InChI=1S/C27H40O8/c1-8-9-23(30)35-21-13-11-15(2)10-12-19(16(3)26(32)33-7)25(31)24-17(4)20(29)14-22(27(21,24)6)34-18(5)28/h10,12,16-17,20-22,24,29H,8-9,11,13-14H2,1-7H3/b15-10?,19-12-