AIDS-097421 AIDS097421 [1S-[1R*,2S*(2S*,3R*)]]-[2-Hydroxy-3-[2-hydroxy-1-oxo-2-(trifluoromethyl)propyl]amino]-4-phenylbutyl]amino]-1-(phenylmethyl)propyl] carbamic acid, 1,1-dimethylethyl ester