5-Bromo-2-chloro-3-(difluoromethyl)-4-(trifluoromethyl)pyridine
3-Bromo-6-cyano-2-(difluoromethyl)-5-iodopyridine
2-Bromo-3-cyano-6-(difluoromethyl)-5-methoxypyridine
2-Bromo-3-cyano-5-(difluoromethyl)-4-methoxypyridine
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