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