(S)-2-[((2S,4R)-2-{(S)-2-[((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-3-thiazol-4-yl-propionylamino}-4-methyl-octanoyl)-methyl-amino]-propionic acid methyl ester

tert-butyl N-((2S,4R)-2-((R)-2-((N-((2S,4R)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)amino)-N,4-dimethylpentanamido)-3-(thiazol-4-yl)propanamido)-4-methyloctanoyl)-N-methyl-L-alanyl)oxy)-4-cyanobutanamido)-4-methyloctanoyl)-N-methyl-L-leucinate