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