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