(2S)-N-((1S,2R)-3-{2-[N-(tert-Butyl)carbamoyl]-4-[(4-hydroxy-3-methoxyphenyl)methyl]piperazinyl}-2-hydroxy-1-benzylpropyl)-3-methyl-2-[(N-methyl-N-{[2-(methylethyl)(1,3-thiazol-4-yl)]methyl}carbamoyl)amino]butanamide AIDS-071428 AIDS071428