InChI=1S/C28H24N4O2/c1-31-22-15-6-5-14-21(22)24(18-9-3-2-4-10-18)29-26(28(31)34)30-27(33)23-17-20-12-7-11-19-13-8-16-32(23)25(19)20/h2-7,9-12,14-15,17,26H,8,13,16H2,1H3,(H,30,33)/t26-/m1/s1