2-Chloro-5-methyl-3-nitro-4-(trifluoromethoxy)pyridine
2-Bromo-3-fluoro-6-mercaptopyridine
3-Cyano-5-(difluoromethyl)-4-iodo-2-nitropyridine
3-(Difluoromethyl)-5-hydroxy-2-methoxypyridine-6-carbonyl chloride
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