4-Chloro-2-cyano-6-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-2-cyano-3-(trifluoromethoxy)pyridine-6-acetonitrile
4-Chloro-2-hydroxy-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Chloro-5-cyano-6-(trifluoromethoxy)pyridine-2-acetonitrile