6-Bromo-3-(chloromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine
3-Bromo-5-(difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine
2-Bromo-6-(difluoromethyl)-5-fluoro-3-(trifluoromethoxy)pyridine
6-Bromo-3-(difluoromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine