Ethyl 2-(fluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-(fluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-(chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 3-(chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-5-acetate