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