4-Bromo-2-nitro-3-(trifluoromethoxy)pyridine-5-acetic acid
5-Bromo-2-(chloromethyl)-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-(Aminomethyl)-4-bromo-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Bromo-3-nitro-4-(trifluoromethoxy)pyridine-2-acetic acid