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