InChI=1S/C20H26O11/c1-7(2)4-5-9-12(22)11(21)6-10(8(3)18(26)27)16(9)30-20-15(25)13(23)14(24)17(31-20)19(28)29/h4,6,8,13-15,17,20-25H,5H2,1-3H3,(H,26,27)(H,28,29)