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