3-(Bromomethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Bromomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-2-acetonitrile
3-Hydroxy-2-iodo-5-(trifluoromethoxy)pyridine-4-acetic acid
6-Hydroxy-2-iodo-3-(trifluoromethoxy)pyridine-4-acetic acid