3-(Bromomethyl)-2-cyano-5-(trifluoromethoxy)pyridine-6-acetic acid
Ethyl 2-(chloromethyl)-5-cyano-4-(trifluoromethoxy)pyridine-3-acetate
3-Cyano-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-Cyano-4-(fluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetonitrile