InChI=1/C18H19BrN2O3/c1-11-4-6-14(16(22)8-11)18(24)21(3)10-17(23)20-15-7-5-13(19)9-12(15)2/h4-9,22H,10H2,1-3H3,(H,20,23)/f/h20H F153772B8FC81E24