InChI=1S/C26H40O13/c27-20(28)10-6-2-1-5-9-16-17(19-14-18(16)38-39-19)12-11-15(37-34)8-4-3-7-13-35-26-23(31)21(29)22(30)24(36-26)25(32)33/h1,5,11-12,15-19,21-24,26,29-31,34H,2-4,6-10,13-14H2,(H,27,28)(H,32,33)/b5-1-,12-11+