InChI=1S/C25H32O7/c1-17(2)11-12-30-23-16-31-21-10-9-18(13-22(21)32-25(23,3)4)7-6-8-19(14-26)20(15-29-5)24(27)28/h6-11,13,15,23,26H,12,14,16H2,1-5H3,(H,27,28)/b7-6-,19-8-,20-15-