InChI=1S/C27H42O7/c1-16(29)33-23-17(13-22(31)34-23)18(30)14-21-26(5)11-7-19-24(2,3)9-6-10-25(19,4)20(26)8-12-27(21,32)15-28/h13,18-21,23,28,30,32H,6-12,14-15H2,1-5H3