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