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