InChI=1S/C36H44N2O4/c1-35(2,27-9-13-29(14-10-27)37(17-31-21-39-31)18-32-22-40-32)25-5-7-26(8-6-25)36(3,4)28-11-15-30(16-12-28)38(19-33-23-41-33)20-34-24-42-34/h5-16,31-34H,17-24H2,1-4H3