| Patents for C07D 503 - Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxapenicillins, clavulanic acid derivatives; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (648) |
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| 12/12/1979 | EP0005914A1 Chemical process for the preparation of beta-lactamase inhibitors, and so obtained compounds |
| 12/12/1979 | EP0005889A1 Process for the preparation of beta-lactam derivatives, the novel derivatives so obtainable and pharmaceutical compositions containing them |
| 10/31/1979 | EP0005014A1 Clavulanic acid derivatives, preparation and compositions |
| 10/30/1979 | US4172895 6-(1'-Hydroxyethyl)-2-aminoethylthio-oxapen-2-em-3-carboxylic acid |
| 10/09/1979 | CA1064039A1 .beta.-LACTAMASE INHIBITORS AND PROCESS FOR THEIR PREPARATION |
| 10/09/1979 | CA1064020A1 .beta.-LACTAM ANTIBIOTICS AND PROCESSES FOR THEIR PREPARATION AND USE |
| 09/11/1979 | US4167630 Process for epimerizing beta-lactam antibiotic compounds, and related products |
| 09/04/1979 | US4166904 Oxapenicillins |
| 08/08/1979 | EP0003415A2 Beta-Lactam compounds, processes for their preparation,compositions containing them and intermediates of use in their preparation |
| 08/08/1979 | EP0003254A1 Derivatives of clavulanic acid, process for their preparation and compositions containing them |
| 07/24/1979 | CA1059050A1 Clavulanic acid from streptomyces clavuligerus |
| 07/03/1979 | US4159984 Metal and proton donor |
| 06/13/1979 | EP0002370A1 A process for the preparation of ether derivatives of clavulanic acid |
| 06/13/1979 | EP0002320A1 Process for the preparation of clavulanic acid derivatives and compounds used as intermediates therein |
| 06/13/1979 | EP0002319A1 Clavulanic acid derivatives, a process for their preparation and compositions containing them |
| 06/13/1979 | EP0002312A1 Derivatives of clavulanic acid and pharmaceutical compositions containing them |
| 05/01/1979 | CA1053681A1 Antibacterial azetidinone derivatives |
| 04/18/1979 | EP0001516A1 Beta-Lactam compounds, processes for their preparation, pharmaceutical compositions containing them and intermediates of use in their preparation |
| 04/04/1979 | EP0001333A1 Clavulanic acid derivatives, their preparation and pharmaceutical compositions containing them |
| 04/03/1979 | US4147693 βLactam antibiotics and process for their use |
| 03/20/1979 | US4145430 Beta-lactam compounds, preparation and use |
| 02/21/1979 | EP0000804A1 Process for the preparation of ethers of clavulanic acid |
| 02/20/1979 | US4140764 β-Lactamase inhibitors and process for their preparation |
| 02/07/1979 | EP0000615A1 Beta-lactam compounds, preparation and use in pharmaceutical compositions and as chemical intermediates |
| 02/06/1979 | US4138403 Antiseptics and disinfectants, enzyme inhibitors |
| 01/02/1979 | US4132712 B-lactamase inhibitors |
| 10/31/1978 | US4123540 Isoclavulanic acid as an antibacterial and a β-lactamase inhibitor |
| 10/31/1978 | US4123528 Antibiotics |
| 10/31/1978 | CA1041523A1 Preparation of 1-oxapenicillins and novel intermediates therefor |
| 08/29/1978 | US4110165 Process for the production of clavulanic acid |
| 07/04/1978 | US4098897 Anti bacterial agents |
| 06/06/1978 | US4093626 β-Lactam antibiotics |
| 05/09/1978 | US4088656 Bactericides, beta-lactamase inhibitors |
| 03/14/1978 | US4079177 Clavulanic acid carbamates |
| 03/07/1978 | US4078068 3-(β-Aminoethylidene)-6-(α-hydroxyethyl)-7-oxo-4-oxaazabicyclo[3.]heptane-2-carboxylic acid and derivatives thereof |
| 03/07/1978 | US4078067 Antibiotics |
| 02/28/1978 | US4076826 3-(.beta.-Hydroxyethylidene)-6-(α-Hydroxyethyl)-7-oxo-4-oxaazabicyclo[3.2.0]heptene-2-carboxylic acid and derivatives thereof |
| 02/07/1978 | US4072569 Preparation of clavulanic using Streptomyces jumonjinensis |
| 01/31/1978 | US4071512 Preparation of 1-oxapenicillins and intermediates therefor |
| 12/06/1977 | US4061649 Clavulanic acid sulphates |
| 11/29/1977 | US4060530 Clavulanic acid amides |
| 09/27/1977 | US4051132 Process for epimerizing beta-lactam antibiotic compounds by means of an acid quench |
| 09/13/1977 | US4048186 Antibacterial substituted azetidinones |
| 07/19/1977 | US4036969 2,12-Dioxo-7-hydroxymethyl-9-phenyl-1-aza-5,8,11-trioxotetracyclo[9.2.0.06,13 0.6.9 ]tridecane |
| 04/19/1977 | US4018782 1-oxapenicillins, antibiotics |
| 10/12/1976 | US3985764 Production of fused oxazoline azetidinones |
| 04/13/1976 | US3950352 2,2-Dimethyl-3R-carboxy-6S-phenyl(or phenoxy)acetamido-1-oxa-4-aza-5R-bicyclo[3,2,0]heptan-7-one and processes for their production |
| 04/06/1976 | US3948927 Antibiotic intermediate |