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