Patent ID: 8735421

Claim:
A compound of the formula (Ia): wherein: X′ is selected from the group consisting of —CH(R 9 )—, —CH(R 9 )-alkylene, and —CH(R 9 )-alkenylene-; R 1 and R 1 ′ are independently selected from the group consisting of: hydrogen and alkyl; R 2 is selected from the group consisting of: hydrogen, alkyl, hydroxyalkyl, and alkyloxyalkyl; R 9 is selected from the group consisting of hydrogen and alkyl; R A and R B taken together form either a fused 6-membered aryl ring that is unsubstituted or substituted by one or more R a groups, or a fused 6-membered saturated ring that is unsubstituted or substituted by one or more R c groups; R a is selected from the group consisting of: fluoro, alkyl, haloalkyl, alkoxy, and —N(R 9 ) 2 ; and R c is selected from the group consisting of: halogen, hydroxy, alkyl, alkenyl, haloalkyl, alkoxy, alkylthio, and —N(R 9 ) 2 ; or a pharmaceutically acceptable salt thereof.