Stereospecific synthesis process for tretinoin compounds
    1.
    发明授权
    Stereospecific synthesis process for tretinoin compounds 有权
    维A酸化合物的立体定向合成方法

    公开(公告)号:US08835680B1

    公开(公告)日:2014-09-16

    申请号:US14117343

    申请日:2012-05-07

    摘要: A stereospecific synthesis process for tretinoin compounds comprises the following steps: using substituted triphenyl phosphine salt and β-formyl crotonic acid as raw material to carry out WITTIG reaction under the action of alkali; then adjusting the pH of the reaction liquid to 5-10; adding palladium compound or rhodium compound to carry out isomerization directly and obtain tretinoin compounds with desired configuration. The product yield of the process is high and the intermediate product in the reaction dose not need to be separated. The process is easy to operate and can save the production cost and as well is suitable for industrial production.

    摘要翻译: 维A酸化合物的立体特异性合成方法包括以下步骤:使用取代的三苯基膦盐和巴豆酮基巴豆酸作为原料,在碱的作用下进行WITTIG反应; 然后将反应液的pH调节至5-10; 加入钯化合物或铑化合物直接进行异构化,得到具有所需结构的维甲酸化合物。 该方法的产物产率高,反应中的中间产物不需要分离。 该工艺易于操作,可节省生产成本,适用于工业生产。

    STEREOSPECIFIC SYNTHESIS PROCESS FOR TRETINOIN COMPOUNDS
    2.
    发明申请
    STEREOSPECIFIC SYNTHESIS PROCESS FOR TRETINOIN COMPOUNDS 有权
    TRETINOIN化合物的立体合成方法

    公开(公告)号:US20140275617A1

    公开(公告)日:2014-09-18

    申请号:US14117343

    申请日:2012-05-07

    IPC分类号: C07C51/00

    摘要: A stereospecific synthesis process for tretinoin compounds comprises the following steps: using substituted triphenyl phosphine salt and β-formyl crotonic acid as raw material to carry out WITTIG reaction under the action of alkali; then adjusting the pH of the reaction liquid to 5-10; adding palladium compound or rhodium compound to carry out isomerization directly and obtain tretinoin compounds with desired configuration. The product yield of the process is high and the intermediate product in the reaction dose not need to be separated. The process is easy to operate and can save the production cost and as well is suitable for industrial production.

    摘要翻译: 维A酸化合物的立体特异性合成方法包括以下步骤:使用取代的三苯基膦盐和巴豆酮基巴豆酸作为原料,在碱的作用下进行WITTIG反应; 然后将反应液的pH调节至5-10; 加入钯化合物或铑化合物直接进行异构化,得到具有所需结构的维甲酸化合物。 该方法的产物产率高,反应中的中间产物不需要分离。 该工艺易于操作,可节省生产成本,适用于工业生产。