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