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