3-Chloro-2-(difluoromethyl)pyridine-6-carboxamide
5-Amino-2-(difluoromethyl)pyridine-4-carboxamide
6-Chloro-2-(difluoromethyl)pyridine-3-carboxamide
2-Amino-5-(difluoromethyl)pyridine-4-carboxamide
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