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