Tazobactam acid

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P304+P340：BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

  P405：Unter Verschluss aufbewahren.

Tazobactam acid Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

• S-Sätze Betriebsanweisung:

  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

• Beschreibung

  Tazobactam often is coadministered with piperacillin because of tazobactam's ability to inhibit β-lactamases. T azobactam, like other β-lactamase inhibitors, has little or no antibacterial activity. This effect is analogous to that of clavulanic acid and sulbactam.

• Chemische Eigenschaften

  White or off-white powder

• Originator

  CL-307579,China Pharm Chemical Co.,,China

• Verwenden

  Tazobactam is a β-Lactamase inhibitor, used with β-lactam antibiotics to enhance their effect.

• Verwenden

  b-lactamase inhibitor

• Definition

  ChEBI: A member of the class of penicillanic acids that is sulbactam in which one of the exocyclic methyl hydrogens is replaced by a 1,2,3-triazol-1-yl group; used (in the form of its sodium salt) in combination with ceftolozane sulfate for treatment of complicat d intra-abdominal infections and complicated urinary tract infections.

• Manufacturing Process

  A known β-lactam type antibiotic (for example, benzhydryl 2-β-chloromethyl- 2-α-methylpenam-3-α-carboxylate) was used for synthesis of new penicillinic derivatives.
  A solution of 5.00 g of sodium azide in 53 ml of water was added to a solution of benzhydryl 2-β-chloromethyl-2-α-methylpenam-3-α-carboxylate (5.13 g) in dimethylformamide (155 ml). The mixture was stirred at room temperature for 4 h. The resulting reaction mixture was poured into cooled water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with water, dried over magnesium sulfate and concentrated to provide 4.87 g of the benzhydryl 2-β-azidomethyl-2-α-methylpenam-3-α-carboxylate as oil in 93% yield.
  To a solution of benzhydryl 2-β-azidomethyl-2-α-methylpenam-3-α- carboxylate (7.03 g) in a mixture of acetic acid (240 ml) and water (40 ml) was added potassium permanganate (6.02 g) over a period of more than 1 h. The mixture was stirred at room temperature for 2.5 h. The resulting reaction mixture was diluted with ice water. The precipitate was collected by filtration, and washed with water. The resulting product was dissolved in ethyl acetate and the solution was washed with an aqueous solution of sodium hydrogen carbonate and dried over magnesium sulfate. Concentration gave 5.48 g of the benzhydryl 2-β-azidomethyl-2-α-methylpenam-3-α-carboxylate-1,1-dioxide in 72% yield.
  A 200 mg quantity of benzhydryl 2-β-azidomethyl-2-α-methylpenam-3-α- carboxylate-1,1-dioxide was reacted with 10 ml of vinyl acetate in a sealed reactor at 100° to 110°C for 30 h. The reaction mixture was concentrated at reduced pressure. The residue was crystallized with cooled chloroform. The white crystals of benzhydryl 2-α-methyl-2-β-(1,2,3-triazol-1-yl)methylpenam- 3-α-carboxylate-1,1-dioxide have a melting point 206°-208°C, dec.
  Hydrogenation was conducted in 10 ml of ethyl acetate and 10 ml of water at room temperature for 30 min by using 45 mg of benzhydryl 2-α-methyl-2-β- (1,2,3-triazol-1-yl)methylpenam-3-α-carboxylate-1,1-dioxide, 15 mg of 10% palladium charcoal and 16 mg of sodium hydrogen carbonate. The aqueous layer was separated from the reaction mixture and washed once with ethyl acetate. The aqueous solution was then purified with an MCl gel, CHP-20P (product of Mitsubishi Kasei Co., Ltd., Japan). After freeze-drying, there was obtained an amorphous product of sodium 2-α-methyl-2-β-(1,2,3-triazol-1- yl)methylpenam-3-α-carboxylate-1,1-dioxide with a melting point 170°C, dec.

• Therapeutic Function

  Antibiotic

• Antimicrobial activity

  Tazobactam exhibits little useful antimicrobial activity, although weak activity against Acinetobacter spp. and Borrelia burgdorferi has been reported.

• Mechanism of action

  Tazobactam functions as an irreversible inhibitor by covalently binding to β-lactamases, and prevents the enzyme hydrolysis of ceftolozane, thereby enhancing its activity against resistant ESBL-producing pathogens, along with expanding coverage to include anaerobes (e.g., Bacteroides spp.)

• Clinical Use

  Tazobactam is a penicillanic acid sulfone that is similar instructure to sulbactam. It is a more potent β-lactamaseinhibitor than sulbactam and has a slightly broader spectrumof activity than clavulanic acid. It has very weak antibacterialactivity. Tazobactam is available in fixed-dose, injectablecombinations with piperacillin, a broad-spectrum penicillinconsisting of an 8:1 ratio of piperacillin sodium to tazobactamsodium by weight and marketed under the trade name Zosyn.The pharmacokinetics of the two drugs are very similar. Bothhave short half-lives (t_1/2 ～1 hour), are minimally proteinbound, experience very little metabolism, and are excreted inactive forms in the urine in high concentrations.
  Approved indications for the piperacillin–tazobactamcombination include the treatment of appendicitis, postpartumendometritis, and pelvic inflammatory disease caused byβ-lactamase–producing E. coli and Bacteroides spp., skin andskin structure infections caused by β-lactamase–producingS. aureus, and pneumonia caused by β-lactamase–producingstrains of H. influenzae.

• Veterinary Drugs and Treatments

  Although veterinary experience is limited with piperacillin or piperacillin/ tazobactam, these drugs have expanded coverage against many bacteria and may be suitable for empiric use until culture and susceptibility data are available, or for surgical prophylaxis when gram-negative or mixed aerobic/anaerobic infections are concerns.

• Arzneimittelwechselwirkung

  Potentially hazardous interactions with other drugs
  Reduced excretion of methotrexate - monitor methotrexate levels during concomitant treatment.
  Enhanced action of vecuronium and similar neuromuscular blocking agents.

• Stoffwechsel

  Piperacillin is metabolised to a minor microbiologically active desethyl metabolite. Tazobactam is metabolised to a single metabolite that has been found to be microbiologically inactive.
  Piperacillin and tazobactam are eliminated via the kidney by glomerular filtration and tubular secretion. Piperacillin, tazobactam, and desethyl piperacillin are also secreted into the bile.

Tazobactam acid Upstream-Materialien And Downstream Produkte

Tazobactam acid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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