AIDS-097484 AIDS097484 [1S-[1R*,2S*(2S*,3fR*)]]-[3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-(2-ethylphenyl)butyl]amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid, 1,1-dimethylethyl ester