InChI=1S/C20H30N2O6/c1-20(2,3)9-10-21-15(12-17(24)25)18(26)22-16(19(27)28-4)11-13-5-7-14(23)8-6-13/h5-8,15-16,21,23H,9-12H2,1-4H3,(H,22,26)(H,24,25)