Showing structure for methyl 2-[(1r,2s)-2-[(1ar,3r,3ar,4r,5r,6r,7as)-4,5-bis(acetyloxy)-3-(5-hydroxy-2-oxo-5h-furan-3-yl)-3a-methyl-7-methylidene-hexahydroindeno[1,7a-b]oxiren-6-yl]-2,6,6-trimethyl-5-oxocyclohex-3-en-1-yl]acetate