TERT-BUTYL L-N-(3-BENZYLOXYCARBONYLAMINO-3-(S)-TERT-BUTYLCARBOXY-1-OXOPROPYL-AZETIDINE-2-CARBOXYLATE
TERT-BUTYL L-N-(3-BENZYLOXYCARBONYLAMINO-3-(S)-TERT-BUTYLCARBOXY-1-OXOPROPYL-AZETIDINE-2-CARBOXYLATE;[S-(R*,R*)]-2-[(1,1-DiMethylethoxy)carbonyl]-γ-oxo-α-[[(phenylMethoxy)carbonyl]aMino]-1-azetidinebutanoic Acid 1,1-DiMethylethyl Ester