Ethyl 3-chloro-5-cyano-4-(difluoromethyl)pyridine-2-carboxylate
2-Chloro-6-cyano-3-(difluoromethyl)-5-iodopyridine
2-Chloro-5-cyano-6-(difluoromethyl)-3-iodopyridine
Ethyl 3-chloro-5-cyano-2-(difluoromethyl)pyridine-4-carboxylate
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