Showing structure for (1s,4s,6s,8r,9r,12s,13s,16r)-9-hydroxy-7,7-dimethyl-17-methylidene-2,18-dioxo-3,10-dioxapentacyclo[14.2.1.0¹,¹³.0⁴,¹².0⁸,¹²]nonadecan-6-yl acetate