7-chloro-1,3-dimethyl-5-phenyl-1,5-benzodiazepine-2,4-dione; (3RS)-7-Chloro-1,3-dimethyl-5-phenyl-1,5- dihydro-3H-1,5-benzodiazepine-2,4-dione; 7-Chloro-1,3-dimethyl-5-phenyl-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-dione