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