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