InChI=1S/C28H38N2O6/c1-5-7-21-9-11-23(25(17-21)33-3)35-19-27(31)29-13-15-30(16-14-29)28(32)20-36-24-12-10-22(8-6-2)18-26(24)34-4/h9-12,17-18H,5-8,13-16,19-20H2,1-4H3