6-(Bromomethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-acetic acid
4-Cyano-5-(fluoromethyl)-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-(Bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-4-acetic acid
2-(Bromomethyl)-4-cyano-3-(trifluoromethoxy)pyridine-5-acetic acid