Ethyl 4-(difluoromethyl)-3-fluoro-2-iodopyridine-6-carboxylate
Methyl 2,4-difluoro-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-(difluoromethyl)-4-nitropyridine-3-acetate
2-(Chloromethyl)-4-(difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine