InChI=1/C18H15BrN4O2/c1-8-14-15(12-7-11(19)5-6-13(12)20-8)18(25)23(17(14)24)16-9(2)21-22(4)10(16)3/h5-7H,1-4H3 4D96F70E86FB80B9