N-(N-(1,1-dimethylethoxycarbonyl)-L-phenylalanyl)-L-valine methyl ester
tert-butyl ((S)-1-(((S)-1-hydrazinyl-3-methyl-1-oxobutan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate
N-tert-butoxycarbonyl-L-phenylalanine
L-Valine methyl ester
tert.-Butyloxycarbonyl-L-Phe-L-Val-NH-NH-Z