2-Fluoro-6-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid
6-Fluoro-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid
4-(Aminomethyl)-6-cyano-2-(trifluoromethoxy)pyridine-3-acetic acid
2-Chloro-3-(chloromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid