Methyl 3-bromo-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carboxylate
4-Chloro-3-cyano-2-(difluoromethyl)-5-nitropyridine
4-Chloro-2-cyano-6-(difluoromethyl)-3-nitropyridine
Methyl 5-bromo-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carboxylate