4-Bromo-3-(difluoromethyl)-2-nitropyridine-5-sulfonyl chloride
4-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-6-acetonitrile
3-(Aminomethyl)-5-bromo-2-(difluoromethyl)pyridine-6-acetonitrile
2-(Aminomethyl)-4-bromo-5-(difluoromethyl)pyridine-3-acetonitrile