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1.Process for preparing 4-alkyl- or 4-aryl-oxycarbonyl paclitaxel analogs and novel intermediates 失效
标题翻译: 制备4-烷基 - 或4-芳基 - 氧羰基紫杉醇类似物和新型中间体的方法公开(公告)号:US20050054863A1
公开(公告)日:2005-03-10
申请号:US10909899
申请日:2004-08-02
申请人: Frank Gibson , Joydeep Kant , Rajendra Deshpande , Karen TenHuisen , Jing Liang , Jun Li , Susan Boettger , Edward Gublo , Ulhas Dhokte
发明人: Frank Gibson , Joydeep Kant , Rajendra Deshpande , Karen TenHuisen , Jing Liang , Jun Li , Susan Boettger , Edward Gublo , Ulhas Dhokte
IPC分类号: C07D305/14 , C07D35/14
CPC分类号: C07D305/14 , Y02P20/55
摘要: A process is provided for preparing 4-alkyl- or 4-aryl-oxycarbonyl paclitaxel analogs which includes the steps of converting paclitaxel into a C-7 acylprotected paclitaxel employing an electrophilic protecting group, such as benzoyloxycarbonyl, and converting the C-7 protected analog into the 4-alkyloxycarbonyl or 4-aryloxycarbonyl paclitaxel analog. Novel intermediates produced in the process are also provided.
摘要翻译: 提供一种制备4-烷基 - 或4-芳基 - 氧羰基紫杉醇类似物的方法,其包括使用亲电保护基如苯甲酰氧基羰基将紫杉醇转化为C-7酰基保护的紫杉醇的步骤,并将C-7保护的类似物 进入4-烷氧基羰基或4-芳氧基羰基紫杉醇类似物。 还提供了在该方法中生产的新型中间体。
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2.Process for the preparation of entecavir and novel intermediates thereof via carbon-silicon oxidation 有权
标题翻译: 通过碳 - 硅氧化制备恩替卡韦及其新型中间体的方法公开(公告)号:US20050272932A1
公开(公告)日:2005-12-08
申请号:US11143268
申请日:2005-06-02
申请人: Maotang Zhou , Emily Reiff , Purushotham Vemishetti , Yadagiri Pendri , Ambarish Singh , Siva Prasad , Ulhas Dhokte , Xinhua Qian , Pia Mountford , Kerry Hartung , Helen Sailes
发明人: Maotang Zhou , Emily Reiff , Purushotham Vemishetti , Yadagiri Pendri , Ambarish Singh , Siva Prasad , Ulhas Dhokte , Xinhua Qian , Pia Mountford , Kerry Hartung , Helen Sailes
IPC分类号: C07C41/16 , C07C41/26 , C07C43/178 , C07C43/215 , C07C43/23 , C07D473/10 , C07D473/18 , C07F7/04 , C07F7/08 , C07F7/18
CPC分类号: C07C41/16 , C07C41/26 , C07C2601/10 , C07D473/18 , C07F7/0838 , C07F7/1892 , C07C43/23 , C07C43/215
摘要: Processes for preparing entecavir and novel intermediates thereof using carbon-silicon oxidation.
摘要翻译: 使用碳 - 硅氧化制备恩替卡韦及其新型中间体的方法。
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