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