InChI=1/C28H24N2O3/c1-31-27-9-5-3-7-21(27)19-29-23-11-15-25(16-12-23)33-26-17-13-24(14-18-26)30-20-22-8-4-6-10-28(22)32-2/h3-20H,1-2H3 38243FB5FCFCDA43