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