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