Patent ID: 7872126

Claim:
A compound of the formula (I): wherein R 1 is an alkoxycarbonyl group or an alkoxycarbonyl group substituted by 1 to 5 substituents selected independently from a carboxyl group, an alkoxycarbonyl group, a halogen atom, a hydroxy group and a cycloalkyl group; R 2 is an alkyl group; R 3 is a hydrogen atom; R 4 is an alkylene group; R 5 is a group of the formula: R 10 is a phenyl group substituted by 1 to 3 substituents selected from a cyano group, an alkyl group, an alkyl group substituted by one or more halogen atom, and an alkoxy group; Ring A is a pyrimidinyl group or a pyridyl group; R 11 is an alkoxy group substituted by a carboxyl group, a cyano group, a hydroxy group, an alkoxy group, an alkylthio group or an alkylsulfonyl group; a mono- or di-alkylamino group; or a mono- or di-alkylamino group substituted by an alkoxy group; R 6 and R 9 each are a hydrogen atom; R 7 is an alkyl group, an alkyl group substituted by one or more halogen atom, an alkoxy group, or a mono- or di-alkylamino group; and R 8 is a hydrogen atom; or a pharmaceutically acceptable salt thereof.