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