Showing structure for methyl 1-(chloromethyl)-2-hydroxy-8-{[2-(hydroxymethyl)but-2-enoyl]oxy}-9-[(2-methylbutanoyl)oxy]-6-methylidene-5-oxo-4,14-dioxatricyclo[9.2.1.0³,⁷]tetradecane-10-carboxylate