InChI=1/C20H18N2O2/c1-14-3-8-18-17(10-20(23)24-19(18)9-14)13-22(2)12-16-6-4-15(11-21)5-7-16/h3-10H,12-13H2,1-2H3 9420E085F7B2F5EE