Showing structure for methyl (1s,4r,5r,7s,9r,11s,13r,16r,17r)-7-(furan-3-yl)-4-methyl-8,10,12-trioxapentacyclo[11.3.1.0¹,¹¹.0⁵,⁹.0⁵,¹⁶]heptadecane-17-carboxylate