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