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