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