InChI=1S/C20H34O10/c21-11-9-7-5-3-1-2-4-6-8-10-12(22)13(19(26)27)17-15(24)14(23)16(25)18(30-17)20(28)29/h13-18,21,23-25H,1-11H2,(H,26,27)(H,28,29)