| 摘要 |
<p>PCT No. PCT/EP96/03749 Sec. 371 Date Jun. 29, 1998 Sec. 102(e) Date Jun. 29, 1998 PCT Filed Aug. 26, 1996 PCT Pub. No. WO97/09334 PCT Pub. Date Mar. 13, 1997The invention relates to a method for the production of magnesium pyridoxal-5'-phosphate glutamate, in which pyridoxine or an acid addition salt thereof is oxidised with manganese (IV) oxide to pyridoxal; pyridoxal is reacted with p-phenetidine under formation of the Schiff's base p-phenetidyl-pyridoxal; p-phenedityl-pyridoxal is selectively phosphorylated on the 5'-hydroxymethyl group under formation of p-phenetidyl-pyridoxal-5'-phosphate; p-phenetidyl-pyridoxal-5'-phosphate is hydrolysed under formation of an alkali metal salt of pyridoxal-5'-phosphate; the alkali metal ions are removed in order to obtain pyridoxal-5'-phosphate; pyridoxal-5'-phosphate is reacted with a reaction product of a magnesium alcoholate and L-glutarnic acid; and the formed magnesium pyridoxal-5'-phosphate glutamate is isolated. Furthermore, the invention relates to intermediate products obtained with this method.</p> |
