InChI=1S/C19H34O8/c1-3-4-5-6-7-8-9-10-11-13(12(2)20)26-19-16(23)14(21)15(22)17(27-19)18(24)25/h13-17,19,21-23H,3-11H2,1-2H3,(H,24,25)