Showing structure for 6-[4-(3,3-dimethyloxiran-2-yl)-4-hydroxybut-2-en-2-yl]-9,10,14,14-tetramethyl-16-oxapentacyclo[13.2.2.0¹,¹³.0²,¹⁰.0⁵,⁹]nonadecane-3,15-diol