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