InChI=1S/C23H44O6/c1-3-5-7-9-10-12-14-16-22(26)28-18-21(25)19-29-23(27)17-20(24)15-13-11-8-6-4-2/h20-21,24-25H,3-19H2,1-2H3/t20?,21-/m0/s1