2-Bromo-6-chloro-5-(difluoromethyl)pyridine-3-carboxamide
2-Bromo-4-chloro-6-(difluoromethyl)pyridine-3-carboxamide
4-Amino-2-(difluoromethyl)-3-nitropyridine-6-carboxamide
3-Amino-4-(difluoromethyl)-6-nitropyridine-2-carboxamide
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