(S)-benzyl 2-(4-amino-3-((S)-2-(tert-butoxycarbonylamino)-4-phenylbutanamido) benzamido)-3-(1H-indol-3-yl)propanoate

(S)-tert-butyl 1-(4-(3,3-dimethyl-2-oxoindolin-1-yl)piperidin-1-yl)-1-oxo-4-phenylbutan-2-ylcarbamate

[((S)-2-Amino-4-phenyl-butyryl)-(3-phenyl-propyl)-amino]-acetic acid methyl ester

(S)-2-(t-boc-amino)-4-cyclohexylbutan-1-ol