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