4-Chloro-6-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
4-Chloro-2-(fluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine
5-Chloro-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Chloro-4-hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine