InChI=1S/C22H20O11/c1-30-11-5-3-2-4-9(11)14-8-10(23)15-12(31-14)6-7-13(16(15)24)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)