Phenylalkanoic acid derivatives, process for producing the same and process for separating optical isomers thereof

摘要

A novel phenylalkanoic acid derivative represented by the following formula <IMAGE> <IMAGE> wherein n is an integer of 1-2, X is a halogen atom, alkoxyl group or nitro group, R is a hydrogen atom or alkyl group, and Z is a hydrogen atom or acyl group, a method for producing said derivative, a method for separating the optical isomers of said derivative from each other, as well as an anti-inflammatory drug, analgesic drug or preparation for external use each containing said derivative.