N-amino>-2,2-difluoro-3(S)-amino-6-methylheptanoyl>-L-isoleucyl>-2-pyridylmethylamine

[(S)-1-((R)-2,2-Difluoro-1-(4-methoxy-phenylamino)-2-{(S)-2-methyl-1-[(pyridin-2-ylmethyl)-carbamoyl]-butylcarbamoyl}-ethyl)-3-methyl-butyl]-carbamic acid tert-butyl ester