(S)-N-((S)-1-Carboxy-3-methyl-butyl)-2,2-dimethyl-3-[(S)-2-((2S,3S)-3-methyl-2-{(S)-3-methyl-2-[methyl-(3-phenyl-propanoyl)-amino]-butanoylamino}-pentanoylamino)-4-oxo-4-pyrrolidin-1-yl-butanoylamino]-succinamic acid AIDS-165021 AIDS165021 PhCH2CH2CO-N-Me-Val-Ile-Asp(pyrrolidino)-Asp(diMe)-Leu-OH