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

valyl>-N-methylleucin-tert-butylester-chlorid

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

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

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