InChI=1/C14H18BrN3O4/c15-11-7-5-10(6-8-11)13(20)17-14(21)16-9-3-1-2-4-12(19)18-22/h5-8,22H,1-4,9H2,(H,18,19)(H2,16,17,20,21)/f/h16-18H 6029431D9A6CABF5