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