3-(Bromomethyl)-2-cyano-6-(difluoromethyl)-5-fluoropyridine
3-Cyano-2-(difluoromethyl)-6-iodo-4-nitropyridine
3-(Chloromethyl)-4-cyano-2-(difluoromethyl)-5-fluoropyridine
5-(Aminomethyl)-3-cyano-4-(difluoromethyl)-2-iodopyridine
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