InChI=1S/C25H22N4O/c26-22(10-21-14-29-25-4-2-1-3-24(21)25)16-30-23-11-20(13-28-15-23)17-5-6-19-12-27-8-7-18(19)9-17/h1-9,11-15,21-22H,10,16,26H2/t21?,22-/m0/s1