InChI=1S/C18H30N2O7/c21-13-14(22)16(17(24)25)27-18(15(13)23)26-11-7-5-3-1-2-4-6-8-12-9-10-19-20-12/h9-10,13-16,18,21-23H,1-8,11H2,(H,19,20)(H,24,25)