2-Bromo-3,4-diamino-5-(difluoromethyl)pyridine
3-Bromo-4,6-diamino-2-(difluoromethyl)pyridine
5-(Chloromethyl)-2-(difluoromethyl)pyridine-4-carbonyl chloride
5-Bromo-2,3-diamino-6-(difluoromethyl)pyridine
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