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