| Patents for C07D 505 - Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (556) |
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| 01/19/1993 | US5180719 Antimicrobial quinolonyl lactam esters |
| 10/27/1992 | US5158946 Antibiotics, bactericides |
| 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 |
| 09/01/1992 | US5143910 Piperaziniocephalosporins |
| 08/25/1992 | US5142039 β-lactam antibiotics |
| 08/11/1992 | US5137909 Indole derivative and method of production thereof |
| 07/28/1992 | US5134138 Phenacylpyridiniothiocephalosporins |
| 04/28/1992 | US5109135 2- or 3-aminomethyl-4-amino-3,4-dihydro-2H-1,4-benzoxazine intermediates |
| 04/22/1992 | CN1060469A Process for preparing cephalosporins derivants |
| 03/17/1992 | US5096899 Oxapenem-3-carboxylic acids |
| 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 |
| 12/03/1991 | US5070194 Deprotection of intermediates |
| 11/19/1991 | US5066803 Chemical intermediates for analgesics |
| 11/12/1991 | US5064649 Cephalosporin derivatives |
| 10/31/1991 | WO1991016310A1 Antimicrobial quinolone thioureas |
| 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 |
| 09/17/1991 | US5049558 Quaternized nitrogen-heterocycle substituted |
| 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 |
| 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 |
| 03/13/1991 | EP0416410A1 Piperaziniocephalosporins |
| 03/05/1991 | CA2024396A1 Compounds |
| 01/23/1991 | EP0409164A2 Phenacylpyridiniothiocephalosporins |
| 01/08/1991 | US4983732 Cehmical intermediates for beta-lactam antibiotics |
| 01/02/1991 | EP0405217A1 2-Isocephems and 2-oxa-isocephems, process for their preparation and their application as and in medicines |
| 01/02/1991 | CA1278568C Salts of amino-beta-lactamic acids and process for the preparation thereof |
| 12/26/1990 | CN1048033A Indole derivatives and the prepn. |
| 12/18/1990 | CA1277978C Antibacterial compounds, there production and use |
| 12/11/1990 | US4976834 Asymmetric photochemical reaction process |
| 11/14/1990 | EP0397210A1 Indole derivative and method of production thereof |
| 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 |
| 09/19/1990 | EP0387448A2 Photochemical conversion of cephalosporins, 1-carba(dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins |
| 09/18/1990 | US4957912 7 acylamidocarbacephem antibacterial agents |
| 09/18/1990 | CA2012372A1 Compounds |
| 09/15/1990 | CA2005166A1 Photochemical conversion of cephalosporins 1-carba(1-dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins |
| 08/07/1990 | US4946837 Antibiotics |
| 07/31/1990 | CA1272188A1 Cephalosporin derivatives |
| 07/12/1990 | WO1990007505A1 2- AND 3-AMINOMETHYL-6-ARYLCARBONYL-2,3-DIHYDROPYRROLO[1,2,3-de]-1,4-BENZOXAZINES |
| 07/03/1990 | US4939250 Process for preparation of β-lactam derivatives |
| 07/03/1990 | US4939138 2- and 3-aminomethyl-6-arylcarbonyl-2,3-dihydropyrrolo(1,2,3-DE)-1,4-benzoxazines |
| 05/03/1990 | WO1990004594A1 Novel antimicrobial quinolonyl lactam esters |
| 05/03/1990 | WO1990004591A1 Novel antimicrobial dithiocarbamoyl quinolones |
| 05/02/1990 | EP0366643A2 Novel antimicrobial dithiocarbamoyl quinolones |
| 05/02/1990 | EP0366641A2 Novel antimicrobial quinolonyl lactam esters |
| 05/02/1990 | EP0366193A2 Novel antimicrobial quinolonyl lactams |
| 05/02/1990 | EP0366189A2 Novel antimicrobial lactam-quinolones |
| 04/24/1990 | CA1268177A1 1-oxo-1-dethia-cephalosporin compounds and antibacterial agent comprising the same |
| 03/27/1990 | US4912224 Carboxyalkenamidocephalosporins |
| 03/27/1990 | CA1267138A1 PROCESS FOR THE PREPARATION OF .beta.-LACTAM COMPOUNDS |
| 03/21/1990 | EP0359536A2 Cephalosporin compounds, process for their preparation and pharmaceutical compositions |
| 02/14/1990 | EP0354757A2 Cephalosporins and homologous compounds, process for their preparation and pharmaceutical compositions containing them |
| 01/16/1990 | US4894371 3-substituted-aminomethyl cephalosporin derivatives |
| 12/27/1989 | CA1264052A1 Antibacterial compounds |
| 12/19/1989 | US4888100 Ultraviolet radiation |
| 10/31/1989 | US4877783 β-lactam antibacterial agents |
| 09/19/1989 | US4868173 Cephalosporin derivatives |
| 09/19/1989 | CA1259606A1 Cephem derivatives and processes for their manufacture |
| 09/05/1989 | US4864022 7-(2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(alkyl) oxyiminoacetamido) substituted |
| 08/08/1989 | US4855420 Cephalosporin derivatives |
| 06/13/1989 | US4839351 Cephalosporins |
| 06/07/1989 | EP0318767A2 Esters of pharmacologically active carboxylic acids splittable under physiological conditions |
| 05/16/1989 | US4831026 Antibiotics |
| 03/28/1989 | CA1251785A1 Cephalosporin hydroxamic acids |
| 03/08/1989 | CN1031533A Stable oxapenem-3-carboxylic acids |
| 02/01/1989 | EP0301877A1 A method of deprotection of 3-amino azetidinones |
| 02/01/1989 | EP0301394A1 Stable oxapenem-3-carboxylic acids |
| 01/24/1989 | CA1249285A1 Preparation of azetidinone sulfinic acids from cephalosporin sulfones |
| 11/29/1988 | US4788185 Bactericides |
| 10/05/1988 | EP0285175A1 Asymmetric photochemical reaction process |
| 07/19/1988 | US4758556 Cephem derivatives |
| 07/05/1988 | CA1238910A1 Carboxyalkenoic acids |
| 05/31/1988 | US4748170 Carboxyalkenamidocephalosporins |
| 05/03/1988 | CA1236099A1 Fluoromethylthiooxacephalosporins |
| 04/27/1988 | EP0265185A2 Cephalosporins, processes for their preparation and pharmaceutical compositions containing them |
| 11/19/1987 | EP0246068A2 Process for the manufacture of cephalosporin derivatives |
| 11/10/1987 | US4705852 1-oxadethia cephalosporin hydroxamic acid derivatives |
| 10/20/1987 | US4701556 Substituted cyanamide compounds useful for the manufacture of cephalosporin derivatives |
| 09/29/1987 | CA1227482A1 Production of l-oxacephams |
| 09/22/1987 | US4695565 Antibacterial 7β-heterocyclic-cephem |
| 09/15/1987 | US4694001 β-lactam compound and a pharmaceutical composition containing the same |
| 09/01/1987 | USH328 Purification of cephalosporins |
| 07/22/1987 | EP0229369A2 Cephalosporins, process for their preparation and pharmaceutical compositions containing them |
| 07/14/1987 | US4680408 Acyl derivatives |
| 07/07/1987 | US4678781 Bactericidal antibiotics |
| 06/16/1987 | EP0225634A2 Antibacterial compounds, their production and use |
| 06/09/1987 | CA1222745A1 PROCESS FOR THE PREPARATION OF .beta.-LACTAM COMPOUNDS |