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