2-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-5-sulfonamide
3-Cyano-4-fluoro-6-methyl-2-(trifluoromethoxy)pyridine
2-Chloro-3-nitro-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-(Aminomethyl)-5-chloro-2-(trifluoromethoxy)pyridine-4-carboxylic acid