4-(Aminomethyl)-2-(difluoromethyl)-3-hydroxypyridine-5-carboxylic acid
Methyl 2-(bromomethyl)-6-(difluoromethyl)-3-hydroxypyridine-5-acetate
Ethyl 2-(chloromethyl)-4-(difluoromethyl)-5-hydroxypyridine-3-acetate
6-(Chloromethyl)-4-(difluoromethyl)-3-hydroxypyridine-2-acetonitrile