Ethyl 6-bromo-2-cyano-3-(difluoromethyl)pyridine-4-acetate
Ethyl 2-bromo-5-cyano-6-(difluoromethyl)pyridine-3-acetate
5-Bromo-3-cyano-4-(difluoromethyl)pyridine-2-carbonyl chloride
Ethyl 6-bromo-4-cyano-2-(difluoromethyl)pyridine-3-acetate
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