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