Showing structure for methyl (1r,2s,6s,7s,8s,9e,11r)-8-(acetyloxy)-11-hydroxy-13-methyl-7-{[(2z)-2-methylbut-2-enoyl]oxy}-5-methylidene-4-oxo-3,14-dioxatricyclo[9.2.1.0²,⁶]tetradeca-9,12-diene-9-carboxylate