2-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-(Aminomethyl)-5-chloro-2-(trifluoromethoxy)pyridine-4-methanol
3-Cyano-4-nitro-6-(trifluoromethoxy)pyridine-2-sulfonamide
3-(Aminomethyl)-4-chloro-2-(trifluoromethoxy)pyridine-5-methanol