| Patents for C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574) |
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| 08/04/2010 | CN101792455A Preparation method of high-purity 7-alpha-amino-7-methoxy-3-methyltetrazole thiomethyl cephalosporin benzyl ester |
| 08/04/2010 | CN101792454A Preparation method of 7-alpha amino 7-methoxyl-3-methly tetrazole sulfur methyl cafe-benzyl alkanoic acid |
| 08/04/2010 | CN101792453A Method for preparing 7-amino-3-sulfotetrazolthiomethylcephalosporanic acid |
| 07/29/2010 | WO2010083725A1 Cephalosporin derivatives containing substituted nitrogen-containing fused heterocyclic ring |
| 07/28/2010 | CN101787040A Method for preparing cefmetazole sodium |
| 07/28/2010 | CN101787039A High-purified cefmetazole sodium compound |
| 07/28/2010 | CN101787038A Preparation method of cefquinome sulfate |
| 07/28/2010 | CN101787037A High-purified cefotiam hydrochloride compound |
| 07/28/2010 | CN101787036A High-purified cefamandole sodium compound |
| 07/28/2010 | CN101787035A Preparation method of 7-aminocephalo-5-mercapto-1-methyltetrazole |
| 07/28/2010 | CN101279979B Separation and purification method of cefamandole nafate and preparation of cefathiamidine freeze-dried injectable powder |
| 07/22/2010 | WO2010082108A1 Improved process for preparation of key intermediate of cephalosporins |
| 07/21/2010 | CN101781320A Cephalosporin derivative containing pyridinium ions |
| 07/21/2010 | CN101781319A Cephalosporin derivative containing substitutive triazole |
| 07/21/2010 | CN101781318A Cephalosporin nucleus derivative compound, cephaene onium salt compound prepared from same, and method for preparing cefpiramide sulfate from cephalosporin nucleus derivative compound and cephaene onium salt compound |
| 07/21/2010 | CN101781317A Method for preparing cephapirin benzathine |
| 07/21/2010 | CN101781316A Ceftizoxime sodium crystalline hydrate and preparation method and application thereof |
| 07/20/2010 | US7759483 Cephalosporins; bactericides; microbiocides |
| 07/14/2010 | CN101239985B Method for preparing cefodizime sodium |
| 07/08/2010 | WO2010075765A1 Cefdinir acid double salt and its preparation |
| 07/07/2010 | CN101772509A Process for the silylation of beta-lactam compounds |
| 07/07/2010 | CN101772505A compositions comprising beta lactam compounds |
| 07/07/2010 | CN101768171A Cefpodoxime proxetil compound of new route |
| 07/07/2010 | CN101768170A Cefathiamidine hydrate, preparation method thereof and application thereof |
| 07/07/2010 | CN101768169A Mother liquid recovery process for 7-aminocephalosporanic acid production |
| 07/07/2010 | CN101768168A Method for synthesizing cephalosporin intermediate |
| 07/07/2010 | CN101245079B Cephalosporin antibiotic derivant |
| 07/06/2010 | US7750148 chemical intermediates for making an oral antibiotics Sulbactam |
| 07/01/2010 | WO2010072672A1 New crystal polymorphs of ceftobiprole |
| 06/30/2010 | CN101759710A Cephalosporin derivatives containing substitutional nitrogen heterocycle |
| 06/30/2010 | CN101759709A Refining process of 7-ACP.HCL |
| 06/30/2010 | CN101759708A Cefodizime sodium crystal form and preparation method thereof as well as drug compound comprising crystal form |
| 06/30/2010 | CN101544661B Cefobutazine sodium compound and pharmaceutical composition made therefrom |
| 06/30/2010 | CN101200473B Method for preparing cefepime dihydrochloride monohydrate crystal |
| 06/23/2010 | CN101747349A Method for synthesizing cefpirome sulfate |
| 06/23/2010 | CN101747348A Cefoselis sulfate crystal and preparation method thereof |
| 06/23/2010 | CN101747347A Low crystal-water ceftriaxone crystals and preparation method thereof |
| 06/23/2010 | CN101747346A Method for synthesizing coarse salt of ceftriaxone sodium by phase transfer catalysis method |
| 06/23/2010 | CN101747345A Amorphous cefodizime sodium and preparation method thereof and pharmaceutical composition comprising same |
| 06/23/2010 | CN101747344A Synthesis Method of cefcapene pivoxil hydrochloride |
| 06/23/2010 | CN101134759B Method for purifying cephamycine C |
| 06/22/2010 | US7741478 a solution of 7-amino-3-vinyl-3-cephem-4-carboxylic acid is added to 2-mercaptobenzothiazolyl (Z)-(2-aminothiazol-4-yl)-2-(trityloxyimino)acetate forming cefdinir, reacting cefdinier with N,N'-Dicyclohexylethylenediamine in isopropyl alcohol to form N,N'-Dicyclohexylethylenediamine salt of cefdinier |
| 06/16/2010 | CN1915997B New process for the preparation of vinyl-pyrrolidinone cephalosporine derivatives |
| 06/16/2010 | CN101736070A Process for production of 3-alkenylcephem compounds |
| 06/16/2010 | CN101735251A Method for synthesizing cefepime hydrochloride |
| 06/16/2010 | CN101735250A Ceftezole sodium compound with novel route |
| 06/16/2010 | CN101735249A Process for preparing instantly-dissolving cefmenoxime hydrochloride |
| 06/16/2010 | CN101735248A Process for producing 3-alkenylcephem compounds |
| 06/16/2010 | CN101735247A Process for drying 7-aminocephalosporanic acid |
