InChI=1S/C34H34N2O4/c1-9-33(3,4)35-19-23(21-15-11-13-17-25(21)35)27-29(37)32(40-8)28(30(38)31(27)39-7)24-20-36(34(5,6)10-2)26-18-14-12-16-22(24)26/h9-20H,1-2H2,3-8H3