Showing structure for methyl (3as,4s,5s,11s,11as)-4-{[(2z)-2-ethylidene-4-oxopentanoyl]oxy}-11-hydroxy-5-[(2s)-2-methylbutoxy]-3,10-dimethylidene-2-oxo-3ah,4h,5h,8h,9h,11h,11ah-cyclodeca[b]furan-6-carboxylate