Ethyl 4-(difluoromethyl)-2,3-dimethoxypyridine-5-carboxylate
Ethyl 4,6-dibromo-2-(difluoromethyl)pyridine-3-acetate
5-(Chloromethyl)-2-(difluoromethyl)pyridine-3-sulfonyl chloride
Methyl 5-(difluoromethyl)-3,4-dimethoxypyridine-2-carboxylate
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