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