发明名称 |
METHOD FOR PREPARING RIVAROXABAN INTERMEDIATE |
摘要 |
<p>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.</p> |
申请公布号 |
EP2837628(A1) |
申请公布日期 |
2015.02.18 |
申请号 |
EP20130751142 |
申请日期 |
2013.02.22 |
申请人 |
CHINA NATIONAL MEDICINES GUORUI PHARMACEUTICAL CO., LTD.;SHANGHAI INSTITUTE OF PHARMACEUTICAL INDUSTRY |
发明人 |
ZHANG, FULI;LIANG, BIN;YANG, CHUNBO;LIU, CHONGHAO;GAO, YANG;WANG, JIAN;JIANG, MIN |
分类号 |
C07D413/10;C07D413/14 |
主分类号 |
C07D413/10 |
代理机构 |
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代理人 |
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地址 |
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