Studies on Hydroxy Amino Acids. VI. Formation of the Oxazoline Derivatives from <i>N</i>-Acyl-β-hydroxy Amino Acid Peptides

Abstract

Abstract Oxazoline derivatives were mainly obtained from the O-tosyl-N-acyl-β-hydroxy amino acid peptides by β-elimination reaction. Dehydroalanine or hydantoin derivatives were isolated when the urethane type acyl groups were used.