InChI=1/C21H18N4O/c26-21(16-5-4-15-10-12-23-20(15)13-16)25-18-8-6-17(7-9-18)24-14-19-3-1-2-11-22-19/h1-13,23-24H,14H2,(H,25,26)/f/h25H 9354D54256157944