| 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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| 04/12/1994 | US5302711 Deesterification of the blocked 3- or 4-carboxylate derivative of cepham or penam with lithium iodide in a nonbasic solvent having a dielectric constant of between 0 and 15 |
| 04/10/1994 | CA2107812A1 Quinolone carboxylic acids |
| 04/07/1994 | DE2760488C2 Thiazolyl methoxy-imino-acetamido cephalosporins |
| 04/06/1994 | EP0589914A1 Novel 3-fused pyridiniummethyl cephalosporins |
| 03/31/1994 | WO1994006804A1 Cephem compound, process for producing the same, and medicine containing the same |
| 03/30/1994 | EP0118567B1 Process for the preparationof 2-substituted cephem derivatives |
| 03/22/1994 | US5296358 Process for the enzymatic preparation of cephalosporanic derivatives using a D-amino acid oxidase from Rhodotorula glutinis NCIMB 40412 |
| 03/16/1994 | EP0587121A1 Crystalline dihydrate of a cephalosporin dihydrochloride salt and injectable compositions thereof |
| 03/16/1994 | CN1024012C New cephalosporin derivatives and antibiotics containing the same |
| 03/16/1994 | CN1024011C Method for producing cephalosporin compounds |
| 03/15/1994 | US5294705 Salt formation, methylation |
| 03/09/1994 | CA2101571A1 Crystalline dihydrate of a cephalosporin dihydrate salt and injectable compositions thereof |
| 03/08/1994 | US5292733 Cephalosporin compounds |
| 03/08/1994 | CA1327566C Brain-specific drug delivery |
| 03/02/1994 | EP0584797A2 Novel cephalosporin compounds and processes for the preparation thereof |
| 03/02/1994 | EP0378604B1 1,1-dioxo-cephem-4-carbothiolic acid derivatives |
| 03/02/1994 | CN1023925C Supporting structure for heater of electron gun |
| 02/23/1994 | CN1082610A A method for the acylation of the 7-amino group of the cephalosporanic ring |
| 02/22/1994 | CA1327170C Recombinant dna expression vectors and dna compounds that encode deacetoxycephalosporin c synthetase and deacetylcephalosporin c synthetase |
| 02/09/1994 | EP0582261A1 Cephalosporin compounds and processes for the preparation thereof |
| 02/09/1994 | EP0582102A2 A method for the acylation of the 7-amino group of the cephalosporanic ring |
| 02/09/1994 | EP0581789A1 Novel 2-spirocyclopropyl cephalosporin sulfone derivatives and processes for the preparation thereof |
| 02/08/1994 | US5284754 Process for the continuous conversion of cephalosporin derivatives into glutaryl-7-aminocephalosporanic acid derivatives |
| 02/08/1994 | CA2103696A1 A method for the acylation of the 7-amino group of the cephalosporanic ring |
| 02/08/1994 | CA1326855C _-lactonecarboxylic acid derivatives and their production |
| 02/03/1994 | WO1994002491A1 Cephalosporin derivative |
| 02/03/1994 | WO1994002490A1 Process for producing cephem compound |
| 02/03/1994 | WO1994002489A1 Cephalosporins and 1-carba-1-dethia cephalosporins |
| 02/03/1994 | CA2140854A1 Cephalosporin derivatives |
| 02/02/1994 | EP0581552A2 Triazolylthiomethylthio cephalosporin hyrochloride, its crystalline hydrate and the production of the same |
| 02/02/1994 | EP0581220A2 Process for preparing cephalosporin intermediates |
| 02/02/1994 | EP0580650A1 Novel 2-spirocyclopropyl 4-acylcephems and processes for the preparation thereof |
| 02/02/1994 | EP0393066B1 Cephalosporin antibiotics |
| 02/01/1994 | US5283329 Chemical intermediate for biosynthesis of antibiotics |
| 02/01/1994 | CA2101502A1 Triazolylthiomethylthio cephalosporin hydrochloride, its crystalline hydrate and the production of the same |
| 01/25/1994 | US5281589 3-fused pyridiniummethyl cephalosporins |
| 01/25/1994 | CA1326488C Substituted 1,2,3-thiadiazole-4-thiolates |
| 01/19/1994 | EP0579221A1 Cephem compounds, their production and use |
| 01/18/1994 | CA2100623A1 Cephem compounds, their production and use |
| 01/11/1994 | US5278157 Tapped density |
| 01/06/1994 | WO1994000457A1 Alphalosporins and 1-carba-1-dethia cephalosporins |
| 01/04/1994 | US5276024 3-substituted cephalosporins, and their use as medicaments |
| 01/04/1994 | US5275816 Cephalosporin derivatives |
| 12/29/1993 | CN1023322C Carboxyalkenamidocephalosporins compound preparation |
| 12/22/1993 | EP0574940A1 Method for removing the protecting group for carboxyl group |
| 12/15/1993 | EP0573849A2 7-amino-3-methoxymethyl-3-cephem-4-carboxy acid ester-hydrolase, method of its production and its utilization |
| 12/09/1993 | WO1993024493A1 Cephalosporin derivative |
