InChI=1/C18H17BrN4O2/c1-21-14(10-5-4-7-12-8-6-9-13(19)11-12)20-16-15(21)17(24)23(3)18(25)22(16)2/h4-11H,1-3H3/b7-4+,10-5+ D69584992981EF69