| Patents for C07D 205 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom (6,868) |
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| 05/02/1989 | CA1253501A1 Azetidinyl sulfonic acid and analogs |
| 05/02/1989 | CA1253500A1 Acylaminoalkanoyl urethanes or thiourethanes |
| 04/25/1989 | US4824840 Carbostyril derivatives and pharmaceutical preparations containing same |
| 04/25/1989 | CA1253159A1 4-hydroxymethyl-pyrrolidinones substituted in the one position, processes for preparing them, pharmaceutical compositions and intermediate products for preparing them, pharmaceutical compositions and intermediate products |
| 04/25/1989 | CA1253147A1 3-acylamino-1-sulfonylaminocarbonylmethoxy-2- azetidinones |
| 04/25/1989 | CA1253146A1 Azetidinones |
| 04/18/1989 | US4822895 3-aminoazetidine, its salts and intermediates of synthesis |
| 04/18/1989 | US4822790 Antimicrobiocides or beta-lactamase inhibitors |
| 04/18/1989 | US4822788 Microbiocides, beta-lactamase inhibitors |
| 04/11/1989 | US4820815 Useful as antibacterials or to form fused bicyclic b-lactam antibiotics like carbapenems |
| 04/11/1989 | CA1252471A1 Process for the preparation of azetidinones |
| 04/04/1989 | US4818757 Ureidoalkanoylaminocarbonyl amino and imino acids and esters |
| 04/04/1989 | CA1252096A1 Process and intermediates for the preparation of penem derivatives |
| 03/29/1989 | EP0308867A2 Alkenylsilylazetidinone intermediates for carbapenems |
| 03/29/1989 | EP0308416A1 N-1 substituted sulfonylaminocarbonyl, c-4 substituted monobactams |
| 03/28/1989 | US4816582 Bactericides, antibiotics |
| 03/28/1989 | US4816581 Antibiotics, chlorosulfonyl isocyanate |
| 03/28/1989 | US4816577 Process for producing 1-beta-methylcarbapenem antibiotic intermediates |
| 03/22/1989 | EP0308123A1 Crystalline antibiotic intermediate |
| 03/21/1989 | US4814442 6-hydroxyethyl-2-substituted thio-penem-3-carboxylates |
| 03/21/1989 | CA1251455A1 Process for the manufacture of optically uniform azetidinones |
| 03/21/1989 | CA1251454A1 PROCESS FOR THE MANUFACTURE OF .beta.-LACTAMES |
| 03/21/1989 | CA1251443A1 Process for preparing 1-dethia 2-thia cephalosporanic acid derivatives |
| 03/14/1989 | US4812581 Catalytic hydrogenolysis |
| 03/14/1989 | US4812564 Process for preparing 4,4-dialkyl-2-azetidinones utilizing a pyridine (or substituted pyridine) sulfur trioxide complex |
| 03/14/1989 | US4812563 Antibiotics |
| 03/08/1989 | EP0306266A1 Azetidinone n-phosphonomethyl esters |
| 03/08/1989 | CN1031533A Stable oxapenem-3-carboxylic acids |
| 03/08/1989 | CN1003514B Process for preparing 4-acetoxy-3-hydroxyethylazetizin-2-one derivatives |
| 03/07/1989 | US4810791 Ureidoalkanoylaminocarbonyl amino and imino acids and esters |
| 03/07/1989 | US4810788 Azetidinone disulfide derivatives and a process for preparing the same |
| 03/07/1989 | CA1250839A1 Fluoralkylated carbapenem derivatives |
| 03/01/1989 | CN1031375A 5-heterocyclic-substituted oxazolidine dihaloacetamides |
| 02/22/1989 | EP0304409A1 5-Heterocyclic-substituted oxazolidine haloacetamides |
| 02/22/1989 | EP0304208A1 Chemical process |
| 02/21/1989 | US4806637 6-(Hydroxyethyl)-2-(heterocyclylthio)-penem-3-carboxylates |
| 02/21/1989 | CA1250287A1 OPTICALLY ACTIVE .beta.-LACTAMS AND METHOD OF THEIR PRODUCTION |
| 02/15/1989 | EP0303286A1 2-Oxo-1-[[(substituted sulfonyl)amino]-carbonyl]azetidines |
| 02/15/1989 | EP0303283A2 2-Hydroxybenzophenone hydrazides and derivatives thereof |
| 02/07/1989 | US4803266 3-Oxoalkylidene-2-azetidinone derivatives |
| 02/01/1989 | EP0301877A1 A method of deprotection of 3-amino azetidinones |
| 02/01/1989 | EP0301394A1 Stable oxapenem-3-carboxylic acids |
| 01/31/1989 | US4801720 Chemical intermediates for cephalosporins |
| 01/31/1989 | US4801705 Antibiotics, bactericides |
| 01/25/1989 | EP0300657A2 4-substituted 3-oxobutanoate ester derivatives |
| 01/25/1989 | EP0300462A2 Heterocyclic peroxycarboxylic acids |
| 01/24/1989 | CA1249285A1 Preparation of azetidinone sulfinic acids from cephalosporin sulfones |
| 01/24/1989 | CA1249279A1 Process for carbon-carbon bond formation at the c-4 position of 3-acylaminoazetidinones |
| 01/18/1989 | EP0299513A1 Azetidine derivatives, compositions and their use |
