{(S)-1-[(S)-1-[(S)-1-((S)-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

N--5(S)-amino-4(S)-hydroxy-2(S)-isopropyl-7-methyloctanoyl>-L-isoleucyl>-2-pyridylmethylamine

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

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

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