3-Bromo-2-(chloromethyl)-5-cyano-4-(difluoromethyl)pyridine
3-Amino-6-cyano-2-(difluoromethyl)-4-nitropyridine
4-Amino-5-(bromomethyl)-2-(difluoromethyl)-3-methoxypyridine
4-Chloro-5-(difluoromethyl)-2-hydroxy-3-iodopyridine
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