| 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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| 03/10/2005 | WO2005020904A2 Oral neurotherapeutic cefazolin compositions |
| 03/10/2005 | WO2005005436A3 Cross-linked glycopeptide-cephalosporin antibiotics |
| 03/10/2005 | WO2005003141A3 An improved process for the preparation of cefditoren |
| 03/10/2005 | CA2536910A1 Oral neurotherapeutic cefazolin compositions |
| 03/09/2005 | EP1512689A1 Process for producing 3-cephem compounds |
| 03/03/2005 | WO2005019227A1 Process for the preparation of cephalosporin antibiotic |
| 03/02/2005 | CN1587267A Process for synthesizing cefpirome sulfate |
| 03/02/2005 | CN1587240A New method for preparing and separating integrately antibiotic medicine in ionic liquid double water phase |
| 02/24/2005 | WO2005016936A2 Process for selective preparation of z-isomer of cefditoren and pharmaceutically acceptable salts and esters thereof |
| 02/24/2005 | WO2004037163A3 STERICALLY-AWKWARD β-LACTAMASE INHIBITORS |
| 02/24/2005 | US20050043531 Acylation of 7-Amino-3-[(1-methyl-1-pyrrolidinium) methyl]-3-cephem-4-carboxylate with 4-halo-2-methoxyimino-3-oxobutyric acid halide, and then cyclization with thiourea; high purity |
| 02/24/2005 | US20050043289 cephalosporins; antimicrobial agent |
| 02/23/2005 | CN1585758A A process for the preparation of cephalosporins side chains |
| 02/16/2005 | EP1385853A4 Beta-lactamase substrates having phenolic ethers |
| 02/16/2005 | CN1580058A Method for preparig 3-chloromethyl-3-cephem derivative crystalline |
| 02/16/2005 | CN1189471C Phosphonocephem compound |
| 02/16/2005 | CN1189161C Non-crystalline cefuroxime axetil solid dispersant, process for preparing same and composition for oral adminisration thereof |
| 02/10/2005 | US20050032771 Process for the preparation of cefixime via alkyl-or aryl-sulfonates |
| 02/09/2005 | CN1188418C Cephalosporines having cyclic aminoguanidine substituents as antibiotics |
| 02/08/2005 | US6852856 Dissolving a 4-(4,6-dialkyl-aryloxy-s-triazin-2-yl)-), 4-methylmorpholinium halide in water and freezing; or, decreasing the content of a 4,6-dialkyl-s-triazine impurity; condensation agents for amidation and esterification reactions |
| 02/03/2005 | US20050027118 Process for the preparation of a cephalosporin antibiotic |
| 02/03/2005 | US20050026818 Cross-linked glycopeptide-cephalosporin antibiotics |
| 02/02/2005 | EP1501839A2 Process for the preparation of ceftiofur acid |
| 01/27/2005 | US20050020561 Amidation; acidification; antibiotics |
| 01/26/2005 | EP1278754B1 Cephalosporin intermediates |
| 01/26/2005 | CN1186021C Antimicrobial composition |
| 01/25/2005 | CA2107153C Method for obtaining and processing seismic data recorded from sensors installed vertically in the underground to follow the movement of fluids in an underground reservoir |
| 01/20/2005 | WO2005005436A2 Cross-linked glycopeptide-cephalosporin antibiotics |
| 01/19/2005 | EP1436299A4 Method for crystallization of 7-aminocephalosporanic acid |
| 01/19/2005 | CN1568325A Cross-linked glycopeptide-cephalosporin antibiotics |
| 01/13/2005 | WO2005003367A2 Process for the preparation of cephradine |
| 01/13/2005 | WO2005003141A2 An improved process for the preparation of cefditoren |
| 01/06/2005 | WO2005000853A1 Novel cephalosporin derivatives, its pharmaceutically acceptable salts and manufacturing process thereof |
| 01/06/2005 | US20050004095 Carbacephem beta-lactam antibiotics |
| 01/06/2005 | US20050004094 Cephem compounds |
| 01/05/2005 | CN1183142C Cynnematin kind antibiotics and composite and use |
| 01/05/2005 | CN1183141C Vinyl-pyrrolidone cynnematin with alkali substituent |
