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