molecular formula C21H24FN3O4 B1663623 Moxifloxacin CAS No. 151096-09-2

Moxifloxacin

Katalognummer: B1663623
CAS-Nummer: 151096-09-2
Molekulargewicht: 401.4 g/mol
InChI-Schlüssel: FABPRXSRWADJSP-MEDUHNTESA-N
Achtung: Nur für Forschungszwecke. Nicht für den menschlichen oder tierärztlichen Gebrauch.
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Beschreibung

Moxifloxacin is a synthetic fluoroquinolone antibiotic used to treat a variety of bacterial infections. It is effective against both Gram-positive and Gram-negative bacteria. This compound is commonly used to treat respiratory tract infections, skin infections, and intra-abdominal infections. It is available in oral, intravenous, and ophthalmic formulations .

Wirkmechanismus

Target of Action

Moxifloxacin, a synthetic fluoroquinolone antibiotic agent, primarily targets the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV . These enzymes play a crucial role in bacterial DNA replication, transcription, and repair .

Mode of Action

This compound inhibits the activity of topoisomerase II and IV, which are essential for the synthesis of bacterial messenger RNA and DNA replication . By binding to these enzymes, this compound blocks the ability of bacteria to duplicate DNA , thereby inhibiting cell replication and leading to bacterial death .

Biochemical Pathways

This compound’s action affects several biochemical pathways. It has been found to inhibit cytokine-induced MAP kinase and NF-κB activation, as well as nitric oxide synthesis in a human respiratory epithelial cell line . Additionally, a targeted metabolomics study demonstrated that this compound induced liver injury affects pathways related to the biosynthesis of unsaturated fatty acids, glutathione metabolism, beta-alanine metabolism, one carbon pool by folate, and cysteine and methionine metabolism .

Pharmacokinetics

This compound exhibits high bioavailability (approximately 90%) and is rapidly absorbed in humans . The plasma half-life ranges between 11.4–15.2 hours depending on the dose given, indicating a once-daily treatment regimen . It is metabolized through glucuronide and sulfate conjugation . The drug is excreted in urine and feces , with good distribution to saliva, interstitial fluids, and lung tissues .

Result of Action

The bactericidal action of this compound results in the death of susceptible bacteria, making it effective against various bacterial infections . It is used to treat conditions such as sinusitis, pneumonia, secondary infections in chronic bronchitis, and bacterial conjunctivitis . Severe side effects may include spontaneous tendon ruptures, nerve damage, and worsening of myasthenia gravis .

Action Environment

The action of this compound can be influenced by various environmental factors. For instance, in vitro studies have shown that this compound killed S. pneumoniae and H. influenzae faster than other antibiotics like tobramycin and gentamicin . This suggests that the drug’s efficacy can vary depending on the specific bacterial environment. Additionally, the drug’s action may be affected by the patient’s health status and other individual factors .

Wissenschaftliche Forschungsanwendungen

Moxifloxacin hat eine breite Palette von Anwendungen in der wissenschaftlichen Forschung:

5. Wirkmechanismus

This compound übt seine antibakterielle Wirkung aus, indem es die Enzyme Topoisomerase II (DNA-Gyrase) und Topoisomerase IV hemmt. Diese Enzyme sind für die bakterielle DNA-Replikation, -Transkription und -Reparatur unerlässlich. Durch die Hemmung dieser Enzyme verhindert this compound, dass die Bakterien ihre DNA replizieren und reparieren, was zum Absterben der Bakterienzellen führt .

Biochemische Analyse

Biochemical Properties

Moxifloxacin’s role in biochemical reactions primarily involves the inhibition of bacterial enzymes. It inhibits the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV, which are essential for bacterial DNA replication and transcription . By inhibiting these enzymes, this compound prevents bacteria from duplicating their DNA, thereby stopping their growth and proliferation .

Cellular Effects

This compound has been shown to have significant effects on various types of cells and cellular processes. For instance, it has been found to inhibit the yeast to Hyphal morphogenesis by affecting signaling pathways . It also arrested the cell cycle of Candida albicans at the S phase . Moreover, it has been observed to have photostability and reduced phototoxicity on melanocytes .

Molecular Mechanism

The molecular mechanism of action of this compound involves its interaction with bacterial enzymes. It binds to and inhibits the activity of DNA gyrase and topoisomerase IV . These enzymes are responsible for maintaining the superhelical structure of DNA and are required for DNA replication and transcription, DNA repair, recombination, and transposition . By inhibiting these enzymes, this compound prevents the bacteria from duplicating their DNA, leading to their death .

Temporal Effects in Laboratory Settings

In laboratory settings, this compound has shown a dose-dependent reduction in bacterial density over time . It has been found to be the most effective among the four fluoroquinolones tested against penicillin-resistant streptococcal pneumonia in a mouse model . Moreover, it has been observed that this compound has a good stability profile, with no significant degradation over time .

