2-Chloro-4-cyano-6-(difluoromethyl)pyridine-3-carboxamide
2-Chloro-3-cyano-6-(difluoromethyl)pyridine-4-carboxamide
3-Bromo-5-(difluoromethyl)-6-nitropyridine-2-carboxamide
3-Bromo-5-(difluoromethyl)-2-nitropyridine-6-carboxamide
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