(2S)-N-[4-((2S)-2-{(2S)-2-[(Phenylmethoxy)carbonylamino]propanoylamino}-3-methylbutanoylamino)(1S,4S,2R,3R)-2,3-dihydroxy-6-methyl-1-(2-methylpropyl)heptyl]-2-{(2S)-2-[(phenylmethoxy)carbonylamino]propanoylamino}-3-methylbutanamide AIDS-071987 AIDS071987