| 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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| 06/01/1983 | EP0080284A1 Derivatives of clavulanic acid, processes for their preparation and their use |
| 05/04/1983 | EP0078026A2 Antibiotic synthesis |
| 05/03/1983 | US4382084 Oxapenicillins; synergistic with penicillins and cephalosporins; enzyme inhibitors; enzymes/hydrolases/ |
| 04/13/1983 | EP0076369A1 Beta-lactam compounds |
| 04/12/1983 | CA1144540A1 6-AMIDINOPENICILLANIC ACID DERIVATIVES INCLUDING THE RADICAL OF A .beta.-LACTAMASE INHIBITOR AND PROCESS FOR PREPARING THE SAME |
| 02/08/1983 | US4372962 Clavulanic acid derivatives their preparation and use |
| 02/08/1983 | US4372946 Clavulanic acid derivatives their preparation and use |
| 01/18/1983 | US4369312 Method of producing oxo-containing azetidinone compounds |
| 01/11/1983 | US4368156 Preparation of 4-haloazetidin-2-ones from 4-sulfinoazetidin-2-ones |
| 01/05/1983 | EP0068715A1 Beta-lactam antibacterial agents, their preparation and use |
| 01/05/1983 | EP0068617A1 Derivatives of clavulanic acid, a process for their preparation and their use |
| 01/05/1983 | EP0068609A1 Derivatives of clavulanic acid, a process for their preparation and their use |
| 01/04/1983 | US4367175 Pure potassium salt of clavulanic acid |
| 12/22/1982 | EP0067518A1 Modified beta-lactam compounds |
| 12/14/1982 | CA1137479A1 Clavulanic acid derivatives, preparation and use |
| 11/16/1982 | US4359473 And b-lactamase inhibitors |
| 10/19/1982 | US4354974 Clavudienes |
| 10/13/1982 | EP0062407A1 Therapeutic compounds containing beta-lactams |
| 09/29/1982 | EP0061253A2 Process for the transfer of genetic material into actinomycete cells, prepared cells and method of culturing these cells and isolating a metabolite |
| 09/28/1982 | CA1132548A1 Derivatives of clavulanic acid, a process for their preparation and their use |
| 09/15/1982 | EP0060120A1 Process for preparing 4-haloazetidin-2-ones |
| 08/31/1982 | US4347183 Reacting a 4-substituted azedidin-2-one with an acid halide; reacting the product with a trialkyl phosphite |
| 08/25/1982 | EP0058317A1 Process for the preparation of 2-penem compounds |
| 08/24/1982 | CA1130294A1 Clavulanic acid derivatives, their preparation and use |
| 08/11/1982 | EP0057664A2 Clavam derivatives |
| 08/10/1982 | US4343807 Beta-lactamase inhibitors, bactericides, antibiotics |
| 08/10/1982 | US4343806 Benzylamino clavulanates and their production |
| 08/03/1982 | US4342772 β-Lactam compounds, antibacterial compositions thereof and method of use |
| 08/03/1982 | US4342749 Clavulanic acid derivatives a process for their preparation and their use in pharmaceutical compositions |
| 06/30/1982 | EP0055137A2 Method for concentrating beta-lactam antibiotic solution |
| 06/30/1982 | EP0055062A1 Compounds containing beta-lactams |
| 06/29/1982 | CA1126733A1 Process for the preparation of thioether derivatives of deoxyclavulanic acid |
| 06/16/1982 | EP0053893A1 Derivatives of clavulanic acid, their preparation and their use |
| 06/15/1982 | CA1125758A1 Clavulanic acid derivatives their preparation and use |
| 05/05/1982 | EP0050932A1 Therapeutic compounds containing beta-lactams |
| 04/20/1982 | US4325960 6-Amidinopenicillanic acid derivatives including the radical of a β-lactamase inhibitor |
| 04/13/1982 | CA1121821A1 .beta.-LACTAM CONTAINING COMPOUNDS, THEIR PREPARATION AND USE |
| 02/24/1982 | EP0046349A1 Clavulanic acid derivatives, their preparation and use |
| 02/09/1982 | US4314941 B-lactamase inhibitors, synergists for penicillins and cephalosporins |
| 02/02/1982 | CA1117532A1 Derivatives of clavulanic acid, their preparation and use |
| 01/19/1982 | CA1116603A1 PROCESS FOR THE PREPARATION OF .beta.-LACTAM COMPOUNDS |
| 01/13/1982 | EP0043546A2 7-Oxo-cephalosporins and 6-oxo-penicillins, their analogues and process for their preparation |
| 12/23/1981 | EP0042220A1 Process for the preparation of beta-lactam antibiotics |
| 12/01/1981 | US4303665 Methylaminodeoxy-clavulanic acid derivatives, their production and use |
| 11/17/1981 | US4301168 Tetrahydropyridyl derivatives of clavulanic acid, a process for their preparation and their use |
| 10/27/1981 | US4297345 Deoxy- and isodeoxyclavulanic acid symergistic with penicillin and cephalosporin anditiotics |
| 10/06/1981 | US4293555 6- and 6,6-Disubstituted-2-substituted-oxapen-2-em-3-carboxylic acids |
| 09/22/1981 | US4290949 Esters of 2-vinylclav-2-em-3-carboxylic acid and process for preparing same |
| 08/25/1981 | CA1107739A1 .beta.-LACTAM COMPOUNDS |
| 08/11/1981 | US4283531 Hydroxyalkylation |
| 07/21/1981 | CA1105467A1 .beta.-LACTAM COMPOUNDS, PREPARATION AND USE |
| 06/23/1981 | US4275067 Fungicide and b-lactamase inhibitors |
