2-Cyano-6-(difluoromethyl)-3-fluoropyridine-5-carboxamide
2-Cyano-5-(difluoromethyl)-6-fluoropyridine-3-carboxamide
4-Chloro-3-(difluoromethyl)-5-nitropyridine-2-carboxamide
4-Chloro-3-(difluoromethyl)-2-nitropyridine-5-carboxamide
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