InChI=1S/C33H36N2O6/c36-32(34-14-2-1-3-15-34)30-24(10-6-22-8-12-26-28(18-22)40-20-38-26)25(31(30)33(37)35-16-4-5-17-35)11-7-23-9-13-27-29(19-23)41-21-39-27/h6-13,18-19,24-25,30-31H,1-5,14-17,20-21H2/b10-6+,11-7+