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