InChI=1/C13H12Br2N4O/c1-7-4-9(14)12(10(15)5-7)18-13(20)11-6-8(19-16)2-3-17-11/h2-6H,16H2,1H3,(H,17,19)(H,18,20)/f/h18-19H DE8EB90EB9DD108F