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