METHOD FOR PREPARING RIVAROXABAN INTERMEDIATE
    1.
    发明公开
    METHOD FOR PREPARING RIVAROXABAN INTERMEDIATE 有权
    制备RIVAROXABAN中间体的方法

    公开(公告)号:EP2837628A1

    公开(公告)日:2015-02-18

    申请号:EP13751142.4

    申请日:2013-02-22

    IPC分类号: C07D413/10 C07D413/14

    摘要: Disclosed is a method for preparing a Rivaroxaban intermediate I, comprising the following step: in a non-protonic solvent, under the effect of lewis acid, performing cyclization reaction on 4-(4-phenyl isocyanate)morpholine-3-ketone (II) and ( S )-epoxy compound (III), the reaction temperature ranging from 20° C to 60° C, where R is amino replaced by amino protecting group. The preparation method of the present invention has a mild condition, a simple process, a low cost, and high efficiency; the product is easy to purify and the method is applicable to industrial production.

    摘要翻译: 公开了一种制备利伐沙班中间体I的方法,包括以下步骤:在非质子溶剂中,在路易斯酸的作用下,对4-(4-苯基异氰酸酯)吗啉-3-酮(II)进行环化反应, 和(S) - 环氧化合物(III),反应温度为20℃至60℃,其中R为氨基被氨基保护基取代。 本发明的制备方法条件温和,工艺简单,成本低,效率高; 该产品易于净化,该方法适用于工业生产。