3-Chloro-6-hydroxy-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-Chloro-2-iodo-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
4-Chloro-3-iodo-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-Chloro-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carbonyl chloride