4-Chloro-3-cyano-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Chloro-5-cyano-3-(trifluoromethoxy)pyridine-2-sulfonamide
3-Chloro-5-(chloromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylic acid
6-Chloro-4-fluoro-3-iodo-2-(trifluoromethoxy)pyridine