4-Cyano-5-(fluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine
2-Fluoro-6-hydroxy-5-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-3-(fluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine
4-Cyano-6-(fluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine
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