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