4-(N-{(1R)-1-[N-(1-{N-[1-(N-{1-[N-((1R)-1-Carboxy-2-sulfanylethyl)carbamoyl](1S)-2-cyclohexylethyl}carbamoyl)(1S)-2-methylbutyl]carbamoyl}(1S)-3-methylbutyl)carbamoyl]-3-carboxypropyl}carbamoyl)(4S)-4-(3-carboxypropanoylamino)butanoic acid AIDS-170465 AIDS170465