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