3-Bromo-5-(difluoromethyl)-2-nitropyridine-6-carboxaldehyde
2-(Aminomethyl)-4-bromo-6-(difluoromethyl)-3-(trifluoromethyl)pyridine
5-Bromo-4-(difluoromethyl)-2-nitropyridine-3-carboxaldehyde
5-Bromo-4-(difluoromethyl)-3-nitropyridine-2-carboxaldehyde