InChI=1/C21H18N2O2/c1-14-15(2)23(18-10-4-3-9-17(14)18)20(24)13-25-19-11-5-7-16-8-6-12-22-21(16)19/h3-12H,13H2,1-2H3 532AB8357F8577F5