5-(Bromomethyl)-2-cyano-4-(difluoromethyl)pyridine
2-(Bromomethyl)-3-(difluoromethyl)pyridine-4-carboxylic acid
2-(Difluoromethyl)-3-iodopyridine-6-sulfonamide
4-(Chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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