InChI=1S/C32H30N2O5/c1-17(2)5-7-19-9-11-25-21(13-19)23(15-33-25)27-28(35)30(37)32(39,31(38)29(27)36)24-16-34-26-12-10-20(14-22(24)26)8-6-18(3)4/h5-6,9-16,33-35,39H,7-8H2,1-4H3