(4S)-4-[N-((1S)-1-{N-[(1S)-2-((2S)-2-{N-[2-Oxo-1-prop-2-enyl-2-(N-prop-2-enylcarbamoyl)ethyl]carbamoyl}pyrrolidinyl)-1-(methylethyl)-2-oxoethyl]carbamoyl}-2-methylpropyl)carbamoyl]-4-((2S)-2-amino-3-carboxypropanoylamino)butanoic acid AIDS-162012 AIDS162012