Ethyl 5-bromo-2-(difluoromethyl)pyridine-4-carboxylate
3-Bromo-2-(difluoromethyl)pyridine-6-sulfonyl chloride
Ethyl 4-bromo-3-(difluoromethyl)pyridine-5-carboxylate
3-(Chloromethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid
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