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