(4R)-4-(N-{(1S)-1-[N-((1S)-2-{(2S,4R)-2-[N-(2-Oxo-1-propyl-2-(2-1,2,3,4-tetrahydroisoquinolyl)ethyl)carbamoyl]-4-(phenylmethoxy)pyrrolidinyl}-1-(methylethyl)-2-oxoethyl)carbamoyl]-2-methylbutyl}carbamoyl)-4-[(2S)-2-(acetylamino)-3-carboxypropanoylamino]butanoic acid AIDS-162028 AIDS162028