9-Chloro-7-methyl-6H-indolo[2,1-c][1,4]benzodiazepine-6,13(5H)-dione AIDS-139212 AIDS139212 NSC647707 {5H-Indeno[1,2-a][1,4]benzodiazepin-6,13-dione,} 9-chloro-6, 13-dihydro-7-methyl-