Patent ID: 8217076

Claim:
A compound of Formula (XIX) wherein X═O or NR 6 , wherein R 6 ═H, lower alkyl, or lower arylalkyl; G=S, O, or NR 9 , wherein R 9 ═H, lower alkyl, or lower arylalkyl; Q, Y, W, Z are, independently, N or CH, wherein at least one of Q, Y, W, and Z is CH; R 1 ═H, C(O)(CH 2 ) 6 CH 3 , C(O)R 7 (wherein R 7 =lower alkyl, lower aryl, or lower arylalkyl), R 2 is H, lower alkyl, or lower arylalkyl; R 3 and R 4 is lower alkyl; R 5 is H; or a pharmaceutically acceptable salt, prodrug, or stereoisomer thereof.