Showing structure for methyl (1r,2s,9r,10s,13r,14r,17r)-17-hydroxy-9-methyl-5,16-dioxapentacyclo[12.3.3.0¹,¹³.0²,¹⁰.0⁴,⁸]icosa-4(8),6-diene-14-carboxylate