Ethyl 5-fluoro-2-methyl-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-(bromomethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 4-fluoro-5-methyl-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-(bromomethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-2-carboxylate