InChI=1/C13H11BrN8O2/c1-7-10(17-21-22(7)12-11(15)19-24-20-12)13(23)18-16-6-8-2-4-9(14)5-3-8/h2-6H,1H3,(H2,15,19)(H,18,23)/b16-6+/f/h18H,15H2 13928BD9E2145DB4