Process for the production of an improved form of form 1 ranitidine
    7.
    发明授权
    Process for the production of an improved form of form 1 ranitidine 失效
    生产形式1雷尼替丁的改进方法

    公开(公告)号:US5670671A

    公开(公告)日:1997-09-23

    申请号:US418401

    申请日:1995-04-07

    申请人: Keshava Murthy

    发明人: Keshava Murthy

    IPC分类号: C07D307/52

    CPC分类号: C07D307/52

    摘要: Process for the production of an improved form of Form 1 Ranitidine Hydrochloride having improved filtration and drying characteristics, said process comprising in a substantially anhydrous hydroxylic solvent, comprising at least one alkanol solvent having 3-4 carbon atoms, adding anhydrous hydrogen chloride gas to Ranitidine free base wherein said substantially anhydrous hydroxylic solvent has the characteristics that it solubilizes the Ranitidine free base and hydrogen chloride gas, and subsequently recovering the improved form of Form 1 Ranitidine Hydrochloride.

    摘要翻译: 用于生产具有改进的过滤和干燥特性的1型盐酸雷尼替丁的改进形式的方法,所述方法包括在基本上无水的羟基溶剂中,包含至少一种具有3-4个碳原子的链烷醇溶剂,向雷尼替丁中加入无水氯化氢气体 游离碱,其中所述基本上无水的羟基溶剂具有其溶解雷尼替丁游离碱和氯化氢气体的特性,随后回收形式1的雷尼替丁盐酸盐的改进形式。

    Form of form 1 Ranitidine
    8.
    发明授权
    Form of form 1 Ranitidine 失效
    形式1雷尼替丁

    公开(公告)号:US5523423A

    公开(公告)日:1996-06-04

    申请号:US458253

    申请日:1995-06-02

    IPC分类号: C07D307/52

    CPC分类号: C07D307/52

    摘要: Process for the production of an improved form of Form 1 Ranitidine Hydrochloride having improved filtration and drying characteristics, said process comprising in a substantially anhydrous hydroxylic solvent, comprising at least one alkanol solvent having 3-4 carbon atoms, adding anhydrous hydrogen chloride gas to Ranitidine free base wherein said substantially anhydrous hydroxylic solvent has the characteristics that it solubilizes the Ranitidine free base and hydrogen chloride gas, and subsequently recovering the improved form of Form 1 Ranitidine Hydrochloride.

    摘要翻译: 用于生产具有改进的过滤和干燥特性的1型盐酸雷尼替丁的改进形式的方法,所述方法包括在基本上无水的羟基溶剂中,包含至少一种具有3-4个碳原子的链烷醇溶剂,向雷尼替丁中加入无水氯化氢气体 游离碱,其中所述基本上无水的羟基溶剂具有其溶解雷尼替丁游离碱和氯化氢气体的特性,随后回收形式1的雷尼替丁盐酸盐的改进形式。