InChI=1S/C20H22O11/c1-20(2,27)17-15(30-19-13(24)11(22)12(23)16(31-19)18(25)26)10-8(28-17)5-3-7-4-6-9(21)29-14(7)10/h3-6,11-13,15-17,19,22-24,27H,1-2H3,(H,25,26)