InChI=1S/C26H40O11/c1-2-3-5-8-16(36-26-23(33)21(31)22(32)24(37-26)25(34)35)13-11-15-12-14-18(28)20(15)17(27)9-6-4-7-10-19(29)30/h11,13,16-17,21-24,26-27,31-33H,2-10,12,14H2,1H3,(H,29,30)(H,34,35)/b13-11+