| 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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| 09/07/1988 | WO1988006587A1 ANTIBIOTIC beta-LACTAMS CONTAINING A PYRIDONE CARBOXYLIC ACID OR ACID DERIVATIVE |
| 09/07/1988 | EP0281177A1 A synthesis for beta-lactams with the aid of a metal compound |
| 09/07/1988 | EP0280962A1 Process for preparing 4-acetoxy-3-hydroxyethylazetidin-2-one derivatives |
| 09/06/1988 | US4769451 Synthesis of carbapenems using n-substituted azetidinones |
| 09/06/1988 | US4769365 Certain carboxylic azetidine derivatives useful in reducing blood cholesterol |
| 09/06/1988 | CA1241656A1 Fluoralkylatedcarbapenem derivatives |
| 08/31/1988 | CN88100764A Process for preparing 4-acetyloxy-3-hydroxyethyl nitrogen heterocyclic ring butane-2-one derivatives |
| 08/30/1988 | US4767853 Ozonolysis, hydrolysis, decyclization |
| 08/30/1988 | US4767769 Antiulcer benzimidazole derivatives |
| 08/30/1988 | CA1241337A1 Preparation of n-substituted azetidine 3-carboxylic acid derivatives |
| 08/25/1988 | WO1988006156A1 NOVEL N-1 SUBSTITUTED beta-LACTAMS AS ANTIBIOTICS |
| 08/24/1988 | EP0279781A2 Process for the preparation of 4-acetoxy-3-hydroxyethyl-acetidinone |
| 08/24/1988 | EP0279543A1 Process for the preparation of an azetidine and intermediates therefor |
| 08/17/1988 | CN88100703A Synthesis for beta-lactams with the aid of metal compound |
| 08/16/1988 | US4764204 Herbicidal sulfonamides |
| 08/16/1988 | CA1240685A1 Preparation of 1-substituted azetidin-3-ol derivatives |
| 08/10/1988 | EP0277725A2 4-Aryl-N-[2-(dialkylamino and heterocyclicamino) alkyl]-1-piperazinecarboxamides and their use as anti allergy agents |
| 08/03/1988 | EP0276993A1 Process for preparing azetidinones |
| 08/02/1988 | US4761408 Penicillin derivatives, bactericides |
| 07/28/1988 | WO1988005431A1 beta-AMINO-beta-PROPIOLACTAM DERIVATIVES AND MOISTURE-CURABLE POLYURETHANE COMPOSITION PREPARED THEREFROM |
| 07/19/1988 | US4758556 Cephem derivatives |
| 07/05/1988 | US4755210 Method for sterilizing male parts of plants |
| 06/30/1988 | WO1988004656A1 Optically active azetidinones and process for production thereof |
| 06/30/1988 | DE3643461A1 beta -Lactam hydroxycarboxylic acid esters, process for their preparation, and their use |
| 06/28/1988 | US4754041 3-acylamino-2-oxo-1-azetidinesulfonic acids |
| 06/28/1988 | US4754029 Carbapenicillin intermediates |
| 06/22/1988 | EP0271586A1 $g(b)-LACTAM COMPOUNDS AND PROCESS FOR THEIR PREPARATION |
| 06/14/1988 | US4751299 Optically active β-lactams and method of their production |
| 06/14/1988 | US4751297 Method for preparation of azetidinone-1-oxoacetate by oxidation of the corresponding 2-hydroxyacetate |
| 06/14/1988 | US4751296 Process for 4-halomethyl-azetidinones by cyclization of O-acylhydroxamates |
| 06/01/1988 | EP0269236A1 Process for synthesis of a chiral azetidinone |
| 06/01/1988 | EP0268856A1 Preparation of primary aralkyl urethanes and ureas and isocyanates derived therefrom |
| 05/11/1988 | EP0266922A1 Dihydropyridine derivatives, their preparation and their use |
| 05/10/1988 | US4743598 Antibacterial 2-(azacycloalkyl) penems |
| 05/04/1988 | CN87107150A Dihydropyridine derivatives, their preparation and their use |
| 05/03/1988 | US4742067 Acylalkylaminocarbonyl substituted amino and imino acid compounds |
| 05/03/1988 | US4742052 Antibacterial β-lactam compounds |
| 04/27/1988 | EP0265169A1 Oxadiazines & related compounds |
| 04/26/1988 | US4740596 Process for preparation of 4-sulfonylthio azetidinone derivatives |
| 04/26/1988 | US4740595 Preparation of azetidinones via N-protected oxirancecarboxamide intermediates |
| 04/26/1988 | US4740508 Ureidoalkanoylaminocarbonyl amino and imino acids and esters |
| 04/20/1988 | EP0264232A1 2-Azetidinone derivatives |
| 04/20/1988 | EP0264231A1 Azetidinone derivatives |
| 04/19/1988 | US4739048 Process for the preparation of thienamycin and intermediates |
| 04/19/1988 | US4738959 Antibacterial penem derivatives |
| 04/12/1988 | US4737185 Herbicidal 2,6-disubstituted benzylsulfonamides and benzebesulfamates |
| 04/12/1988 | CA1235130A1 Azetidine derivatives and their preparation |
| 04/05/1988 | US4736025 Process for the preparation of thienamycin and intermediates |
