7-chloro-5-methyl-1-phenyl-1,5-benzodiazepine-2,4-dione; 7-Chloro-5-methyl-1-phenyl-1,5-dihydro-2H-benzo[b][1,4]diazepine-2,4(3H)-dione; 8-Chloro-1-methyl-5-phenyl-1,5-dihydro-3H-1,5-benzodiazepine-2,4-dione