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