4,5-Diamino-3-(difluoromethyl)-2-fluoropyridine
6-Bromo-2,3-difluoro-4-(difluoromethyl)pyridine
3,4-Diamino-2-(difluoromethyl)-5-fluoropyridine
5-Bromo-2,3-difluoro-4-(difluoromethyl)pyridine
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