2-Hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Fluoro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylic acid
6-Fluoro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Fluoro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid