Showing structure for (2s,3r,4s,5s,7s,9s,10e,13s)-2,4,5-tris(acetyloxy)-13-hydroxy-5,9,12,12-tetramethyl-8,14-dioxotricyclo[11.2.1.0³,⁷]hexadeca-1(15),10-dien-7-yl acetate