InChI=1S/C34H34N2O4/c1-8-34(4,5)33-25(22-13-9-10-15-24(22)36-33)27-30(38)31(39-6)26(29(37)32(27)40-7)23-18-35-28-20(17-16-19(2)3)12-11-14-21(23)28/h8-16,18,35-36H,1,17H2,2-7H3