InChI=1/C13H12BrN3O3/c14-10-4-2-1-3-9(10)12(18)17-11(13(19)20)5-8-6-15-7-16-8/h1-4,6-7,11H,5H2,(H,15,16)(H,17,18)(H,19,20)/p-1/t11-/m0/s1/fC13H11BrN3O3/h16-17H/q-1 F7C022C5ED008E4D