N-[(6-chloropyridin-3-yl)methyl]-2,2-difluoroethane-1-amine

sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate

sodium 4-(ethoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate

ethyl 2-ethoxy-4-oxofuran-3-carboxylate

isopropyl 2-isopropoxy-4-oxo-4,5-dihydrofuran-3-carboxylate