Patents
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Patents for C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom (6,868)
05/1981
05/26/1981US4269772 Prepared from the cyclization of a chlorinated aldoxime and an unsaturated ester; stereospecific
05/26/1981US4269771 Total synthesis of 7-oxo-4-thia-1-azabicyclo-[3,2,0]-heptane-2-carboxyl derivatives useful as β-lactamase inhibitors and antibacterial agents
05/26/1981CA1101864A1 Proline derivatives and related compounds
05/26/1981CA1101859A1 1-aryloxy-2-hydroxy-3-alkylensaminopropanes and processes for their production
05/12/1981US4267340 Disulfide substituted oxazetidine derivatives
05/12/1981US4267188 5-Substituted-1-carba-pen-2-em-3-carboxylic acid
04/1981
04/28/1981US4264621 5-Substituted-3-(2-aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
04/28/1981US4264597 Fungicides
04/28/1981US4264498 Process for the preparation of 1,3-disubstituted-2-azetidinones from triazines
04/15/1981EP0026817A1 Preparation of azetidin-2-ones suitable for the synthesis of thienamycin and azetidin-2-ones useful in a synthesis of that kind
04/15/1981EP0026816A1 Intermediates for the preparation of thienamycin and process for preparing intermediates
04/14/1981US4262010 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1,1-disubstituted-1-carbadethiapen-2-em-3-carboxylic acids
04/14/1981CA1099259A1 Polycyclic nitrogenous compounds
04/07/1981US4260743 Preparation of β-lactams and intermediates therefor
04/07/1981US4260627 1-, 6- And 2-substituted-1-carba-2-penem-3-carboxylic acids
04/07/1981US4260618 Antibiotics
04/07/1981US4260606 Antidepressants
04/01/1981EP0025880A1 Azetidine derivative, its production, the derivative for use as an anti-obesity agent
03/1981
03/31/1981US4259492 Stabilizers for plastics and elastomers
03/31/1981US4259235 Tricyclic nitrogenous compounds having string plant growth regulating properties
03/24/1981US4257947 3-Amino-2-hydroxy, halo or mercaptomethyl-4-oxoazetidines
03/17/1981US4256756 1-Aryloxy-2-hydroxy-3-[(substituted phenyl-donidazalidinon-2-yl)-alkyl-amino]-propanes and salts thereof
03/11/1981EP0024965A1 Fluorinated methyl beta-alanine derivatives, their preparation and pharmaceutical compositions containing them
03/10/1981US4255430 1-Aryloxy-2-hydroxy-3-[(tetrahydroquinolonylalkyl)-amino]-propanes and salts thereof
03/10/1981US4255330 Process for preparing 6-substituted amino-2-substituted-pen-2-em-3-carboxylic acid
03/10/1981US4255328 Sulfide intermediates for the manufacture of enol derivatives
02/1981
02/24/1981US4252808 β-Lactam antibacterial agents, their use in pharmaceutical compositions, the process for their preparation and intermediates for use in that process
02/17/1981CA1095908A1 Morpholine derivatives as antibacterial agents
02/11/1981EP0023887A2 3-Substituted bicyclic azetidinone derivatives, process for their preparation, and intermediates as well as their preparation
02/10/1981US4249933 N-ethyl-n-ethyl-bicyclo(2.2.1) hept-2-yl thiocarbamate and a haloacylamide as antagonist; pre- and postemergence herbicides
02/03/1981CA1095041A1 0-2-isocephem antibacterial agents and processes and intermediates for their production
02/03/1981CA1095026A2 Cyclization to form cephem ring and intermediates therefor
01/1981
01/28/1981EP0023097A1 De-arylmethylation of N-mono- or N-diarylmethyl-beta-lactams; novel azetizinones having anti-bacterial activity
01/27/1981CA1094557A1 3,3-dichloro-2-azetidinone derivatives having basic substituents
01/20/1981CA1094085A1 Azetidinone mercury sulfides and process therefor
01/13/1981US4244965 Azetidinoyl ethers
01/07/1981EP0021883A2 N-acyl-amino acid derivatives and pharmaceutical compositions containing them, intermediates and starting compounds
01/07/1981EP0021678A1 1-Sulpho-2-oxoazetidine derivatives, their production and pharmaceutical compositions thereof
01/07/1981EP0021676A1 3-Methoxy-2-oxoazetidine derivatives and their production
01/07/1981EP0020883A1 A process for preparing 3-beta-amino-4-beta-substituted 2-azetidinones and 3-(2,2-dihalogenovinyl)-imino-4-beta-substituted 2-azetidinone and 3-beta-(2,2-dihalogenovinyl)-amino-4-beta-substituted 2-azetidinone intermediates
01/06/1981US4243587 Process for 3β-aminoazetidin-2-ones
12/1980
12/30/1980US4242261 Production of methylene-cycloamines
12/23/1980US4241050 Penam 1,1-dioxides as beta-lactamase inhibitors
12/23/1980CA1092110A1 Antibacterial agents
12/09/1980CA1091230A1 7-acylamino-8-oxo-3-oxa-1-azabicyclo- ¬4.2.0|octane-2-carboxylic acid derivatives
12/02/1980US4237305 Substituted phenylacetic acid compounds and process for preparation thereof
