Showing structure for (1r,2s,3r,7r,8s,9r,11s,13s)-1,9-dihydroxy-9,13-dimethyl-8-{[(2r)-2-methylbutanoyl]oxy}-4-methylidene-5-oxo-6,14-dioxatricyclo[9.2.1.0³,⁷]tetradecan-2-yl (2z)-2-methylbut-2-enoate