2-Cyano-3-nitro-5-(trifluoromethoxy)pyridine-4-acetic acid
2-(Aminomethyl)-4-cyano-5-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Fluoro-3-hydroxy-4-iodo-5-(trifluoromethoxy)pyridine
2-(Aminomethyl)-3-cyano-6-(trifluoromethoxy)pyridine-5-carboxylic acid