(2S)-N-((1S)-1-{N-[4-((2S)-2-{(2S)-4-Methyl-2-[(phenylmethoxy)carbonylamino]pentanoylamino}-3-methylbutanoylamino)(1S,4S,2R,3R)-2,3-dihydroxy-6-methyl-1-(2-methylpropyl)heptyl]carbamoyl}-2-methylpropyl)-4-methyl-2-[(phenylmethoxy)carbonylamino]pentanamide AIDS-071991 AIDS071991