Ethyl 2-bromo-3-(difluoromethyl)pyridine-6-acetate
2-Cyano-4-(difluoromethyl)pyridine-5-acetonitrile
5-Bromo-4-(difluoromethyl)pyridine-2-sulfonyl chloride
4-Cyano-2-(difluoromethyl)-5-(trifluoromethyl)pyridine
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