4-Amino-5-(bromomethyl)-2-(difluoromethyl)pyridine-3-carboxaldehyde
4-Amino-3-(bromomethyl)-5-(difluoromethyl)pyridine-2-carboxaldehyde
4-Amino-2-(bromomethyl)-3-(difluoromethyl)-6-nitropyridine
5-Amino-4-(bromomethyl)-3-(difluoromethyl)-2-nitropyridine