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