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