Showing structure for methyl (1r,3s,6s,7s,10r,11r)-10-[(1r,6r)-6-[(acetyloxy)methyl]-1,5,5-trimethyl-4-oxocyclohex-2-en-1-yl]-6-(furan-3-yl)-7,11-dimethyl-4-oxo-2,5-dioxatricyclo[5.4.0.0?,?]undecane-11-carboxylate