2-Chloro-4,5-diamino-3-(difluoromethyl)pyridine
5-Chloro-3,4-diamino-2-(difluoromethyl)pyridine
4-Chloro-3,5-dibromo-2-(difluoromethyl)pyridine
2-Chloro-3,4-diamino-6-(difluoromethyl)pyridine
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