| 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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| 06/03/1987 | EP0224385A2 Intermediates for the preparation of beta-lactam antibiotics |
| 05/20/1987 | EP0222022A1 Process for producing beta-lactam derivatives |
| 05/12/1987 | US4665066 Bactericides |
| 05/12/1987 | US4665065 Bactericides |
| 04/28/1987 | US4661480 Antibiotics |
| 04/21/1987 | US4659814 Salts of amino-beta-lactamic acids and process for the preparation thereof |
| 03/31/1987 | CA1219866A1 Vinylthioacetamido oxacephalosporin derivatives |
| 03/25/1987 | EP0215435A1 2-Oxa-isocephem compounds, compositions containing same and processes for preparing same |
| 03/03/1987 | CA1218646A1 Deesterification to acids |
| 02/25/1987 | CN85105977A Process for manufacturing antibiotic compounds |
| 02/24/1987 | US4645769 1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same |
| 01/21/1987 | EP0209237A2 Vinyl-glycyl-amino-beta-lactam derivatives |
| 01/13/1987 | CA1216576A1 .beta.-LACTAM ANTIBACTERIAL AGENTS |
| 01/07/1987 | CN86102034A Method for preparing antibacterial compounds |
| 01/06/1987 | US4634697 Bactericide |
| 12/23/1986 | US4631275 1-Oxadethiacephalosporin derivatives and antibacterial use thereof |
| 12/03/1986 | EP0203271A2 Antibacterial compounds, their production and use |
| 11/20/1986 | WO1986006723A1 PROCESS FOR PRODUCING beta-LACTAM DERIVATIVES |
| 11/18/1986 | CA1214166A1 Cephalosporin analogs for oral use |
| 11/06/1986 | WO1986006376A1 Antibacterial compounds |
| 10/29/1986 | CN85105988A Process for the preparation of cephem compounds |
| 10/09/1986 | WO1986005787A1 Antibacterial compounds |
| 10/07/1986 | US4616084 Process for the preparation of 7-acylamino-3-hydroxy-cephem-4-carboxylic acids and 7-acylamino-3-hydroxy-1-dethia-1-oxacephem-4-carboxylic acids |
| 10/07/1986 | US4616081 Antibiotic, bactericide with good absortion and stability |
| 09/30/1986 | US4614797 Cephalosporin hydroxamic acids |
| 09/12/1986 | WO1986005184A1 Antibacterial compound |
| 09/12/1986 | WO1986005183A1 Antibacterial compounds, their production and use |
| 09/10/1986 | EP0193858A1 New 1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same |
| 09/02/1986 | US4609652 Methods of using β-lactam antibacterial agents |
| 08/19/1986 | CA1209997A1 Oxacephalosporin derivatives |
| 08/05/1986 | US4604460 1-oxadethiacepham compounds |
| 07/30/1986 | EP0188781A1 1-Oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same |
| 07/16/1986 | EP0187456A1 Cephalosporin derivatives |
| 07/02/1986 | EP0186463A2 Beta-lactam antibiotics |
| 06/03/1986 | US4593093 Acyl derivatives |
| 06/03/1986 | US4592865 Azetidinone intermediates for cephalosporin analogs |
| 06/03/1986 | CA1205465A1 Process for manufacture of cephalosporin derivatives |
| 05/28/1986 | EP0182633A2 Cephalosporin derivatives |
| 05/06/1986 | US4587053 Preparation of oxazolines |
| 04/16/1986 | EP0177897A2 Antibacterial 7beta-heterocyclic-cephem |
| 04/16/1986 | EP0177596A1 Beta-lactam derivatives, preparation, compositions containing them |
| 04/15/1986 | CA1203235A1 Process for the manufacture of cephalosporins |
| 03/25/1986 | US4578378 (Oxoheterocyclic carbonamido)cephem carboxylic acid derivatives |
| 02/11/1986 | US4570018 Fluorocyclopropanes |
| 02/11/1986 | US4569993 Bactericides |
| 01/08/1986 | EP0167011A2 Beta-lactam compounds, intermediates thereof, their use in preparing beta-lactams having a diketopiperazine group |
| 01/03/1986 | WO1986000071A1 Cephem compounds |
| 01/03/1986 | WO1986000070A1 Cephem compounds |
| 01/02/1986 | EP0166377A1 Process for the preparation of beta-lactam compounds and intermediates therefor |
| 12/19/1985 | WO1985005620A1 Cephem compounds |
| 12/18/1985 | EP0164944A1 Cephalosporin derivatives |
| 12/18/1985 | EP0164850A1 A novel process for the preparation of oxazolines |
