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