Patents
Patents for C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom (6,868)
02/1993
02/24/1993EP0528495A1 Azacyclic compounds, processes for their preparation and pharmaceutical compositions containing them
02/23/1993US5189158 Acid mediated ring closure
02/17/1993CN1069028A Asymmetric synthesis of taxol side chain
02/17/1993CN1069024A Substituted beta-lactam compounds useful as hypocholesterolemic agents and processes for preparation thereof
02/10/1993CN1068815A Substituted azetidinones as anti-inflammatory and antidegenerative agents
02/04/1993WO1993002048A1 Substituted beta-lactam compounds useful as hypocholesterolemic agents and processes for the preparation thereof
02/03/1993WO1993003013A1 Indoline derivatives having an amide function, their preparation, and pharmaceutical compositions containing them
02/03/1993EP0526348A1 Indoline derivatives carrying an amide function, their preparation and pharmaceutical compositions containing them
02/03/1993EP0525973A2 Substituted azetidinones as anti-inflammatory and antidegenerative agents
02/03/1993EP0525589A1 Asymmetric synthesis of taxol side chain
02/02/1993US5183903 Heating together 3-phenoxyazetidine derivative and urea in the absence of a solvent
02/02/1993US5183902 Muscle relaxants
02/02/1993CA1313380C2 .beta.-lactams and their production
02/01/1993CA2071160A1 Asymmetric synthesis of taxol side chain
01/1993
01/27/1993EP0524595A1 Substituted beta-lactam compounds useful as hypocholesterolemic agents and processes for the preparation thereof
01/26/1993US5182288 Substituted n-biphenylyl lactams
01/20/1993EP0523904A1 Process for preparing azetidin-2-one derivatives
01/20/1993CN1068108A Azetidinone derivatives useful in preparation of carbapenem antibiotics
01/07/1993WO1993000332A1 Substituted azetidinones as anti-inflammatory and antidegenerative agents
01/07/1993EP0521203A1 Improved process for recovering organic vapors from air
01/07/1993EP0521018A1 Process for preparing penem esters
12/1992
12/30/1992EP0520336A2 Aldehyde derivatives and their use as calpain inhibitors
12/30/1992EP0520292A1 Chiral azetidinone derivatives and their use as dopants in liquid crystalline mixtures
12/30/1992CN1067429A 4-substituted alkyl carbapenem antibiotics
12/29/1992US5175315 Reacting with alcohol in presence of altivating agent
12/29/1992US5175311 Method of enantioselective cyclopropanation using chiral catalysts
12/29/1992US5175283 Azetidin-2-one derivatives as serine protease inhibitors
12/26/1992CA2072215A1 New substituted azetidinones as anti-inflammatory and antidegenerative agents
12/23/1992WO1992022313A1 Renin inhibiting compounds
12/10/1992WO1992013878A3 Conformationally restricted mimetics of beta turns and beta bulges and peptides containing the same
12/08/1992US5169945 Reacting imide with secondary amine to form amide which protects amine during nucleophilic reactions
12/02/1992EP0516486A2 Azetidinone derivatives useful in the preparation of carbapenem antibiotics
12/02/1992EP0516050A2 Methods and compositions for using non-ionic contrast agents to reduce the risk of clot formation in diagnostic procedures
12/02/1992CN1066656A Amino acid azelidinyl substituted pyridone derivatives, their preparation and their application as medications
12/01/1992CA2070002A1 Azetidinone derivatives useful in the preparation of carbapenem antibiotics
11/1992
11/26/1992WO1992020689A1 Antibacterial penem derivatives
11/24/1992US5166361 Methods for preparing captopril and its analogues
11/24/1992CA1310644C .beta.-AMINO-.beta.-PROPIOLACTAM DERIVATIVE AND MOISTURE CURABLE POLYURETHANE COMPOSITION THEREOF
11/19/1992EP0514268A1 Substituted amino acid azetidinyl pyridone derivatives, their preparation and use as medicines
11/17/1992US5164385 Azetidine derivatives and hypotensive compositions thereof
11/17/1992US5163992 Oxalic acid derivatives and plant growth regulators containing them
11/17/1992CA2068853A1 Substituted carboxy amino azetidinyl pyridone derivatives; process for preparing the same and their use as drugs
11/17/1992CA1310323C Process and preparing cis-1-carba(1-dethia)cephalosporins and intermediates therefor
11/11/1992EP0512901A1 Aminated polycyclic compounds and their enantiomers, process for their preparation and pharmaceutical compositions containing them
11/10/1992US5162524 Processes for making cephems from allenylazetidinone derivatives
11/10/1992US5162523 Cephalosporin antibacterial compounds
10/1992
10/29/1992WO1992018477A1 Azabicycloheptanone
10/28/1992CN1018824B Process for preparing 4,4-dialkyl-2-azetidinones
10/27/1992US5159077 Penam antibacterial compounds
