InChI=1/C21H17N3O/c25-21(14-24-15-22-19-12-6-7-13-20(19)24)23-18-11-5-4-10-17(18)16-8-2-1-3-9-16/h1-13,15H,14H2,(H,23,25)/f/h23H 32BC36E3763D52CD