Methyl 4-(chloromethyl)-2-(difluoromethyl)-3-hydroxypyridine-6-acetate
4-(Difluoromethyl)-3-hydroxy-2-(trifluoromethyl)pyridine-6-acetonitrile
6-(Difluoromethyl)-2-hydroxy-4-(trifluoromethyl)pyridine-3-acetonitrile
2-(Bromomethyl)-6-(difluoromethyl)-3-hydroxypyridine-5-acetonitrile