4-Cyano-3-hydroxy-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Cyano-2-fluoro-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine
2-Fluoro-4-iodo-3-nitro-5-(trifluoromethoxy)pyridine
3-Cyano-2-fluoro-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine
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