Patent ID: 7067535

Claim:
A 5-phenylbenzylamine compound represented by the formula [1-a]: wherein R 1 represents a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, a lower alkoxy group, a hydroxy-lower alkyl group, a lower alkoxy-lower alkyl group, an amino group optionally substituted by a lower alkyl group, phenyl group, naphthyl group, nitro group, cyano group, —CO—NH-lower alkyl, —CO—N(lower alkyl) 2 , —NH—CO-lower alkyl, or —COO-lower alkyl, R 2 represents a hydrogen atom, a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, a lower alkoxy group, or cyano group, R 3 represents a hydrogen atom, a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, a lower alkoxy group, or cyano group, R a represents a hydrogen atom, a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, or a lower alkoxy group, R b1 represents a hydrogen atom, a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, or a lower alkoxy group, R b2 represents a hydrogen atom, a halogen atom, a lower alkyl group, a halogeno-lower alkyl group, or a lower alkoxy group, R c1 represents a hydrogen atom, a lower alkyl group, or an acyl group, R c2 represents a hydrogen atom or a lower alkyl group, R d represents a hydrogen atom, a lower alkyl group or an acyl group, R e represents a hydrogen atom or a lower alkyl group, and R f represents a lower alkyl group or a cyclic lower alkyl group, or a pharmaceutically acceptable salt thereof.