7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-2H-pyrido[3,2-e]-1,4-diazepin-2-one 4-oxide

7-chloro-5-(2-chlorophenyl)-1,3-dihydro-2H-pyrido[3,2-b]-1,4-diazepin-2-one 4-oxide