| 06/16/2010 | CN101735246A Method for preparing cephalosporin intermediate 7-ADCA |
| 06/16/2010 | CN101735245A Method for preparing cefozopran hydrochloride and intermediate thereof |
| 06/09/2010 | EP1268488B1 A process for preparing cephalosporin derivatives using new thiazole compound |
| 06/09/2010 | CN1751051B Cephalosporin in crystalline form |
| 06/09/2010 | CN101723959A Method for refining cefbuperazone |
| 06/09/2010 | CN101723958A Cefodizime sodium medicament and preparation method thereof |
| 06/09/2010 | CN101279980B Separation and purification method of cefminox sodium and preparation of cefminox sodium freeze-dried powder injection |
| 06/08/2010 | CA2519272C Cephalosporin in crystalline form |
| 06/02/2010 | CN201493110U Ceclor acylation kettle |
| 06/02/2010 | CN1795197B Cephem compound |
| 06/02/2010 | CN101245077B Novel cephalosporin derivatives |
| 06/02/2010 | CN101210022B Cephalosporin |
| 06/02/2010 | CN101190922B Cephalosporin derivative |
| 06/02/2010 | CN101153045B Novel cephalosporin compounds |
| 06/01/2010 | US7728127 Cross-linked glycopeptide-cephalosporin antibiotics |
| 06/01/2010 | US7728126 halogenation; cephalosporins |
| 06/01/2010 | CA2424501C New crystalline form of cefdinir |
| 05/26/2010 | CN101712688A Hybrid QA molecules wherein Q is an aminoquinoline and A is an antibiotic residue, their synthesis and their uses as antibacterial agent |
| 05/26/2010 | CN101712687A Method for preparing intermediate of cefetamet pivoxil hydrochloride |
| 05/26/2010 | CN101245078B Benzathine salt of ceftiofur, preparation method and application thereof |
| 05/26/2010 | CN101085781B Method for preparing cefonicid or its medicinal salt and intermediate |
| 05/26/2010 | CN101058584B Method of preparing cefprozil parent nucleus 7-amino-3-propenylcephalosporanic acid |
| 05/26/2010 | CN101041664B Preparation of cefepime halogen acid salt by calcium salt precipitation process |
| 05/26/2010 | CN101016305B Method of synthesizing cefixime |
| 05/19/2010 | CN101190921B Method for preparing p-nitrobenzyl-7-phenoxyacetamido-3-exomethylenecepham-4-carboxylate-1-beta-oxide |
| 05/19/2010 | CN101143872B 3-halogen substituted cephalosporin derivative |
| 05/12/2010 | CN1679595B Phosphonocephem derivatives, their production and use |
| 05/12/2010 | CN101704827A Novel route for cefathiamidine compounds |
| 05/12/2010 | CN101134760B Method for removing coloring matter in powder form cephamycine C |
| 05/12/2010 | CN101074235B Cephalo-sulfide alcohol hydro-compound and its production method |
| 05/11/2010 | US7713931 Cross-linked glycopeptide-cephalosporin antibiotics |
| 05/06/2010 | WO2010050468A1 Cephalosporin having catechol group |
| 05/06/2010 | US20100113768 Process for preparing cefsulodin sodium |
| 05/06/2010 | CA2736953A1 Cepharosporins having a catechol group |
| 04/28/2010 | CN101698669A Synthesis method of 7-phenoxyacetamido-3-vinyl-4-para-methoxyphenyl cephalosporin |
| 04/27/2010 | US7705142 Reacting 7-amino-3-vinyl-3-cephem-4-carboxylic acid with 2-mercapto-1,3-benzothiazolyl-(Z)-2-(2-aminothiazol-4-yl)-2-(alkoxycarbonyl)-methoxyimino acetate and an amine base to form an amine salt of a cefixime ester, extracting with ethyl acetate or CH2Cl2, hydrolyzing, acidifying, and crystallizing |
| 04/27/2010 | CA2433067C An improved method for preparation of cefuroxime axetil |
| 04/21/2010 | EP2176270A1 Compositions comprising beta lactam compounds |
| 04/21/2010 | CN101696215A Cefazolin sodium pentahydrate compound of new route |
| 04/21/2010 | CN101696214A Cefminox sodium compound of new route |
| 04/21/2010 | CN101696213A Synthetic method of 7-MAC intermediate |
| 04/20/2010 | US7700581 3-((1,2,5,6-tetrahydro-2-methyl-5,6-d ioxo-1,2,4-triazine-3-yl)thio)methyl)-7-[[[[[(1-methyl ethyl)amino][(1-methylethyl)imino]methyl]thio]acetyl]amino]-8-oxo-5-thia-1-aza-bicyclo [4.2.0]oct-2-ene-2-carboxylic acid; bioavailibility; stability; pharmacokinetics; antibiotics; infections |
| 04/15/2010 | WO2010020871A3 Crystalline sodium salt of cephalosporin antibiotic |
| 04/13/2010 | US7696354 antibacterial activities against cephem-resistant Pseudomonas aeruginosa which produce beta -lactamase; antibiotic resistance; pharmacokinetics; high water solubility; a halogen atom or the like into an aminothiazole ring on the 7-side chain, a carboxyl group into the end of the oxime group |
| 04/07/2010 | EP2170909A1 Process for the silylation of beta-lactam compounds |
| 04/07/2010 | EP1663245B1 Cephem compounds |
| 03/30/2010 | CA2583727C New process for the preparation of vinyl-pyrrolidinone cephalosporine derivatives |
| 03/18/2010 | WO2010030858A1 4'-allene-substituted nucleoside derivatives |
| 03/17/2010 | CN101671351A Carbon 2-bit substituted cephalosporin derivative as well as synthetic method and application thereof |
| 03/17/2010 | CN101671350A Cefpiramide sodium compound of new way |
| 03/17/2010 | CN101671349A New method for preparing cefuroxime sodium compound |