4-Fluoro-6-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Fluoro-2-nitro-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
5-(Aminomethyl)-2-fluoro-3-methoxy-6-(trifluoromethoxy)pyridine
5-Fluoro-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride