InChI=1S/C20H18N6O/c1-13-8-9-14(20(27)21-2)10-17(13)25-18-16-11-24-26(19(16)23-12-22-18)15-6-4-3-5-7-15/h3-12H,1-2H3,(H,21,27)(H,22,23,25)