Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
Patents for C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom (6,868)
12/1993
12/15/1993EP0573608A1 Conformationally restricted mimetics of beta turns and beta bulges and peptides containing the same
12/08/1993CN1079224A Antibiotic compounds
12/08/1993CN1023016C Process for preparing diastereomeric 5R, 6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids
12/08/1993CN1023015C Process for preparation of penems
11/1993
11/30/1993US5266691 Processes for making cephems from allenylazetidinone derivatives
11/25/1993WO1993023380A1 Bridged aza-bicyclic derivatives as substance p antagonists
11/25/1993WO1993023373A1 N-[N'-(5-AMINO-4-HYDROXY-ACYLOYL)-α-AMINOACYLOYL] SUBSTITUTED HETEROCYCLES AND THEIR USE AS ANTIVIRAL AGENTS
11/25/1993CA2133583A1 Antiviral peptides
11/24/1993CN1022829C Synthesis for beta-lactams with the aid of metal compound
11/09/1993US5260438 With fluorine compound
11/03/1993EP0567949A1 Method for removing the protecting group for hydroxy group
11/03/1993EP0567828A2 Benzylenol ethers and their use as plant-protective agents
11/02/1993US5258362 Enzyme inhibitors, amides with oxetane ring
11/02/1993CA1323878C Process for synthesis of azetidine and novel intermediates therefor
10/1993
10/31/1993CA2094359A1 Benzyl enol ethers and their use as crop protection agents
10/26/1993US5256679 Pesticides
10/26/1993US5256630 Safening mixtures of sulfonylurea and acetanilide herbicides
10/26/1993US5256626 Herbicidal compositions safened by 5-heterocyclic-substituted oxazolidine dihaloacetamides compounds
10/26/1993US5256625 Imidazolinone derivatives
10/19/1993US5254681 Hydrolysis; condensation; acidification; cyclization; acylation
10/19/1993US5254258 Complexing; decomplexing; liquid chromatography; beta-blocker drugs
10/13/1993EP0564788A2 Sulfonylbenzyl substituted imidazopyridines as AII-antagonists
10/13/1993CN1077195A Sulphonylbenzyl-substituted imidazopyridines
10/06/1993EP0564129A2 Process for the preparation of 3-substituted-2-azetidinones
10/06/1993EP0563878A2 Process for producing 4-substituted azetidinone derivatives
10/05/1993US5250683 Anticarcinogenic agents
10/05/1993US5250677 Anticoagulants
10/05/1993US5250676 Reacting a 1-protected azetidione with a salt having a nucleophilic base and a conjugate acid with a specific dissociation constant; stereoselective
10/05/1993US5250525 Intermediates for beta-lactamic antibiotics
09/1993
09/24/1993CA2091977A1 Process for the preparation of 3-substituted-2-azetidinones
09/21/1993US5246940 Substituted n-biphenylyl lactams
09/16/1993WO1993017997A1 METHOD FOR PREPARING β-PHENYLISOSERINE AND ANALOGUES THEREOF
09/07/1993CA1322006C 2-oxo-1-{[(substituted sulfonyl)amino] -carbonyl}azetidines
08/1993
08/31/1993US5241064 Enzymatic process for preparing optically active 3-substituted azetidinones
08/28/1993CA2090279A1 Sulphonylbenzyl-substituted imidazopyridines
08/24/1993US5239069 Amino protecting group
08/24/1993US5239068 Cephalosporins
08/19/1993WO1993016043A1 β-LACTAM COMPOUND AND CEPHEM COMPOUND, AND PRODUCTION THEREOF
08/18/1993CN1075315A Method for semi-synthesis of taxalkane derivative with metal alkane oxide and beta-lactam
08/17/1993US5237073 Derivatives and precursors of captopril and its analogues
08/10/1993CA1321197C 2,3-dihydro-1h-phenalene-2-amino compounds as anti-psychotic drugs
08/05/1993WO1993015078A1 Carbapenems containing a carboxy substituted phenyl group, processes for their preparation, intermediates and use as antibiotics
08/03/1993CA1320956C Catalytic preparation of cyanoalkyl lactams
08/03/1993CA1320955C Preparation of primary aralkyl urethanes and ureas and isocyanates derived therefrom
07/1993
07/27/1993US5231179 Heterocyclic compounds and their production
07/21/1993EP0552041A2 Enzymatic processes for resolution of enantiomeric mixtures of compounds useful as intermediates in the preparation of taxanes
07/21/1993CN1074438A Antithrombotic agents
07/20/1993US5229510 Enzyme inhibitors
07/20/1993US5229381 Substituted azetidinones as anti-inflammatory and antidegenerative agents
07/16/1993CA2434312A1 Enzymatic processes for resolution of enantiomeric mixtures of compounds useful as intermediates in the preparation of taxanes
