Patent ID: 7989660

Claim:
A compound according to the formula IA: or a stereoisomer, pharmaceutically acceptable salt, ester, or prodrug thereof, wherein D is absent or selected from the group consisting of (1) substituted or unsubstituted C 3 -C 8 -cycloalkyl; (2) substituted or unsubstituted aryl; (3) substituted or unsubstituted heterocyclyl; and (4) substituted or unsubstituted heteroaryl; Y is selected from the group consisting of (1) substituted or unsubstituted C 3 -C 8 -cycloalkyl; (2) substituted heterocyclyl; and (3) substituted heteroaryl; R 4 is H or substituted or unsubstituted C 1 -C 6 -alkyl; A is selected from the group consisting of (1) —C(R 1a , R 2a )OR 3a ; and (2) —C(R 1a , R 2a )N(R 4a , R 5a ); wherein R 1a , R 2a , R 3a , R 4a , and R 5a are independently selected from the group consisting of (1) H; and (2) substituted and unsubstituted C 1 -C 6 -alkyl.