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