2-Amino-3-(difluoromethyl)-5-methoxypyridine-4-acetonitrile
5-(Aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Cyano-2-(difluoromethyl)-4-methoxy-5-nitropyridine
5-Amino-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine