| Patents for C07D 499 - Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (3,448) |
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| 07/23/1991 | CA1286661C 2,6-disubstituted penem compounds |
| 07/16/1991 | CA1286285C Stable hydrate of penicillin derivative and process for preparing same |
| 07/10/1991 | CN1052862A Extractent and process for extracting penisiuin without deemulsifier |
| 06/26/1991 | EP0433425A1 Process for penems |
| 06/25/1991 | CA1285275C Process for the synthesis of penems |
| 06/18/1991 | US5024998 Pharmaceutical formulations for parenteral use |
| 05/22/1991 | CN1051562A Novel compounds |
| 05/21/1991 | US5017566 Redox systems for brain-targeted drug delivery |
| 05/14/1991 | US5015736 Piperazine intermediates |
| 05/14/1991 | US5015473 Beta-lactamase inhibitors |
| 05/07/1991 | US5013729 Systemic Bactericides |
| 05/07/1991 | CA1283906C .beta.-LACTAM COMPOUNDS AND PRODUCTION THEREOF |
| 04/17/1991 | WO1991005788A1 Conversion of penicillins and cephalosporins to 1-(s)-sulfoxides |
| 04/17/1991 | CA2067745A1 Conversion of penicillins and cephalosporins to 1-(s)-sulfoxides |
| 04/16/1991 | CA1283120C Intermediates and improvements in the preparation of antibiotics |
| 04/16/1991 | CA1283097C 6-(-etherified oxyimino)acylamino penicillanic acid derivatives, their preparation and use |
| 04/10/1991 | EP0421752A2 Substituted acrylamido-penicillanic acid derivatives |
| 04/10/1991 | EP0421751A2 Substituted acrylamido-penicillanic acid esters |
| 04/09/1991 | US5006661 Selective stereospecific biologically active beta-lactams |
| 04/06/1991 | CA2026786A1 Compounds |
| 04/02/1991 | US5004738 For treating bacterial infections in mammals |
| 03/27/1991 | EP0418674A1 Pharmaceutical preparations for enhanced absorption of antibacterial compounds |
| 03/26/1991 | US5002935 Inclusion Complexing Hydroxypropylcyclodextrin with a Dihydropyridine-substituted Drug |
| 03/19/1991 | CA1281713C Process for preparing new penem compounds |
| 03/12/1991 | CA2024887A1 Pharmaceutical preparations |
| 03/12/1991 | CA1281319C 2.beta.-SUBSTITUTED THIOMETHYLPENICILLIN DERIVATIVES AND THEIR PREPARATION AND USE |
| 03/12/1991 | CA1281316C TETRAZOLYL DERIVATIVES OF .beta.-LACTAMS USEFUL AS ELASTASE INHIBITORS |
| 03/12/1991 | CA1281315C .beta.-LACTAM ANTIBIOTICS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS AND INMEDICAMENTS |
| 03/05/1991 | US4997829 Antibiotics |
| 02/27/1991 | CN1011788B Process for preparation of 6-(substituted) methylenepenicillanic acids and derivatives thereof |
| 02/26/1991 | US4996313 Penicillins |
| 02/21/1991 | WO1990011782A3 Immunoconjugates and prodrugs and their use in association for drug delivery |
| 02/19/1991 | CA1280408C .beta.-LACTAM ANTIBIOTICS, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS MEDICAMENTS |
| 02/12/1991 | US4992543 Penem derivatives |
| 01/30/1991 | EP0410727A1 Processes for removing allyl groups |
| 01/29/1991 | CA1279640C Process for the preparation of penems |
| 01/23/1991 | EP0409452A1 Pharmaceutical compositions containing a zinc complex |
| 01/23/1991 | EP0409081A1 Beta-Lactam Derivatives |
| 01/22/1991 | CA1279312C Process for penem intermediates |
| 01/09/1991 | EP0406790A1 Process for penems |
| 01/08/1991 | US4983586 Pharmaceutical formulations for parenteral use |
| 01/06/1991 | WO1991000283A1 Process for penems |
| 01/06/1991 | CA2035434A1 Process for penems |
| 01/03/1991 | DE4019960A1 Penam derivatives and their salts, process for their preparation and antibacterial composition with a content thereof |
| 01/02/1991 | EP0405316A2 1,1-dioxopenicillanoyloxymethyl D-6-[alpha(methyleneamino)-phenyl-acetamidol]-penicillanate and a process for the preparation thereof |
| 12/20/1990 | CA2019432A1 1,1-dioxopenicil-lanoyloxymethyl d-6-[ -(methyleneamino)phenylacetamido] penicillanate and a process for the preparation thereof |
| 12/18/1990 | CA1277977C Beta-lactam antibiotics |
| 12/12/1990 | EP0401929A2 Method of preparing N-oxotetrahydro- -carbolines |
| 12/08/1990 | CA2018253A1 Method of preparing n-oxo-tetrahydro-.beta.-carbolines |
| 12/05/1990 | EP0401049A2 Beta-lactam elastase inhibitors |
| 12/05/1990 | CN1047505A Process of preparing heterocyclic alpha-acrylic derivative penicillin |
| 12/05/1990 | CN1047504A Penicillanic acid derivatives |
