PROCESS FOR THE PURIFICATION OF GABAPENTIN
    1.
    发明申请
    PROCESS FOR THE PURIFICATION OF GABAPENTIN 有权
    加巴酚丁的纯化方法

    公开(公告)号:US20090292138A1

    公开(公告)日:2009-11-26

    申请号:US11722056

    申请日:2005-12-15

    IPC分类号: C07C227/16

    摘要: The present invention relates to a process for the purification of gabapentin. The process relates to the addition of hydrochloric acid to an aqueous solution or suspension of gabapentin, before, during or after the concentration step of that solution, and the subsequent slurry of the gabapentin by the addition of an alcoholic solvent. The so obtained gabapentin has an high purity degree and, in particular, is characterized by a low content of lactam.

    摘要翻译: 本发明涉及一种纯化加巴喷丁的方法。 该方法涉及在该溶液的浓缩步骤之前,之中或之后向加巴喷丁的水溶液或悬浮液中加入盐酸,以及通过加入醇溶剂加入加巴喷丁的后续浆液。 如此获得的加巴喷丁具有高纯度,特别是其内酰胺含量低。

    Process for the purification of gabapentin
    5.
    发明授权
    Process for the purification of gabapentin 失效
    加巴喷丁的纯化方法

    公开(公告)号:US07393975B2

    公开(公告)日:2008-07-01

    申请号:US10561018

    申请日:2004-06-17

    IPC分类号: C07C61/08

    摘要: A process for the preparation of gabapentin which comprises the passage of a gabapentin inorganic salt through a strong cationic ionic exchange resin, the elution of gabapentin fixed on the column, the concentration of the resultant solution and the cristallization from organic solvent, characterized in that the elution of gabapentin fixed on the column is carried out by using an ammonia and alkaline hydroxide aqueous solution, is described.

    摘要翻译: 一种制备加巴喷丁的方法,其包括通过强阳离子离子交换树脂使加巴喷丁无机盐通过,固定在柱上的加巴喷丁的洗脱,所得溶液的浓度和有机溶剂的分解,其特征在于, 使用氨和碱性氢氧化物水溶液进行固定在柱上的加巴喷丁的洗脱。

    Process for the purification of gabapentin
    8.
    发明申请
    Process for the purification of gabapentin 失效
    加巴喷丁的纯化方法

    公开(公告)号:US20070129569A1

    公开(公告)日:2007-06-07

    申请号:US10561018

    申请日:2004-06-17

    IPC分类号: C07C229/14

    摘要: A process for the preparation of gabapentin which comprises the passage of a gabapentin inorganic salt through a strong cationic ionic exchange resin, the elution of gabapentin fixed on the column, the concentration of the resultant solution and the cristallization from organic solvent, characterized in that the elution of gabapentin fixed on the column is carried out by using an ammonia and alkaline hydroxide aqueous solution, is described.

    摘要翻译: 一种制备加巴喷丁的方法,其包括通过强阳离子离子交换树脂使加巴喷丁无机盐通过,固定在柱上的加巴喷丁的洗脱,所得溶液的浓度和有机溶剂的分解,其特征在于, 使用氨和碱性氢氧化物水溶液进行固定在柱上的加巴喷丁的洗脱。