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