3-Bromo-5-cyano-2-(difluoromethyl)pyridine-4-carboxamide
6-Bromo-3-cyano-4-(difluoromethyl)pyridine-2-carboxamide
3-Amino-2-(difluoromethyl)-6-iodopyridine-4-carboxamide
3-Amino-6-(difluoromethyl)-4-iodopyridine-2-carboxamide
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