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