2-Bromo-5-(difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine
6-Chloro-4-cyano-3-fluoro-2-(trifluoromethoxy)pyridine
2-Bromo-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetonitrile
6-Bromo-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetonitrile