Methyl 3-amino-5-cyano-4-(difluoromethyl)pyridine-2-acetate
4-(Aminomethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-(Difluoromethyl)-5-fluoro-6-hydroxypyridine-2-acetonitrile
4-Chloro-2-hydroxy-6-iodo-3-(trifluoromethoxy)pyridine