| 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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| 07/22/2009 | CN100516070C Method for preparing 7-amido-3-vinyl cethalosporanic acid |
| 07/15/2009 | CN101481383A Cefdinir acid type double salt compound and preparation |
| 07/14/2009 | US7560545 purification by salt formation, reacting with alumina or aluminium trichloride, cause the tautomer to precipitate, filtration, separation |
| 07/08/2009 | CN101475580A Cefamandole nafate compounds and synthesizing method thereof |
| 07/08/2009 | CN101475579A Stable cefuroxime sodium and preparation thereof |
| 06/30/2009 | US7553962 Cross-linked glycopeptide-cephalosporin antibiotics |
| 06/24/2009 | CN101463040A Preparation of cefazolin sodium sterilized raw medicine |
| 06/24/2009 | CN101463039A Preparation of 3-hydroxymethyl cethalosporanic acid and novel process for synthesizing 7 beta-amino-3-non-cephem-4-carboxylic acid using the intermediate |
| 06/24/2009 | CN100503616C Preparation process of 7-phenylacetamino-3-pyridyl methyl-cephalosporin-4-p-methoxybenzyl carboxylate |
| 06/17/2009 | CN101456871A Cephalosporin derivative containing mercaptothiazole |
| 06/17/2009 | CN101456870A Novel process for synthesizing cefpirome sulfate |
| 06/17/2009 | CN100500671C Synthesis process of cefpirome sulfate as antibiotic |
| 06/10/2009 | EP1273587B1 Process for the preparation of a 3-vinylcephem compound |
| 06/09/2009 | US7544797 Stereospecifically preparing a 3-(Z)-propenyl cephem derivative in high yield and purity using a novel reactive intermediate, i.e., a 4-hydroxyphenylglycine derivative, and using a mixed solvent including methylene chloride, isopropyl alcohol, and water in a predetermined ratio |
| 06/03/2009 | CN101448842A Process for the crystallisation of cefadroxil |
| 05/21/2009 | US20090131655 Cephem Compounds Having Broad Antibacterial Spectrum |
| 05/21/2009 | US20090131394 Broad spectrum beta-lactamase inhibitors |
| 05/20/2009 | EP1310502B1 Phosphonocephem compound |
| 05/20/2009 | CN101434611A Nitrogen heterocyclic ring substituted antibiotic, and preparation method and use thereof |
| 05/13/2009 | CN101429208A Synthesis method for 7-neophedan-3-chloromethyl cephalosporanic p-methoxy benzyl ester |
| 05/13/2009 | CN101429207A Process for producing 7-amino-3-[(1-methyl pyrrolidine) methyl]-3- cephalosporin-4-carboxylic dihydrochloride |
| 05/12/2009 | US7531650 Cephalosporin salts in crystalline form |
| 05/06/2009 | CN101423523A Method for preparing sodium 7-methoxy-7-chloracetylamino-3-methyltetrazole sulfidomethyl cephalosporanic acid |
| 04/29/2009 | EP1043327B1 Phosphonocephem derivatives, process for the preparation of the same, and use thereof |
| 04/29/2009 | CN101418331A Process for producing 7-methoxy-3-desacetylcefalotin |
| 04/29/2009 | CN101418016A Phosphorylation cephalosporin derivates |
| 04/29/2009 | CN101418015A Ceftriaxone phosphorylation derivates |
| 04/22/2009 | CN100480251C Method for synthesizing compound of cefpiramide sodium |
| 04/16/2009 | CA2702257A1 Broad spectrum beta-lactamase inhibitors |
| 04/15/2009 | EP2046783A2 Imidazol-pyrimidine derivatives for treatment of diseases related to glycogen synthase kinase (gsk3) |
| 04/15/2009 | CN201220165Y Ceftriaxone sodium reaction tank |
| 04/15/2009 | CN101407525A Cephalosporin derivatives |
| 04/14/2009 | CA2269682C Improved pharmaceutical compositions |
| 04/09/2009 | US20090093032 Process for producing 7-methoxy-3-desacetylcefalotin |
| 04/08/2009 | CN100475821C Preparation of sodium cefetamet by spray drying method |
| 04/01/2009 | CN101397304A Method for preparing high-purity cefpirome sulfate by sodium salt precipitation method |
| 03/31/2009 | US7511154 For producing (1'benzyl-2-oxo-[1,3']-(R)-bipyrrolidinyl-3-(R,S)-yl)-triphenyl-phosphonium bromide which is an intermediate for antibacterial vinylpyrrolidinone-cephalosporin derivatives, starting with N-benzyl-3-pyrrolidinamine |
| 03/31/2009 | US7511135 Reacting2-(2-aminothiazol-4-yl)-2-methyloxyiminoacetic acid-2-benzothiazolyl thioester; then with sodium 2-ethylhexanoic; purity; stability |
| 03/26/2009 | US20090082325 Cefidinir Oral Suspension |
| 03/24/2009 | US7507813 Amorphous cefuroxime axetil and preparation process therefore |
| 03/24/2009 | US7507812 Process for producing 3-chloromethyl-3-cephem derivatives |
| 03/19/2009 | US20090075967 Deuterium-enriched ceftriaxone |
| 03/18/2009 | CN101389635A Improved cephalosporin production |
| 03/04/2009 | EP2030975A1 CEFDINIR synthesis process |
| 02/24/2009 | CA2334568C Derivatives of 3-(2-oxo-[1,3']bipyrrolidinyl-3-ylidenemethyl)-cephems |
| 02/24/2009 | CA2224438C Vinyl-pyrrolidinone cephalosporins with basic substituents |
| 02/19/2009 | WO2008155615A3 An improved process for the preparation of cephalosporin antibiotic |
