3-Fluoro-5-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-(Aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid
6-Fluoro-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Fluoro-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride