3-Bromo-6-cyano-2-(difluoromethyl)pyridine-4-sulfonyl chloride
2-Bromo-3-(difluoromethyl)-5-fluoro-6-methoxypyridine
2-Bromo-5-cyano-4-(difluoromethyl)pyridine-3-sulfonyl chloride
4-Bromo-6-(difluoromethyl)-3-fluoro-2-iodopyridine
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