InChI=1/C21H17BrN6O4/c22-16-6-4-14(5-7-16)12-26-13-24-19-18(21(26)30)11-25-27(19)9-8-23-20(29)15-2-1-3-17(10-15)28(31)32/h1-7,10-11,13H,8-9,12H2,(H,23,29)/f/h23H D9721F3E01DB1E23