2-Chloro-3-(chloromethyl)-6-nitro-5-(trifluoromethoxy)pyridine
2-(Aminomethyl)-5-bromo-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Bromo-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Chloro-6-(fluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine