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