Showing structure for (1s,4s,8r,9r,12s,13s,16r)-9-hydroxy-7,7-dimethyl-17-methylidene-3,10-dioxapentacyclo[14.2.1.0¹,¹³.0⁴,¹².0⁸,¹²]nonadecane-2,18-dione