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