Showing structure for [(1s,3s,8r,9r,11r,12s,13s,14s,18r,19r)-12-(acetyloxy)-8-hydroxy-1,11,14,18-tetramethyl-7-oxapentacyclo[11.8.0.0³,¹¹.0⁵,⁹.0¹⁴,¹⁹]henicos-4-en-18-yl]methyl acetate