((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

(3R,6R)-3,6-Diisobutyl-piperidin-2-one

(2R,5R)-5-tert-Butoxycarbonylamino-2-isobutyl-7-methyl-octanoic acid

4-[(S)-2-Benzyloxycarbonylamino-2-((1R,4R)-4-carbamoyl-1-isobutyl-6-methyl-heptylcarbamoyl)-ethyl]-imidazole-1-carboxylic acid benzyl ester

Boc-D-Phe-Gln-Trp-Ala-Val-Gly