InChI=1/C20H19BrN4O3/c1-2-3-4-17(26)22-14-8-5-12(6-9-14)19(27)25-24-18-15-11-13(21)7-10-16(15)23-20(18)28/h5-11H,2-4H2,1H3,(H,22,26)(H,25,27)(H,23,24,28)/p+1/fC20H20BrN4O3/h22-25H/q+1 C9D9992F1C2DEDB2