N-(4-morpholinylsulfonyl)-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-3,3-difluoro-4-<<2-(4-morpholinyl)ethyl>amino>-2,4-dioxobutyl>-4,5-didehydro-L-norvalinamide

O-methyl-N-(4-morpholinylsulfonyl)-L-tyrosyl-N-<1-(S)-(cyclohexylmethyl)-3,3-difluoro-2(R)-hydroxy-4-<<2-(4-morpholinyl)ethyl>amino>-4-oxobutyl>-4,5-didehydro-L-norvalinamide

N-(4-morpholinylsulfonyl)-β-oxo-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-3,3-difluoro-4-<<2-(4-morpholinyl)ethyl>amino>-2,4-dioxobutyl>-4,5-didehydro-L-norvalinamide