Showing structure for (1s,2s,3s,7r,9r,13r)-13-hydroxy-9,13-dimethyl-4-methylidene-5,12-dioxo-6,14-dioxatricyclo[8.3.1.0³,⁷]tetradec-10-en-2-yl (2e)-2-methylbut-2-enoate