Showing structure for (1s,8r,9r,12s,13r,16r)-8-[(2s,3e,5r)-5,6-dimethylhept-3-en-2-yl]-16-hydroxy-9,13-dimethyl-18,19-dioxapentacyclo[10.5.2.0¹,¹³.0⁴,¹².0⁵,⁹]nonadec-4-en-3-one