Dosage Effects in Animal Models

In animal models, the effects of this compound have been observed to vary with different dosages. In rabbit models of meningitis, treatment with this compound resulted in a dose-dependent reduction in bacterial density . In a murine model of disseminated Mycobacterium tuberculosis infection, this compound was equivalent in its ability to prevent mortality and reduce the concentration of bacteria in spleens to other antibiotics tested .

Metabolic Pathways

This compound undergoes Phase II metabolism in humans, resulting in the formation of two main metabolites: N-sulphate (M1) and acylglucuronide (M2) . These metabolites are pharmacologically inactive . This compound is eliminated via metabolic, renal, and biliary/faecal routes .

Transport and Distribution

This compound is rapidly absorbed in humans, with a high bioavailability of approximately 90% . It has a good distribution to saliva, interstitial fluids, and lung tissues . About 22% of a this compound dose is excreted via the kidneys as unmetabolised this compound .

Vorbereitungsmethoden

Synthesewege und Reaktionsbedingungen: Moxifloxacin wird in einem mehrstufigen Prozess synthetisiert. Die wichtigsten Schritte beinhalten die Bildung des Chinolon-Kerns, gefolgt von der Einführung der Cyclopropylgruppe, der Methoxygruppe und der Diazabicyclononan-Einheit. Die Synthese umfasst typischerweise die folgenden Schritte:

Industrielle Produktionsmethoden: Die industrielle Produktion von this compound beinhaltet die großtechnische Synthese unter optimierten Reaktionsbedingungen, um eine hohe Ausbeute und Reinheit zu gewährleisten. Der Prozess umfasst:

Analyse Chemischer Reaktionen

Arten von Reaktionen: Moxifloxacin unterliegt verschiedenen chemischen Reaktionen, darunter:

Häufige Reagenzien und Bedingungen:

Hauptprodukte:

Vergleich Mit ähnlichen Verbindungen

Moxifloxacin wird mit anderen Fluorchinolon-Antibiotika wie Ciprofloxacin und Levofloxacin verglichen:

Ähnliche Verbindungen:

Die einzigartigen Eigenschaften von this compound, wie sein breites Wirkungsspektrum und seine ausgezeichnete Gewebsdurchdringung, machen es zu einem wertvollen Antibiotikum bei der Behandlung verschiedener bakterieller Infektionen.

Eigenschaften

IUPAC Name

7-[(4aS,7aS)-1,2,3,4,4a,5,7,7a-octahydropyrrolo[3,4-b]pyridin-6-yl]-1-cyclopropyl-6-fluoro-8-methoxy-4-oxoquinoline-3-carboxylic acid
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI

InChI=1S/C21H24FN3O4/c1-29-20-17-13(19(26)14(21(27)28)9-25(17)12-4-5-12)7-15(22)18(20)24-8-11-3-2-6-23-16(11)10-24/h7,9,11-12,16,23H,2-6,8,10H2,1H3,(H,27,28)/t11-,16+/m0/s1
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI Key

FABPRXSRWADJSP-MEDUHNTESA-N
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Canonical SMILES

COC1=C2C(=CC(=C1N3CC4CCCNC4C3)F)C(=O)C(=CN2C5CC5)C(=O)O
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Isomeric SMILES

COC1=C2C(=CC(=C1N3C[C@@H]4CCCN[C@@H]4C3)F)C(=O)C(=CN2C5CC5)C(=O)O
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Molecular Formula

C21H24FN3O4
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

DSSTOX Substance ID

DTXSID3048491
Record name Moxifloxacin
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Molecular Weight

401.4 g/mol
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Physical Description

Solid
Record name Moxifloxacin
Source Human Metabolome Database (HMDB)
URL http://www.hmdb.ca/metabolites/HMDB0014363
Description The Human Metabolome Database (HMDB) is a freely available electronic database containing detailed information about small molecule metabolites found in the human body.
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Solubility

1.68e-01 g/L
Record name Moxifloxacin
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Mechanism of Action

