Showing structure for 15-[5-(3,3-dimethyloxiran-2-yl)-2-hydroxyoxolan-3-yl]-3-hydroxy-2,6,6,10-tetramethylpentacyclo[12.3.1.0¹,¹⁴.0²,¹¹.0⁵,¹⁰]octadecan-7-yl 2-methylbut-2-enoate