InChI=1/C23H20N4O/c1-16-12-13-17(2)18(14-16)15-24-26-23-25-21-11-7-6-10-20(21)22(28)27(23)19-8-4-3-5-9-19/h3-15H,1-2H3,(H,25,26)/b24-15+/f/h26H 9BE0962FCA8319DA