InChI=1S/C22H22N2O2/c1-14(2)11-22(21(25)26,17-12-23-19-9-5-3-7-15(17)19)18-13-24-20-10-6-4-8-16(18)20/h3-10,12-14,23-24H,11H2,1-2H3,(H,25,26)