Showing structure for (2r,3r,5s,11s)-3-hydroxy-2,11-dimethyl-6-methylidene-7-oxo-8,12,13-trioxatetracyclo[9.2.2.0¹,¹⁰.0⁵,⁹]pentadec-14-en-2-yl (2e)-2-methylbut-2-enoate