Patent ID: 8865732

Claim:
A compound of Formula I: wherein: X or Y, whichever is present, is selected from the group consisting of O and S; R 1 is pyridine or pyrazine, and is substituted with one or more halo, amino, aminocarbonyl, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl, D, —OH, —CN, MeNH—, Me 2 N—, acetyl, acetylamino, aminosulfonyloxy, C1-C4 alkoxycarbonyl, or carboxyl; R 2 is optionally substituted heteroaryl; and R 3 is unsubstituted phenyl or phenyl substituted with one, two or three substituents; or a pharmaceutically acceptable salt thereof.