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