AIDS-169474 AIDS169474 Urea, N-[(1S)-1-[[(3aS,6aR)-6-cyclobutyl-4-(cyclopropylcarbonyl)hexahydro-5-oxopyrrolo[3,2-b]pyrrol-1(2H)-yl]carbonyl]-2-methylpropyl]-N'-[(1S)-2-methyl-1-[[4-(2-pyrimidinyl)-1-piperazinyl]carbonyl]propyl]-