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