3,7-Dihydro-6,7-dimethyl-8-nitro-5-phenylpyrrolo(3,4-e)-1,4-diazepin-2(1H)-one 84829-75-4 Pyrrolo(3,4-e)-1,4-diazepin-2(1H)-one, 3,7-dihydro-6,7-dimethyl-8-nitro-5-phenyl-