| abstract |
Formula (I) [R1 is a hydrogen atom, an optionally substituted C1-C6 alkyl group, an optionally substituted C3-C6 cycloalkyl group, etc. R2 is a hydrogen atom, a halogen atom, a carboxy group, a C2-C7 alkoxycarbonyl group, a carbamoyl group, a cyano group, a C1-C6 alkyl group, a halogeno C1-C6 alkyl group, a C1-C6 alkyl group substituted with a heteroaryl group, etc. , R3 is a substituted C1-C6 alkyl group, a heterocyclyl group or a 1-5 substituted heterocyclyl group, X1, X2, X3, X4 and X5 are independently a hydrogen atom, a halogen atom, an amino group, a carboxy group, a carbamoyl group, a cyano group, a nitro group, a C1-C6 alkyl group, etc. n is an integer of 0 to 2. ] Or a pharmacologically acceptable salt thereof, or a prodrug thereof. |