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