InChI=1S/C25H46O4/c1-3-5-7-9-10-11-12-13-14-15-19-23-29-25(27)21-17-16-20-24(26)28-22-18-8-6-4-2/h6,8H,3-5,7,9-23H2,1-2H3/b8-6-