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)
12/1999
12/07/1999US5998610 Silylation of 7-aminodeacetoxycephalosporanic acid in presence of an ester solvent
12/01/1999EP0960945A2 Enzymatic process for producing beta-lactam antibiotics involving product recovery at pH 1 in the presence of immobilized penicillin amidase
12/01/1999CN1237181A Cephalosporin crystals and process for producing same
11/1999
11/18/1999WO1999058535A1 Novel cephalosporin compounds, processes for preparation thereof and antimicrobial compositions containing the same
11/18/1999CA2328965A1 Novel cephalosporin compounds, processes for preparation thereof and antimicrobial compositions containing the same
11/17/1999CN1046524C Cephalosporin derivatives
11/16/1999US5986091 Process for preparation of β-lactam compounds
11/16/1999CA2011116C Lyophilized bmy-28142 dihydrochloride for parenteral use
11/10/1999CN1046286C Novel cephem derivative
11/09/1999US5981519 Useful for treatment and prophylaxis of infectious diseases, especially those caused by methicillin resistant staphylococcus aureus and pseudomonas aeruginosa
11/04/1999WO1999055711A1 Treatment of mastitis
11/04/1999WO1999055710A1 A METHOD FOR CRYSTALLIZING A β-LACTAM ANTIBIOTIC
11/04/1999WO1999055709A1 PREPARATION OF β-LACTAM ANTIBIOTICS IN THE PRESENCE OF UREA OR AMIDE
11/04/1999DE19907521A1 New crystalline form of (R,S)-cefuroxime axetil
11/04/1999CA2330428A1 Treatment of mastitis
11/03/1999EP0953570A1 Fluorinated cephalosporin antibiotics and their use for the treatment of mastitis
11/03/1999EP0953569A1 Preparation of beta-lactam antibiotics in the presence of urea or amide
11/03/1999CN1234036A Crystalline substance of cefditoren pivoxyl and prodn. of same
11/02/1999US5977381 Process for making 3-amino-pyrolidine derivatives
11/02/1999US5977352 Process for preparing 3-norcephem compounds
10/1999
10/28/1999WO1999034832A8 Crystallographically stable amorphous cephalosporin compositions and process for producing the same
10/21/1999WO1999052913A1 Process for producing cephem compounds
10/21/1999WO1999052912A1 PROCESS FOR PRODUCING HALOGENATED β-LACTAM COMPOUND
10/21/1999WO1999052530A1 Antibacterial agents
10/21/1999CA2325718A1 Antimicrobial agent
10/20/1999EP0950327A1 Method and apparatus for registering a portable messaging unit in a communication system
10/19/1999US5969131 Or precursors; chemical intermediates
10/19/1999US5968335 Electrolytic oxidation of a 3-thiomethylcephem derivative in presence of lower alcohol to form the 3-alkoxymethylcephem derivative as chemical intermediate for synthesis of cefpodoxime proxetil antibiotic; simplification, efficiency
10/14/1999WO1999051607A2 Process for purification of a cephalosporin derivative
10/13/1999EP0949262A1 Cephem compounds
10/13/1999EP0948491A1 Aminothiazole derivatives useful in the preparation of beta-lactam antibiotics
10/13/1999EP0540609B1 Cephalosporins and homologues, preparations and pharmaceutical compositions
10/07/1999WO1999050271A1 Novel process for the fermentative production of cephalosporin
10/06/1999EP0946568A1 Use of 7-alkylidene cephalosporins to inhibit elastase activity
10/06/1999EP0623622B1 Process for producing cephem compound
10/06/1999CN1045444C Preparation of beta-lactam compounds and intermediates therefor
09/1999
09/30/1999WO1999048896A1 Cephalosporines having cyclic aminoguanidine substituents as antibiotics
09/29/1999CN1045297C Method for acylation of 7-amino group of cephalosporanic ring
09/28/1999US5958914 For the treatment of bacterial infectious diseases
09/22/1999CN1229077A Process for preparation of 3-amino-pyrrolidine derivatives
09/21/1999US5955604 Substrates for β-lactamase and uses thereof
09/15/1999EP0941095A1 Improved pharmaceutical compositions
09/07/1999US5948774 Cephem compounds, their production and use
09/01/1999CN1227488A Improved method for preparing potassim clavulanate
08/1999
08/31/1999US5945532 Method for manufacture of cephalosporin and intermediates thereof
08/31/1999US5945414 Process for the preparation of new intermediates useful in the synthesis of cephalosporins
08/25/1999EP0937727A1 Soluble crystalline cefuroxime axetil
08/25/1999EP0937725A2 Method for removing the protecting group for hydroxy group
08/25/1999EP0937083A1 A crystalline substance of cefditoren pivoxyl and the production of the same
