4-Hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid
3-(Chloromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-5-acetic acid
3-Hydroxy-5-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Chloromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-acetic acid