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