InChI=1S/C22H20O11/c1-30-14-5-2-9(6-13(14)24)15-8-12(23)11-4-3-10(7-16(11)32-15)31-22-19(27)17(25)18(26)20(33-22)21(28)29/h2-8,17-20,22,24-27H,1H3,(H,28,29)