Process for the preparation of simvastatin
    1.
    发明授权
    Process for the preparation of simvastatin 失效
    辛伐他汀的制备方法

    公开(公告)号:US07528265B2

    公开(公告)日:2009-05-05

    申请号:US10501007

    申请日:2002-12-26

    IPC分类号: C07D309/30

    CPC分类号: C07D309/30 Y02P20/55

    摘要: Highly pure simvastatin can be prepared economically in a high yield using the method comprising the steps of treating lovastatin with potassium hydroxide dissolved in a mixture of water and methanol to obtain a triol acid; relactonizing the triol acid, and protecting the hydroxy group on the lactone ring; and acylating the resulting compound with 2,2-dimethylbutyryl chloride or 2,2-dimethylbutyryl bromide in the presence of an acylation catalyst in an organic solvent, followed by removing the silyl protecting group on the lactone ring to obtain simvastatin.

    摘要翻译: 高纯度辛伐他汀可以以高产率经济地制备,其方法包括以氢氧化钾溶解在水和甲醇的混合物中的洛伐他汀,以获得三醇酸; 使三醇酸相互作用,并保护内酯环上的羟基; 在有机溶剂中,在酰化催化剂存在下,用2,2-二甲基丁酰氯或2,2-二甲基丁酰溴酰化所得化合物,然后除去内酯环上的甲硅烷基保护基,得到辛伐他汀。

    Process for the preparation of simvastatin
    2.
    发明申请
    Process for the preparation of simvastatin 失效
    辛伐他汀的制备方法

    公开(公告)号:US20050080275A1

    公开(公告)日:2005-04-14

    申请号:US10501007

    申请日:2002-12-26

    CPC分类号: C07D309/30 Y02P20/55

    摘要: Highly pure simvastatin can be prepared economically in a high yield using the method comprising the steps of treating lovastatin with potassium hydroxide dissolved in a mixture of water and methanol to obtain a triol acid; relactonizing the triol acid, and protecting the hydroxy group on the lactone ring; and acylating the resulting compound with 2,2-dimethylbutyryl chloride or 2,2-dimethylbutyryl bromide in the presence of an acylation catalyst in an organic solvent, followed by removing the silyl protecting group on the lactone ring to obtain simvastatin.

    摘要翻译: 高纯度辛伐他汀可以以高产率经济地制备,其方法包括以氢氧化钾溶解在水和甲醇的混合物中的洛伐他汀,以获得三醇酸; 使三醇酸相互作用,并保护内酯环上的羟基; 在有机溶剂中,在酰化催化剂存在下,用2,2-二甲基丁酰氯或2,2-二甲基丁酰溴酰化所得化合物,然后除去内酯环上的甲硅烷基保护基,得到辛伐他汀。