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