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