Methyl 2-bromo-3-(chloromethyl)-5-(difluoromethyl)pyridine-6-carboxylate
Methyl 2-bromo-3-(chloromethyl)-4-(difluoromethyl)pyridine-6-carboxylate
Ethyl 2-bromo-3-(difluoromethyl)-5-nitropyridine-4-carboxylate
3-Bromo-6-(chloromethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid