Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Patents for C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574)
03/1983
03/16/1983EP0074316A2 A process for the preparation of 3-substituted 7-aminocephalosporanic acids
03/16/1983EP0074268A2 Improvements in or relating to thieno and furopyridinium-substituted cephalosporin derivatives
03/15/1983US4376767 Pyridylmethyl esters of selected bio-affecting carboxylic acids
03/15/1983CA1142919A1 Cephalosporin antibiotic
03/15/1983CA1142918A1 Tri-py-ceph combo
03/09/1983EP0073559A2 Process for preparing desacetoxycephalosporanic acid
03/08/1983US4376203 Novel 3-acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives
03/08/1983US4376200 Heterocyclic thiomethylation of the 3-position of 7-aminocephalosporanic acids
03/01/1983US4375397 Process for preparing 3-methylene cephalosporins
03/01/1983CA1142173A1 Crystalline 3-hydroxycephalosporin solvates
02/1983
02/23/1983EP0072757A1 Cephalosporin derivatives and their preparation
02/23/1983EP0072756A1 Cephalosporin derivatives and process for their preparation
02/23/1983EP0072755A1 Cephalosporin derivatives, their preparation and pharmaceutical compositions containing them
02/23/1983EP0072608A2 Process for the preparation of cephalosporin derivatives
02/22/1983US4374983 (6r,7r)-7-amino-3-(1-pyridiniummethyl)ceph-3-em-4-carboxylic acid monoperchlorate
02/22/1983US4374982 Cepham compounds
02/16/1983EP0072090A2 Process for purifying cephalosporin compounds
02/16/1983EP0071891A2 New cephem compounds and processes for preparation thereof
02/15/1983US4374134 Cephalosporin compounds with terminal aminocarboxylic acid groupings and anti-bacterial use thereof
02/15/1983CA1141373A1 Acyl derivatives
02/09/1983EP0071395A1 Beta-lactam antibacterial agents
02/09/1983EP0071370A2 Cephalosporin derivatives, process for their preparation and pharmaceutical compositions containing them
02/08/1983US4372952 Cephem compounds
02/08/1983CA1140915A1 Process for the preparation of (substituted)-2-carbamoyloxymethylpenam and (substituted)-3-carbamolyoxycepham
02/01/1983US4371531 Oxime-substituted antibiotics
01/1983
01/26/1983EP0070803A2 Antibiotically active aminotriazolylcephalosporin derivatives and their preparation
01/26/1983EP0070706A2 Cephalosporin compounds
01/26/1983EP0070331A2 Cephalosporin derivatives, their preparation, compositions containing them, and their use in the treatment of diseases
01/25/1983US4370478 Oxacephalosporins
01/25/1983US4370327 Cephalosporins and pharmaceutical compositions
01/25/1983US4370326 Thiazole-substituted
01/25/1983CA1140114A1 Cephalosporin derivatives, process for preparation thereof and drugs containing said derivatives usable as antibiotics
01/25/1983CA1140113A1 Process for the preparation of novel quaternary ammonium radical 0-substituted oximes derived from 7-amino thiazolylacetamido cephalosporanic acid
01/25/1983CA1140112A1 Broad spectrum cephalosporin antibiotics
01/19/1983EP0070013A1 Oral absorption enhancement of carboxylic acid pharmaceuticals using (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl ester group
01/19/1983EP0069872A2 New cephem compounds and processes for preparation thereof
01/18/1983US4369315 Oxacephalosporins
01/18/1983US4369314 Oxacephalosporins
01/18/1983US4369313 Intermediates for use in the preparation of cephalosporin antibiotics
01/18/1983US4369312 Method of producing oxo-containing azetidinone compounds
01/18/1983CA1139744A1 Process for producing 7-(substitued)amino -3-substituted thiomethyl-.delta.3-cephem-4- carboxylic acids
01/11/1983US4368325 Processes for preparing 3-cephem compounds
01/11/1983US4368198 Cephalosporins
01/05/1983EP0068403A2 Cephalosporin compound
01/04/1983US4367228 Bactericides
12/1982
12/28/1982US4366315 Process for preparing 3'bromo-desacetoxycephalosporanic acid sulfoxide compounds
12/28/1982US4366153 Cephem compounds
12/21/1982US4365062 Cephalosporin derivatives
12/21/1982US4364944 Bactericidal antibiotics
12/21/1982US4364943 Cephalosporins
