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