Showing structure for (1r,2r,3ar,5s,10r,11s,13r,13as)-1,3a,10,11,13-pentakis(acetyloxy)-2,5,8,8-tetramethyl-12-methylidene-4,9-dioxo-1h,3h,5h,10h,11h,13h,13ah-cyclopenta[12]annulen-2-yl benzoate