5-(Chloromethyl)-4-cyano-2-(trifluoromethoxy)pyridine-3-acetic acid
5-Fluoro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetonitrile
4-Fluoro-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetonitrile
4-Fluoro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-acetonitrile