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