η-OXO-HOMOPHENYLALANINE DERIVATIVES AND PROCESS FOR PRODUCING HOMOPHENYLALANINE DERIVATIVES BY REDUCING THE SAME

摘要

A highly economical and efficient process for producing optically active homophenylalanine derivatives represented by general formula (IV); and intermediates therefor and a process for producing the same. The process comprises reacting a β-benzoylacrylic acid derivative represented by general formula (II) with a 1-arylethylamine derivative represented by general formula (III) and reducing the resultant η-oxo-homophenylalanine derivative represented by general formula (I).