2-Cyano-4-nitro-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Cyano-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
5-(Aminomethyl)-4-chloro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-(Aminomethyl)-2-chloro-6-(trifluoromethoxy)pyridine-5-carboxylic acid