InChI=1/C20H18N2O2/c1-13-3-4-15-12-16-9-10-22(19(16)21-18(15)11-13)17-7-5-14(6-8-17)20(23)24-2/h3-8,11-12H,9-10H2,1-2H3/p+1/fC20H19N2O2/h21H/q+1 489F0413CCBF4C47