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