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