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