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