Showing structure for 18-(acetyloxy)-6-(furan-3-yl)-16-hydroxy-12-(2-methoxy-2-oxoethyl)-7,11,13,13-tetramethyl-4-oxo-5,17-dioxapentacyclo[13.2.1.0¹,¹⁰.0²,⁷.0¹¹,¹⁶]octadec-2-en-14-yl 2-methylpropanoate