N-<<4-<(1,1-dimethylethoxy)carbonyl>-1-piperazinyl>sulfonyl>-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-3,3-difluoro-4-<(2-methylbutyl)amino>-2,4-dioxobutyl>-4,5-didehydro-L-norvalinamide

(4-{(S)-2-[(S)-1-Cyclohexylmethyl-3,3-difluoro-3-(2-morpholin-4-yl-ethylcarbamoyl)-2-oxo-propylcarbamoyl]-2-[(S)-2-(morpholine-4-sulfonylamino)-3-phenyl-propionylamino]-ethyl}-thiazol-2-yl)-carbamic acid trichloromethyl ester

(3R,4S)-5-Cyclohexyl-2,2-difluoro-3-hydroxy-4-[(S)-2-[(S)-2-(morpholine-4-sulfonylamino)-3-phenyl-propionylamino]-3-(1-trityl-1H-imidazol-4-yl)-propionylamino]-pentanoic acid (2-morpholin-4-yl-ethyl)-amide

N-<1-oxo-3-(3-pyridinyl)propyl>-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