Showing structure for (3ar,4r,9s,11ar)-9-hydroxy-6-(methoxycarbonyl)-10-methyl-3-methylidene-2-oxo-3ah,4h,5h,8h,9h,11ah-cyclodeca[b]furan-4-yl (2r,3r)-2,3-dimethyloxirane-2-carboxylate