5-Amino-3-(chloromethyl)-4-cyano-2-(difluoromethyl)pyridine
4-(Bromomethyl)-5-(difluoromethyl)-3-methoxy-2-methylpyridine
3-Amino-6-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Difluoromethyl)-2-hydroxy-6-iodopyridine-3-acetic acid
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