InChI=1S/C21H28O10/c1-6-4-11(29-21-16(25)14(23)15(24)18(31-21)19(26)27)13-8(3)20(28)30-17(13)12-7(2)10(22)5-9(6)12/h7-9,11-18,21,23-25H,1,4-5H2,2-3H3,(H,26,27)