| Patents for C07D 463 - Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (613) |
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| 08/25/1993 | EP0557035A2 An ester cleavage process for use with beta-lactams |
| 08/24/1993 | US5239069 Amino protecting group |
| 08/24/1993 | US5239068 Cephalosporins |
| 08/19/1993 | CA2089544A1 Methods and compounds for the preparation of carbacephems |
| 08/19/1993 | CA2089540A1 Ester cleavage process for use with .beta.-lactams |
| 08/11/1993 | CN1075146A Process for making antimicrobial quinolonyl lactams |
| 05/12/1993 | EP0540609A1 Cephalosporins and homologues, preparations and pharmaceutical compositions |
| 05/12/1993 | EP0540606A1 Cephalosporins and homologues, preparations and pharmaceutical compositions |
| 04/21/1993 | CN1020340C 1-carbacephalosporin antibiotics |
| 04/15/1993 | WO1993007154A1 Process for making antimicrobial quinolonyl lactams |
| 04/15/1993 | CA2120493A1 Process for making antimicrobial quinolonyl lactams |
| 02/23/1993 | US5189158 Acid mediated ring closure |
| 02/03/1993 | EP0525057A1 Antimicrobial quinolonyl lactams |
| 01/20/1993 | EP0523585A2 Improvements in or relating to beta lactam production |
| 01/19/1993 | US5180719 Antimicrobial quinolonyl lactam esters |
| 01/12/1993 | US5179088 Administering bactericides |
| 12/08/1992 | US5169945 Reacting imide with secondary amine to form amide which protects amine during nucleophilic reactions |
| 12/02/1992 | CN1066655A Process for preparing doubly blocked 1-carba(1-dethia)-3-cephem-4-carboxylic acids |
| 11/17/1992 | CA1310323C Process and preparing cis-1-carba(1-dethia)cephalosporins and intermediates therefor |
| 11/11/1992 | EP0512813A2 Process for preparing doubly blocked 1-carba(1-dethia)-3-cephem-4-carboxylic acids |
| 11/11/1992 | CA2067708A1 Process for preparing doubly blocked 1-carba(1-dethia)-3-cephem-4-carboxylic acids |
| 10/28/1992 | EP0511001A2 Ring-closure method for 1-carbacephalosporin six-membered ring |
| 10/27/1992 | US5158946 Antibiotics, bactericides |
| 10/26/1992 | CA2066493A1 Ring-closure method for 1-carbacephalosporin six-membered ring |
| 10/07/1992 | CN1065061A 4-substituted azetidinodes as precursors to 2-substituted-2-carboxy carbapenem antibiotics and method of producing them |
| 09/23/1992 | EP0504612A2 Novel 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them |
| 09/23/1992 | EP0504216A1 Cephalosporins, processes for their preparation, intermediates and pharmaceutical compositions containing them |
| 09/23/1992 | EP0222022B1 Process for producing beta-lactam derivatives |
| 09/21/1992 | CA2063326A1 Novel 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them |
| 08/25/1992 | US5142039 β-lactam antibiotics |
| 08/05/1992 | CN1063284A Antibacterial agents |
| 08/04/1992 | CA1305964C2 1-carba (dethia) cephalosporin 3-triflate ester antibiotics |
| 07/29/1992 | CN1063104A Trifluoromethyl 1-carba (1-dethia) cephems |
| 07/22/1992 | EP0495585A1 Antibacterial agents |
| 07/15/1992 | EP0494733A1 Trifluoromethyl 1-carba(1-dethia)cephems |
| 07/11/1992 | CA2058699A1 Trifluoromethyl 1-carba(1-dethia)cephems |
| 07/07/1992 | US5128336 3-(substituted)-1-carba(dethia)-3-cephems |
| 07/07/1992 | CA1304744C Process for intermediates to 1-carbapenems and 1- carbacephems |
| 05/26/1992 | US5116972 4-(2,3 epoxypropane)azetidinones |
| 05/19/1992 | US5114933 Cephalosporin compounds |
| 05/13/1992 | EP0485103A2 Process for cleavage of esters during the production of cephalosporins |
| 05/06/1992 | EP0484030A2 Antibiotic C-3 cyclobutenedione substituted (1-carba)cephalosporin compounds, compositions, and methods of use thereof |
| 05/06/1992 | CA2054451A1 Process for cleavage of esters during the production of cephalosporins |
| 04/23/1992 | CA2053159A1 Antibiotic c-3 cyclobutenedione substituted (1-carba) cephalosporin compounds, compositions, and methods of use thereof |
| 04/22/1992 | CN1060469A Process for preparing cephalosporins derivants |
| 04/21/1992 | US5106968 Process for bicyclic β-lactams diazo-β-keto-butyrate-intermediates for bicyclic β-lactams |
| 04/21/1992 | US5106842 Antibiotic c-3 cyclobutenedione substituted (1-carba)cephalosporin compounds, compositions, and methods of use thereof |
| 03/24/1992 | US5099015 Trifluoromethyl 1-carba(1-dethia)cephems |
