5-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-6-acetonitrile
4-(Aminomethyl)-5-bromo-2-(difluoromethyl)pyridine-3-acetonitrile
2-Bromo-4-(chloromethyl)-6-(difluoromethyl)pyridine-3-acetonitrile
3-(Aminomethyl)-4-bromo-5-(difluoromethyl)pyridine-2-acetonitrile