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