable salt thereof.

2. A method for the treatment of nicotine addiction or smoking cessation comprising the administration of a compound

or a pharmaceutically acceptable salt thereof.

Continuity (5)
Continuation 14320782 · Jul 1, 2014
Continuation 13699757
Provisional Application 61375606 · Aug 20, 2010
Provisional Application 61349027 · May 27, 2010
Related Publication 20160008323A1 · Jan 14, 2016