Ethyl 4-chloro-5-cyano-2-(difluoromethyl)pyridine-3-acetate
Methyl 3-(chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 4-bromo-3-(bromomethyl)-6-(difluoromethyl)pyridine-2-carboxylate
2-Chloro-3-(difluoromethyl)-5-methyl-4-nitropyridine