(1-{(1S,3S)-1-Benzyl-2-hydroxy-3-[3-methyl-2-(pyridin-2-ylmethoxycarbonylamino)-butanoylamino]-4-phenyl-butylcarbamoyl}-2-methyl-propyl)-carbamic acid pyridin-2-ylmethyl ester AIDS-045715 AIDS045715 Mono-ol-based HIV Protease inhibitor Derivative