InChI=1/C21H18N4O2/c1-13-4-6-14(7-5-13)23-21(27)24-16-8-9-17-18(11-15-3-2-10-22-15)20(26)25-19(17)12-16/h2-12,22H,1H3,(H,25,26)(H2,23,24,27)/b18-11-/f/h23-25H EFEEE61FFF1C0521