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