Showing structure for (1s,2s,3s,5s,8r,9r,10s,11r,18r)-9,10,18-trihydroxy-12,12-dimethyl-6-methylidene-7-oxo-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-3-yl acetate