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