Showing structure for 9-(furan-3-yl)-15-(1-hydroxy-2-methoxy-2-oxoethyl)-10,14,16,16-tetramethyl-7,18-dioxo-3,8-dioxapentacyclo[12.3.1.0²,⁴.0⁴,¹³.0⁵,¹⁰]octadecan-17-yl propanoate