InChI=1S/C18H28N2O6/c1-2-3-4-5-6-7-8-9-12-10-11-20(19-12)17-15(23)13(21)14(22)16(26-17)18(24)25/h2,10-11,13-17,21-23H,1,3-9H2,(H,24,25)