Ethyl 2-chloro-3-cyano-6-(difluoromethyl)pyridine-4-acetate
Methyl 3-chloro-6-cyano-2-(difluoromethyl)pyridine-5-acetate
3-Chloro-4-(difluoromethyl)-2-iodo-5-methoxypyridine
6-Chloro-3-cyano-2-(difluoromethyl)pyridine-4-sulfonyl chloride
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