YF8 yf8 N-[8-(4-{[(1R,3R,4S)-4-(4-chlorophenyl)-1-methyl-3-{[4-(4-{[4-{[(2R)-4-(morpholin-4-yl)-1-(phenylsulfanyl)butan-2-yl]amino}-3-(trifluoromethanesulfonyl)benzene-1-sulfonyl]carbamoyl}phenyl)piperazin-1-yl]methyl}cyclohexyl]methyl}piperazin-1-yl)-8-oxooctanoyl]-3-methyl-L-valyl-(4R)-4-hydroxy-N-{(1S)-1-[4-(4-methyl-1,3-thiazol-5-yl)phenyl]ethyl}-L-prolinamide YF8