| 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) |
|---|
| 09/20/1994 | US5348949 Method of preparing N-oxo-tetrahydro-β-carbolines |
| 09/07/1994 | CN1025856C Extractent and process for extracting penisiuin and its application |
| 08/31/1994 | EP0612749A1 Method of desilylating silylether compounds |
| 08/23/1994 | CA1331564C Redox systems for brain-targeted drug delivery |
| 08/03/1994 | CN1090285A Quinolonecarboxylic acids |
| 07/20/1994 | EP0524959B1 Process for sultamicillin intermediate |
| 07/13/1994 | CN1089267A Chemical compounds |
| 07/12/1994 | US5328908 Antimicrobial quinolone thioureas |
| 07/05/1994 | US5326884 Process for optically active 3-(methane-sulfonyloxy)thiolane and analogs |
| 06/15/1994 | CN1025032C Process for preparing 2-methoxymethyl-penem derivatives |
| 06/07/1994 | US5319103 Intermediate diastereomeric 5R,6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-carboxylic acids |
| 06/01/1994 | CN1024754C Antibacterial lyophilized prepn. |
| 05/18/1994 | EP0597401A2 Production of penem |
| 05/18/1994 | EP0597051A1 Hydroxy protecting group removal in penems |
| 05/12/1994 | CA2102827A1 Production of penem |
| 05/11/1994 | WO1994010178A1 6-(substituted methylene) penems and intermediates |
| 05/11/1994 | EP0596262A1 Process for the preparation of sterile beta-lactam antibiotics |
| 05/04/1994 | EP0594563A1 Asymmetrical ureas, method for the preparation and utilization of the same |
| 04/27/1994 | EP0593457A1 Antimicrobial quinolone thioureas |
| 04/21/1994 | DE3348300C2 Use of alpha-bromo:di:ethyl carbonate for Bacampicillin prepn. from ampicillin |
| 04/13/1994 | EP0592167A1 Antibiotic pyrrolidinylthiopenem derivatives |
| 04/13/1994 | EP0591808A1 Quinolonecarboxylic acids |
| 04/12/1994 | US5302711 Deesterification of the blocked 3- or 4-carboxylate derivative of cepham or penam with lithium iodide in a nonbasic solvent having a dielectric constant of between 0 and 15 |
| 04/12/1994 | US5302588 Antibacterial agent |
| 04/10/1994 | CA2107812A1 Quinolone carboxylic acids |
| 04/08/1994 | CA2106330A1 Antibiotic compounds |
| 04/05/1994 | US5300497 Broad spectrum antibiotics and bactericides; stable to beta-lactamase; effective against antibiotic-resistant bacteria |
| 03/31/1994 | WO1994006803A1 Penem derivatives, their preparation and pharmaceutical compositions containing them |
| 03/31/1994 | CA2144961A1 Penem derivatives, their preparation and pharmaceutical compositions containing them |
| 03/24/1994 | DE4231295A1 New antibacterial(s) with high stability to beta-lactamase - are 6-(alpha-(aryl-aminocarbonyl (vinyl)carbonylamino) -alpha-phenyl)-penicillanic acid derivs. |
| 03/16/1994 | EP0587436A1 Process for preparing carbapenem and penem compounds and new compounds involved in that process |
| 03/15/1994 | US5294644 Surface active lactams |
| 03/10/1994 | CA2105746A1 Process for preparing carbapenem and penem compounds and new compounds involved in that process |
| 03/09/1994 | EP0262207B1 Beta-lactam antibiotics |
| 03/08/1994 | US5292924 Optically active N-α-fluoroacryloylamino acid polymers for the resolution of racemates |
| 03/08/1994 | CA1327566C Brain-specific drug delivery |
| 02/22/1994 | US5288860 Process for preparing thiazolino azetidinone and 2-exo-methylenepenam derivative |
| 02/17/1994 | WO1994003168A1 5 s penem derivatives, their preparation and use |
| 02/15/1994 | US5286857 Intermediate for the preparation of penems |
| 02/09/1994 | CN1081668A (1'R,3S,4R)4-acylthio-azetidinones |
| 01/25/1994 | US5281703 Process for making antimicrobial quinolonyl lactams |
| 12/28/1993 | US5273973 Antimicrobial quinolonyl esters |
| 12/23/1993 | WO1993025523A1 4-acylthio azetidinones |
| 12/23/1993 | CA2115173A1 4-acylthio azetidinones |
| 12/22/1993 | EP0574940A1 Method for removing the protecting group for carboxyl group |
| 12/22/1993 | EP0574784A1 (1'R,3S,4R)4-acylthio azetidinones |
| 12/21/1993 | CA1325422C Prodrug derivatives of carboxylic acid drugs |
| 12/08/1993 | EP0385999B1 Application of 4- 1-oxoalkyl]-2,5-oxazolidinediones in selective stereospecific formation of biologically active beta-lactams |
