Showing structure for 4,19,21-tris(acetyloxy)-6-(furan-3-yl)-12,20-dihydroxy-5,11,15-trimethyl-3-oxo-9,17-dioxahexacyclo[13.3.3.0¹,¹⁴.0²,¹¹.0⁵,¹⁰.0⁸,¹⁰]henicosan-16-yl 2-methylpropanoate