C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
530/1.06, 530/5.
C07K 5/075 (2006.01) C07K 1/06 (2006.01)
Patent
CA 1339658
Disclosed are a process for preparing N-protected aspartic anhydride by the reaction of N-protected aspartic acid with phosgene, a process for preparing an N-protected .alpha.-L-aspartyl-L-phenylalanine methyl ester from N-protected aspartic anhydride and mineral acid salt of L-phenylalanine methyl ester, and a process for preparing N-benzyloxy- carbonyl-L-aspartic anhydride by the reaction of N- benzyloxycarbonyl-L-aspartic acid with acetic anhydride.
593914
Ajioka Masanobu
Higuchi Chojiro
Katoh Toshio
Oura Takeshi
Yamaguchi Akihiro
Mitsui Chemicals Inc.
Mitsui Toatsu Chemicals Incorporated
Sim & Mcburney
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