InChI=1S/C23H38O5/c1-2-3-4-5-7-10-13-16-21(26)17-14-11-8-6-9-12-15-18-23(27)28-22(19-24)20-25/h6-7,9-11,13-14,16,21-22,24-26H,2-5,8,12,15,17-20H2,1H3/b9-6+,10-7-,14-11-,16-13-/t21-/m0/s1