InChI=1S/C26H19N3O/c30-26(21-15-29-24-12-6-3-9-18(21)24)25(19-13-27-22-10-4-1-7-16(19)22)20-14-28-23-11-5-2-8-17(20)23/h1-15,25,27-29H