Showing structure for (1s,2r,3s,4s,7s,8z,10s,11r,12r,13s,16r,17s)-10,11,12,16-tetrakis(acetyloxy)-3,4,17-trihydroxy-4,9,13,17-tetramethyl-5-oxo-6-oxatricyclo[11.4.0.0³,⁷]heptadeca-8,14-dien-2-yl acetate