The bactericidal action of moxifloxacin results from inhibition of the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV. DNA gyrase is an essential enzyme that is involved in the replication, transcription and repair of bacterial DNA. Topoisomerase IV is an enzyme known to play a key role in the partitioning of the chromosomal DNA during bacterial cell division., The fluoroquinolone antibiotic moxifloxacin has been associated with the acquired long QT syndrome and is used as a positive control in the evaluation of the QT-interval prolonging potential of new drugs. In common with other QT-prolonging agents, moxifloxacin is known to inhibit the hERG potassium K+ channel, but at present there is little mechanistic information available on this action. This study was conducted in order to characterise the inhibition of hERG current (I(hERG)) by moxifloxacin, and to determine the role in drug binding of the S6 aromatic amino-acid residues Tyr652 and Phe656. hERG currents were studied using whole-cell patch clamp (at room temperature and at 35-37 degrees C) in an HEK293 cell line stably expressing hERG channels. Moxifloxacin reversibly inhibited currents in a dose-dependent manner. We investigated the effects of different voltage commands to elicit hERG currents on moxifloxacin potency. Using a 'step-ramp' protocol, the IC50 was 65 uM at room temperature and 29 microM at 35 degrees C. When a ventricular action potential waveform was used to elicit currents, the IC50 was 114 microM. Block of hERG by moxifloxacin was found to be voltage-dependent, occurred rapidly and was independent of stimulation frequency. Mutagenesis of the S6 helix residue Phe656 to Ala failed to eliminate or reduce the moxifloxacin-mediated block whereas mutation of Tyr652 to Ala reduced moxifloxacin block by approximately 66%. Our data demonstrate that moxifloxacin blocks the hERG channel with a preference for the activated channel state. The Tyr652 but not Phe656 S6 residue is involved in moxifloxacin block of hERG, concordant with an interaction in the channel inner cavity., The bactericidal action of moxifloxacin results from inhibition of the topoisomerase II (DNA gyrase) and topoisomerase IV required for bacterial DNA replication, transcription, repair, and recombination. It appears that the C8-methoxy moiety contributes to enhanced activity and lower selection of resistant mutants of Gram-positive bacteria compared to the C8-H moiety. The presence of the bulky bicycloamine substituent at the C-7 position prevents active efflux, associated with the NorA or pmrA genes seen in certain Gram-positive bacteria., Torsade de pointes (TdP) is increasingly recognized as a complication of drug therapy. The most common cause of drug-induced QT prolongation is inhibition of the rapidly activating component of the delayed potassium current (I(Kr)). Moxifloxacin, a widely used fluoroquinolone, is a weak I(Kr) inhibitor and has been associated with QT prolongation., Fluoroquinolones prolong the QT interval by blocking voltage-gated potassium channels, especially the rapid component of the delayed rectifier potassium current I(Kr), expressed by HERG (the human ether-a-go-go-related gene). According to the available case reports and clinical studies, moxifloxacin carries the greatest risk of QT prolongation from all available quinolones in clinical practice and it should be used with caution in patients with predisposing factors for Torsades de pointes (TdP).
Record name Moxifloxacin
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Record name Moxifloxacin
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CAS No.

151096-09-2, 354812-41-2
Record name Moxifloxacin
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Record name Moxifloxacin [INN:BAN]
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Record name 3-Quinolinecarboxylic acid, 1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo
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Record name Moxifloxacin
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Melting Point

238-242 °C, 208-209 °C (decomposes), 238 - 242 °C
Record name Moxifloxacin
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Record name Moxifloxacin
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Description The Hazardous Substances Data Bank (HSDB) is a toxicology database that focuses on the toxicology of potentially hazardous chemicals. It provides information on human exposure, industrial hygiene, emergency handling procedures, environmental fate, regulatory requirements, nanomaterials, and related areas. The information in HSDB has been assessed by a Scientific Review Panel.
Record name Moxifloxacin
Source Human Metabolome Database (HMDB)
URL http://www.hmdb.ca/metabolites/HMDB0014363
Description The Human Metabolome Database (HMDB) is a freely available electronic database containing detailed information about small molecule metabolites found in the human body.
Explanation HMDB is offered to the public as a freely available resource. Use and re-distribution of the data, in whole or in part, for commercial purposes requires explicit permission of the authors and explicit acknowledgment of the source material (HMDB) and the original publication (see the HMDB citing page). We ask that users who download significant portions of the database cite the HMDB paper in any resulting publications.

Retrosynthesis Analysis

AI-Powered Synthesis Planning: Our tool employs the Template_relevance Pistachio, Template_relevance Bkms_metabolic, Template_relevance Pistachio_ringbreaker, Template_relevance Reaxys, Template_relevance Reaxys_biocatalysis model, leveraging a vast database of chemical reactions to predict feasible synthetic routes.

One-Step Synthesis Focus: Specifically designed for one-step synthesis, it provides concise and direct routes for your target compounds, streamlining the synthesis process.

Accurate Predictions: Utilizing the extensive PISTACHIO, BKMS_METABOLIC, PISTACHIO_RINGBREAKER, REAXYS, REAXYS_BIOCATALYSIS database, our tool offers high-accuracy predictions, reflecting the latest in chemical research and data.

Strategy Settings

Precursor scoring Relevance Heuristic
Min. plausibility 0.01
Model Template_relevance
Template Set Pistachio/Bkms_metabolic/Pistachio_ringbreaker/Reaxys/Reaxys_biocatalysis
Top-N result to add to graph 6

Feasible Synthetic Routes

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