Patent ID: 8586624

Claim:
A compound of Formula I or a pharmaceutically acceptable salt or stereoisomer thereof: wherein: X and Y are selected from the group consisting of S or CH, provided that when X is S, Y must be CH and when X is CH, Y must be S; Ar is selected from the group consisting of phenyl and thiophen-yl; R 1 is selected from the group consisting of hydrogen, unsubstituted imidazolyl, substituted imidazolyl, carbamoyl, chloro, bromo, fluoro, hydroxy, and methoxy; R 2 is selected from the group consisting of hydrogen, methyl, chloro, fluoro, hydroxy, methoxy, ethoxy, propoxy, carbamoyl, dimethylamino, amino, formamido, and trifluoromethyl; R 3 is selected from the group consisting of hydrogen, methyl, methoxy, chloro, and fluoro; and R 4 is selected from the group consisting of CONH 2 , NHSO 2 CH 3 , hydroxy, chloro, and substituted and unsubstituted imidazolyl.