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