Ethyl 4-(difluoromethyl)-2-hydroxy-5-methylpyridine-3-acetate
Ethyl 4-(difluoromethyl)-3-hydroxy-2-nitropyridine-6-acetate
Methyl 5-(difluoromethyl)-3-hydroxy-4-methoxypyridine-2-carboxylate
4-(Bromomethyl)-5-(difluoromethyl)-3-hydroxy-2-methylpyridine