InChI=1/C24H22N2O3/c1-28-17-21-20-14-8-9-15-22(20)29-23(21)24(27)25-26(19-12-6-3-7-13-19)16-18-10-4-2-5-11-18/h2-15H,16-17H2,1H3,(H,25,27)/f/h25H 8C4BF5D2643E9675