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