4-Amino-6-(difluoromethyl)-2-iodopyridine-3-carboxamide
2-Amino-6-(difluoromethyl)-3-iodopyridine-4-carboxamide
2-Amino-3-chloro-4-(difluoromethyl)pyridine-6-carboxamide
3-Amino-6-bromo-2-(difluoromethyl)pyridine-4-carboxamide
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