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)
05/1990
05/02/1990EP0366189A2 Novel antimicrobial lactam-quinolones
05/01/1990US4921954 From sulfoxide intermediate
05/01/1990US4921953 Oral administration
05/01/1990US4921851 Cephem compounds, their production and use
05/01/1990US4921850 Gramnegative and grampositive bactericide
04/1990
04/25/1990CN1041593A Process for 1-carba (dethia) cephalosporins
04/24/1990CA2001204A1 Antimicrobial flurorquinolonyl cephems
04/24/1990CA1268171A1 ONE-POT PROCESS FOR PREPARATION OF 7.beta.-AMINO-AND 7.beta. -ACYLAMINO-3-SUBSTITUTED METHYL-3-CEPHEM-4- CARBOXYLIC ACID DERIVATIVES AND PROCESS FOR DEOXYGENATION OF 7.beta.-ACYLAMINO-3-CEPHEM-4- CARBOXYLIC ACID 1-OXIDE DERIVATIVES
04/18/1990EP0363826A2 Crystalline dihydrochloride of cephalosporin derivative and a method for preparation thereof
04/17/1990US4918070 Antibiotics
04/17/1990US4918068 Cephem compounds
04/11/1990EP0363223A2 3-Aryloxymethyl-cephalosporin derivatives, their preparation and their medical use
04/10/1990CA1267647A1 Cephalosporin derivatives
04/07/1990CA2000272A1 3-aryloxymethyl-cephalosporin derivatives, their preparation and their medical use
04/03/1990US4914091 Esters of cephalosporin derivitives
03/1990
03/28/1990EP0360298A2 Intermediate compounds for use in the synthesis of cephalosporin derivatives
03/27/1990US4912224 Carboxyalkenamidocephalosporins
03/27/1990US4912212 Cephem compounds
03/27/1990US4912211 Method for producing pure crystalline antibiotic products
03/27/1990CA1267138A1 PROCESS FOR THE PREPARATION OF .beta.-LACTAM COMPOUNDS
03/21/1990EP0359540A2 Process for 1-carba(dethia) cephalosporins
03/21/1990EP0359536A2 Cephalosporin compounds, process for their preparation and pharmaceutical compositions
03/21/1990EP0359291A1 Cephalosporin derivatives
03/20/1990US4910301 Cefepime cephalosporin salts
03/13/1990US4908444 Method of producing cephem compounds
03/13/1990US4908443 7-Beta-substituted 3-lower alkanoylacetoxy-methyl-7-alpha-methoxy-3-cephem-4-carboxylic acid
03/07/1990EP0357089A2 Novel cephem compound as an antimicrobial agent and its preparation
03/07/1990CN1040201A Method for producing cephem compounds
03/06/1990US4906748 Cephem derivative crystals
03/06/1990US4906623 3-Imidazolium cephalosporin derivatives
02/1990
02/28/1990EP0355821A2 A process for preparing cephem prodrug esters
02/27/1990US4904791 Cephalosporin derivatives
02/27/1990US4904776 Method for producing crystalline cefadroxil hemihydrate
02/27/1990US4904652 7-acylamino-3-substituted cephalosporanic acid derivatives
02/20/1990US4902793 Process for preparing 3-alkoxymethylcephalosporins
02/20/1990US4902683 Bactericides, antibiotics
02/14/1990EP0354757A2 Cephalosporins and homologous compounds, process for their preparation and pharmaceutical compositions containing them
02/14/1990EP0354576A2 Novel cephalosporin compounds and antibacterial agents
02/14/1990EP0354538A2 Method for producing cephem compounds
02/06/1990US4898938 Method for preparing crystalline cefadroxil monohydrate
02/06/1990US4898937 α-crystals of cefazolin sodium
02/06/1990US4898858 Cephalosporin derivatives and antibiotics containing the same
02/06/1990CA1265512A1 Cephalosporin antibiotics
02/06/1990CA1265511A1 Cephalosporins
01/1990
01/30/1990US4897270 Pharmaceutical compositions
01/17/1990EP0351121A2 Process for producing exomethylene cepham compounds
01/17/1990CN1038814A Cephem compounds and processes for preparation thereof
01/16/1990US4894371 3-substituted-aminomethyl cephalosporin derivatives
01/03/1990EP0349340A2 Novel cephem compound, method for producing the same and anti-bacterial agent
01/03/1990EP0349296A2 Process for the acylation of 7-aminocephalosporanic acid or its derivatives
01/02/1990US4891427 Bactericides
12/1989
12/27/1989EP0347777A2 Process for preparing cephalosporins and intermediates therefor
12/27/1989EP0347459A1 Cephalosporin compounds or their salts, process for their preparation, and pharmaceutical compositions
12/27/1989CA1264052A1 Antibacterial compounds
12/20/1989EP0346465A1 1-carboxy-1-vyniloxyiminoaminothiazole cephalosporing derivatives and process for their preparation
12/20/1989EP0174342B1 Brain-specific analogues of centrally acting amines
12/19/1989US4888429 Process for producing allyl aminothiazole acetate intermediates
12/19/1989US4888332 Antibiotics
12/19/1989US4888100 Ultraviolet radiation
12/13/1989EP0345671A2 Cephem compounds and processes for preparation thereof
12/13/1989CN1037902A Process for manufacturing of 7-/d(-)-alpha-amino-alpha-(p-hydroxyphenyl) acetamido/-3-(1,2,3-triazol-4(5)-thiomethyl-3-cephem-4-carboxylic acid 1,2-propylene glycolate and halogenated intermediate....
