5-Chloro-4-cyano-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-3-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Chloro-4-cyano-5-(trifluoromethoxy)pyridine-2-acetonitrile
3-Chloro-5-(chloromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid