(S)-2-{(S)-3-Carboxy-2-[3-((S)-1-methyl-heptyloxycarbonyl)-2-((2S,3S)-3-methyl-2-{(S)-3-methyl-2-[methyl-(3-phenyl-propanoyl)-amino]-butanoylamino}-pentanoylamino)-propanoylamino]-propanoylamino}-4-methyl-pentanoic acid AIDS-164987 AIDS164987 PhCH2CH2CO-N-Me-Val-Ile-NHCH[CH2CO-1(S)-methylheptyloxy]-CO-Asp-Leu-OH