InChI=1/C19H14N4O2/c1-11-8-9-15(14-7-4-10-20-16(11)14)21-19(25)17-12-5-2-3-6-13(12)18(24)23-22-17/h2-10H,1H3,(H,21,25)(H,23,24)/f/h21,23H C2CB5ED7DE2B9F1E