Process for preparing beta -amino- alpha -hydroxy acid derivatives

摘要

An object of the present invention is to provide a process for producing a beta -amino- alpha -hydroxy acid derivative via efficient and industrially utilizable steps. The present invention provides a process for producing a beta -amino- alpha -hydroxy acid derivative represented by the general formula (2) given below which comprises hydrolyzing an alpha -amino- alpha ', alpha -dihaloketone derivative of the general formula (1) given below in the presence of a base, followed by protecting the amino group or without protecting the same.