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公开(公告)号:US08586729B2
公开(公告)日:2013-11-19
申请号:US12572578
申请日:2009-10-02
申请人: Julian Paul Henschke , Xiaoheng Zhang , Jianbo Yu , Kun Hu , Lijun Mei
发明人: Julian Paul Henschke , Xiaoheng Zhang , Jianbo Yu , Kun Hu , Lijun Mei
摘要: A method for producing a β-enriched protected decitabine comprising: a) coupling a protected 2-deoxy-ribofuranose with a protected 5-azacytosine in the presence of a catalyst to form a reaction mixture comprising the protected decitabine of formula I; and b) quenching the reaction mixture of step a) with a base. The β-enriched protected decitabine so made may be deprotected to produce a decitabine product in a high yield and purity.
摘要翻译: 一种制备富含β-的受保护的地西他滨的方法,包括:a)在催化剂存在下将受保护的2-脱氧 - 呋喃核糖与受保护的5-氮杂胞嘧啶偶联,形成包含式I的受保护的地西他滨的反应混合物; 和b)将碱的步骤a)的反应混合物淬灭。 如此制备的β-富集的保护的地西他滨可以去保护以产生高产率和纯度的地西他滨产品。
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公开(公告)号:US20100087637A1
公开(公告)日:2010-04-08
申请号:US12572578
申请日:2009-10-02
申请人: Julian Paul Henschke , Xiaoheng Zhang , Jianbo Yu , Kun Hu , Lijun Mei
发明人: Julian Paul Henschke , Xiaoheng Zhang , Jianbo Yu , Kun Hu , Lijun Mei
IPC分类号: C07H19/12
摘要: A method for producing a β-enriched protected decitabine comprising: a) coupling a protected 2-deoxy-ribofuranose with a protected 5-azacytosine in the presence of a catalyst to form a reaction mixture comprising the protected decitabine of formula I; and b) quenching the reaction mixture of step a) with a base. The β-enriched protected decitabine so made may be deprotected to produce a decitabine product in a high yield and purity.
摘要翻译: 一种生产富集的受保护的地西他滨的方法,包括:a)在催化剂存在下将受保护的2-脱氧 - 呋喃核糖与受保护的5-氮杂胞嘧啶偶联,形成包含式I的受保护的地西他滨的反应混合物; 和b)将碱的步骤a)的反应混合物淬灭。 如此制备的富含生物保护的地西他滨可以去保护以产生高产率和纯度的地西他滨产品。
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公开(公告)号:US07029788B2
公开(公告)日:2006-04-18
申请号:US10226226
申请日:2002-08-23
申请人: Jianbo Yu , Ping Zhang , Jiangfeng Wu , Xuefeng Gao
发明人: Jianbo Yu , Ping Zhang , Jiangfeng Wu , Xuefeng Gao
CPC分类号: H01M2/105 , H01M6/42 , H01M10/30 , H01M10/345
摘要: A 9V rechargeable battery comprising a plurality of column cells connected in series and enclosed by a container and a cover with a negative terminal and a positive terminal. Said container (1) further comprises a pair of lateral sidewalls formed with openings and another pair of lateral sidewalls formed with recesses so as to receive said cells snugly.
摘要翻译: 一种9V可再充电电池,包括串联连接并由容器封闭的多个柱单元和具有负端子和正端子的盖。 所述容器(1)还包括形成有开口的一对横向侧壁和形成有凹部的另一对横向侧壁,以便紧贴地容纳所述单元。
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