5-(Chloromethyl)-2-cyano-4-(difluoromethyl)-3-iodopyridine
4-(Aminomethyl)-5-cyano-3-(difluoromethyl)-2-methylpyridine
4-(Chloromethyl)-6-cyano-2-(difluoromethyl)-3-iodopyridine
5-Cyano-4-(difluoromethyl)-2-fluoropyridine-3-carboxylic acid
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