3-Cyano-4-fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine
3-Cyano-2-fluoro-5-hydroxy-6-(trifluoromethoxy)pyridine
4-Chloro-3-(fluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine
4-Chloro-6-(chloromethyl)-3-methyl-2-(trifluoromethoxy)pyridine
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