11/1989
11/29/1989EP0343926A2 A process for preparing 3-substituted methyl-3-cephem-4-carboxylic acid
11/29/1989EP0343277A1 A process for the production of 3-hydrocarbyl-3-cephems
11/28/1989US4883879 Cephalosporin compounds, processes for their preparation and antibacterial agents
11/28/1989US4883868 Effective against gramnegative bacteria
11/28/1989CA1263399A1 Process for the manufacture of aminothiazole acetic acid derivatives
11/23/1989EP0342252A1 3-allyl- and 3-butenyl-3-cephems and a process for the production thereof
11/21/1989US4882434 2- (4s)-4-acetamido-3-oxo-2-isoxazolidinyl!-5-oxo-2-tetra -hydrofurancarboxylic acid
11/16/1989WO1989010926A1 1,1-dioxo-cephem-4-carbothiolic acid derivatives
11/16/1989DE3914672A1 Chemisches verfahren Chemical methods
11/16/1989DE3914658A1 Chemisches verfahren Chemical methods
11/15/1989EP0341991A2 Method for recovery of antibiotics from mother liquors and novel pharmaceutically-acceptable salts thereof
11/15/1989EP0341990A2 Cephalosporins, process for their preparation and pharmaceutical compositions
11/15/1989EP0341948A2 Cephalosporins, process for their preparation and pharmaceutical compositions
11/15/1989EP0341910A2 Cephalosporins, process for their preparation, intermediates and pharmaceutical compositions
11/15/1989EP0341694A2 Method for production of 3-exomethylenecepham derivatives
11/15/1989CN1037151A Process for preparation of beta-lactam derivatives
11/14/1989US4880798 Antibiotics
11/14/1989US4880797 Thiazole derivatives
11/14/1989US4880796 Antimicrobial preparation
11/14/1989US4880795 Cephalosporins
11/08/1989CN1036958A Process for preparing acyl derivatives
11/07/1989US4879381 Antibiotics
11/02/1989EP0339465A2 Antibacterial composition for oral administration
11/01/1989CN1036770A Cephalosporins derivatives and process for preparation of same
11/01/1989CN1036769A Process for preparation of cephem derivatives and intermediates therefor
11/01/1989CN1036768A Method for preparation of 7-/d(-1)-alpha-amino-alpha-(p_hydroxy-phenyl)acetamido/-3-methyl-3-cephem-4-carboxylic acid monohydrate.
10/1989
10/31/1989US4877873 Bactericides
10/31/1989US4877783 β-lactam antibacterial agents
10/31/1989US4877782 Antibiotics
10/24/1989US4876351 Process for the separation of a mixture of "syn" and "anti" oxime isomers
10/18/1989EP0337704A2 Beta-lactam derivatives
10/17/1989US4874856 3-(substituted)propenyl-7-(aminothiazolylacetamido) ceph-3-em-4-carboxylic acids and esters thereof
10/17/1989CA1262345A1 3-propenyl cephalosporin solvates
10/11/1989EP0336705A2 Cephem compounds and a production method therefor
10/11/1989EP0336511A2 Method of protection of the carboxy groups in the chemistry of beta-lactam compounds
10/05/1989DE3901359A1 Cephalosporinsalze und injizierbare mittel Cephalosporinsalze and injectable medium
10/04/1989EP0335390A2 Novel cephalosporin compounds
10/04/1989EP0335297A2 Cephalosporin derivatives
10/03/1989US4871860 Syn-isomer of 3,7-disubstituted-3-cephem-4-caroxylic acid compounds and processes for the preparation thereof
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