| 01/17/1989 | US4798890 Process for preparation of azetidinone derivatives |
| 01/10/1989 | CA1248520A1 Penem compounds, pharmaceutical compositions containing them, processes for their preparation |
| 01/03/1989 | US4795809 Novel clavam derivatives and methods of making same |
| 01/03/1989 | US4795748 Antibacterial 7-oxo-4-thia-1-azabicyclo[3,2,0]hept-2-ene derivatives |
| 12/27/1988 | US4794109 Antibiotic |
| 12/27/1988 | US4794108 Bactericides, microbiocides |
| 12/21/1988 | EP0295308A1 Optically active azetidinones and process for production thereof. |
| 12/21/1988 | CN88102863A Diasteriomeric 5r, 6s-6-(1r-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids |
| 12/14/1988 | EP0294934A2 Diastereomeric 5R,6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids |
| 12/14/1988 | EP0294380A1 Stimulation of angiogenesis |
| 12/13/1988 | US4791207 Thia- or oxazolidinones |
| 12/13/1988 | US4791198 Chemical intermediates for thienamycins |
| 12/13/1988 | CA1246572A1 2-oxo-1-[[(substituted sulfonyl)amino]- carbonyl]azetidines |
| 12/06/1988 | US4789740 Halogenation process for preparing 2-(oxoazetidinyl)-3-chloromethyl-3-butenoate |
| 12/06/1988 | CA1246072A1 Isocyanato-azetidine-diones |
| 11/29/1988 | CA1245658A1 Acylalkylaminocarbonyl substituted amino and imino acid compounds |
| 11/22/1988 | US4786316 Pre-and post-emergent herbicides, plant growth regulator |
| 11/17/1988 | WO1988008845A1 Diastereomeric 5r,6s-6-(1r-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids |
| 11/15/1988 | US4784734 Intermediates for cephalosporin antibiotics |
| 11/09/1988 | EP0290385A1 Process for preparing 4-acyloxy-3-hydroxyethyl-azetidinones |
| 11/09/1988 | CN88100973A Beta-amino-beta-propiolactam derivative and moisture curable polyurethane complsition thereof |
| 11/08/1988 | CA1244454A1 Process for preparing 2-azetidinones |
| 11/02/1988 | EP0288477A1 2,3-dihydro-1h-phenalene-2-amino compounds as anti-psychotic drugs |
| 11/01/1988 | US4782144 1-carba(dethia)-3-hydroxy-3-cephem ester crystalline and crystalline solvate thereof |
| 11/01/1988 | CA1244037A1 (2-oxo-1-azetidinyloxy)-2-propenoic acid |
| 11/01/1988 | CA1244036A1 3-ACYLAMINO-2-OXOAZETIDINE-1-(.beta.-OXOPROPIONIC ACID) |
| 11/01/1988 | CA1244034A1 Process for preparing 3-amino-2-oxo-azetidine having a nitrogen-containing heterocyclic radical in position 1; derivatives thus obtained |
| 11/01/1988 | CA1244006A1 Substituted peptide compounds |
| 10/25/1988 | CA1243679A1 3-ACYLAMINO-2-OXO-1-AZETIDINYL-.beta.-OXYPROPIONATES |
| 10/18/1988 | US4778883 For thienamycin antibiotics |
| 10/18/1988 | US4778577 Oxidation of alcohol to acid with nickel/iii/compound |
| 10/11/1988 | US4777286 Certain aryl or hetero-hydroxamic acid esters useful as renin inhibitors |
| 10/11/1988 | US4777252 2-oxo-1-[[(substituted sulfonyl)amino]-carbonyl]azetidines |
| 10/11/1988 | US4777175 (naphthyridine, quinoline) carboxylic acid |
| 10/05/1988 | EP0285175A1 Asymmetric photochemical reaction process |
| 10/04/1988 | US4775752 Process and intermediates for beta-lactam antibiotics |
| 10/04/1988 | US4775670 Bactericides, antibiotics |
| 10/04/1988 | US4775669 Antibiotic |
| 09/27/1988 | US4774218 Catalyst for vapor-phase intramolecular dehydration reaction of alkanolamines |
| 09/21/1988 | EP0283253A1 Method for preparation of azetidinone-1-oxoacetate by oxidation of the corresponding 2-hydroxyacetate |
| 09/21/1988 | EP0282492A1 Antimicrobial n-acyl-2-azetidinones |
| 09/20/1988 | US4772693 Bactericides for mammals and humans |
| 09/20/1988 | US4772692 Intermediate compounds for the preparation of antibacterial penem derivatives |
| 09/20/1988 | US4772683 High percentage beta-yield synthesis of carbapenem intermediates |
| 09/20/1988 | US4772596 Calcium blockers |
| 09/20/1988 | CA1242188A1 3-methoxy-2-oxoazetidine derivatives and their production |
| 09/14/1988 | EP0282241A1 Beta-lactam compounds and production process thereof |
| 09/13/1988 | US4771135 Antibiotic intermediates |
| 09/13/1988 | US4771134 Penicillin antibiotic intermediate |
| 09/13/1988 | US4771054 Antibacterial agents |
| 09/13/1988 | US4771045 2-oxozetidinone derivatives, their production and use |