(S)-2-{(S)-2-[(1-{(S)-2-[((R)-1-{(S)-2-[(S)-2-((S)-2-Amino-3-hydroxy-propanoylamino)-propanoylamino]-propanoylamino}-2-phenyl-ethyl)-hydroxy-phosphinoyl]-cyclopentyl}-methanoyl)-amino]-3-methyl-butanoylamino}-3-methyl-butyric acid methyl ester AIDS-080616 AIDS080616