InChI=1S/C22H22BrN5O2/c1-4-21(2,3)22-9-17-18(29)26-16(8-13-10-24-11-25-13)19(30)28(17)20(22)27-15-6-5-12(23)7-14(15)22/h4-8,10-11,17,20,27H,1,9H2,2-3H3,(H,24,25)(H,26,29)/b16-8+/t17-,20?,22+/m0/s1