5-Chloro-2-mercaptoisonicotinonitrile
4-Bromo-2-(chloromethyl)-6-(difluoromethyl)pyridine-3-acetic acid
2-(Difluoromethyl)-6-fluoro-3-methylpyridine-5-sulfonyl chloride
Methyl 2-chloro-3-(difluoromethyl)-4-iodopyridine-5-carboxylate
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