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