PROCESS FOR PRODUCING α-AMINO-α', α', α'-TRIHALOKET0NE DERIVATIVES, α-AMINO-α', α', α'-TRIHALOALCOHOL DERIVATIVES AND α-HYDROXY-β-AMINOCARBOXYLIC ACID DERIVATIVES

摘要

A process for producing optically active α-hydroxy-β-aminocarboxylic acid derivatives. α-Aminoketone derivatives (4) are successively halogenated, reduced and hydrolyzed to thereby efficiently produce α-amino-α', α', α'-trihaloketone derivatives (3), α-amino-α', α', α'-trihaloalcohol derivatives (1) and α-hydoxy-β-aminocarboxylic acid derivatives (2).