InChI=1S/C23H38O5/c1-2-3-4-5-10-13-16-21(26)17-14-11-8-6-7-9-12-15-18-23(27)28-22(19-24)20-25/h7-11,13-14,17,21-22,24-26H,2-6,12,15-16,18-20H2,1H3/b9-7-,11-8-,13-10-,17-14+/t21-/m0/s1