| 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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| 05/14/1999 | WO1999023098A1 Chemical acetylation of desacetyl-cephalosporins |
| 05/14/1999 | WO1999023082A1 AMINOTHIAZOLE DERIVATIVES USEFUL IN THE PREPARATION OF β-LACTAM ANTIBIOTICS |
| 05/14/1999 | CA2302437A1 Chemical acetylation of desacetyl-cephalosporins |
| 05/12/1999 | CN1216246A Antimicrobial composition |
| 04/29/1999 | WO1999020631A1 Process for producing 3-cephem compounds |
| 04/28/1999 | EP0911030A2 Antimicrobial composition comprising a vinyyl pyrrolidinon derivative and a carbapenem antibiotic or a beta-lactamase inhibitor |
| 04/28/1999 | EP0746561B1 Quinolonylcarboxamidocephalosporin derivatives and pharmaceutical compositions containing them |
| 04/28/1999 | CN1215403A Cephem compounds and drugs containing the compounds |
| 04/22/1999 | WO1999019330A1 Novel cephem compounds |
| 04/21/1999 | CN1043043C Preparation of crystalline cephem acid addition salt |
| 04/21/1999 | CN1043042C Resolution method of alpha-(2,2-dimethylpropionyloxy) ethyl 7-[2-(2-amino-thiazol-4-yl)-2-(2)-hydroxyl-imino-acetamido]-3-(methoxy methyl)-3-cephem-4-carboxylate |
| 04/14/1999 | EP0908461A1 Process for the production of cephalosporins |
| 04/14/1999 | EP0907654A1 De-esterification process |
| 04/14/1999 | EP0907633A1 New synthetic catechol derivatives, method for production and use thereof |
| 04/01/1999 | WO1999015532A1 PROCESS FOR RECOVERY OF A β-LACTAM ANTIBIOTIC |
| 04/01/1999 | WO1999015531A1 PROCEDE FOR RECOVERY OF A β-LACTAM ANTIBIOTIC |
| 03/31/1999 | EP0613480B1 Process for the preparation of cephem derivatives |
| 03/30/1999 | US5888808 Bacterial polypeptide expression employing tryptophan promoter-operator |
| 03/24/1999 | CN1211569A Substituted quinolone derivatives and pharmaceuticals containing the same |
| 03/17/1999 | CN1042536C Preparation of cephalosporin antibiotic using synisomer of thiazolyl intermediate cis-isomer |
| 03/17/1999 | CN1042535C Improved process for isolation of cefaclor after enzymatic acylation |
| 03/16/1999 | US5883248 Quaternary ammonium intermediates |
| 03/16/1999 | US5883247 Acylation with aminothiazole derivative activated as mixed anhydride of thiophosphoric acid |
| 03/16/1999 | US5883089 Bactericides and antibiotics |
| 03/10/1999 | EP0900789A2 Substituted quinolone derivatives and pharmaceuticals containing the same |
| 03/10/1999 | CN1210539A Cephem compounds and pharmaceutical use thereof |
| 03/09/1999 | US5880111 Therapeutic derivations of diphosphonates |
| 03/09/1999 | CA1340424C Substituted vinylcephalosporins, processes for their preparation and their use as medicaments |
| 03/04/1999 | WO1999010352A1 Cephalosporin crystals and process for producing the same |
| 03/04/1999 | CA2269286A1 Cephalosporin crystals and process for producing the same |
| 02/28/1999 | CA2246118A1 Substituted quinolone derivatives and pharmaceuticals containing the same |
| 02/23/1999 | US5874571 Acidification of a homogeneous basic mixture of cephalexin and 7-aminodesacetoxy cephalosporanic acid to a ph of lower than 7.8; crystallization and isolation; purification; simplification |
| 02/16/1999 | US5872249 3-ammoniopropenyl cephalosporin compounds as antibacterial agents and process for preparing the same |
| 02/11/1999 | WO1999006048A1 Bis quaternary mrsa cephem derivatives |
| 02/10/1999 | CN1207742A Process for preparation of antibiotic |
| 02/09/1999 | US5869649 Process for producing cephalosporin antibiotics |
| 02/09/1999 | US5869648 Salt formation |
| 01/28/1999 | WO1999003465A1 Antibiotics containing indole derivatives |
| 01/27/1999 | EP0893446A1 Cephem compounds and drugs containing the compounds |
| 01/27/1999 | EP0892805A1 Production of 7-aminocephalosporanic acid derivative |
| 01/27/1999 | EP0708779B1 Use of cephem derivatives as anti-metastatic agents |
| 01/20/1999 | CN1205706A Novel cephalosporin derivatives and processes for prepn. thereof |
| 01/19/1999 | US5861508 Purification of a cephalosporin salt |
| 01/19/1999 | US5861141 Pharmaceutical formulations of cefaclor |
| 01/12/1999 | US5859256 Chlorination; useful as antibacterial agents and in treating diseases caused by organisms which are resistant to beta-lactam antibiotics |
| 01/06/1999 | CN1204336A Cephalosporin antibiotics |
| 01/05/1999 | US5856502 Method for manufacture of cephalosporin and intermediates thereof |
| 01/05/1999 | US5856474 Cephalosporin synthesis |
| 01/05/1999 | US5856320 Antibiotic resistant stapylococcus |
| 12/30/1998 | WO1998058933A1 Cephalosporin compounds, use thereof and intermediate compounds of the same |
