InChI=1/C14H18BrN3O3/c15-10-2-3-11(14(20)21)12(8-10)17-13(19)9-18-6-1-4-16-5-7-18/h2-3,8,16H,1,4-7,9H2,(H,17,19)(H,20,21)/f/h17-18H D4895740CBE1A113