(4R)-4-(N-{(1S)-1-[N-((1S)-2-{(2S,4R)-4-(Phenylmethoxy)-2-[N-(N-propylacetylamino)carbamoyl]pyrrolidinyl}-1-(methylethyl)-2-oxoethyl)carbamoyl]-2-methylbutyl}-N-hydroxycarbamoyl)-4-[(2S)-2-(acetylamino)-3-carboxypropanoylamino]butanoic acid AIDS-162040 AIDS162040