发明名称 |
PROCESO DE PREPARACION DEL BETA-ANOMERO ENRIQUECIDO DE CLORHIDRATO DE GEMCITABINA; COMPUESTO INTERMEDIARIO INVOLUCRADO EN DICHO PROCESO; Y SU PROCESO DE PREPARACION. |
摘要 |
<p>The present invention provides a highly stereoselective, simple and economical glycosylation process for preparation of beta-anomer enriched 2<SUP>1</SUP>-deoxy-2<SUP>1</SUP>,2<SUP>1</SUP>-D-ribofuranosyl difluoronucleosides of formula (II), and physiologically acceptable salts thereof, in particular, the beta-enriched anomer of gemcitabine hydrochloride of formula (IIb) in purity of >99% is provided through utilization of a novel trichloroacetimidate of formula (I).</p> |
申请公布号 |
CL2005003456(A1) |
申请公布日期 |
2008.05.02 |
申请号 |
CL20050003456 |
申请日期 |
2005.12.28 |
申请人 |
DABUR PHARMA LIMITED |
发明人 |
MAIKAP GOLAK CHANDRA, BHATT DEEPENDRA, PANDA BIJAN KUMAR |
分类号 |
A61K31/34;A61K31/7068;C07D307/20;C07H19/073 |
主分类号 |
A61K31/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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