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