4-Cyano-6-(difluoromethyl)-2-methoxypyridine-3-carboxylic acid
3-Cyano-5-(difluoromethyl)-4-methoxypyridine-2-carboxylic acid
5-Cyano-4-(difluoromethyl)-2-methoxypyridine-3-carboxylic acid
3-(Aminomethyl)-5-cyano-2-(difluoromethyl)pyridine-6-carboxaldehyde