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