InChI=1/C21H20N6O/c1-27(14-18-7-9-23-26-18)13-15-4-2-5-16(10-15)21-24-19(11-20(28)25-21)17-6-3-8-22-12-17/h2-12H,13-14H2,1H3,(H,23,26)(H,24,25,28)/p+1/fC21H21N6O/h23,25,27H/q+1 EF5010D53B6D1500