InChI=1S/C26H40O/c1-17(2)6-7-18(3)22-10-11-23-21-9-8-19-16-20(27)12-14-25(19,4)24(21)13-15-26(22,23)5/h6-7,16-18,21-24H,8-15H2,1-5H3/b7-6+