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