Ethyl 2-(chloromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-(chloromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-(chloromethyl)-3-fluoro-5-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-(chloromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-5-acetate