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