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