| 03/10/1992 | US5095107 Process for cleavage of esters during the production of cephalosporins |
| 02/25/1992 | US5091525 7beta- 2'-(R)-2'-(p-hydroxyphenyl-2'-amino-acetamido!-3-chloro -3-(1-carbadethiacephem)-4-carboxylic acid |
| 02/18/1992 | US5089610 Ring-closure method for 1-carbacephalosporin six-membered ring |
| 02/18/1992 | US5089490 Cephem derivatives |
| 02/18/1992 | CA1295995C Antibacterial compounds, their production and use |
| 02/06/1992 | WO1992001696A1 Cephalosporins and homologues, preparations and pharmaceutical compositions |
| 02/06/1992 | WO1992001695A1 Cephalosporins and homologues, preparations and pharmaceutical compositions |
| 12/31/1991 | US5077287 3-thiazolylthio carbacephem antibacterial agents |
| 12/25/1991 | CN1015178B Process and intermediates for beta-lactam antibiotics |
| 12/18/1991 | CN1015103B Process for preparing 3-halo-1-carbo-3-cephem-4-carboxylic acid and its deriv. |
| 12/11/1991 | EP0460881A1 Process for bicyclic beta-lactams |
| 12/07/1991 | CA2043939A1 Process for bicyclic .beta.-lactams |
| 12/03/1991 | US5070194 Deprotection of intermediates |
| 11/21/1991 | EP0457512A2 New amino protecting group |
| 11/15/1991 | CA2041897A1 Amino protecting group |
| 11/12/1991 | US5064649 Cephalosporin derivatives |
| 10/31/1991 | WO1991016327A1 Antimicrobial quinolonyl lactams |
| 10/31/1991 | WO1991016310A1 Antimicrobial quinolone thioureas |
| 10/31/1991 | CA2078444A1 Antimicrobial quinolonyl lactams |
| 10/31/1991 | CA2077435A1 Novel antimicrobial quinolone thioureas |
| 10/22/1991 | CA1291118C Process for preparing cephalosporin compounds |
| 10/01/1991 | US5053500 Intermediates for the preparation of beta-lactam antibiotics |
| 09/24/1991 | US5051502 Rhodium catalyzed cyclization process for bicyclic β-lactams |
| 09/17/1991 | US5049558 Quaternized nitrogen-heterocycle substituted |
| 09/11/1991 | EP0445925A1 1-Carba(dethia)caphalosporin antibiotics |
| 08/07/1991 | CN1053611A Crystalline hydrochloride of new beta-lactam antibiotic and process therefor |
| 08/06/1991 | US5037975 Cephalosporin free radical compounds |
| 07/31/1991 | EP0439353A1 Crystalline hydrochloride of new beta-lactam antibiotic and process therefor |
| 06/27/1991 | WO1991009038A1 Cephalosporins, processes for their preparation, intermediates and pharmaceutical compositions containing them |
| 06/12/1991 | EP0431794A2 3-Fluorosulfonyloxyceph-3-EM displacement process |
| 06/05/1991 | EP0430556A2 (1-Akylsubstituted) and 1,1-dialkylsubstituted) carbacephalosporins |
| 05/28/1991 | US5019571 1-carbacephalosporin antibiotics |
| 05/28/1991 | CA2030367A1 (1-alkylsubstituted) and (1,1-dialkylsubstituted) carbacephalosporins |
| 05/22/1991 | CA2147460A1 3-fluorosulfonyloxyceph-3-em displacement process |
| 04/16/1991 | CA1283096C Antibacterial compounds |
| 03/20/1991 | EP0418020A2 Cephalosporinderivatives, process for their preparation and pharmaceutical compositions |
| 03/20/1991 | CN1050023A Process for preparation of cephalosporin derivative |
| 03/13/1991 | EP0416814A2 Cephalosporin compounds, process for their preparation, pharmaceutical compositions and intermediates |
| 03/13/1991 | EP0416810A2 Cephalosporin compounds, process for their preparation, pharmaceutical compositions and intermediates |
| 03/05/1991 | CA2024396A1 Compounds |
| 01/08/1991 | US4983732 Cehmical intermediates for beta-lactam antibiotics |
| 12/27/1990 | EP0404584A2 Oxidation and reduction method to produce 4-acyloxyazetidin-2-one |
| 12/25/1990 | US4980348 Carbacephem antibiotics |
| 12/21/1990 | CA2019483A1 Oxidation and reduction method to produce 4-acyloxyazetidin-2-one |
| 12/18/1990 | CA1277978C Antibacterial compounds, there production and use |
| 12/11/1990 | US4977257 DMF solvates of a β-lactam antibiotic |
| 12/11/1990 | US4976834 Asymmetric photochemical reaction process |
| 10/31/1990 | EP0395219A2 Cephalosporins and their homologues, process for their preparation and pharmaceutical compositions |
| 10/09/1990 | US4962100 3-amidazolium-1-yl-methyl,7-(2-(5-amino-1,2,4-thiadiazol-3-yl) 2-alkoxyiminoacetamido) derivatives; active against cephalosporin-resistant bacteria |
| 09/30/1990 | CA2013391A1 Compounds |
| 09/26/1990 | EP0389176A2 Beta-lactams and processes for their preparation |
| 09/25/1990 | CA1274519A1 1-carbacephalosporin antibiotics |