Showing structure for methyl (2e,4r,6r)-4-hydroxy-6-[(1s,2s,5r,7s,10s,11r,14s,15r)-5-hydroxy-2,6,6,14,15-pentamethyl-12-oxo-18-oxapentacyclo[8.7.1.0¹,¹⁰.0²,⁷.0¹¹,¹⁵]octadecan-14-yl]-2-methylhept-2-enoate