| 06/09/1981 | US4272439 6-(Substituted-hydroxymethylene penams) |
| 06/09/1981 | CA1102810A1 .beta.-LACTAM ANTIBACTERIAL AGENTS |
| 05/26/1981 | US4269773 Fused oxazolidine compounds |
| 05/06/1981 | EP0028083A1 Derivatives of clavulanic acid, a process for their preparation and pharmaceutical compositions containing them |
| 04/22/1981 | EP0027324A1 Derivatives of clavulanic acid, processes for their preparation and pharmaceutical compositions containing them |
| 04/22/1981 | EP0027323A1 Derivatives of clavulanic acid, processes for their preparation and pharmaceutical compositions containing them |
| 04/01/1981 | EP0026044A1 Amine salt of clavulanic acid, its preparation and use |
| 03/24/1981 | US4258050 Antibacterial agents |
| 03/18/1981 | EP0025287A1 Clavulanic acid derivatives, their preparation, pharmaceutical compositions containing them and their preparation |
| 03/18/1981 | EP0025271A1 Derivatives of clavulanic acid, their preparation and pharmaceutical compositions containing them |
| 03/17/1981 | US4256638 Chemical condensation of the corresponding diene derivative with a secondary amine; hydrogenolysis to form the acid |
| 03/17/1981 | CA1097654A1 Process for the preparation of ethers of clavulanic acid |
| 03/17/1981 | CA1097653A1 Process for the preparation of clavulanic acid esters |
| 03/10/1981 | US4255332 Process for the preparation of potassium clavulanate from lithium clavulanate |
| 03/04/1981 | EP0024372A1 Derivatives of clavulanic acid, their preparation and pharmaceutical compositions containing them |
| 02/25/1981 | EP0024123A1 Process for the preparation of derivatives of clavulanic acid |
| 01/27/1981 | CA1094563A1 Clavulanic acid derivatives |
| 01/13/1981 | US4244965 Azetidinoyl ethers |
| 01/07/1981 | EP0021836A1 Clavulanic acid derivatives, process for their preparation and pharmaceutical compositions containing them |
| 12/30/1980 | US4242262 Enhancement of penicillins and cephalosporins |
| 11/26/1980 | EP0019457A2 Clavulanic acid derivatives, their preparation and pharmaceutical compositions |
| 11/26/1980 | EP0019148A1 Antibiotic suppressing the growth of microorganisms and its manufacture by fermentation |
| 11/11/1980 | CA1089471A1 THERAPEUTIC COMPOUNDS CONTAINING .beta.-LACTAMS |
| 11/04/1980 | US4232005 Antibacterial agents |
| 10/29/1980 | EP0018305A1 Oxapenem derivatives, their preparation, their use, pharmaceutical compositions containing them, diverse initial compounds and their preparation |
| 10/29/1980 | EP0018203A1 Clavulanic acid derivatives, their preparation and use in pharmaceutical compositions |
| 10/28/1980 | US4230622 Halogen derivatives of clavulaic acid |
| 10/14/1980 | US4228174 Clavulanic acid ethers |
| 10/14/1980 | US4228074 B-lactamase enzyme inhibitors chemical intermediates |
| 08/06/1980 | EP0013790A1 Clavulanic acid derivatives, their preparation and pharmaceutical compositions containing them |
| 07/29/1980 | US4215128 Clavulanic acid derivatives their preparation and use |
| 07/15/1980 | CA1081699A1 Clavulanic acid derivatives |
| 06/17/1980 | US4208325 Preparation of 1-oxapenicillins and 4-acyloxy azetidinone intermediates therefor |
| 06/17/1980 | CA1079736A1 Crystalline calcium di-clavulanate dihydrate |
| 06/10/1980 | US4207323 6-Substituted methyl penicillins, derivatives and analogues thereof |
| 06/03/1980 | US4206120 Oxaazabicycloheptane antibiotics |
| 05/13/1980 | US4202819 2-(3-Alanyl)clavam antibiotic |
| 04/30/1980 | EP0010369A1 Clavulanic acid derivatives, processes for their preparation and pharmaceutical compositions containing them |
| 04/30/1980 | EP0010358A1 Beta-lactam compounds, processes for their preparation, compositions containing them, intermediates of use in their preparation and methods for the production thereof |
| 04/02/1980 | EP0009302A1 Clavulanic acid derivatives and process for their preparation |
| 04/01/1980 | CA1074802A1 Deoxyclavulanic acid, salts and esters |
| 03/19/1980 | EP0008899A1 Clavulanic acid derivatives, their preparation and pharmaceutical compositions containing them |
| 03/19/1980 | EP0008884A1 Derivatives of clavulanic acid, a process for their preparation and their compositions |
| 03/19/1980 | EP0008877A1 Derivatives of clavulanic acid, a process for their preparation and their use |
| 02/26/1980 | CA1072471A1 Clavulanic acid antibiotic from streptomyces jumonjinensis |
| 02/12/1980 | CA1071638A1 Process for the preparation of sodium and potassium salts of clavulanic acid |
| 02/06/1980 | EP0007717A1 Clavulanic acid derivatives, a process for their preparation, their use, and pharmaceutical compositions containing them |
| 02/05/1980 | US4187228 Antibacterial agents 5R, 2S-hydroxymethyl-3Z (2-hydroxy- or 2-alkoxyethylidene-1-aza-4-oxabicyclo[3,2,0]heptanone |