(S)-2-{(S)-3-Carboxy-2-[2-((2S,3S)-3-methyl-2-{(S)-3-methyl-2-[methyl-(3-phenyl-propanoyl)-amino]-butanoylamino}-pentanoylamino)-4-oxo-4-pyrrolidin-1-yl-butanoylamino]-propanoylamino}-4-methyl-pentanoic acid AIDS-164992 AIDS164992 PhCH2CH2CO-N-Me-Val-Ile-NHCH[CH2CO-pyrrolidino]-CO-Asp-Leu-OH