2-(Chloromethyl)-3-cyano-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
5-Chloro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid
3-Chloro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid
6-Chloro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid