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