InChI=1S/C18H32N2O7/c1-12(21)26-10-9-19-13(22)7-8-20-15(24)14(23)18(5,6)11-27-16(25)17(2,3)4/h14,23H,7-11H2,1-6H3,(H,19,22)(H,20,24)/t14-/m0/s1