Showing structure for methyl 2-[6-(furan-3-yl)-10-hydroxy-1,7,11,13,13-pentamethyl-4,14-dioxo-5,17-dioxatetracyclo[8.7.0.0²,⁷.0¹¹,¹⁶]heptadeca-2,15-dien-12-yl]acetate