4-Bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine-6-acetonitrile
5-(Chloromethyl)-2,3-difluoro-4-(difluoromethyl)pyridine
6-Bromo-2-(difluoromethyl)pyridine-3-sulfonyl chloride
2-Fluoro-6-nitro-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
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