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