Showing structure for (1r,2r,10r,15r,16r,17s,18r,20z)-18-hydroxy-6,6,15,17,21-pentamethyl-23-oxahexacyclo[14.8.2.0¹,¹⁵.0²,¹².0⁵,¹⁰.0¹⁰,¹²]hexacos-20-ene-7,22-dione