Showing structure for (2r,4r,5r,7r,8e,10r,11s)-2,10-bis(acetyloxy)-7-hydroxy-4,14,15,15-tetramethyl-3,13-dioxotricyclo[9.3.1.1⁴,⁸]hexadeca-1(14),8-dien-5-yl acetate