Showing structure for (1r,3r,4s,6s,8s,9s,10s,12r,13s,14r,15r)-1,8,12,14,15-pentakis(acetyloxy)-3,7,7,15-tetramethyl-11-methylidene-9-[(2-methylpropanoyl)oxy]-2-oxo-5-oxatricyclo[11.3.0.0⁴,⁶]hexadecan-10-yl 2-methylpropanoate