InChI=1/C12H10Br2N4O3/c13-9-4-8(18(19)20)5-10(14)12(9)21-6-7-1-2-16-11(3-7)17-15/h1-5H,6,15H2,(H,16,17)/f/h17H 1F0D65BAF66F69F7