(2R,3R,4R,5S)-6-Cyclohexyl-3,4-dihydroxy-5-{(S)-3-(3H-imidazol-4-yl)-2-[2-(naphthalen-1-yloxy)-ethanoylamino]-propanoylamino}-2-isopropyl-hexanoic acid {(S)-2-methyl-1-[(pyridin-2-ylmethyl)-carbamoyl]-butyl}-amide 2-(MeOEtOEtO)Ph-Cha.psi.[CH(OH)CH(OH)]Val-Ile-Amp AIDS-042968 AIDS042968