6-(Bromomethyl)-2-cyano-4-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Cyano-4-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile
2-Chloro-5-(chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine