2-Hydroxy-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Bromo-3-fluoro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Fluoro-4-iodo-3-mercaptopyridine
Methyl 5-chloro-2-cyano-4-(trifluoromethoxy)pyridine-3-carboxylate
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