[(S)-1-((S)-1-Carbamoylmethyl-2-phenyl-ethylcarbamoyl)-3-methyl-butyl]-carbamic acid tert-butyl ester

((S)-2-{(S)-2-[(S)-2-[(S)-4-Carbamoyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)-butyrylamino]-3-(1H-indol-3-yl)-propionylamino]-propionylamino}-3-methyl-butyrylamino)-acetic acid benzyl ester

((S)-2-{(S)-2-[(S)-2-[(S)-2-((R)-2-tert-Butoxycarbonylamino-3-phenyl-propionylamino)-4-carbamoyl-butyrylamino]-3-(1H-indol-3-yl)-propionylamino]-propionylamino}-3-methyl-butyrylamino)-acetic acid benzyl ester

((S)-2-{(S)-2-[(S)-2-((S)-2-Amino-4-carbamoyl-butyrylamino)-3-(1H-indol-3-yl)-propionylamino]-propionylamino}-3-methyl-butyrylamino)-acetic acid benzyl ester

(S)-3-Amino-4-phenyl-butyramide