Showing structure for (2s,3ar,7r,12s)-3,4,6,13a-tetrakis(acetyloxy)-2,9,9,12-tetramethyl-5-methylidene-8,13-dioxo-1h,2h,3h,3ah,4h,6h,7h,12h-cyclopenta[12]annulen-7-yl benzoate