5-Amino-2-(difluoromethyl)-3-iodopyridine-6-carboxylic acid
2-Cyano-6-(difluoromethyl)-5-methoxypyridine-3-carboxylic acid
2-Cyano-6-(difluoromethyl)-3-methoxypyridine-5-carboxylic acid
3-(Aminomethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid