InChI=1/C17H12N4O2/c1-9(22)19-12-4-2-3-11-13(12)17(23)14-15(20-21-16(11)14)10-5-7-18-8-6-10/h2-8H,1H3,(H,19,22)(H,20,21)/f/h19-20H 2C049CE2342B35DC