Ethyl 2-chloro-3-nitro-4-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-chloro-6-methyl-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 3-chloro-6-methyl-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-chloro-6-methyl-4-(trifluoromethoxy)pyridine-2-acetate