Z-D-Asp(OBut)-CHN2
(S)-2-((R)-2-Benzyloxycarbonylamino-3-tert-butoxycarbonyl-propionylamino)-pentanedioic acid dimethyl ester
N-[(benzyloxy)carbonyl]-D-aspartic acid β-tert-butyl ester α-[(S)-α-methylbenzyl]amide
N-benzyloxycarbonyl-D-aspartic acid γ-tert-butyl ester α-[N-methyl-N-(3-trifluoromethylbenzyl)]amide
(R)-3-(((benzyloxy)carbonyl)amino)-4-oxo-4-(((R)-1-phenylethyl)amino)butanoic acid