(4S)-4-[N-((1S)-1-{N-[(1S)-1-(N-{(1S)-1-[N-((1S)-2-Oxo-1-prop-2-enylethyl)carbamoyl]-2-cyclohexylethyl}carbamoyl)-3-carboxypropyl]carbamoyl}-2,2-diphenylethyl)carbamoyl]-4-[(2S)-2-(acetylamino)-3-carboxypropanoylamino]butanoic acid AIDS-122674 AIDS122674