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