Showing structure for (1s,5z,9s,10s,11s,12s,14r,16r)-9-isopropyl-6,14-dimethyl-2-methylidene-13-oxo-15,17-dioxatricyclo[8.7.0.0¹¹,¹⁶]heptadec-5-en-12-yl (2z)-2-methylbut-2-enoate