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