Showing structure for (1r,2s,3s,5s,7r,8r,9s,10s,11r,16s,18r)-16-methoxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1⁵,⁸.0¹,¹¹.0²,⁸]octadecane-3,7,9,10,18-pentol