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