InChI=1S/C20H22O11/c1-20(2,19(27)28)7-9-10(5-3-8-4-6-11(21)30-15(8)9)29-18-14(24)12(22)13(23)16(31-18)17(25)26/h3-6,12-14,16,18,22-24H,7H2,1-2H3,(H,25,26)(H,27,28)