(2S)-N-((1S,2R)-3-{2(S)-[N-(tert-butyl)carbamoyl]-4-[(4-fluorophenyl)methyl]piperazinyl}-2-hydroxy-1-benzylpropyl)-3-methyl-2-{[(2-methyl(1,3-thiazol-4-yl))methoxy]carbonylamino}butanamide AIDS-071423 AIDS071423