InChI=1/C28H26N2O4/c1-3-33-27-15-19(11-13-25(27)31)17-29-23-9-5-8-22-21(23)7-6-10-24(22)30-18-20-12-14-26(32)28(16-20)34-4-2/h5-18,31-32H,3-4H2,1-2H3 CE515C2DEF8959E1