5-(Bromomethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetic acid
3-(Chloromethyl)-2-iodo-4-methyl-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-5-acetic acid
5-(Bromomethyl)-4-iodo-3-methyl-2-(trifluoromethoxy)pyridine