InChI=1S/C26H38O9/c1-15(10-11-17-16(2)9-7-12-25(17,3)4)8-6-13-26(5,14-18(27)28)35-24-21(31)19(29)20(30)22(34-24)23(32)33/h6,8,10-11,13,19-22,24,29-31H,7,9,12,14H2,1-5H3,(H,27,28)(H,32,33)/b11-10+,13-6+,15-8-