Showing structure for methyl 6-(furan-2-yl)-9,17-dihydroxy-1,7,11,15-tetramethyl-14,18-dioxo-8-(propanoyloxy)-3-oxapentacyclo[8.8.0.0²,⁴.0²,⁷.0¹¹,¹⁶]octadeca-12,16-diene-15-carboxylate