AIDS-097238 AIDS097238 [1R-[1R*,2S*(2R*,2S*)]]-3-[[3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid, 1,1-dimethylethyl ester