2-(Chloromethyl)-3-hydroxy-4-nitro-6-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-hydroxy-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
5-(Bromomethyl)-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
3-Hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-methanol