12/21/1982CA1137976A1 Substituted-imidazolidinyl-3-chloro-3- cephem-4-carboxylic acids
12/14/1982US4363807 Cepham compounds
12/14/1982CA1137492A2 Thiazolylacetic acid compounds
12/07/1982US4362725 Antibiotics
12/07/1982US4362721 Bactericides
12/01/1982EP0065748A1 Process for the preparation of a cephalosporin derivative
12/01/1982EP0065745A2 Syn-isomers of 7-substituted-3-cephem-4-carboxylic acid esters, and a process for production thereof
11/1982
11/30/1982US4361560 Antibiotic cephalosporins
11/30/1982CA1136616A1 Cephalosporin antibiotics
11/30/1982CA1136615A1 7.alpha.-METHOXYCEPHALOSPORINS AND PROCESS FOR PRODUCING THE SAME
11/24/1982EP0065270A2 Process for the preparation of 7-(2-amino-2-phenylacetamido)cephem derivatives and their use for the preparation of antibacterial agents
11/23/1982CA1136132A1 Cyclization to form cephem ring and intermediates therefor
11/23/1982CA1136123A1 Production of 7-(2-aminomethylphenylacetamido) -3-(1-carboxymethyltetrazol-5-ylthiomethyl) -3-cephem-4-carboxylic acid
11/17/1982EP0064740A2 Cephalosporin derivatives, and process for their preparation
11/17/1982EP0064582A1 Starting compounds for preparing cephem compounds and processes for their preparation
11/17/1982EP0013663B1 Process for removing an allylic group from allylic esters, carbonates and carbamates
11/16/1982CA1135687A1 .beta.-LACTAM ANTIBIOTICS, THEIR PRODUCTION, AND THEIR MEDICINAL USE
11/10/1982EP0064256A2 Cephalosporin derivatives and process for their preparation
11/09/1982US4358588 Process for preparing cephalosporanic acid compounds
11/09/1982US4358448 N-substituted thiazolyl derivatives of oxy-imino-substituted cephalosporins useful as anti-bacterial agents
11/09/1982US4358447 7-N-Heterocyclyl cephalosporins
11/09/1982CA1135256A2 Cephalosporin esters
11/09/1982CA1135255A1 Cephalosporin esters
11/09/1982CA1135254A2 Cephalosporin esters
11/02/1982US4357470 Cephalosporin compounds
11/02/1982US4357331 7αMethoxycephalosporin derivatives
11/02/1982CA1134816A1 7.alpha.-METHOXYCEPHALOSPORIN DERIVATIVE AND PROCESS FOR PRODUCING THE SAME
10/1982
10/26/1982CA1134348A1 Process for the manufacture of cephem compounds
10/20/1982EP0063027A2 Process for the preparation of imidazoledicarboxylic acid derivatives of cephalosporins
10/19/1982US4355160 Antibiotics, bactericides
10/19/1982CA1133903A1 Cephalosporin analogs
10/19/1982CA1133895A1 7-substituted-ureido 3-carbamoyloxymethylcephalosporins antibiotics
10/13/1982EP0062328A2 Novel penicillin and cephalosporin compounds, a process for preparing the same and antibacterial composition containing the novel compounds
10/13/1982EP0062321A2 New cephem compounds, processes for their preparation, pharmaceutical compositions containing them and their starting compounds
10/12/1982US4354023 Cefadroxil acetylcysteinate salt
10/12/1982US4354022 Process for preparing 3-methylenecepham compounds or a salt thereof
10/12/1982US4353824 Chromophoric cephalosporins
10/12/1982CA1133471A1 Cephapirin salts with amino acids
10/12/1982CA1133470A1 Cephapirine esters, salts thereof and processes for producing the same
10/12/1982CA1133469A1 .beta.-LACTAM SERIES COMPOUND
10/12/1982CA1133468A1 Process for preparation of penicillin and cephalosporin imino halides
10/05/1982US4352801 Cephem derivatives and antibacterial agents comprising said compounds
10/05/1982CA1133007A1 Halogenating reagents
10/05/1982CA1132978A1 Cephem derivatives and process for their manufacture
09/1982
09/29/1982EP0061234A2 Cephalosporin derivatives, process for their preparation and pharmaceutical preparations containing them
09/29/1982EP0061162A2 Cephalosporin derivatives, pharmaceutical compositions containing the same and production thereof
09/28/1982US4351947 Tetrazole derivative
09/28/1982CA1132597A1 Method of stabilization of novel halogenation compounds
09/28/1982CA1132547A2 Cyclization to form cephem ring and intermediates therefor
09/28/1982CA1132538A2 Cephalosporin antibiotics
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