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)
02/1984
02/16/1984WO1984000547A1 Fluoralkylatedcarbapenem derivatives
02/14/1984US4431803 7-Epi 3-exomethylenecephams
02/14/1984US4431658 Aza penem compounds
02/14/1984US4431588 Penacillins
02/14/1984US4431587 Beta-lactam antibacterial agents
02/08/1984EP0100041A1 1-Sulfo-2-azetidinone derivatives, their production and use
02/07/1984CA1161853A1 N-lower-alkyl 3-phenoxy-1-azetidine-carboxamides
02/01/1984EP0099580A1 New 1-oxa-1-dethia-cephalosporin derivatives
01/1984
01/31/1984CA1161450A1 Fluorinated methyl beta-alanine derivatives
01/25/1984EP0099059A1 Antibacterial penem derivatives
01/24/1984US4427586 2-Oxoazetidine derivatives and production thereof
01/24/1984US4427581 Peptide, process for preparation thereof and use thereof
01/17/1984US4426532 α-(3-Cyano-propanoyl)-aminocarboxylic acid derivatives
01/17/1984US4426377 Clavulanic acid derivatives their preparation and use
01/04/1984EP0097352A2 Process for the preparation of azetidine sulfonic acids
01/03/1984US4424230 6-(1'-Hydroxyethyl)-3-substituted amino-1-azabicyclo- 3.2.0!hept-2-en-7-one-2-carboxylic acid
12/1983
12/27/1983US4423055 6-Substituted-hydrocarbon-2-(substituted-thio)penem-3-carboxylic acids
12/21/1983EP0096524A2 Bicyclic benzamides or anilides, process for their preparation, and pharmaceutical compositions containing them
12/21/1983EP0096297A2 Process for the preparation of 1-sulfo-2-oxoazetidine derivatives
12/21/1983EP0096296A2 1-Sulfo-2-oxoazetidine derivatives
12/20/1983US4421686 Antibiotic, bactericide
12/07/1983EP0095778A1 2-Oxo-1-azetidinesulfonic acid derivatives, process for production thereof, and use thereof
12/07/1983EP0095764A2 2-Oxoazetidinone derivatives, their production and use
11/1983
11/22/1983US4416817 3-Methoxy-2-oxoazetidine derivatives and their production
11/16/1983EP0093915A1 Novel beta-lactam derivatives
11/10/1983WO1983003827A1 4-cyano-2-azetidinone derivatives and process for their preparation
11/09/1983EP0093376A2 1-Sulfo-2-azetidinone derivatives, their production and use
11/08/1983US4414345 Polymers
11/08/1983US4414155 Synthesis of thienamycin via esters of (3SR, 4RS)-3-[(SR)-1-hydroxyethyl]-β,2-dioxo-4-azetidinebutanoic acid
11/02/1983EP0092722A1 Beta-lactam antibiotics, process for their preparation and their use as medicines
11/02/1983EP0092647A1 New active compounds in the treatment of ulcers and skin allergy symptoms
10/1983
10/25/1983US4411906 Penicillin antibacterial agents
10/19/1983EP0091576A2 7-Oxo-4-thia-1-azabicyclo(3,2,0)heptane derivatives
10/18/1983US4410458 Process for providing an oxidized penam
10/05/1983EP0090366A1 1-Azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid derivatives, processes for the preparation thereof and pharmaceutical compositions containing them
10/05/1983EP0090340A1 Process for preparation of optically active 4-(2-Hydroxyethyl)-2-azetidinone
10/04/1983US4407815 β-Lactam antibacterial compounds, their preparation and pharmaceutical compositions containing them
10/04/1983US4407750 Unsymmetrical azetidinone aldehyde disulfides and process
09/1983
09/27/1983US4406834 Antibiotics
09/21/1983EP0089139A2 Antibiotics, their preparation and use
09/20/1983US4405637 β-Lactam antibacterial agents
09/20/1983CA1212665B PREPARATION OF .beta.-LACTAM-CONTAINING ANTIBACTERIAL AGENTS AND .beta.-LACTAMASE INHIBITORS
09/20/1983CA1154010A1 PREPARATION OF .beta.-LACTAM-CONTAINING ANTIBACTERIAL AGENTS AND .beta.-LACTAMASE INHIBITORS
09/14/1983EP0088488A1 Antibacterial agents, their preparation and use
09/01/1983WO1983002942A1 Process for preparing 2-azetidinone-1-sulfonic acids, and starting materials therefor
08/1983
08/30/1983US4401595 4-Allyl azetidinone intermediate for β-lactam antibacterial agents
08/24/1983EP0086563A1 Antibacterial agents, their preparation and use
08/24/1983EP0086556A1 Process for preparing (3S)-3-(((2-amino-4-thiazolyl)((1-carboxy-1-methylethoxy)imino)-acetyl)amino)-2-oxo-1-azetidinesulfonic acid and 4-substituted derivatives
08/23/1983US4400323 3-[1-Hydroxyethyl]-4-carboxymethyl-azetidin-2-one
08/17/1983EP0085811A1 2-(Phenylmethylene)cycloalkylamines
08/16/1983CA1152085A1 Synthetic routes to azetidinones related to nocardicin
