(S)-2-((S)-2-{[1-((S)-1-{(S)-3-(2,6-Difluorophenyl)-2-[(S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propanoylamino]-propanoyl}-pyrrolidin-2-yl)-methanoyl]-amino}-3-methyl-butanoylamino)-3-methyl-butyric acid methyl ester AIDS-082183 AIDS082183 Fmoc-Ala-Phe(F,F)o,o-Pro-OMe.B