AIDS-097277 AIDS097277 [1S-[1R*,2S*(2S*,3R*)]]-[2-Hydroxy-3-[[2-hydroxy-3-[[[1-[[(phenylmethoxy)-carbonyl]amino]cyclopentyl]carbonyl]amino]-4-phenylbutyl]-amino]-1-(phenylmethyl)propyl]carbamic acid, 1,1-dimethyethyl ester