PRODUCTION OF N-BENZYLOXYCARBONYL-L-ASPARTICL ACID ANHYDRIDE

摘要

PURPOSE:To improve the productivity of the objective N-benzyloxycarbonyl-L- aspartic acid anhydride and produce the compound in high yield and quality in a short time. CONSTITUTION:N-benzyloxycarbonyl-L-aspartic acid anhydride is produced by reacting N-benzyloxycarbonyl-L-aspartic acid with acetic anhydride in the presence of an aliphatic or aromatic sulfonic acid ammonium salt.