InChI=1S/C25H24N2O3/c1-4-18-7-10-20(11-8-18)29-15-24(28)26-22-14-19(9-6-17(22)3)25-27-21-12-5-16(2)13-23(21)30-25/h5-14H,4,15H2,1-3H3,(H,26,28)