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