AIDS-184497 AIDS184497 Butyl (2S)-2-{[4-(N-{3-[(5-{N-[(1S)-1-(butoxycarbonyl)-2-methylpropyl]carbamoyl}imidazol-4-yl)carbonylamino]propyl}carbamoyl)imidazol-5-yl]carbonylamino}-3-methylbutanoate