Showing structure for (1s,2s,4s,5r,8s,9s,11s,14s,15r)-9-hydroxy-4,8,13,13,15-pentamethyl-12-oxapentacyclo[7.7.0.0¹,⁵.0²,¹⁴.0¹¹,¹⁵]hexadecane-10,16-dione