摘要:
The invention relates to 7-amino-1-cyclo-propyl-4-oxo-1,4-dihydro-naphthyridine (or quinoline)-3-carboxylic acids of Formula I as defined in the specifications. Also included in the invention is a process for the preparation of said compounds of Formula I and Ia. Further, the invention includes compositions containing the compounds of Formula I or Ia and the use of said compounds and compositions as antibacterial agents.
摘要:
Novel 1-cyclopropyl-4-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid antibacterials of the formula ##STR1## in which R.sup.1 is hydrogen, alkyl with 1 to 4 carbon atoms and optionally substituted by hydroxyl, methoxy, amino, dimethylamino, halogen, cyano or alkoxycarbonyl having 1 or 2 carbon atoms in the alkyl moiety, or is oxoalkyl having up to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms,R.sup.2 is phenyl or cyclohexyl optionally substituted up to three times by halogen, methyl, phenyl, cyano, hydroxyl, methoxy, benzyloxy, amino, methylamino, dimethylamino, piperidino or nitro, or is methylenedioxyphenyl, methylenedioxycyclohexyl, furyl, tetrahydrofuryl or thienyl, andX.sup.1 is hydrogen or fluorine,or pharmaceutically ultizable hydrates, acid addition salts, alkali metal salts or alkaline earth metal salts thereof.
摘要:
The invention relates to quinolone carboxylic acids, pharmaceutical compositions containing said quinolone carboxylic acids and the use of said compounds and compositions for treatment of bacterial infection. Also included in the invention are process for the manufacture of the active quinolone carboxylic acids.
摘要:
Pseudotrisaccharides of the sisomycin type are provided which are effective an antibacterial agents, particularly against gram-negative microorganisms. The invention also includes methods for the manufacture of the pseudotrisaccharides, compositions containing said pseudotrisaccharides and methods for the treatment of warm-blooded animals using said compounds and compositions.
摘要:
The invention relates to an antibiotic compound which can be in the iron-free or iron-containing form and has the structural formula (A) as described herein. The compound possesses antimicrobial activity. Also included in the invention are fermentation processes for preparation of the above-mentioned antibiotic compound. In addition, the invention includes pharmaceutical compositions containing said antibiotic compound and the use of said antibiotic compound and compositions for combating bacterial infections.
摘要:
Anti-bacterially active penicillin 1,1-dioxides of the formula ##STR1## or a salt thereof, in which R.sub.1 denotes a hydrogen atom or an ester-forming radical,R.sub.2 denotes a hydrogen atom or optionally substituted alkoxy group,R.sub.3 denotes a hydrogen atom, COR.sub.4, SO.sub.2 -alkyl, SO.sub.2 -aryl or an optionally substituted alkyl group, but R.sub.2 and R.sub.3 do not simultaneously denote hydrogen atoms, andR.sub.4 denotes a hydrogen atom or any of many possible organic radicals.The compounds are also inhibitors of .beta.-lactamases so they can be used in conjunction with .beta.-lactamase-susceptible antibiotics. They are useful in fighting bacterial infection, in promoting animal growth and in preserving various materials.
摘要:
The invention relates to sisomicin derivatives defined below in Formula (I) and a process for the preparation of said derivatives. Also included in the invention are compositions containing said derivatives and methods for using said derivatives and compositions. ##STR1##
摘要:
New .beta.-lactam antibiotics carrying a terminal -ylidene-2-pyrrolidinon-1-yl radical and of the formula ##STR1## in which A and A' represent hydrogen, optionally substituted alkyl, aryl or a group of the formula R.sub.1 --X'in whichX' denotes a --CO-- or --SO.sub.2 -- group andR.sub.1 denotes hydrogen, optionally substituted alkyl, aryl, thienyl, furyl, amino, monoalkylamino, dialkylamino, pyrrolidyl or piperidyl, it being furthermore possible for R.sub.1 to denote alkoxy if X' represents the --CO-- group;R represents H or OCH.sub.3B represents phenyl, methylphenyl, chlorophenyl, hydroxyphenyl, furyl or the radical ##STR2## X represents S, O, SO, SO.sub.2 or --CH.sub.2 --; and Y represents the group ##STR3## in which the carbon atom which carries the carboxyl group is bonded to the nitrogen atom of the .beta.-lactam ring and T denotes hydrogen, alkyl-CO-O, pyridinium, amino-pyridinium, carbamoyloxy, azido, cyano, hydroxyl, the group -S-phenyl, which can be substituted, or the group --S--Het, in whichHet represents an optionally substituted heterocyclic5-membered or 6-membered ring;or a salt thereof, exhibit antibacterial and animal growth promoting activity.
摘要:
The invention relates to 1-N-4,6-di-O-(aminoglycosyl)-1,3-diamino-cyclitol derivatives useful as antimicrobial agents. Also included in the invention are methods for preparing said derivatives, the provision of pharmaceutical compositions containing said derivatives and methods for the use of said derivatives and compositions.
摘要:
2-Hetero-acetamido-penicillanates and cephalosporinates of the formula ##STR1## in which R is hydrogen or lower alkoxy,Z is ##STR2## R.sup.1 and R.sup.2 independently or together are various radicals, A is --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --CH.sub.2 -- or ##STR3## n is 1 or 2, X is S,O,SO,SO.sub.2 or --CH.sub.2 --,Y is the balance of a penicillin or cephalosporin moiety, andB is a heterocyclic radical, in the form of the acid, a hydrate thereof, a salt thereof or a salt of the hydrate, exhibit marked anti-bacterial properties rendering them suited for use as antibiotics and animal feed supplements.