InChI=1S/C22H24O11/c1-30-15-8-11(12(23)9-13(15)24)5-3-10-4-6-14(16(7-10)31-2)32-22-19(27)17(25)18(26)20(33-22)21(28)29/h3-9,17-20,22-27H,1-2H3,(H,28,29)/b5-3+