InChI=1S/C25H30O10/c1-13(2)4-8-17(34-25-22(29)20(27)21(28)23(35-25)24(30)31)14(3)10-11-32-16-7-5-15-6-9-19(26)33-18(15)12-16/h4-7,9-10,12,17,20-23,25,27-29H,8,11H2,1-3H3,(H,30,31)/b14-10+