InChI=1S/C20H15N3O3/c24-15(25)11-21-19-17-16(13-7-3-1-4-8-13)18(14-9-5-2-6-10-14)26-20(17)23-12-22-19/h1-10,12H,11H2,(H,24,25)(H,21,22,23)