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