{(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

N-(4-morpholinylsulfonyl)-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-4-ethoxy-3,3-difluoro-2(R)-hydroxy-4-oxobutyl>-4,5-didehydro-L-norvalinamide

N-<(1,1-dimethylethoxy)carbonyl>-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-3,3-difluoro-2(R)-hydroxy-4-<<2-(4-morpholinyl)ethyl>amino>-4-oxobutyl>-4,5-didehydro-L-norvalinamide