| 04/05/1988 | US4735940 Tricyclic pyridine derivatives and pharmaceutical compositions |
| 03/29/1988 | US4734498 3β-succinimidoazetidinones as chiral intermediates |
| 03/29/1988 | US4734497 Intermediates for process for chiral synthesis of 1-β-methyl-carbapenem intermediates |
| 03/29/1988 | US4734495 Carbacephalosporins from azetidinones |
| 03/29/1988 | US4734416 Antihistamines, central nervous system controlling action |
| 03/29/1988 | US4734407 Alpha-aminoacyl-penicillins and cephalosporins |
| 03/15/1988 | CA1234099A1 Process for the production of penems |
| 03/10/1988 | WO1988001619A1 1'-methyl-beta-lactam compounds and their production |
| 03/10/1988 | WO1988001615A1 Prodrug derivatives of carboxylic acid drugs |
| 03/09/1988 | EP0259268A1 Process for the preparation of optically active beta-lactams |
| 03/08/1988 | CA1233823A1 Process for the production of 4-substituted acetoacetic acid derivatives |
| 03/02/1988 | EP0257602A1 (5R,6S,8R)-6-(1-hydroxyethyl)-2-(3R-pyrolidin-2-one-3-yl-)thiopenem-3-carboxylic acid |
| 03/02/1988 | EP0257419A1 Process for the preparation of antibacterial 7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene derivatives |
| 03/01/1988 | US4728746 β-aminothiol ester and process for preparing thereof |
| 02/24/1988 | EP0256763A1 Process for azetidinones |
| 02/18/1988 | DE3627246A1 Novel azetidinylanilines and a process for their preparation |
| 02/16/1988 | US4725678 Antibiotics |
| 02/16/1988 | US4725591 β-lactamase inhibitory composition |
| 02/16/1988 | CA1232903A1 Azetidinone derivatives, a process for their preparation and their use as intermediates in the preparation of carbapenem antibiotics |
| 02/11/1988 | WO1988000941A1 ASYMETRIC SYNTHESIS OF ENANTIOMERICALLY PURE MONOCLYCLIC beta-LACTAM INTERMEDIATES |
| 02/03/1988 | EP0255278A1 Synthesis of azetidinones |
| 01/26/1988 | US4721793 Methyl n-benzylazetidine-3-carboxylate, plant hybrids |
| 01/26/1988 | US4721722 Muscle relaxants |
| 01/19/1988 | US4720491 Fluoralkylatedcarbapenem derivatives |
| 01/19/1988 | US4720490 Fluoralkylatedcarbapenem derivatives |
| 01/13/1988 | EP0252744A2 3-Beta-(3,4-disubstituted succinimido)azetidinones |
| 01/12/1988 | US4719207 CNS active substituted azetidinone compounds |
| 01/07/1988 | EP0251143A1 2-Oxo-1-[[(Substituted Sulfonyl)Amino]-Carbonyl]Azetidines |
| 12/29/1987 | US4716226 Optically active 4-carbalkoxy-2-azetidinones |
| 12/23/1987 | EP0249909A1 Tricyclic penam compounds, their production and their use |
| 12/17/1987 | WO1987007603A1 beta-LACTAM COMPOUNDS AND PROCESS FOR THEIR PREPARATION |
| 12/17/1987 | WO1987007273A3 N-1 substituted sulfonylaminocarbonyl, c-4 substituted monobactams |
| 12/15/1987 | US4713452 Process for preparation of azetidinone derivatives |
| 12/15/1987 | US4713450 Antibiotics |
| 12/03/1987 | WO1987007273A2 N-1 substituted sulfonylaminocarbonyl, c-4 substituted monobactams |
| 12/03/1987 | WO1987007270A1 1-carboalkoxyalkyl-3-alkoxy-4-(2'-carboxyphenyl)-azet-2-ones as plant growth regulators and selective herbicides |
| 12/02/1987 | EP0247378A1 Process for preparing 4-acetoxy-3-hydroxyethylazetidin-2-one derivatives |
| 11/25/1987 | EP0246786A1 N-1 subsituted sulfonylaminocarbonyl, C-4 substituted monobactams |
| 11/24/1987 | US4709064 β-N-substituted aminothiol ester and process for preparing the same |
| 11/17/1987 | US4707547 Process for preparing carbapenem compounds |
| 11/10/1987 | US4705556 Herbicidal sulfonamides |
| 11/03/1987 | US4704457 Process for the preparation of (3S)-3-[[[2-(protected amino)-4-thiazolyl]-oxoacetyl]amino]-2-oxo-1-azetidinesulfonic acid and 4-substituted derivatives thereof |
| 11/03/1987 | US4704385 Monocyclic beta-lactam antibiotics |
| 10/20/1987 | US4701534 Intermediate |
| 10/14/1987 | EP0241200A2 Process for producing 1-betamethylcarbapenem antibiotic intermediates |
| 10/13/1987 | US4699986 Imino compounds useful for making β-lactams |
| 10/07/1987 | EP0240164A2 Preparation of azetidinones |
| 10/07/1987 | EP0239853A1 3,4-Disubstituted-2-azetidinone derivatives and processes for the preparation thereof |
| 10/06/1987 | US4698339 Carbapenems, their production and use |
| 09/29/1987 | CA1227482A1 Production of l-oxacephams |
| 09/23/1987 | EP0238285A2 2-Heterocyclylthio penems |
| 09/23/1987 | EP0238252A2 Preparation of azetidinones and intermediates |