Methyl 3-bromo-2-cyano-6-(difluoromethyl)pyridine-5-acetate
Methyl 6-bromo-4-cyano-2-(difluoromethyl)pyridine-3-acetate
4-Bromo-2-(difluoromethyl)-3-iodo-5-methylpyridine
Methyl 6-bromo-4-cyano-3-(difluoromethyl)pyridine-2-acetate
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