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公开(公告)号:US20040092735A1
公开(公告)日:2004-05-13
申请号:US10310068
申请日:2002-12-05
发明人: Pandurang Balwant Deshpande , Pramod Narayan Deshpande , Bhausaheb Pandharinath Khadangale , Gautam Kumar Das , John Muthiah Raja Jeyakumar
IPC分类号: C07D501/14
CPC分类号: C07D501/00
摘要: The present invention relates to an improved process for the preparation of the sterile cefuroxime sodium of formula (I). 1
摘要翻译: 本发明涉及制备式(I)的无菌头孢呋辛钠的改进方法。
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公开(公告)号:US20040077849A1
公开(公告)日:2004-04-22
申请号:US10309692
申请日:2002-12-05
发明人: Pramod Narayan Deshpande , Gautam Kumar Das , Rajendra Janardan Sarangdhar , Peter Xavier Tharial
IPC分类号: C07D501/14
CPC分类号: C07D501/00
摘要: The present invention relates to an improved process for the preparation of cefadroxil of the formula (I), more particularly, the present invention relates to an improved process for the preparation of cefadroxil having water content in the range of 4-5%. 1
摘要翻译: 本发明涉及一种制备式(I)头孢羟氨苄的改进方法,更具体地说,本发明涉及一种制备水含量在4-5%范围内的头孢羟氨苄的改进方法。
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公开(公告)号:US20030135041A1
公开(公告)日:2003-07-17
申请号:US10035178
申请日:2002-01-04
发明人: Pramod Narayan Deshpande , Bhausaheb Pandharinath Khadangale , Surulichamy Senthil Kumar , Gautam Kumar Das
IPC分类号: C07D501/14
CPC分类号: C07D501/00
摘要: The present invention provides an improved process for the preparation of 7-amino-3-null2-(furylcarbonyl)thiomethylnull-3-cephem-4-carboxylic acid represented by formula (I) 1 by the condensation of 7-amino cephalosporanic acid (7-ACA) represented by formula (II) with furyl-2-carbonylthiol represented by formula (III) using borontrifluoride as condensing agent in an organic solvent at a temperature range of 20null-50nullC.
摘要翻译: 本发明提供了一种改进的制备由式(I)表示的7-氨基-3- [2-(呋喃基)硫代甲基] -3-头孢烯-4-羧酸的方法,其通过7-氨基头孢烷酸 7-ACA)与式(III)表示的呋喃-2-基羰基硫醇在有机溶剂中,使用三氟化硼作为缩合剂,在20°-50℃的温度范围内。
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