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    • 2. 发明专利
    • Method for producing valsartan
    • 生产VALSARTAN的方法
    • JP2010254709A
    • 2010-11-11
    • JP2010173583
    • 2010-08-02
    • Novartis Agノバルティス アーゲー
    • HIRT HANSSEDELMEIER GOTTFRIEDKRELL CHRISTOPH
    • C07D257/04C07B61/00C07D407/04
    • C07D257/04Y02P20/55
    • PROBLEM TO BE SOLVED: To provide a new method for producing valsartan. SOLUTION: There is provided a production method comprising the steps of: (i) reacting a compound represented by formula (iva) or a salt thereof with a compound represented by formula (ivb) under an acidic condition; (ii) reacting the obtained compound represented by formula (ivc) with a compound represented by formula (ivd) in the presence of a transition metal catalyst; (iii) removing the protective group from the obtained compound represented by formula (ive) by treating with an acid in a continuous or single step; and (iv) isolating the obtained compound represented by formula (IIa'), or a salt thereof. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种生产缬沙坦的新方法。 提供了一种制备方法,其包括以下步骤:(i)在酸性条件下使由式(iva)表示的化合物或其盐与式(ivb)表示的化合物反应; (ii)在过渡金属催化剂的存在下,使得到的式(ivc)表示的化合物与式(ivd)表示的化合物反应; (iii)用连续或单步的酸处理从所得到的式(ive)化合物中除去保护基; 和(iv)分离由式(IIa')表示的所得化合物或其盐。 版权所有(C)2011,JPO&INPIT