| 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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| 02/06/2013 | CN102918048A Cephem compound having catechol group |
| 02/06/2013 | CN102918047A Cephem compound having pseudo-catechol group |
| 02/06/2013 | CN102911187A Recovery method of cefprozil |
| 02/06/2013 | CN102911186A Ceftizoxime sodium preparation and refining method |
| 02/06/2013 | CN102382126B Cefuroxime-L-arginine hydrate and application thereof |
| 02/06/2013 | CN101747348B Cefoselis sulfate crystal and preparation method thereof |
| 01/30/2013 | CN102898443A Method for refining cefodizime sodium at high yield, high cleanliness and high purity |
| 01/30/2013 | CN102898442A Refinement method of ceforanide |
| 01/30/2013 | CN102898441A Method for synthesizing cefotiam |
| 01/30/2013 | CN102898440A Technology for preparing 7-phenylacetylamino-3-vinyl cephalosporanic acid p-methoxybenzyl ester |
| 01/30/2013 | CN102898439A Preparation method of descarbamoyl cefuroxime lactone |
| 01/24/2013 | WO2013010297A1 Method for purifying ceftizoxime sodium |
| 01/24/2013 | WO2013010296A1 Novel method for preparing cefmenoxime hydrochloride compound |
| 01/17/2013 | US20130017156 Cefdinir and cefixime formulations and uses thereof |
| 01/16/2013 | CN102875578A Method for synthesizing cefbuperazone sodium |
| 01/16/2013 | CN102875577A Cefminox impurity D and preparation method thereof |
| 01/16/2013 | CN102875576A Synthesis of antibiotic ceftazidime, ceftazidime for injection and preparation method of ceftazidime |
| 01/16/2013 | CN102875575A Cefodizime sodium compound and preparation thereof |
| 01/16/2013 | CN102875574A Crystal form of ceftriaxone sodium and preparation method for crystal form |
| 01/16/2013 | CN102875573A Cefixime compound and pharmaceutical composition thereof |
| 01/16/2013 | CN102875572A Refinement method of cefoselis sulfate intermediate |
| 01/09/2013 | CN102863461A (6R, 7R)-3-hydroxymethyl-7-[alpha-(N, N'-diisopropylamidino thio)-acetamido]-8-oxo-5-thia-1-azabicycle [4, 2, 0]-oct-2-ene-2-carboxylic acid |
| 01/09/2013 | CN102863460A Preparation method of cephalosporin antibiotic parent nucleus GCLE (7-phenylacetamido-3-cephem-4-carboxylic p-methoxybenzyl ester) |
| 01/09/2013 | CN101434611B Nitrogen heterocyclic ring substituted antibiotic, and preparation method and use thereof |
| 01/03/2013 | WO2013002215A1 Cephem compound having pyridinium group |
| 01/02/2013 | EP2539348A1 Cephalosporin derivatives useful as -lactamase inhibitors and compositions and methods of use thereof |
| 01/02/2013 | CN102850381A Preparation method of cefotiam hydrochloride crude product |
| 01/02/2013 | CN102850380A Preparation method of cefodizime acid |
| 01/02/2013 | CN102850379A Synthetic method for methoxy-cephalosporin intermediate 7-MAC |
| 01/02/2013 | CN102391290B Cefoxitin anhydrous crystal, preparation method thereof and method for preparing cefoxitin sodium by using same |
| 12/27/2012 | WO2012175587A2 Novel crystalline cefoperazone intermediate |
| 12/27/2012 | US20120329770 Cephalosporin derivatives useful as beta-lactamase inhibitors and compositions and methods of use thereof |
| 12/26/2012 | CN102838623A Cefminox sodium compound crystal, preparation method of cefminox sodium compound crystal and sterile powder injection containing cefminox sodium compound crystal |
| 12/26/2012 | CN102838622A Preparation method of stable cefuroxime sodium |
| 12/26/2012 | CN102838621A (6R,7R)-3-methyl-7-[alpha-(N,N'-diisopropyl amidine thio)-acetylamino]-8-oxo-5-thia-1-azabicyclo[4,2,0]-oct-2-alkene-2-formic betaine crystals |
| 12/26/2012 | CN102050830B Cephalosporin derivative containing nitrogen-containing fused-heterocycle |
| 12/26/2012 | CN102040615B Pyrrolin naphthene base-containing cephalo antibiotic |
| 12/26/2012 | CN102030762B Preparation method of cefprozil |
| 12/26/2012 | CN101830912B Cefetamet pivoxil hydrochloride compound and new preparation method thereof |
| 12/26/2012 | CN101781319B Cephalosporin derivative containing substitutive triazole |
| 12/19/2012 | CN102827190A Cefoselis sulfate intermediate and preparation method thereof |
| 12/19/2012 | CN101914106B Cefamandole nafate hydrate and preparation method thereof |
| 12/12/2012 | CN102816174A Amorphous cefmenoxime hydrochloride compound |
| 12/12/2012 | CN102816173A Preparation method of cefodizime sodium |
| 12/12/2012 | CN102816172A Preparation process of cefamandole nafate |
| 12/12/2012 | CN102180891B Cefmenoxime hydrochloride micro-powder and preparation method and device thereof |
| 12/12/2012 | CN102060861B Desalination concentration method for cephalo mother liquor |
| 12/12/2012 | CN102020664B Synthesis method for cefdinir |
| 12/12/2012 | CN101891757B Preparation method of catalyst for producing cephalosporin |
| 12/11/2012 | US8329895 Cefdinir acid double salt and method for producing the same |
| 12/11/2012 | US8329684 Cephalosporin derivatives and pharmaceutical compositions thereof |
