Methyl 3-cyano-4-methyl-5-(trifluoromethoxy)pyridine-2-acetate
3-(Chloromethyl)-6-fluoro-4-(trifluoromethoxy)pyridine-2-acetonitrile
5-(Chloromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Chloromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-5-acetonitrile