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