Showing structure for (2r,3r,3ar,4s,7s,7ar)-4-{[(2z)-3-[(r)-methanesulfinyl]prop-2-enoyl]oxy}-7,7a-dimethyl-4'-methylidene-2'-oxo-hexahydro-1h-spiro[indene-2,3'-oxolan]-3-yl 3-methylbutanoate