InChI=1/C20H16N4O/c1-13-10-11-14(12-21-13)20(25)24-16-7-3-2-6-15(16)19-22-17-8-4-5-9-18(17)23-19/h2-12H,1H3,(H,22,23)(H,24,25)/f/h22,24H F823915B609CDCC2