InChI=1S/C20H22O15/c1-32-9-6-7(2-4-8(9)21)3-5-10(22)33-16(14(26)17(27)28)19(31)35-20-13(25)11(23)12(24)15(34-20)18(29)30/h2-6,11-16,20-21,23-26H,1H3,(H,27,28)(H,29,30)