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