2-Fluoro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetic acid
2-(Bromomethyl)-6-fluoro-3-iodo-4-(trifluoromethoxy)pyridine
2-Fluoro-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid
6-(Bromomethyl)-3-fluoro-4-iodo-2-(trifluoromethoxy)pyridine