| 02/19/2009 | US20090047692 Optically-detectable enzyme substrates and their method of use |
| 02/18/2009 | EP2024374A1 Process for the crystallisation of cefadroxil |
| 02/18/2009 | EP1828206B1 Process for the preparation of cefixime |
| 02/18/2009 | CN101367737A Method for recycling N,N-dimethylaniline from waste liquor of 7-amino-cephalosporin alkyl acid production |
| 02/11/2009 | CN101362770A Cefpirome sulfate preparation technology |
| 02/11/2009 | CN101362769A Synthetic method of cefdinir |
| 02/11/2009 | CN101362733A Method for preparing cefixime side chain active ester |
| 02/11/2009 | CN101362732A Method for preparing cefixime side chain compound |
| 02/10/2009 | US7488724 7-alkylidene-3-substituted-3-cephem-4-carboxylates as beta-lactamase inhibitors |
| 02/10/2009 | CA2427199C Process for the production of ceftiofur sodium salt |
| 02/05/2009 | WO2009016171A1 Compositions comprising beta lactam compounds |
| 02/05/2009 | WO2009016170A1 Process for the silylation of beta-lactam compounds |
| 02/05/2009 | US20090036672 Intermediate cefdinir salts |
| 02/04/2009 | EP2020416A1 Phosphonocephem compound |
| 02/04/2009 | CN101357929A Cephalosporin derivative containing sulfhydryl thiadiazole |
| 02/04/2009 | CN101357928A Novel technique for synthesizing cefoselis sulfate |
| 02/04/2009 | CN101357927A 7-amino-3-non-3-cephalosporin-4-carbosylic acid preparation method |
| 02/04/2009 | CN100457759C Cefepime halogen acid salt preparation method |
| 02/03/2009 | US7485632 Cephalosporins |
| 01/27/2009 | CA2408941C New process for the preparation of vinyl-pyrrolidinone cephalosporine derivatives |
| 01/21/2009 | CN101348494A High-purity cefmenoxime hydrochloride and preparation thereof |
| 01/21/2009 | CN101348493A High-purity medicament and preparation thereof |
| 01/21/2009 | CN101348492A High-purity ceftizoxime sodium and preparation thereof |
| 01/21/2009 | CN100453545C Method of synthesizing cefepime intermediate in mixed solvent |
| 01/20/2009 | US7479556 Process for producing Cefepime and cephalosporin analogues |
| 01/14/2009 | EP2013219A1 Crystalline modification of cefuroximaxetil |
| 01/14/2009 | EP0986565B1 Improved precipitation process of 7-aminocephalosporanic acid (7-aca) |
| 01/14/2009 | CN101343282A Cephalosporin derivatives containing condensed nucleus |
| 01/14/2009 | CN101343281A Novel amidino based pyridinyl cephalosporins compound |
| 01/08/2009 | WO2009004463A1 Improved process for the preparation of cefepime intermediate |
| 01/08/2009 | US20090012054 Cephem Compounds and Use as Antimicrobial Agents |
| 01/07/2009 | CN101337971A Method for synthesizing antibiotic cefepime hydrochloride |
| 01/07/2009 | CN101337970A Method for synthesizing antibiotic cefpirome sulfate |
| 01/07/2009 | CN101337969A Synthetic method of antibiotic cefixime |
| 01/07/2009 | CN100448879C Method for preparing unformed cefuroxime axetil |
| 12/31/2008 | CN101333224A Method for preparing high-purity 4-Methoxybenzyl 3-chloromethyl-7-(2-phenylacetamido)-3-cephem--carboxylate powder |
| 12/30/2008 | US7470786 Method for manufacture of ceftriaxone sodium |
| 12/24/2008 | WO2008155615A2 An improved process for the preparation of cephalosporin antibiotic |
| 12/17/2008 | CN101323623A Novel fourth generation cephalosporin, preparation and use thereof |
| 12/11/2008 | US20080306256 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 |
| 12/03/2008 | EP1996595A2 PROCESS FOR THE PREPARATION OF (1-OXA- OR l-THIA-)3- CEPHEM DERIVATIVES AND RELATED INTERMEDIATES |
| 12/03/2008 | CN101314605A Method for extracting cefaclor from cefaclor naphthalenol complexes |
| 12/02/2008 | US7459551 Method for preparing cyclic compounds |
| 12/02/2008 | US7459550 Reacting -Methoxybenzyl 7-phenylacetamido-3-chloromethy-3-cephem-4-carboxylate with triphenylphosphine, reacting with 4-methyl-5-formyl-thiazole; deesterification; salt formation; enzymatic hydroxlysis; reacting with 2-(2-aminothiazol-4-yl)-2-syn-methoximino acetic acid and 2-mercaptobenzothiazole |
| 12/02/2008 | CA2436848C Coupling process and intermediates useful for preparing cephalosporins |
| 11/26/2008 | EP1994035A1 Cephem compounds and use as antimicrobial agents |
| 11/26/2008 | CN101311180A Purification method for cephalosporin |
| 11/26/2008 | CN100436456C Imidazo [4,5-b] pyridiniummethyl-containing cephem compounds having broad antibacterial spectrum |
| 11/20/2008 | US20080287673 Cefdinir process |
| 11/19/2008 | CN101307064A Process for preparing cefquinome sulfate |
| 11/19/2008 | CN101307063A Novel cephalosporin compounds, preparation method thereof, pharmaceutical compositions thereof and use |
| 11/19/2008 | CN101307062A Straight method for producing 7-amino-3-descetoxy-cephalosporanic acid |
| 11/19/2008 | CN101307061A Method for preparing 7-phenylacetamido-3-chloromethyl-4-carboxylic acid p-m-ethoxybenzyl ester |