(4S)-4-{N-[(1S)-1-(N-{(1S)-1-[N-((1S)-1-{N-[(1S)-1-(2,2-Difluoroethyl)-2-oxoethyl]carbamoyl}-2-cyclohexylethyl)carbamoyl]-3-carboxypropyl}carbamoyl)-2,2-diphenylethyl]carbamoyl}-4-[(2S)-2-(acetylamino)-3-carboxypropanoylamino]butanoic acid AIDS-010590 AIDS010590