11/1980
11/26/1980EP0019411A1 1-Phenyl-2-aminoethanol derivatives, processes for their manufacture and pharmaceutical compositions thereof
11/25/1980US4235920 Antibiotics
11/25/1980CA1090336A1 Cephalosporin analogues
11/25/1980CA1090290A1 5,6-dehydropenicillins, method of preparation and intermediates obtained thereby
11/18/1980US4234724 Cephalosporin analogues and processes for the preparation thereof
11/18/1980US4234596 3-(2-Aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
11/12/1980EP0018594A2 Process for the preparation of 3-(1-hydroxyethyl)-azetidinones
11/11/1980US4233216 Intermediates for oxadethiacephalosporins
11/11/1980CA1089476A2 Reductive cleavage of oxazolidine
11/04/1980US4232151 Antibiotics
11/04/1980US4232036 6-, 1- and 2-Substituted-1-carbadethiapen-2-em-3-carboxylic acids
10/1980
10/29/1980EP0018305A1 Oxapenem derivatives, their preparation, their use, pharmaceutical compositions containing them, diverse initial compounds and their preparation
10/29/1980EP0017992A1 2-Substituted-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids, processes for preparing them, antibiotic pharmaceutical compositions containing same and process for preparing intermediates
10/29/1980EP0017893A1 Process for the preparation of heterocyclic tertiary aralkyl amines
10/28/1980US4230619 Synthetic routes to azetidinones related to nocardicin
10/28/1980CA1088533A1 3,3-dichloro-2-azetidinone derivatives having antiinflammatory activity
10/28/1980CA1088518A1 Cyanomethylthioacetylcephalosporins
10/15/1980EP0017138A2 Analogous compounds of cephalosporins, processes for their preparation, and pharmaceutical composition containing them
10/14/1980US4228074 B-lactamase enzyme inhibitors chemical intermediates
10/07/1980US4226870 O-, N- and carboxyl derivatives of thienamycin
10/07/1980US4226866 Bactericides, acylation
10/07/1980US4226861 Anticonvulsants
10/07/1980US4226767 Intermediates for 3-aminoazetidin-2-ones
10/01/1980EP0016725A1 Process for the preparation of 3-hydroxycepham compounds
09/1980
09/30/1980US4225586 Antibiotic SB-72310
09/30/1980CA1086755A2 Process for the manufacture of 3-methylene-butyric acid derivatives
09/30/1980CA1086739A1 Mercury intermediates useful in the preparation of 2- alkoxy cephalosporins
09/23/1980US4224441 Antibiotics
09/23/1980US4224336 3-(2-Aminoethylthio)-6-amido-7-oxo-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid
09/16/1980US4223038 Bicyclic β-lactam antibiotics
09/09/1980CA1085392A1 Arylmalonamido-1-oxadethiacephalosporins
08/1980
08/19/1980US4218463 3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
08/19/1980US4218462 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1-substituted-1-carbade-thiapen-2-em-3-carboxylic acids
08/19/1980US4218459 6-Amido-1-carba-2-penem-3-carboxylic acid
08/19/1980US4218374 Penam derivatives
08/19/1980CA1084054A2 Process for the manufacture of 3-hydroxy-crotonic acid derivatives
08/12/1980US4217453 6-Amido-3-substituted-amino-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid
08/12/1980CA1083579A1 Proess for preparing sulfinyl chlorides from penicillin sulfoxides
08/12/1980CA1083577A1 Substitutes n-methylene derivatives of thienamycin
07/1980
07/29/1980US4215128 Clavulanic acid derivatives their preparation and use
07/29/1980US4215124 6 Substituted amino-2-substituted-pen-2-em-3-carboxylic acid
07/29/1980CA1082727A1 4-(d-3-amino-3-carboxypropoxy) phenylglyoxylic acid oxime derivatives, nocardicin side chain
07/23/1980EP0013662A1 2-Penem compounds, a method for their preparation and pharmaceutical compositions comprising them
07/15/1980US4212877 1-Aryloxy-2-hydroxy-3-[(benzimidazolin-one-substituted alkyl)-amino]-propanes and salts thereof
07/09/1980EP0013067A1 Bicyclic beta-lactam antibacterial agents, their use in pharmaceutical compositions, processes for their preparation and intermediates for use in such processes
07/01/1980US4210661 Thienamycins/and derivatives
07/01/1980CA1080713A2 Process for the manufacture of 3-substituted-hydroxy-crotonic and isocrotonic acid derivatives
07/01/1980CA1080695A1 Process for the manufacture of enol derivatives
06/1980
06/24/1980CA1080221A2 Method of preparation of 3-methylenecephams
06/17/1980US4208422 1-Substituted-pen-2-em-3-carboxylic acids
06/17/1980US4208325 Preparation of 1-oxapenicillins and 4-acyloxy azetidinone intermediates therefor
06/17/1980US4208202 Herbicides
06/10/1980US4207234 4-Unsubstituted azetidinone derivatives and process for preparation thereof
06/03/1980US4206219 Antibiotics
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