(5R)-trans-9-Chloro-4,5,6,7-tetrahydro-5,7-dimethyl-6-(3-methyl-2-butenyl)imidazo[4,5-1-jk][1,4]benzodiazepin-2-(1H)-one AIDS-044596 AIDS044596 TIBO, 9Cl-5,7-diMe-6-DMA deriv.