The present invention relates to a novel process for the preparation of the magnesium salt of the (−)-enantiomer of 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole trihydrate, i.e. S-omeprazole magnesium salt trihydrate. The present invention also relates to the S-omeprazole magnesium salt trihydrate prepared in accordance with the new process and pharmaceutical compositions containing it. Furthermore, the present invention also relates to new intermediates used in the process.
本发明涉及一种制备S-
奥美拉唑镁盐三
水合物的新工艺,该
镁盐是5-甲氧基-2-[[[4-甲氧基-3,5-二甲基-2-
吡啶基]甲基]磺酰基]-1H-
苯并咪唑的(−)-对映体。本发明还涉及按照新工艺制备的S-
奥美拉唑镁盐三
水合物及含有它的制药组合物。此外,本发明还涉及在该工艺中使用的新中间体。