(4R)-4-(N-{1-[N-(2-{2-[N-((2R)-2-Hydroxy-2-phenyl-N-propylacetylamino)carbamoyl](2S,4R)-4-(phenylmethoxy)pyrrolidinyl}(1S)-1-(methylethyl)-2-oxoethyl)carbamoyl](1S)-2-methylbutyl}-N-hydroxycarbamoyl)-4-[(2S)-2-(acetylamino)-3-carboxypropanoylamino]butanoic acid AIDS-162048 AIDS162048