N-Boc-L-Val-N-Me-L-Leu-OMe

(2S,3R)-2-((S)-2-tert-Butoxycarbonylamino-propionylamino)-3-methoxy-3-phenyl-propionic acid methyl ester

(2S,3R)-2-{(S)-2-[((S)-2-tert-Butoxycarbonylamino-3-methyl-butyryl)-methyl-amino]-4-methyl-pentanoylamino}-3,5-dimethyl-hex-4-enoic acid methyl ester

(6S,9R,12S)-methyl 6-((R)-3-(benzoyloxy)-2-methylpropyl)-12-((R)-methoxy(phenyl)methyl)-2,2,5,9-tetramethyl-4,7,10-trioxo-3-oxa-5,8,11-triazatridecan-13-oate