InChI=1S/C26H38O9/c1-15(13-19(28)34-25-22(31)20(29)21(30)23(35-25)24(32)33)7-5-9-17(14-27)10-11-18-16(2)8-6-12-26(18,3)4/h5,7,9-11,15,20-23,25,27,29-31H,6,8,12-14H2,1-4H3,(H,32,33)/b7-5+,11-10+,17-9+