(S)-5-Cyclohexyl-2,2-difluoro-4-{(S)-3-(3H-imidazol-4-yl)-2-[2-(naphthalen-1-yloxy)-ethanoylamino]-propanoylamino}-3-oxo-pentanoic acid {(1S,2S)-2-methyl-1-[(pyridin-2-ylmethyl)-carbamoyl]-butyl}-amide AIDS-082204 AIDS082204