InChI=1S/C20H26O10/c1-10(21)7-11(2)29-20-19(27)18(26)17(25)15(30-20)9-28-16(24)6-4-12-3-5-13(22)14(23)8-12/h3-6,8,11,15,17-20,22-23,25-27H,7,9H2,1-2H3