InChI=1/C16H13BrN2O2/c1-2-16-6-5-11(20)14(17)13(16)8-3-4-10-9(7-18-19-10)12(8)15(16)21/h3-4,7H,2,5-6H2,1H3,(H,18,19)/t16-/m1/s1/f/h18H A1DF9ABB7DB5E37B