2-Amino-5-chloro-3-(difluoromethyl)pyridine-4-sulfonamide
3-(Aminomethyl)-2-cyano-6-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Amino-2-(difluoromethyl)-5-methoxypyridine-4-carboxylic acid
3-Amino-4-(difluoromethyl)-2-methoxypyridine-6-carbonyl chloride