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