| 12/08/1993 | EP0385999B1 Application of 4- 1-oxoalkyl]-2,5-oxazolidinediones in selective stereospecific formation of biologically active beta-lactams |
| 12/07/1993 | CA2097770A1 7-amino-3-methoxymethyl-3-cephem-4-carboxylic ester hydrolase, process for its preparation, and its use |
| 12/07/1993 | CA1325077C Beta-lactam derivatives |
| 12/01/1993 | CN1078970A Novel 3-fused pyridiniummethyl cephalosporins |
| 12/01/1993 | CN1022922C Process for preparing substantially anhyrous crystalline cetadroxil |
| 11/30/1993 | US5266691 Processes for making cephems from allenylazetidinone derivatives |
| 11/24/1993 | EP0570849A2 Cleavage process of cephalosporin prodrug esters in 7-amino-3-methoxymethylceph-3-em-4-carboxylic acid |
| 11/24/1993 | EP0321562B1 Crystalline cephalosporin compounds, process for their preparation, and intermediates for their preparation |
| 11/24/1993 | CN1078718A A production method for sulfamide |
| 11/24/1993 | CN1022837C Process for preparation of cephem derivatives and intermediates therefor |
| 11/23/1993 | US5264430 Enzyme inhibitor, antiinflammatory agents, treats emphysema, cystic fibrosis and arthritis |
| 11/23/1993 | US5264429 Enzyme inhibitor, antiinflammatory agents, treats emphysema, cystic fibrosis and arthritis |
| 11/18/1993 | EP0570058A2 Process for the preparation of halogenated beta-lactam compounds |
| 11/16/1993 | US5262411 Isocephem derivatives, and antimicrobial composition containing the derivatives |
| 11/16/1993 | US5262410 3-heterocyclic thiomethyl cephalosporins |
| 11/09/1993 | US5260438 With fluorine compound |
| 11/03/1993 | EP0568004A2 Microbiological process for the preparation of malonyl-7-aminocephalosporanic acid derivatives |
| 11/03/1993 | EP0567949A1 Method for removing the protecting group for hydroxy group |
| 11/03/1993 | CN1077989A Microbiological process for preparation of malonyl-7-aminocephalosporansaur-derivative |
| 11/03/1993 | CN1022629C Process for preparing cephalosporins compounds and antibiotics |
| 11/03/1993 | CN1022628C Method for preparation of 7/D(-1)-alpha-amino-alpha-(p-hydroxy-phenyl) acet amido/-3-methyl-3-cephem-4-carboxylic acid monohydrate |
| 11/02/1993 | US5258377 2-spirocyclopropyl 4-acylcephems |
| 10/30/1993 | CA2095166A1 Microbiological process for the production of malonyl-7-aminocephalosporanic acid derivatives |
| 10/27/1993 | EP0567323A2 Improved process for preparing cephalosporins |
| 10/27/1993 | CN1077749A Improved process for preparing cephalosporins |
| 10/25/1993 | CA2094686A1 Process for preparing cephalosporins |
| 10/20/1993 | EP0566459A1 Reagent and catalytic process for cleaving protected functional groups |
| 10/19/1993 | US5254680 Elastase inhibitors |
| 10/19/1993 | US5254679 Containing a quaternized nitrogen |
| 10/16/1993 | CA2093989A1 Reagent and catalytic process for clearing a protected function |
| 10/13/1993 | EP0565351A2 Process for preparing 7-substituted-amino-3-hydroxy-3-cephem-4-protected carboxy-sulfoxide esters |
| 10/13/1993 | EP0564835A2 2,2-Disubstituted cephem sulphones |
| 10/12/1993 | US5252731 Cephalosporin intermediates |
| 10/09/1993 | CA2093507A1 Process for preparing 7-substituted-amino-3-hydroxy-3-cephem-4-protected carboxy-sulfoxide esters |
| 10/05/1993 | US5250725 Aromatic acid intermediates |
| 09/21/1993 | US5247073 7-(Amino or protected amino)-3-thioheterobicyclic cephalosporins |
| 09/21/1993 | US5246926 Cephalosporin derivatives |
| 09/16/1993 | WO1993018044A1 Cephalosporin derivatives |
| 09/15/1993 | EP0560365A1 Cephalosporin derivative |
| 09/14/1993 | US5245027 Antibiotics |
| 09/14/1993 | US5244892 Cephem compounds, and antibacterial agents |
| 09/14/1993 | US5244890 Cephem compounds |
| 09/08/1993 | EP0559533A1 Process for preparing beta-lactam derivative and synthetic intermediate thereof |
| 09/08/1993 | CN1022036C Process for preparing cephalosporim compounds |
| 09/07/1993 | US5243043 Cephalosporins |
| 09/07/1993 | US5242913 Antibiotics |
| 09/07/1993 | CA2085540A1 Process for preparing beta-lactam derivative and synthetic intermediate the reof |
| 08/25/1993 | EP0557122A1 A production method for sulfamide |
| 08/25/1993 | EP0557035A2 An ester cleavage process for use with beta-lactams |
| 08/25/1993 | EP0556768A2 New process for the production of ceftriaxone |
| 08/25/1993 | EP0556630A2 Process for the synthesis of exomethylenecephams |
| 08/24/1993 | US5239069 Amino protecting group |
| 08/24/1993 | US5239068 Cephalosporins |