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