1,7-Dihydro-8-amino-1,3,5-trimethyl-6H-pyrimido(4,5-c)-1,2-diazepin-6-one 6H-Pyrimido(4,5-c)-1,2-diazepin-6-one, 1,7-dihydro-8-amino-1,3,5-trimethyl- 70311-77-2 8-Amino-1,3,5-trimethyl-1H-pyrimido(4,5-c)-1,2-diazepin-6(7H)-one