InChI=1S/C19H34O8/c1-12(20)10-8-6-4-3-5-7-9-11-13(2)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)