InChI=1S/C20H22N4O2/c1-13(2)11-24-12-17(15-8-4-5-9-16(15)19(24)25)22-20(26)23-18-14(3)7-6-10-21-18/h4-10,12-13H,11H2,1-3H3,(H2,21,22,23,26)