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