| 12/30/2004 | US20040267008 Cyclization of (2-Oxo-4-(2-oxo-2-(tetrahydrofuran-2-yl)-ethylsulfanyl)-3-phenylacetylamino -azetidin-1-yl)-(trimethyl- alpha -phosphanylidene)-acetic acid 4-nitro-benzyl ester; reacting with acid |
| 12/29/2004 | CN1182139C Process for preparing a pure, pharmacopoeial grade amorphous form of cefuroxime axetil |
| 12/28/2004 | US6835829 Purification process |
| 12/23/2004 | WO2004111059A1 A process for the preparation of a cephalosporin antibiotic |
| 12/23/2004 | WO2004067536A3 Carboxylic acid esters to improve bioavailability of pharmaceutical compounds |
| 12/23/2004 | US20040260084 Having an acceptable side chain radical bonded to the 3 position of the cephalosporin ring by an aminomethylthio- or an oxymethylthio- group, e.g., (6R,7R)-(3-methoxymethylthio-8-oxo-7(-2-phenylacetamino)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene)-2-carboxylic acid |
| 12/22/2004 | EP1489084A1 Broad-spectrum cephem compounds |
| 12/22/2004 | EP1489061A1 Process for producing cyclic compound |
| 12/22/2004 | CN1181072C Process for preparation of basic anti-biotic-inorganic acid and intermediate oxalates |
| 12/21/2004 | US6833459 Reducing thiazole ester to thiazole alcohol using sodium borohydride in the presence of aluminum chloride in a solvent and oxidising the thiazole alcohol to obtain 4-methyl-5-formyl-thiazole |
| 12/21/2004 | US6833452 Process for the preparation of highly pure crystalline (R,S)—cefuroxime axetil |
| 12/15/2004 | EP1320533A4 Prodrugs of a 7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotic |
| 12/15/2004 | CN1179963C Cephalosporin kind antibiotics and composition and use |
| 12/09/2004 | WO2004106347A1 Cephem compound |
| 12/09/2004 | WO2004092183A3 Processes for the preparations of cefepime |
| 12/09/2004 | US20040248875 Such as 7-[-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(1-carboxy-1-methylethoxyimino)acetamido]-3-[3-amino-4-(3-aminopropyl)-2-methyl-1-pyrazolio]methyl-3-cephem-4-carboxylate; antimicrobial agents; synthesis |
| 12/07/2004 | US6828442 Preparation of n-protected-3-pyrrolidine-lactam substituted phosphonium salts |
| 12/02/2004 | WO2004104010A1 Crystalline form of cefdinir |
| 12/02/2004 | WO2004083172A3 Process for the preparation of 7-amino (p-hydroxyphenylglyclyamido) cephem compounds |
| 12/02/2004 | US20040242864 Process for the preparation of crystalline cefuroxime axetil |
| 12/02/2004 | US20040242863 Reacting a 2-aminothiazole compound with cephalosphorin; isolation of cefotaxime |
| 12/02/2004 | US20040242557 Process for preparing cefdinir |
| 12/02/2004 | US20040242556 stable, nontoxic, non-solvate crystal structured modification of 7 beta -[(Z)-2-(2-amino-4-thiazolyl)-2-hydroxyiminoacetamido]-3-vinyl-3-cephem-4-carboxylic acid, prepared by isomerization |
| 11/30/2004 | US6825345 Reacting 7-amino-3-vinylceph-3-em-4-carboxylic acid with 2-(2-amino-4-thiazolyl-2(aryl or alkyl)oxycarbonylmethyoxy-iminoacetylthio-)benzothiazole to obtain cefixime; salt formation with tert-octylamine; crystal structure |
| 11/30/2004 | US6825344 Process for the preparation of cephalosporin compounds and synthetic intermediates |
| 11/25/2004 | WO2004101572A1 7-glutaryl imide cephalosporanic acid derivatives and process for preparing it |
| 11/25/2004 | WO2004101571A1 Cephem compounds |
| 11/24/2004 | EP1478649A1 Novel cephalosporin compounds and process for preparing the same |
| 11/18/2004 | WO2004098500A2 CARBACEPHEM ss-LACTAM ANTIBIOTICS |
| 11/18/2004 | CA2526875A1 Carbacephem beta-lactam antibiotics |
| 11/17/2004 | CN1176089C Preparation of cephalosporin compounds |
