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