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