Showing structure for (1s,2s,6r,7r,8r,12r,14s)-7-hydroxy-9,14-dimethyl-5-methylidene-4-oxo-3,13-dioxatetracyclo[8.4.0.0²,⁶.0¹²,¹⁴]tetradec-9-en-8-yl 3-methylbut-2-enoate