N-<(2S,4R)-2-<N-(tert-butoxycarbonyl)amino>-4-methylheptanoyl>-N-methyl-L-leucine tert-butyl ester

2-{[2-(2-{2-[(2-{2-[(2-tert-butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-propionylamino}-4-methyl-octanoyl)-methyl-amino]-propionyloxy}-4-cyano-butyrylamino)-4-methyl-octanoyl]-methyl-amino}-4-methyl-pentanoic acid tert-butyl ester

tert-butyl N-((2S,4R)-2-((R)-2-((((2S,4R)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)amino)-N,4-dimethylpentanamido)-3-(1-methoxy-1H-indol-3-yl)propanamido)-4-methyloctanoyl)-L-alanyl)oxy)-4-cyanobutanamido)-4-methyloctanoyl)-N-methyl-L-leucinate

tert-butyl N-((2S,4R)-2-((R)-2-((N-((2S,4R)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanamido)-3-(1-methoxy-1H-indol-3-yl)propanamido)-4-methyloctanoyl)-N-methyl-L-alanyl)oxy)-4-cyanobutanamido)-4-methyloctanoyl)-N-methyl-L-leucinate

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

tert-butyl N-((2S,4R)-2-((R)-2-((N-((2S,4R)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)amino)-N,4-dimethylpentanamido)-3-(1-methoxy-1H-indol-3-yl)propanamido)-4-methyloctanoyl)-N-methyl-L-alanyl)oxy)propanamido)-4-methyloctanoyl)-N-methyl-L-leucinate

(S)-2-{[(2S,4R)-2-((S)-2-Hydroxy-propionylamino)-4-methyl-octanoyl]-methyl-amino}-4-methyl-pentanoic acid tert-butyl ester