6-Bromo-3-cyano-4-(difluoromethyl)pyridine-2-sulfonyl chloride
2-Bromo-3-(difluoromethyl)-4-fluoro-5-(trifluoromethyl)pyridine
3-Bromo-6-(chloromethyl)-2-(difluoromethyl)-5-fluoropyridine
6-Bromo-4-cyano-2-(difluoromethyl)pyridine-3-sulfonyl chloride