3-(Chloromethyl)-6-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine
2-(Bromomethyl)-4-hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine
5-Hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-3-carbonyl chloride
3-Hydroxy-4-nitro-5-(trifluoromethoxy)pyridine-2-carbonyl chloride