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