InChI=1/C15H11Br2N3O/c16-9-5-10(14(21)11(17)6-9)13-4-8-3-7(15(18)19)1-2-12(8)20-13/h1-6,20-21H,(H3,18,19)/f/h21h,18-19H2 3E7166A1C13C7728