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
6-Bromo-3-(chloromethyl)-2-(difluoromethyl)-4-nitropyridine