Patent ID: 7319170

Claim:
A compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein: R 1 is selected from the group consisting of H, Cl, F, and C 1-4 alkyl, where C 1-4 alkyl is optionally substituted with 1-3 halogen atoms independently selected from F and Cl; R 2 is selected from the group consisting of H, Cl, F, C 1-4 alkyl, OC 1-4 alkyl, and —S(O) 2 CH 3 , where C 1-4 alkyl and OC 1-4 alkyl are optionally substituted with 1-3 halogen atoms independently selected from F and Cl; R 3 , R 4 and R 5 are independently selected from the group consisting of hydrogen, F, Cl, C 1-3 alkyl, and —OC 1-3 alkyl, where C 1-3 alkyl and —OC 1-3 alkyl are optionally substituted with 1-3 halogens independently selected from F and Cl; X and Y are each independently selected from the group consisting of O, S, SO, and SO 2 ; and n represents an integer selected from 1, 2, 3, and 4.