InChI=1S/C21H24O11/c1-21(2)11(32-21)7-9-16-8(4-5-12(22)30-16)6-10(17(9)28-3)29-20-15(25)13(23)14(24)18(31-20)19(26)27/h4-6,11,13-15,18,20,23-25H,7H2,1-3H3,(H,26,27)