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