Patent ID: 7678917

Claim:
A compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein: R 1′ is selected from the group consisting of: (1) cyano, (2) C 3-7 cycloalkyl-C 1-6 alkoxy, (3) hydroxy, (4) C 1-6 alkoxy, (5) halo C 1-6 alkoxy, (6) hydroxy-C 2-6 alkoxy-, (7) mono- or di-C 1-6 alkyl substituted amino, (8) (C 1-6 alkylsulfonyl)(C 1-6 alkyl)amino-, and (9) heterocyclyl; R 1″ is hydrogen; or R 1′ and R 1″ together with the same ring carbon atom to which they are attached, form a carbonyl group; R 2 is hydrogen; R 3 is hydrogen; X is phenylene optionally substituted by one or more substituents independently selected from the group consisting of C 1-6 alkyl, halogen, and cyano; X 1 is thienyl; Y is pyridyl, morpholinyl, pyrazinyl, or pyrrolidinyl wherein one or two carbon atoms of said pyridyl, morpholinyl, pyrazinyl, or pyrrolidinyl is replaced with a carbonyl group; Y 1 is hydrogen or halogen; m is 0 or 1; and n is 0.