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