| 12/08/1993 | CN1023016C Process for preparing diastereomeric 5R, 6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids |
| 12/08/1993 | CN1023015C Process for preparation of penems |
| 12/08/1993 | CN1022973C Method and apparatus for preparing food foodstuffs |
| 12/07/1993 | CA1325077C Beta-lactam derivatives |
| 11/30/1993 | US5266693 6-diazo-penicillanic acid 1,1-dioxide derivatives |
| 11/25/1993 | WO1993023406A1 Hydroxy protecting group removal in penems |
| 11/25/1993 | CA2110989A1 Hydroxy protecting group removal in penems |
| 11/24/1993 | CN1022836C Process for preparing 2-subs-methylpenicillin derivatives |
| 11/24/1993 | CN1022835C Process for preparing 2 alpha-methyl-2 beta-(1,2,3-triazole-1-yl) methylpenam-3 alpha-carboxylic acid derivatives |
| 11/09/1993 | US5260438 With fluorine compound |
| 11/03/1993 | EP0567949A1 Method for removing the protecting group for hydroxy group |
| 10/27/1993 | CN1022568C Synthesis of tricyclazole |
| 09/29/1993 | CN1076698A Condensation process for semi-synthetic penicillin |
| 09/08/1993 | EP0559533A1 Process for preparing beta-lactam derivative and synthetic intermediate thereof |
| 09/07/1993 | CA2085540A1 Process for preparing beta-lactam derivative and synthetic intermediate the reof |
| 09/01/1993 | CN1021968C Preparation process of sodium salt penicillin |
| 08/25/1993 | EP0557035A2 An ester cleavage process for use with beta-lactams |
| 08/19/1993 | CA2089540A1 Ester cleavage process for use with .beta.-lactams |
| 08/18/1993 | EP0555421A1 Penem derivatives |
| 08/11/1993 | CN1075146A Process for making antimicrobial quinolonyl lactams |
| 08/04/1993 | CN1021735C Process for preparation of cephalosporin compounds |
| 07/21/1993 | CN1021655C Composition and method for extracting penicillin |
| 06/23/1993 | CN1073442A Method for preparing 3S,4R-N-oxalyl-3-ethyl-4-|1R-oxo-3S-thiolanylthio (thiocarbonyl)-thio¨-2-azetidinones |
| 06/16/1993 | CN1021225C Hydrate of penicillin derivative and process for preparing same |
| 06/09/1993 | EP0544907A1 Antibacterial penem esters derivatives |
| 06/09/1993 | EP0544906A1 Penem compounds |
| 06/09/1993 | EP0544905A1 Antibacterial penem compounds |
| 06/01/1993 | US5215997 Synthesis of beta-lactam compounds |
| 06/01/1993 | US5215891 Enzymatic hydrolysis of ester group of the 2-substituent by lipase enzyme |
| 04/29/1993 | WO1993008196A1 Penicillin g ester |
| 04/27/1993 | US5206361 Thiazolinoazetidinone derivative |
| 04/21/1993 | EP0537255A1 PROCESS FOR PREPARATION OF $g(b)-LACTAMS |
| 04/15/1993 | WO1993007154A1 Process for making antimicrobial quinolonyl lactams |
| 04/15/1993 | CA2120493A1 Process for making antimicrobial quinolonyl lactams |
| 04/13/1993 | CA1316171C Cephalosporin derivatives |
| 04/07/1993 | EP0311640B1 Higher alkyl pyrrolidone extractants for water soluble phenolic or carboxylic antibiotics |
| 04/06/1993 | US5200403 Administering to prevent destruction of beta-lactam antibiotics |
| 03/30/1993 | US5198544 Process for the preparation of penem compounds |
| 03/23/1993 | US5196530 Cyclization with reducing metal |
| 03/04/1993 | WO1993004070A1 Substituted acrylamido-penicillanic acid derivatives |
| 03/02/1993 | US5191077 Systemic bactericides |
| 03/02/1993 | US5191075 Preparation of penicillins |
| 02/18/1993 | WO1993003042A1 6-ethylidene penem derivatives |
| 02/09/1993 | US5185330 Penam derivatives and salts thereof, and antibacterial agent comprising the same |
| 02/03/1993 | EP0525057A1 Antimicrobial quinolonyl lactams |
| 02/03/1993 | EP0524959A1 Process for sultamicillin intermediate. |
| 01/21/1993 | WO1993001174A1 Thiazolidine derivatives and their use as anti-viral compounds |
| 01/19/1993 | US5180719 Antimicrobial quinolonyl lactam esters |
| 01/07/1993 | EP0521018A1 Process for preparing penem esters |
| 01/05/1993 | US5176739 Dicarboximides and their use as herbicides |
| 01/05/1993 | CA1312288C Compositions used in permanent alteration of hair color |
| 12/23/1992 | EP0519516A1 Penem derivatives |