(2S)-N-[4-((2S)-3-Methyl-2-{2-[(phenylmethoxy)carbonylamino]acetylamino}butanoylamino)(1S,4S,2R,3R)-2,3-dihydroxy-5-phenyl-1-benzylpentyl]-3-methyl-2-{2-[(phenylmethoxy)carbonylamino]acetylamino}butanamide AIDS-072007 AIDS072007