AIDS-097266 AIDS097266 [(S,R)-3-[[(R,S)-3-[[2-[[(Phenylmethoxy)carbonyl)-amino]-2,3-dimethyl-1-oxybutyl]amino]-2-hydroxy-4-phenylbutyl]amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid, 1,1-dimethylethyl ester