08/19/1999WO1999041275A1 Prodrugs
08/19/1999CA2318978A1 Prodrugs
08/18/1999CN1226250A Solvent extraction of 3-hydroxymethylcephalosporins
08/17/1999CA2021299C Enzymatic oxidation of ceph c to glutaryl-7-amino cephalosporanic acid
08/11/1999EP0934944A1 7-bromo- and 7,7-dibromo-cepham and cephem derivatives and their use as protease inhibitors
08/10/1999US5936083 Bactericides
08/10/1999US5935950 Cephalosporin pyridinium derivatives
08/10/1999CA1340697C Substituted vinyl cephalosporins
08/04/1999CN1224722A 7-bromo- and 7,7-dibromo-cepham and cephem derivatives
07/1999
07/28/1999CN1223859A Process for preparation of pharmaceutical composition
07/27/1999US5929233 Cyclization for preparing halo-cephems
07/21/1999CN1044246C Bicyclic beta-lactam/p-hydroxy benzoate complexes
07/20/1999US5925632 Derivatives of 3-pyrrolidylidene-2-one-cephalsporines
07/20/1999CA1340672C Cephalosporin derivatives
07/15/1999WO1999035149A1 Process for the preparation of cefpodoxime proxetil diastereoisomers
07/15/1999WO1999034832A1 Crystallographically stable amorphous cephalosporin compositions and process for producing the same
07/14/1999EP0928787A1 Process for the preparation of 3-amino-pyrrolidine derivatives
07/14/1999CN1222905A New synthetic catechol derivatives, method for production and use thereof
07/13/1999US5922907 A chemical intermediate phenylglycyl hydroxyethyl ester or 4-phenylglycyl hydroxyethyl ester
07/13/1999US5922861 Hydrolysis of tertiary butyl ester by reacting with compound selected from tetrahalogenides of titanium, tin and tellerium
07/12/1999CA2258166A1 Process for the preparation of 3-amino-pyrrolidine derivatives
07/08/1999WO1999033994A1 Modified deacetoxycephalosporin c synthase (daocs) and x-ray structure
07/08/1999WO1999033839A1 Cephem derivatives and a method for producing the compounds and an antibacterial composition containing the compounds
07/08/1999WO1999033837A1 PROCESS FOR THE PREPARATION OF α-OXOLACTAMS
07/08/1999CA2316401A1 Modified deacetoxycephalosporin c synthase (daocs) and x-ray structure
07/06/1999US5919939 Chemical intermediate
07/06/1999US5919925 2-isocephem and oxacephem derivatives and use as antibacterial agents
07/06/1999US5919924 Process for preparing 3-halogenated cephem derivative
07/06/1999CA1340638C Cephalosporin derivatives
07/01/1999WO1999032497A1 Phosphonocephem derivatives, process for the preparation of the same, and use thereof
07/01/1999WO1999032113A1 Application of enzyme prodrugs as anti-infective agents
07/01/1999CA2315201A1 Application of enzyme prodrugs as anti-infective agents
06/1999
06/30/1999CA2256002A1 7-bromo- and 7,7-dibromo-cepham and cephem derivatives
06/29/1999US5917032 Acetyl donor and dicyclohexylamine activator or catalyst.
06/24/1999WO1999031110A1 Cephalosporin antibiotics
06/24/1999WO1999031109A1 COMPLEXES OF ss-LACTAM ANTIBIOTICS AND 1-NAPHTHOL
06/24/1999CA2314139A1 Cephalosporin antibiotics
06/22/1999CA1340609C Cephalosporin derivatives
06/22/1999CA1340604C Process for the preparation of 7-[2-(2-aminothiazol-4-y1)-2-hydroxyiminoacetamido]-3-cephem compounds
06/16/1999EP0922705A1 Fluorinated Cephalosporin antibiotics for treatment of mastitis
06/16/1999CN1219841A DNA-binding indole derivatives, their prodrugs and immunoconjugates as anticancer agents
06/10/1999WO1999028308A1 Antibiotics and process for preparation
06/09/1999EP0920527A1 SYNTHESIS OF beta-LACTAM ANTIBACTERIALS USING SOLUBLE SIDE CHAIN ESTERS AND ENZYME ACYLASE
06/08/1999CA1340583C 3-unsaturated alkyl cephems from 3-triflyl cephems
06/02/1999EP0918778A1 Solvent extraction of 3-hydroxymethylcephalosporins
06/02/1999EP0918752A2 Dna-binding indole derivatives, their prodrugs and immunoconjugates as anticancer agents
06/02/1999EP0918520A1 Process for preparing potassium clavulanate
06/01/1999US5908929 Reacting a-phenyl glycine with an acid chloride; condensation with a alkyl guanidine salt; hydrolysis
05/1999
05/26/1999EP0639195B1 2-acyloxycephem derivatives as elastase inhibitors
05/20/1999WO1999024441A1 Crystallization of beta-lactam compounds
05/18/1999US5905144 Preparing synergistic anti-hiv drugs by linking nucleoside compound like ribavirin to zidovudine, 2',3'-dideoxyinosine, or 3'-dioxy-2',3'-didehydrothymidine with diacid chloride forming diester compound
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