InChI=1S/C23H20O11/c24-12-4-9(32-23-19(27)17(25)18(26)21(34-23)22(28)29)5-15-16(12)11-7-31-14-6-13-8(1-2-30-13)3-10(14)20(11)33-15/h1-6,11,17-21,23-27H,7H2,(H,28,29)