InChI=1S/C25H26O10/c1-11(2)21-22(34-21)16-9-12(5-6-17(16)27)3-4-13-7-14(26)10-15(8-13)33-25-20(30)18(28)19(29)23(35-25)24(31)32/h3-10,18-23,25-30H,1H2,2H3,(H,31,32)/b4-3+