5-(Difluoromethyl)-3-hydroxy-4-nitropyridine-2-acetonitrile
Methyl 4-(bromomethyl)-3-(difluoromethyl)-5-hydroxypyridine-2-carboxylate
3-(Chloromethyl)-5-(difluoromethyl)-2-hydroxypyridine-6-methanol
6-(Chloromethyl)-3-(difluoromethyl)-2-hydroxypyridine-4-methanol