| 12/30/1998 | WO1998058932A1 Process for the selective preparation of z-isomers of 3-(2-substituted vinyl)cephalosporins |
| 12/30/1998 | WO1998058931A1 PROCESS FOR PRODUCING β-LACTAM DERIVATIVES |
| 12/29/1998 | US5854227 Therapeutic derivatives of diphosphonates |
| 12/23/1998 | EP0494914B1 2-spirocyclopropyl cephalosporin derivatives and processes for the preparation thereof |
| 12/16/1998 | EP0883621A1 Cephalosporin derivatives and processes for the preparation thereof |
| 12/16/1998 | CN1201795A Preparation of 7-amino-deacetylated cefa-alkylation acid |
| 12/10/1998 | WO1998055485A1 Process for producing 3-alkenylcephem compounds |
| 12/10/1998 | WO1998055484A1 Improved precipitation process of 7-aminocephalosporanic acid (7-aca) |
| 12/09/1998 | EP0882052A1 New cephem compounds and pharmaceutical use thereof |
| 12/08/1998 | US5847118 Methods for the manufacture of amorphous cefuroxime axetil |
| 12/08/1998 | US5847117 Reagent and catalytic process useful for cleaving a protected functional group |
| 12/08/1998 | US5847116 Process for the preparation of intermediates useful in the synthesis of cephalosporins |
| 12/01/1998 | US5843937 DNA-binding indole derivatives, their prodrugs and immunoconjugates as anticancer agents |
| 12/01/1998 | CA1340154C Substituted vinylcephalosporins, processes for their preparation and their use as medicaments |
| 11/25/1998 | CN1199735A Preparation of highly pure crystalline form of cefuroxime axetil |
| 11/24/1998 | US5840885 Processes for the production of 6-α-aminoacyl-penicillin and 7-.alpha. |
| 11/11/1998 | EP0876377A1 Process for the preparation of cephalosporins via reductive dicarbonyl cyclization induced by trialkyl phosphite of 4-thioazetidinone derivatives obtained from penicillins |
| 11/11/1998 | EP0859768A4 Amine acid salt compounds and process for the production thereof |
| 11/11/1998 | CN1198744A Amine acid salt compounds and process for the production thereof |
| 11/04/1998 | EP0874854A2 Cephalosporin antibiotics |
| 11/04/1998 | EP0874853A1 Process for preparation of cefdinir |
| 11/03/1998 | US5831086 Crystal structure |
| 11/03/1998 | US5831085 Process for manufacture of cephalosporin such as ceftazidime and intermediate thereof |
| 10/29/1998 | WO1998048037A1 A METHOD FOR CONTROLLING THE SOLUBILITY OF A β-LACTAM NUCLEUS |
| 10/28/1998 | CN1040441C Process for prepn. of 3-exomethylenecepham derivatives |
| 10/27/1998 | US5827845 Cephalosporin derivative |
| 10/20/1998 | US5824801 Reacting corresponding exomethylene compound with ozone, decomposition without reducing agent |
| 10/15/1998 | WO1998045299A1 Crystalline amine salt of cefdinir |
| 10/15/1998 | CA2283718A1 Crystalline amine salt of cefdinir |
| 10/14/1998 | EP0869962A1 Process for the recovery of a beta-lactam antibiotic |
| 10/14/1998 | EP0869961A1 Process for the recovery of cephalexin |
| 10/14/1998 | CN1195664A New benzoxazinedione derivatives, method of producing them and use thereof |
| 10/08/1998 | WO1998043981A1 Antibacterial substituted 7-acylamino-3-(methylhydrazono)methyl -cephalosporins and intermediates |
| 10/08/1998 | WO1998043980A1 A process for preparing an amorphous cefuroxime axetil having a low melting point |
| 10/07/1998 | CN1195351A Process for producing 3-norcephem compounds |
| 10/07/1998 | CN1040109C Novel cephalosporin antibiotics and processes for preparation thereof |
| 09/30/1998 | CN1040002C Process for preparing diastereoisomer of 3-cephem-4-carbon acid-1-(isopropxycabonyloxy) ethylester |
| 09/30/1998 | CN1040001C Process for preparing cephalosporin compounds from reactive organic acid derivatives |
| 09/23/1998 | EP0865443A1 Process for the preparation of an antibiotic |
| 09/23/1998 | EP0763043B1 Process for the preparation of trihydrated cefixime |
| 09/16/1998 | EP0864564A1 Method for the preparation of alpha-bromolactam derivatives |
| 09/16/1998 | CN1193014A Process for preparing alpha-bromine-lactam derivative |
| 09/16/1998 | CN1039812C Novel cephalopsorin antibiotics and processes for preparation thereof |
| 09/10/1998 | CA2231631A1 Method for the preparation of .alpha.-bromolactam derivatives |
| 09/09/1998 | EP0863139A1 Benzoxazindione derivatives, process for their preparation and their use |
| 09/08/1998 | US5804577 Cephalosporin derivatives |
| 09/05/1998 | CA2230965A1 New benzoxazinedione derivatives, a method of producing them and the use thereof |
| 09/01/1998 | US5801242 Process for making quinolonyl lactam antimicrobials and novel intermediate compounds |
| 09/01/1998 | US5801241 Cyclohexanone extraction of 3-hydroxymethylcephalosporins |
| 09/01/1998 | US5801011 Process for preparing cephalosporins with penicillin acylase without pH control |