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