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