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