InChI=1S/C23H38O5/c1-2-3-16-21(26)17-14-12-10-8-6-4-5-7-9-11-13-15-18-23(27)28-22(19-24)20-25/h4-5,8-11,14,17,21-22,24-26H,2-3,6-7,12-13,15-16,18-20H2,1H3/b5-4-,10-8-,11-9-,17-14-/t21-/m1/s1