| 12/04/1990 | CA1277313C Method for producing chemical compounds |
| 11/29/1990 | DE3917287A1 Prodn. of penem antibiotics |
| 11/28/1990 | EP0399228A1 Process for the preparation of penem compounds |
| 11/28/1990 | CN1047293A Composition and method for extracting penicillin |
| 11/27/1990 | US4973685 Heteroannellated phenylglycine-β-lactam antibiotics |
| 11/27/1990 | US4973684 Broad spectrum antibiotics |
| 11/14/1990 | EP0396901A1 Process for producing beta-lactamase inhibitor |
| 11/14/1990 | CN1046905A 6-(substituted) methylenepenicillanic and 6-(substituted) hydroxymethyl-penicillanic acids and derivatives thereof |
| 11/08/1990 | DE3914389A1 Prodn. of penem antibiotics - by reacting 4-acyl:thio-1- oxalyl-2-azetidinone cpds. with phosphonite di:ester |
| 11/06/1990 | CA1276014C 2-heterocyclylthio penems |
| 10/30/1990 | US4966899 Antibacterial lyophilized preparation of aspoxicillin |
| 10/29/1990 | CA2015580A1 Process for the preparation of penem compounds |
| 10/23/1990 | US4965358 Chemical intermediate for penicillins and cephalosporins |
| 10/23/1990 | US4965260 Penicillins |
| 10/23/1990 | CA1275405C Penem derivatives |
| 10/17/1990 | EP0392745A2 Immunoconjugates and prodrugs and their use in association for drug delivery |
| 10/09/1990 | US4962202 Mercapto-bicycloheterocyclics useful as intermediates for penem derivatives |
| 10/09/1990 | US4962196 (3S, 4R)-3,4-trans-disubstituted azetidin-2-one intermediates |
| 10/06/1990 | WO1990011782A2 Immunoconjugates and prodrugs and their use in association for drug delivery |
| 10/06/1990 | CA2030564A1 Immunoconjugates and prodrugs and their use in association for drug delivery |
| 10/03/1990 | CN1045789A Method for preparing 6-(substd.) methylenepenicillanic and 6-(substd.) hydroxymethyl-penicillanic aicds and derivs. thereof |
| 10/03/1990 | CN1045788A Process for preparing 6-(substd.) methylenepenicillanic and 6-(substd.) hydroxymethyl-penicillanic acids and derivs. thereof |
| 10/03/1990 | CN1045787A Method for preparing 6-(substd.) methylenepenicillanic and 6-(substd.) hydroxymethyl-penicillanic acids and derivs. thereof |
| 09/26/1990 | EP0389178A2 Acrylamido-penicillanic-acid derivatives |
| 09/26/1990 | EP0389176A2 Beta-lactams and processes for their preparation |
| 09/25/1990 | US4959495 Process for the preparation of intermediates used to produce aminothiazoloximino cephalosporins |
| 09/22/1990 | CA2012622A1 Compounds |
| 09/18/1990 | US4958020 Azabicycloheptane derivative, cyclization to form a 1,2,3-triazole ring |
| 09/18/1990 | CA2012372A1 Compounds |
| 09/12/1990 | EP0386940A1 6-Beta-(alpha-etherified oxymino)-acyl amino penicillins |
| 09/12/1990 | EP0385999A1 Application of 4- 1-oxoalkyl]-2,5-oxazolidinediones in selective stereospecific formation of biologically active beta-lactams. |
| 09/11/1990 | CA1273917A1 Penicillinic derivatives and method for their preparation |
| 09/05/1990 | EP0385489A1 Azacyclooctadiene compound and pharmaceutical use |
| 09/04/1990 | US4954647 Process for optically active 3-(methane-sulfonyloxy) thiolane and analogs |
| 09/04/1990 | US4954493 Enzyme inhibitors |
| 09/04/1990 | US4954489 Penicillins having a substituted acrylamido side chain |
| 09/04/1990 | CA1273630A1 Deprotection of allylic esters and ethers |
| 09/03/1990 | CA2010742A1 Azacyclooctadiene compound and pharmaceutical use |
| 08/28/1990 | US4952690 6-substituted thia-aza compounds |
| 08/28/1990 | US4952577 Antibiotics |
| 08/22/1990 | EP0382863A1 Process for the production of penicillanic acid compounds |
| 08/21/1990 | US4950484 Amphoteric beta-lactam antibiotic and cellulose disintegrants |
| 08/21/1990 | CA1273008A1 6-(substituted) methylenepenicillanic and 6- (substituted) hydroxymethylpenicillanic acids and derivatives thereof |
| 08/16/1990 | EP0382268A1 New amino carboxylic acid derivatives |
| 08/14/1990 | US4948885 Intermediates for antibacterial penems |
| 08/09/1990 | WO1990008764A1 Asymmetrical ureas, method for the preparation and utilization of the same |
| 08/07/1990 | CA1272483A1 Phenoxyalkylaminopyrimidine derivatives, their preparation and insecticidal and acaricidal compositions containing them |
| 08/07/1990 | CA1272479A1 Process for the preparation of penems thereby produced |