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