InChI=1S/C20H26O11/c1-8-3-10(21)7-11(29-8)4-9-5-12(22)17(13(6-9)28-2)30-20-16(25)14(23)15(24)18(31-20)19(26)27/h5-6,8,11,14-16,18,20,22-25H,3-4,7H2,1-2H3,(H,26,27)