| 12/11/2012 | CA2721440C Crystalline (6r,7r)-7-{2-(5-amino-[1,2,4]thiadiazol-3-yl)-2-[(z)-trityloxyimino]-acetylamino}-3-[(r)-1'-tert-butoxycarbonyl-2-oxo-[1,3']bipyrrolidinyl-(3e)-ylidenemethyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester; its manufacture and use |
| 12/05/2012 | CN102807573A Method for preparing ceftizoxime |
| 11/28/2012 | CN102796120A Method for preparing cefaclor |
| 11/28/2012 | CN102796119A Cefpirome sulfate compound and composition thereof |
| 11/28/2012 | CN102796118A Cefodizime sodium compound solid, method for preparing same and pharmaceutical preparation of cefodizime sodium compound solid |
| 11/28/2012 | CN102796117A Method for preparing cefcapene pivoxil hydrochloride |
| 11/28/2012 | CN102796116A Preparation method of high purity Ceftizoxime |
| 11/27/2012 | US8318450 Optically-detectable enzyme substrates and their method of use |
| 11/22/2012 | WO2012155203A1 Regulation of nitric oxide release and biofilm development |
| 11/22/2012 | CA2835642A1 Regulation of nitric oxide release and biofilm development |
| 11/21/2012 | CN202538420U Decolorization column for decolorization of 7-amino cephalosporanic acid |
| 11/21/2012 | CN102784709A Method for rotationally grinding cefquinome sulfate raw material at low temperature and at high speed |
| 11/21/2012 | CN102784627A Magnetic microzyme surface imprinted adsorbent for selectively separating cefalexin as well as preparation method and application thereof |
| 11/21/2012 | CN102127094B Cefteram pivoxil compound and novel preparation method thereof |
| 11/14/2012 | CN102775426A Crystallization method of ceftezole sodium |
| 11/14/2012 | CN102775425A Method for preparing Boc-Cefcapene through one-pot boiling |
| 11/08/2012 | WO2012150520A1 Novel cephalosporins useful as antibacterial agents |
| 11/08/2012 | US20120283237 Novel cephalosporins useful as antibacterial agents |
| 11/08/2012 | CA2834999A1 Novel cephalosporins useful as antibacterial agents |
| 11/07/2012 | EP2520578A1 Process for purification of cephalosporins |
| 11/07/2012 | CN102766148A Cefamandole nafate compound and composite thereof |
| 11/01/2012 | WO2012147773A1 Novel cephem compound having catechol or pseudo-catechol structure |
| 11/01/2012 | CA2833121A1 Novel cephem compound having catechol or pseudo-catechol structure |
| 10/31/2012 | EP2516448A1 Amine salts of cefdinir |
| 10/31/2012 | CN102757450A Method for preparing cefonicid dibenzylethylenediamine salt |
| 10/31/2012 | CN101993449B Preparation methods of high-purity cefotiam hexetil and dihydrochloride of high-purity cefotiam hexetil |
| 10/31/2012 | CN101830913B Cephalosporins parent nucleus derived compound, cephem onium salt compound prepared by same and method for preparing cephalosporins pyrazol sulfate by adopting same |
| 10/30/2012 | US8299051 Beta-lactamase inhibitory compounds |
| 10/24/2012 | CN102746324A Purification method of cefotiam hydrochloride and aseptic powder injection of cefotiam hydrochloride |
| 10/24/2012 | CN102746323A Novel crystal form of cefuroxime acid and preparation method thereof |
| 10/24/2012 | CN102746322A Preparation method of cephalosporin intermediates7-amino-3-methoxymethyl-2-cephem-2- carboxylic acid |
| 10/18/2012 | US20120264727 Novel cephalosporin derivatives and pharmaceutical compositions thereof |
| 10/17/2012 | CN102731532A Cefotetan disodium compound as well as preparation method and medicinal composition thereof |
| 10/17/2012 | CN102731531A Cefmenoxime hydrochloride compound and synthesizing method thereof |
| 10/17/2012 | CN102731530A Novel cephalosporin compound and its synthesis method and use |
| 10/17/2012 | CN102731529A Refining method for cefixime |
| 10/17/2012 | CN101875660B Method for separating and purifying deacetyl cephalosporin C from cephalosporin C fermentation liquor |
| 10/10/2012 | CN202478922U Device for reducing solvent residue of cefdinir finished product |
| 10/10/2012 | CN202478642U Device for controlling crystallization of cefdinir finished product |
| 10/10/2012 | CN102725297A Process for preparation of cephalosporin derivative |
| 10/10/2012 | CN102718780A Preparation method of cefmetazole sodium |
| 10/10/2012 | CN102718779A Ceftizoxime sodium for injection and preparation method thereof as well as synthetic method for ceftizoxime sodium serving as crude drug |
| 10/10/2012 | CN101838276B Cefpiramide sodium hydrate and preparation method and application thereof |
| 10/04/2012 | WO2012134184A2 Novel cephalosporin derivative and medical composition containing same |
| 10/04/2012 | CA2831421A1 Novel cephalosporin derivatives and pharmaceutical compositions thereof |
| 10/03/2012 | CN102702233A Preparation method of ceftriaxone sodium |
| 10/03/2012 | CN102702232A Method for preparation of fine cefamandole nafate |
| 10/03/2012 | CN102702231A Method for preparing 3-descarbamoyl-cefuroxime acid |
| 10/03/2012 | CN102702230A Method for preparing cefotaxime acid |