{(S)-1-[(S)-1-[(S)-1-((S)-2,2-Difluoro-1-hydroxy-2-{(1S,2S)-2-methyl-1-[(pyridin-2-ylmethyl)-carbamoyl]-butylcarbamoyl}-ethyl)-3-methyl-butylcarbamoyl]-2-(3H-imidazol-4-yl)-ethylcarbamoyl]-2-phenyl-ethyl}-carbamic acid tert-butyl ester

tert-butyl ((4S,8S,9S,12S,15S)-4-((S)-sec-butyl)-7,7-difluoro-8-hydroxy-9-isobutyl-3,6,11,14-tetraoxo-16-phenyl-1-(pyridin-2-yl)-12-((1-tosyl-1H-imidazol-5-yl)methyl)-2,5,10,13-tetraazahexadecan-15-yl)carbamate

tert-butyl ((4S,8R,9S)-4-((R)-sec-butyl)-7,7-difluoro-9-isobutyl-8-((4-methoxyphenyl)amino)-3,6,11,14-tetraoxo-16-phenyl-1-(pyridin-2-yl)-12-((1-tosyl-1H-imidazol-4-yl)methyl)-2,5,10,13-tetraazahexadecan-15-yl)carbamate

{(S)-1-[(S)-1-[(S)-1-(2,2-Difluoro-2-{(1S,2S)-2-methyl-1-[(pyridin-2-ylmethyl)-carbamoyl]-butylcarbamoyl}-acetyl)-3-methyl-butylcarbamoyl]-2-(1H-imidazol-4-yl)-ethylcarbamoyl]-2-phenyl-ethyl}-carbamic acid tert-butyl ester

4(S)-<<<-Nim-tosyl-L-histydyl>amino>-2,2-difluoro-6-methyl-3-oxoheptanoyl>-L-isoleucyl-2-pyridylmethylamine