Showing structure for (1r,2s,5s,8r,9s,11r,15s,18r)-9,15,18-trihydroxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecan-7-one