Showing structure for (1r,2r,5s,7s,10r,11r,14r,16s)-2,5,7,10,15,15-hexamethyl-7-(4-methylpent-3-en-1-yl)-19-oxapentacyclo[14.2.1.0¹,¹⁴.0²,¹¹.0⁵,¹⁰]nonadecane