InChI=1S/C26H40O11/c27-15-7-3-4-8-17(36-26-23(33)21(31)22(32)24(37-26)25(34)35)13-11-16-12-14-19(28)18(16)9-5-1-2-6-10-20(29)30/h11,13,17,21-24,26-27,31-33H,1-10,12,14-15H2,(H,29,30)(H,34,35)/b13-11+