InChI=1S/C26H24N4O2/c1-25(31)14-26(27,15-25)19-9-7-17(8-10-19)22-23(18-5-3-2-4-6-18)30-16-32-21-11-12-28-13-20(21)24(30)29-22/h2-13,31H,14-16,27H2,1H3/t25-,26-