2-(Bromomethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine-3-acetic acid
3-(Chloromethyl)-5-fluoro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-(Bromomethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-5-acetic acid
6-(Bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-acetic acid