3-(Aminomethyl)-6-chloro-2-(difluoromethyl)pyridine-4-carboxylic acid
4-(Aminomethyl)-6-chloro-2-(difluoromethyl)pyridine-3-carboxylic acid
3-Cyano-2-(difluoromethyl)-5-iodopyridine-6-acetonitrile
6-Cyano-4-(difluoromethyl)-3-iodopyridine-2-acetonitrile