10/27/1992US5159073 Intermediates to 1-carbacephalosporins and process for preparation thereof
10/21/1992EP0509821A1 Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives
10/20/1992CA1309098C Dihydropyridine derivatives, their preparation and their use
10/20/1992CA1309097C 2-oxo-1-[[(substituted sulfonyl) amino]- carbonyl]azetidines
10/13/1992US5155236 Pyran derivatives
10/07/1992CN1065061A 4-substituted azetidinodes as precursors to 2-substituted-2-carboxy carbapenem antibiotics and method of producing them
10/06/1992US5153315 Intermediates for β-lactam compounds
10/01/1992WO1992016532A1 HALOGENATED β-LACTAM COMPOUND AND PRODUCTION OF 3-HYDROXYCEPHEM DERIVATIVE THEREFROM
09/1992
09/29/1992US5151418 Method of treating muscular tension, muscle spasticity and anxiety with 3-aryloxy and 3-arylthioazetidinecarboxamides
09/29/1992CA1308107C Monosulfactams
09/23/1992EP0505097A2 New substituted azetidinones as anti-inflammatory and antidegenerative agents
09/23/1992EP0505095A2 New substituted azetidinones as anti-inflammatory and antidegenerative agents
09/23/1992EP0504612A2 Novel 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them
09/22/1992US5149838 Intermediates for substituted azetidinones useful as anti-inflammatory and antidegenerative agents
09/22/1992US5149802 Process for producing azetidinone derivatives
09/21/1992CA2063326A1 Novel 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them
09/21/1992CA2062886A1 Substituted azetidinones as anti-inflammatory and antidegenerative agents
09/21/1992CA2062885A1 Substituted azetidinones as anti-inflammatory and anti-degenerative agents
09/16/1992EP0503604A2 Allenyl beta-lactam compounds and process for preparing same
09/08/1992US5145957 Carbapenicillin intermediates
08/1992
08/26/1992EP0500171A2 Improved process for the preparation of chiral 4-aryloxyazetidinones
08/26/1992EP0500081A2 Azetidinone derivatives and method for producing azetidinone and cephalosporin derivatives
08/26/1992CN1017991B Process for preparing 4-acetyloxy-3-hydroxyethyl azacyclo-butan-2-one derivatives
08/25/1992US5142039 β-lactam antibiotics
08/20/1992WO1992013878A2 Conformationally restricted mimetics of beta turns and beta bulges and peptides containing the same
08/20/1992WO1992013837A1 A process for the preparation of 3-acylamino-4-carbamoyloxymethyl-2-azetidinone-1-sulphonic acids and intermediates for the preparation thereof
08/20/1992CA2103577A1 Conformationally restricted mimetics of beta turns and beta bulges and peptides containing the same
08/19/1992EP0499232A2 4-Oxo-azetidine-2-sulfonic acids and their salts, processes for the preparation thereof and their use
08/19/1992EP0499196A1 Intermediates and process for preparing carbapenem derivatives
08/19/1992CN1017897B Dihydropyridine derivatives, their preparation and their use
08/12/1992EP0432204A4 Derivatives and precursors of captopril and its analogues
08/11/1992US5138050 6-amido-1-methyl carbapenems
08/11/1992US5138048 Bactericide
08/11/1992US5137886 Insecticidal compounds
07/1992
07/28/1992US5134231 Chemical intermediates for 1-alkylcarbapenem compounds
07/21/1992US5132419 Process for the preparation of 7-amino-3-((z)-1-propen-1yl)-3-cephem-4-carboxylic acid
07/14/1992US5130309 Aryloxy and aryloxyalklazetidines as antiarrhythmic and anticonvulsant agents
07/14/1992US5130241 Clavam derivatives and its enzymatic preparation
06/1992
06/30/1992US5126447 Process for preparation of β-lactam derivative from an alkenyl substituted β-lactam derivative using a ruthenium or rhenium catalyst and a periodic acid
06/17/1992EP0257063B1 Compositions comprising 1-substituted azacycloalkanes and their uses
06/16/1992US5122604 β-lactam compounds
06/12/1992WO1992010476A1 N-substituted lactams useful as cholecystokinin antagonists
06/12/1992CA2097517A1 N-substituted lactams useful as cholecystokinin antagonists
06/09/1992US5120860 Dehydrating hydroxyalkylamines with non-zeolitic molecular sieves containing alkali or alkaline earth metals
06/09/1992US5120729 Beta-lactams as antihypercholesterolemics
06/08/1992WO1992010474A1 3-[2-chloro-4-(trifluoromethyl)phenoxy]-1-azetidine carboxamides having anticonvulsant activity
06/08/1992CA2097835A1 3-[2-chloro-4-(trifluoromethyl)phenoxy]- 1-azetidine carboxamides having anticonvulsant activity
06/03/1992EP0488611A1 Process for producing 4-acetoxyazetidinones
06/03/1992CN1061599A Novel diketene imine derivative and process for preparing same
06/03/1992CN1016871B Process for the preparation of tricyclische pyridinderivate and their use
06/02/1992CA1302426C Carbapenem intermediates
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