Abstract:
Title compds. I[R1=H, protected amino; R2=H, alkyl, alkenyl, Ph, benzyl; R3=H, ester, anion; R4=H, alkoxy; A=-CH2SR5, -CH2Y; R5=hetero cyclic group; Y=pyridinium, quinolinium group! were prepd. Thus, 2.6 g mixt. of H2O, ethanol, and 7-beta-[alpha-sinmethoximino-alpha-(2- amino-thiazol-4-yl)-acetamido!-cephalosporanic acid were dissolved in 50ml H2O with 1.5 g 2-mercapto-3-oxy-4phenyl-1,3-thiazole and incubated for 2 h at 64≦̸C at pH 6.0-7.0 to give 0.9 g 7-beta-[alpha- sin-methoximino-alpha-(2-amino-thiazol-4yl)-acetamido!-3-(3-oxy-4- phenyl-1,3-thiazol-2-yl-thiomethyl)-3cephem-4-carboxylic acid.
IN WHICH R1 AND R2 REPRESENT HYDROGEN, HALOGEN, LOWER ALKYL OR ALKOXY, CARBOXY, CARBAMOYL, LOWER CARBALKOXY, CARBOBENZOXY, SULFOXY OR SULFAMOUL; R3 REPRESNETS HYDROGEN OR LOWER ALKYL HAVING 1 TO 3 CARBON ATOMS, R4 REPRESENTS AN ALKYL RADICAL HAVING 1 TO 12 CARBON ATOMS, WHICH MAY CARRY ONE OR SEVERAL HYDROXY, LOWER ALKOXY, CARBOXY, LOWER CARBALKOXY, CARBAMOYL, NITRILE, SULFO, LOWER SULFALKOXY AND/OR SULFAMOYL GROUPS, AND X REPRESENTS THE ANION OF A NON-TOXIC ACID, WHICH COMPOUNDS HAVE BACTERIOSTATIC PROPERTIES.
Abstract:
Acylaminocephalosporanic acids of the formula I
wherein R1, R2 and R3 each represents hydrogen or lower alkyl radicals in which case R1 and R2 may also form together an optionally substituted alkylene radical, A represents an optionally substituted phenylene or thienyl radical, and X represents an oxygen atom or a single bond, the physiologically tolerable salts thereof, pharmaceutical preparations effective against bacterial infections containing these compounds, and a process for the manufacture.
Abstract:
IN WHICH R1, R2 and R3 represent hydrogen or lower alkyl groups and R1 and R2 may form together an alkylene group which may be substituted, R4 represents a linear or branched alkyl radical of 1 to 5 carbon atoms, a cyclo-alkyl radical of 3 to 7 carbon atoms which may be interrupted by heteroatoms, X represents a single bond or NH, A represents a phenylene or thienylene group which may be substituted and Y represents a single bond or oxygen, and their physiologically tolerated salts; the novel compounds have very good anti-bacterial properties.
Acylamino-cephem-carboxylic acids of the general formula
Abstract:
NEW CARBOXYLIC ACID HYDRAZIDES OF THE GENERAL FOMULA
1,4-DI-O IN WHICH R1 IS LOWER ALKYL, PREFERABLY METHYL, AND R2 AND R3 REPRESENT HYDROGEN, LOWER ALKYL OR ALKOXY, ARE PREPARED BY REACTING A COMPOUND OF THE FORMULA
1,4-DI-O IN WHICH R IS ALKYL, WITH HYDRAZINE HYDRATE UNDER MILD REACTION CONDITIONS. THE PRODUCTS OF THE INVENTION HAVE AN ANTIBACTERIAL ACTIVITY.
Abstract:
Medicines which contain a substance which liberates tumour necrosis factor (TNF) are better tolerated and can be given in higher doses when they contain a TNF inhibitor, especially a xanthine derivative.
Abstract:
of the disclosure: A pharmaceutical combination product and the preparation and use thereof A pharmaceutical combination product containing or composed of a) at least one sulfated polysaccharide and b) at least one xanthine derivative. The product is suitable for controlling and preventing virus diseases, especially those caused by retroviruses.
Abstract:
Pharmaceutical combination products containing at least one cephalosporin derivative and at least one xanthine derivative are suitable for the prophylaxis and treatment of bacterial infectious diseases and for the prophylaxis and treatment of septic shock.