Patent ID: 7635718

Claim:
A compound of Formula (II): wherein X is selected from a covalent bond, S, or O; Y is S or O; -----W----- represents a group selected from —CH═, —CH 2 —, —CH 2 —CH 2 —, —CH 2 —CH═, and —CH═CH—; Z is selected from O, CH, and CH 2 , provided when Y is O, Z is O; R 1 is selected from H, C 1-3 alkyl, C 1-3 alkoxy, halo, and NR a R b wherein R a and R b are independently H or C 1-3 alkyl; R 2 is H; R 3 and R 4 are independently selected from H, halo, cyano, hydroxy, C 2-4 acyl, C 1-5 alkyl, C 1-4 alkoxy, and NR c R d wherein R c and R d are independently H or C 1-3 alkyl, provided that R 3 and R 4 are not both H; n is 1 or 2; or a pharmaceutically acceptable salt thereof.