3,4-Dibromo-2-(difluoromethyl)pyridine-5-sulfonyl chloride
4,6-Dibromo-3-(difluoromethyl)pyridine-2-sulfonyl chloride
2,3-Dibromo-5-(difluoromethyl)pyridine-6-sulfonyl chloride
3-Cyano-2,6-dichloro-4-(difluoromethyl)pyridine
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