InChI=1S/C23H38O5/c1-2-21(26)17-15-13-11-9-7-5-3-4-6-8-10-12-14-16-18-23(27)28-22(19-24)20-25/h4-7,10-13,21-22,24-26H,2-3,8-9,14-20H2,1H3/b6-4-,7-5-,12-10-,13-11-/t21-/m1/s1