InChI=1S/C25H34O9/c1-13(2)7-6-8-14(3)9-10-16-11-17(12-18(32-5)19(16)15(4)26)33-25-22(29)20(27)21(28)23(34-25)24(30)31/h7,9,11-12,20-23,25,27-29H,6,8,10H2,1-5H3,(H,30,31)/b14-9+