08/10/1983EP0085291A1 2-Oxo-1-(aminocarbonylaminosulfonylaminocarbonyl)azetidines
08/09/1983US4397861 Antibiotics
08/09/1983US4397784 Amino acid derivative antibiotics
08/04/1983WO1983002614A1 5,6-cis-carbapenem-3-carboxylic acid derivatives and process for their preparation
08/02/1983US4396775 Homoserine aldehyde derivatives for mugineic acids synthesis
07/1983
07/26/1983US4395418 6-hydroxyethyl substituted antibiotics
07/19/1983US4394313 Symmetrical azetidinone aldehyde disulfides and process
07/19/1983US4394156 Novel N-phenyl-substituted N-heterocyclic compounds, their preparation and use in agents for regulating plant growth
07/19/1983CA1150240A1 Process for 3-exomethylenecepham sulfoxides
07/12/1983CA1149804A1 1-phenyl-2-aminoethanol derivatives
07/06/1983EP0083039A1 4-Cyano-2-azetidinones and production thereof
07/05/1983US4391975 Process for 1-oxacephem derivatives
06/1983
06/29/1983EP0082656A2 Preparation of cepham derivatives
06/22/1983EP0082133A2 A process for preparing intermediates useful for preparing 2-substituted-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids
06/22/1983EP0082113A1 2-Aminobytyl-2-penem derivatives, process for their preparation and pharmaceutical compositions containing them
06/22/1983EP0081824A1 Processes for the production of antibiotic 1-oxadethiacephalosporins
06/14/1983CA1148143A1 TOTAL SYNTHESIS OF NOVEL AZETIDINONES, USEFUL AS .beta.-LACTAMASE INHIBITORS AND ANTIBACTERIAL AGENTS
06/08/1983EP0080942A1 Novel intermediates and process for preparing (S)-3-acylamino-4-substituted-2-azetidinones
06/01/1983EP0080162A1 2-(Fluoroalkylthio)substituted penems, processes for preparing them, and pharmaceutical compositions containing them
05/1983
05/31/1983US4386034 Sulfamated amino acid amides
05/24/1983US4385175 Esters of retinoic acid and azetidinone derivatives
05/24/1983US4384998 Decyclization, reaction with mercaptans, alcoholysis, catalytic hydrogenation, then cyclization
05/17/1983US4383946 Process for the preparation of 1-carbapenems and intermediates via silyl-substituted dithioacetals
05/17/1983US4383945 Thienamycin intermediates
05/10/1983US4382949 2-(Amino acid-thio)-1-carbapen-2-em-3-carboxylic acids and congeners
05/04/1983EP0078026A2 Antibiotic synthesis
04/1983
04/26/1983US4381309 1-Aryloxy-2-hydroxy-3-((heterocyclic-substituted alkyl)-amino)-propanes and salts thereof
04/26/1983CA1145347A1 2-azetidinone derivatives
04/19/1983CA1144924A2 Cyclization to form cephem ring and intermediates therefor
04/13/1983EP0076758A2 4-Ether derivatives of 2-azetidinone-1-sulfonic acids
04/13/1983EP0076621A2 Azetidinone derivatives
04/06/1983EP0075737A1 N-Chlorocarbonyl-amino-acid esters, process for their preparation and their use
04/05/1983US4379151 3-Phenoxyazetidines for anorexigenic activity
03/1983
03/31/1983WO1983001063A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
03/29/1983US4378315 Process for the preparation of thienamycin and intermediates
03/29/1983US4378314 For penicillins and cephalosporins
03/23/1983EP0074599A1 5,6-cis-Carbapenem derivatives, their production and use
03/22/1983US4377591 7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives, their use and preparation
03/17/1983WO1983000867A1 5,6-cis-carbapenem-3-carboxylic acid derivatives and process for their preparation
03/09/1983EP0073451A2 Carbapenam compound and processes for the preparation thereof
03/03/1983WO1983000690A1 Azetidine derivatives and process for their preparation
03/03/1983WO1983000689A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
03/02/1983EP0073100A1 Beta-lactam compounds, their preparation and their use
03/02/1983EP0073061A2 Optically uniform beta-lactams, their preparation and use in the preparation of antimicrobial beta-lactams, and starting compounds for use in their preparation
03/01/1983US4375477 Fluorinated methyl beta-alanine derivatives
02/1983
02/22/1983US4374849 Antibiotics
02/22/1983US4374844 Bactericides
02/16/1983EP0071908A1 1-, and 1,1-disubstituted-6-substituted-2-carbamimidoyl-1-carbadethiapen-2-em-3-carboxylic acids, a process for preparing and an antibiotic composition containing the same
02/15/1983US4374065 Penicillins, antibiotics
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