Zafirlukast

CAS No:
107753-78-6 Categories: , ,
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Product Details:

  • CAS No: 107753-78-6
  • AHFC code: 48:10.2
  • Synonyms:
  • ATC Code: R03DC01
  • Chemical Formula: C9H13N3O3
  • Molecular Weight: 575.675
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB00549 (APRD00377)
  • SMILES: COC1=C(CC2=CN(C)C3=C2C=C(NC(=O)OC2CCCC2)C=C3)C=CC(=C1)C(=O)NS(=O)(=O)C1=CC=CC=C1C
  • InChl: YEEZWCHGZNKEEK-UHFFFAOYSA-N
  • PubChem: 5717
  • IUPAC: cyclopentyl N-{3-[(2-methoxy-4-{[(2-methylbenzene)sulfonyl]carbamoyl}phenyl)methyl]-1-methyl-1H-indol-5-yl}carbamate

Additional Details

Indication:
For the prophylaxis and chronic treatment of asthma.
Pharmacodynamics:
Zafirlukast is a synthetic, selective peptide leukotriene receptor antagonist (LTRA) indicated for the prophylaxis and chronic treatment of asthma. Patients with asthma were found in one study to be 25-100 times more sensitive to the bronchoconstricting activity of inhaled LTD4 than nonasthmatic subjects. In vitro studies demonstrated that zafirlukast antagonized the contractile activity of three leukotrienes (LTC4, LTD4 and LTE4) in conducting airway smooth muscle from laboratory animals and humans. Zafirlukast prevented intradermal LTD4-induced increases in cutaneous vascular permeability and inhibited inhaled LTD4-induced influx of eosinophils into animal lungs.
Mode of Action:
Zafirlukast is a selective and competitive receptor antagonist of leukotriene D_ and E_ (LTD_ and LTE_), components of slow-reacting substance of anaphylaxis (SRSA). Cysteinyl leukotriene production and receptor occupation have been correlated with the pathophysiology of asthma, including airway edema, smooth muscle constriction, and altered cellular activity associated with the inflammatory process, which contribute to the signs and symptoms of asthma.
Metabolism:
Hepatic
Toxicity:
Side effects include rash and upset stomach.
General Reference:
Products currently covered by valid US Patents are offered for R&D use in accordance with 35 USC 271(e)+A13(1). Any patent infringement and resulting liability is solely at buyer risk.

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