Patent ID: 8314100

Claim:
A compound of the formula (1), or pharmaceutically acceptable salts thereof, wherein X is C—R 7 ; Y is C—H; for the combination of variables R 1 and R 2 : R 1 is hydrogen, C 1 -C 3 alkoxy, C 1 -C 3 alkyl or halogen and R 2 is F; or R 1 is F and R 2 is hydrogen, C 1 -C 3 alkoxy, C 1 -C 3 alkyl or halogen; R 3 is C 1 -C 3 alkyl; R 4 is hydrogen, C 1 -C 3 alkoxy, C 1 -C 3 alkyl, or halogen; R 5 is H; R 6 is H, C 1 -C 3 alkoxy, or C 1 -C 3 alkyl; and R 7 is H or C 1 -C 3 alkoxy.