6-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Fluoro-4-nitro-3-(trifluoromethoxy)pyridine-5-carbonyl chloride
2-Cyano-5-fluoro-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
6-Fluoro-4-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid