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