Patent ID: 8101644

Claim:
A compound of the formula (I′): wherein in which R 4 and R 5 are independently hydrogen or lower alkyl, R 6 is hydrogen or lower alkyl optionally substituted, r is 0; A is phenyl, and B is heterocyclyl; R 1a and R 1b are independently halogen, hydroxy, lower alkyl optionally substituted, lower alkenyl optionally substituted, lower alkynyl optionally substituted, lower alkoxy optionally substituted, lower alkylthio optionally substituted, acyl optionally substituted, carboxy, lower alkoxycarbonyl optionally substituted, carbamoyl optionally substituted, lower alkylcarbamoyl optionally substituted, amino optionally substituted, sulfamoyl optionally substituted, cyano or nitro; m and p are independently an integer 0 to 2; R 2 is alkyl optionally substituted; and R 3 is hydrogen or lower alkyl optionally substituted; or a pharmaceutically acceptable salt thereof.