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公开(公告)号：US20050059821A1
公开(公告)日：2005-03-17
申请号：US10830806
申请日：2004-04-21
Applicant: Debashish Datta , Muralikrishna Dantu , Pollepeddi Narayana Sharma , Brijkishore Mishra
IPC: C07D501/00 , C07D501/14
CPC classification number: C07D501/00
Abstract: An improved process for preparation of ceftriaxone sodium of formula (II), is disclosed.
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公开(公告)号：US20050059820A1
公开(公告)日：2005-03-17
申请号：US10671298
申请日：2003-09-25
Applicant: Debashish Datta , Muralikrishna Dantu , Pollepeddi Sharma , Brijkishore Mishra
Inventor： Debashish Datta , Muralikrishna Dantu , Pollepeddi Sharma , Brijkishore Mishra
IPC: C07D501/00 , C07D501/14
CPC classification number: C07D501/00
Abstract: An improved process for preparation of ceftriaxone sodium of formula (II), is disclosed.
Abstract translation: 公开了制备式（II）头孢曲松钠的改进方法。
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公开(公告)号：US5856502A
公开(公告)日：1999-01-05
申请号：US995074
申请日：1997-12-19
Applicant: Debashish Datta , Vinod George , Bishwa Prakash Rai
Inventor： Debashish Datta , Vinod George , Bishwa Prakash Rai
IPC: C07D257/04 , C07D277/20 , C07D501/00 , C07D501/34 , C07D501/36 , C07D277/587
CPC classification number: C07D257/04 , C07D277/587 , C07D501/00
Abstract: This invention relates to reactive derivatives of 2-(2-aminothiazol-4-yl)-2-methoxyimino acetic acid and 1H-tetrazol-1-acetic acid of the following general formula I, ##STR1## wherein ##STR2## as well as to use thereof in the manufacture of cephalosporin antibiotics such as cefotaxime, ceftriaxone and cefazolin.
Abstract translation: 本发明涉及以下通式I的2-（2-氨基噻唑-4-基）-2-甲氧基亚氨基乙酸和1H-四唑-1-乙酸的反应性衍生物，其中
以及其在制造头孢菌素抗生素如头孢噻肟，头孢曲松和头孢唑啉中的用途。 -
34.发明授权Dimethyl formiminium chloride chlorosulphate derivatives useful as intermediates for producing cephalosporins 失效氯化二甲基氯化亚锡盐酸盐衍生物可用作生产头孢菌素的中间体
公开(公告)号：US5739346A
公开(公告)日：1998-04-14
申请号：US624737
申请日：1996-03-26
Applicant: Debashish Datta , Vinod George , Bishwa Prakash Rai
Inventor： Debashish Datta , Vinod George , Bishwa Prakash Rai
IPC: C07D257/04 , C07D277/20 , C07D501/00 , C07D501/34 , C07D501/36 , C07D277/587
CPC classification number: C07D257/04 , C07D277/587 , C07D501/00
Abstract: This invention relates to reactive derivatives of 2-(2-aminothiazol-4-yl)-2-methoxyimino acetic acid and 1H-tetrazol-1-acetic acid of the following general formula I, ##STR1## wherein R.sub.3 = ##STR2## as well as to use thereof in the manufacture of cephalosporin antibiotics such as cefotaxime, ceftriaxone and cefazolin.
Abstract translation: 本发明涉及以下通式I的2-（2-氨基噻唑-4-基）-2-甲氧基亚氨基乙酸和1H-四唑-1-乙酸的反应性衍生物，其中R3 = 的头孢菌素类抗生素如头孢噻肟，头孢曲松和头孢唑啉。
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