Showing structure for methyl 2-[6-(furan-3-yl)-1,5,15,15-tetramethyl-14-[(3-methyl-2-oxopent-3-en-1-yl)oxy]-8,17-dioxo-7-oxatetracyclo[11.3.1.0²,¹¹.0⁵,¹⁰]heptadec-10-en-16-yl]acetate