InChI=1/C20H20N6O2/c1-3-28-16-6-4-15(5-7-16)23-19-24-18(14-8-10-21-11-9-14)26-17(27)12-13(2)22-20(26)25-19/h4-12,18,27H,2-3H2,1H3,(H2,22,23,24,25)/p-1/t18-/m0/s1/fC20H19N6O2/h27h,22-23H/q-1 B600302255610193