InChI=1S/C31H52O9/c1-16(2)28(40,14-32)9-8-17(3)24-18(34)11-26(4)19-6-7-20-29(15-33,25(38)39)21(35)10-22(36)31(20)13-30(19,31)23(37)12-27(24,26)5/h16-24,32-37,40H,6-15H2,1-5H3,(H,38,39)