Showing structure for methyl 2-[4,5,10-tris(acetyloxy)-12-(furan-3-yl)-6,6,8,11,16-pentamethyl-14,17-dioxo-2,13-dioxatetracyclo[7.6.2.0¹,¹¹.0³,⁸]heptadecan-7-yl]acetate