InChI=1/C24H19BrN2O2/c1-17-4-2-6-22(12-17)27-24(28)20(15-26)13-19-5-3-7-23(14-19)29-16-18-8-10-21(25)11-9-18/h2-14H,16H2,1H3,(H,27,28)/b20-13+/f/h27H 49FF9DB5EAFABACF