(10aS)-4-Chloro-9-methylene-9,10,10a,11-tetrahydro-6H,8H-imidazo[4,5,1-jk]pyrrolo[2,1-c][1,4]benzodiazepine-1(2H)-thione AIDS-044616 AIDS044616 Imidazopyrrolobenzodiazepinone deriv. TIBO deriv.