InChI=1/C21H20N2O/c1-2-22-21-18(15-23-24)13-14-19(16-9-5-3-6-10-16)20(21)17-11-7-4-8-12-17/h3-15,22,24H,2H2,1H3/b23-15+ 85BB485F622D674C