4-Cyano-3-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Cyano-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Fluoro-4-hydroxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-Cyano-5-fluoro-2-nitro-6-(trifluoromethoxy)pyridine
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