| 11/11/2004 | US20040224925 Method and compositions for treating persistent pulmonary hypertension using aralkyl ester soft drugs |
| 11/11/2004 | US20040224924 Programming a specific course and rate for a parent drug compound's metabolism that leads to an inactive or weakly active and non-toxic metabolite when the parent drug compound is administered, comprising modifying the parent drug compound by forming one or more of a predetermined chemical arrangement |
| 11/10/2004 | EP1474428A1 Crystalline hydrochloride of 7- [(5-amino-1,2,4-thiadiazol-3-yl)(fluoromethoxyimino)acetyl]amino -3-[(imino-1-piperazinylmethyl)methylhydrazono]-methyl-3-cephem-4-carboxylic acid |
| 11/03/2004 | CN1542012A Cefetamet sodium and its application of preparing powder injection or dry powder injection for broad-spectrum strong antibiotic injection |
| 11/03/2004 | CN1173979C Propenyl cephalosporin derivatives |
| 10/28/2004 | WO2004092183A2 Processes for the preparations of cefepime |
| 10/28/2004 | WO2004050663A3 An improved process for the preparation of cefuroxime sodium |
| 10/27/2004 | EP1392703A4 Crystalline acid salts of cefdinir and process for preparing cefdinir using same |
| 10/27/2004 | CN1539840A Method for producing crystal of 3-chloromethyl-3-cephem derivative |
| 10/27/2004 | CN1172936C Process for preparing ancef |
| 10/21/2004 | US20040210050 Process for the preparation of highly pure cefuroxime axetil |
| 10/21/2004 | US20040210049 Crystalline acid salts of cefdinir and process for preparing cefdinir using same |
| 10/13/2004 | CN1170831C New process for preparation of vinyl-pyrrolidinone cephalosporine derivatives |
| 10/12/2004 | US6803461 Condensation of 7-aminocephalosporanic acid with furyl-2-carbonylthiol in borontrifluoride or a complex, and an organic solvent at 0-50 degrees c. to produce 7-amino-3-(2-(furylcarbonyl)thiomethyl)-3-cephem-4-carboxylic acid |
| 10/12/2004 | US6803460 Acidification; carbonation |
| 10/07/2004 | WO2004085444A1 Cephalosporin in crystalline form |
| 10/07/2004 | WO2004085443A1 Novel crystal of 7-[2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetamido-3-vinyl-3-cephem-4-carboxylic acid (syn isomer) and method for preparation thereof |
| 10/07/2004 | CA2520083A1 Novel crystal of 7-[2-[(2-aminothiazol-4-yl)-2-hydroxyiminoacetamide-3-vinyl-3-cephem-4-carboxylic acid (syn isomer) and method for preparation thereof |
| 10/06/2004 | EP1463734A1 An improved synthesis of ceftiofur intermediate |
| 10/06/2004 | EP1085000B1 Process for producing carboxylic acid derivative and condensing agent comprising quaternary ammonium salt |
| 10/06/2004 | CN1535275A Prodrugs of 7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotic |
| 10/05/2004 | US6800756 Condensation; cyclization |
| 10/05/2004 | US6800755 Process for the preparation of cefixime |
| 10/05/2004 | US6800621 Imidazo[4,5-b]-pyridiniummethyl-containing cephem compounds having broad antibacterial spectrum activity |
| 09/30/2004 | WO2004083217A1 An improved process for the preparation of cefoxitin |
| 09/30/2004 | WO2004083216A1 A process for the preparation of cephalosporins |
| 09/30/2004 | WO2004083172A2 Process for the preparation of 7-amino (p-hydroxyphenylglyclyamido) cephem compounds |
| 09/30/2004 | US20040192909 Intermediates in cephalosporin production |
| 09/30/2004 | CA2519853A1 Process for the preparation of 7-amino (p-hydroxyphenylglycylamido) cephem compounds |
| 09/29/2004 | EP1201665B1 Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates |
| 09/22/2004 | EP1458728A1 Crystalline cefdinir potassium dihydrate |
| 09/22/2004 | EP1458727A1 Process for the stabilization of an acidic aqueous phase comprising cephradine |