07/16/1993CA2087359A1 Enzymatic processes for resolution of enantiomeric mixtures of compoundsuseful as intermediates in the preparation of taxanes
07/13/1993CA1320209C 3-(substituted succinimide) azetidinones as chiral intermediates
07/08/1993WO1993013142A1 Azetidinol reaction products
07/08/1993WO1993013064A1 Process for producing 4-substituted azetidinone derivative
07/08/1993WO1993013063A1 Polyazetidinol containing materials
07/06/1993US5225570 5-heterocyclic-substituted oxazolidine dihaloacetamides
07/06/1993US5225553 Antibiotic intermediates
06/1993
06/29/1993CA1319697C2 Enantioselective process for producing 1-.beta.-methylcarbapenem antibiotic intermediates
06/23/1993CN1073442A Method for preparing 3S,4R-N-oxalyl-3-ethyl-4-|1R-oxo-3S-thiolanylthio (thiocarbonyl)-thio¨-2-azetidinones
06/21/1993CA2058223A1 Process for preparing beta-lactams
06/16/1993EP0546742A1 4-(1,1-Dialkoxycarbonyl-alkyl)azetidin-2-one-derivatives and synthesis of 4-(1-carboxy-alkyl)azetidin-2-one derivatives therefrom
06/10/1993WO1993006111A3 A chiral selector useful for separation of enantiomers of beta-amino alcohol compounds
06/02/1993EP0544475A1 Process for the synthesis of 3-phenoxy-1-azetidinecarboxamides
06/01/1993US5215997 Synthesis of beta-lactam compounds
05/1993
05/27/1993CA2083440A1 Urea fusion process for the synthesis of 3-phenoxy-1-azetidinecarboxamides
05/25/1993US5214046 Substituted aminoalkoxybenzene anti-fungicidal compositions and use
05/19/1993EP0542554A1 Substituted N-biphenylyl lactams
05/19/1993EP0542525A2 Antithrombotic agents
05/19/1993CN1072172A Novel t-substituted-9-substituted amino-6-demethyl-6-deoxytetracyclines
05/18/1993US5212185 Piperidinyl-terminated alkylamino ethynyl alanine amino diol compounds for treatment of hypertension
05/14/1993CA2082787A1 Substituted n-biphenylyl lactams
05/13/1993CA2082748A1 Antithrombotic agents
05/12/1993EP0540609A1 Cephalosporins and homologues, preparations and pharmaceutical compositions
05/12/1993EP0540606A1 Cephalosporins and homologues, preparations and pharmaceutical compositions
05/04/1993CA1317302C N-1 substituted .beta.-lactams as antibiotics
04/1993
04/29/1993WO1993008192A1 Azabicyclo arylacetylene and arylenyne oximes as cholinergic agents and methods of treatment
04/20/1993US5204461 Using a sulfenamide having a nitrogen-containing ring and triphenylphosphine to effect lactamization
04/20/1993US5204460 Ruthenium catalyzed process for preparing 4-acetoxyazetidinones
04/14/1993EP0536515A1 Novel 7-substituted-9-substituted amino-6-demethyl-6-deoxytetracyclines
04/13/1993US5202459 Reacting cyclobutane lactam with nucleophilic reagent in solvent
04/13/1993US5202433 For racemic mixtures
04/13/1993US5202344 N-substituted lactams useful as cholecystokinin antagonists
04/06/1993US5199968 Plant growth regulators containing oxalic acid derivatives
04/01/1993WO1993006111A2 A chiral selector useful for separation of enantiomers of beta-amino alcohol compounds
03/1993
03/31/1993EP0534709A1 Substituted taxanes as antitumour agents
03/24/1993WO1993006079A1 PREPARATION OF SUBSTITUTED ISOSERINE ESTERS USING METAL ALKOXIDES AND β-LACTAMS
03/24/1993EP0533265A1 Process of making substituted azetidinones
03/23/1993US5196528 4-cyclohexenyl azetidinones and epoxy derivatives thereof
03/21/1993CA2078360A1 Process of making substituted azetidinones useful as anti-inflammatory and antidegenerative agents
03/15/1993EP0594608A4 Chiral catalysts for enantioselective synthesis.
03/10/1993EP0530198A1 Heterocyclic compounds as aldose reductase inhibitors
03/04/1993WO1993004040A1 Azacyclic compounds, processes for their preparation and pharmaceutical compositions containing them
03/04/1993WO1993003725A1 5-ht4 receptor antagonists
03/04/1993CA2116024A1 5-ht4 receptor antagonists
03/04/1993CA2112397A1 Azacyclic compounds, processes for their preparation and pharmaceutical compositions containing them
03/03/1993EP0529702A1 Dihydropyridine derivatives, their preparation and their use
03/03/1993EP0529081A1 HALOGENATED $g(b)-LACTAM COMPOUND AND PRODUCTION OF 3-HYDROXYCEPHEM DERIVATIVE THEREFROM
03/02/1993US5191076 Penicillin intermediates
03/02/1993US5191075 Preparation of penicillins
03/02/1993US5191074 β-lactam compounds and production process thereof
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