| 12/11/1985 | EP0164122A2 Cephem compounds |
| 12/11/1985 | EP0164113A2 3-pyrazolo(1,5-a)pyridinium cephem compounds, their production and use |
| 12/03/1985 | US4556513 Diazo derivatives of azetidinones; ring closure |
| 11/26/1985 | US4555363 Treating an imine with a nucleophilic derivative of formamide |
| 11/26/1985 | CA1197233A1 Derivatives of cephalosporine, and their preparation |
| 11/07/1985 | WO1985004879A1 Cephem compounds |
| 11/07/1985 | WO1985004878A1 Beta-lactam derivatives, preparation, compositions containing them |
| 11/06/1985 | EP0160252A2 Antibacterial compounds |
| 10/15/1985 | US4547573 Process for preparing cephalosporin derivatives |
| 09/18/1985 | EP0154793A1 1-Oxadethiacephalosporin derivatives and processes for their preparation |
| 09/03/1985 | US4539149 β-Lactam antibacterial agents |
| 09/03/1985 | US4539148 Production of 1-oxacephams and intermediates |
| 08/20/1985 | CA1192193A1 Epimerization of malonic acid esters |
| 08/13/1985 | US4534898 1-Oxa-1-dethia-cephalosporin derivatives |
| 08/06/1985 | US4533730 Bactericides |
| 07/30/1985 | US4532233 Antibiotics |
| 07/16/1985 | US4529722 Oxacephalosporin derivatives |
| 07/16/1985 | US4529721 Vinylthioacetamido oxacephalosporin derivatives |
| 07/16/1985 | CA1190543A1 Process for the preparation of 3-substituted 7- aminocephalosporanic acids |
| 07/02/1985 | US4526962 Cephalosporin derivatives |
| 06/25/1985 | US4525355 7-β-Ureidoacetamido-oxacephalosporins |
| 05/07/1985 | US4515789 β-Lactam antibiotics |
| 05/07/1985 | US4515719 Decyclization and hydrogenation with metal and protonic acid |
| 04/30/1985 | US4514333 Bactericides |
| 04/10/1985 | EP0136721A2 Carboxyalkenamidocephalosporins |
| 03/27/1985 | EP0135088A1 7-Amino-3[1-pyridiniomethyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-en-2-carboxylates, process for their preparation and their use as intermediates in the synthesis of beta-lactam antibiotics |
| 03/12/1985 | US4504659 1-Oxadethiacepham compounds |
| 03/12/1985 | US4504658 Epimerization of malonic acid esters |
| 03/06/1985 | EP0133670A2 Process for the preparation of 7-acylamino-3-hydroxy-cephem-4-carboxylic acids and 7-acylamino-3-hydroxy-1-dethia-1-oxacephem-4-carboxylic acids |
| 03/05/1985 | US4503052 Oxacephalosporin antibiotics |
| 02/13/1985 | EP0132987A1 Improvements in or relating to deesterification to acids |
| 02/05/1985 | US4497949 Process for the manufacture of cephalosporin derivatives |
| 02/05/1985 | US4497811 1-Oxadethiacephalosporin compound and antibacterial agent containing the _same |
| 01/30/1985 | EP0132395A1 Improvements in or relating to the preparation of azetidinone sulfinic acids from cephalosporin sulfones |
| 01/29/1985 | US4496723 Process for the preparation of 7-amino-1-dethia-1-oxa-3-hydroxymethyl-cephem-4-carboxylic acids |
| 01/29/1985 | US4496560 Cephalosporin derivatives, and pharmaceutical compositions containing them |
| 01/23/1985 | EP0131611A1 $g(b)-LACTAM ANTIBACTERIAL AGENTS |
| 01/08/1985 | US4492692 Cephalosporin derivatives |
| 12/19/1984 | EP0128536A1 Fluoromethylthiooxacephalosporin derivatives |
| 12/12/1984 | EP0127992A2 Cephalosporin derivatives |
| 12/12/1984 | EP0127920A2 A process for preparing an alkylene compound starting from a fluorocyclopropane compound |
| 12/05/1984 | EP0127541A2 Salts of amino-beta-lactamic acids and process for the preparation thereof |
| 12/04/1984 | US4486426 Unsaturated cephalosporin derivatives |
| 12/04/1984 | CA1178946A1 .beta.-LACTAM ANTIBIOTICS, PROCESSES FOR THEIR PREPARATION AND AGENTS CONTAINING THEM |
| 11/13/1984 | CA1177824A1 Acyl derivatives |
| 11/06/1984 | US4481357 Reaction isoelectric ph regulator; |
| 10/30/1984 | CA1177067A1 METHOD FOR CONCENTRATING .beta.-LACTAM ANTIBIOTIC SOLUTION |
| 10/23/1984 | US4478997 1-Oxadethiacepham compounds |