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