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