(1-{(1S,2S,3S)-1-Benzyl-2-hydroxy-3-[3-methyl-2-(pyridin-4-ylmethoxycarbonylamino)-butanoylamino]-4-phenyl-butylcarbamoyl}-2-methyl-propyl)-carbamic acid benzyl ester AIDS-045710 AIDS045710 Mono-ol-based PR INH