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