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