Pirquinozol

Pirquinozol (SQ-13,847) is a drug which was investigated as an antiallergen and antiasthmatic agent in the early 1980s but was never marketed.[1][2][3] Notably, pirquinozol is not an antihistamine, though it does block the release of histamine evoked by allergens, and it does not bind to β-adrenergic receptors either.[1]

Pirquinozol
Clinical data
Routes of
administration
Oral
ATC code
  • none
Legal status
Legal status
  • In general: uncontrolled
Identifiers
IUPAC name
  • 2-(hydroxymethyl)pyrazolo[1,5-c]quinazolin-5(6H)-one
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC11H9N3O2
Molar mass215.212 g·mol−1
3D model (JSmol)
SMILES
  • OCc1cc2c3ccccc3NC(=O)n2n1

References

  1. Free CA, Hall LE (June 1980). "Antiallergic properties of SQ 13,847, an orally effective agent. II. Activity in vitro". The Journal of Pharmacology and Experimental Therapeutics. 213 (3): 437–40. PMID 6162946.
  2. Casey FB, Abboa-Offei BE, Marretta J (June 1980). "Antiallergic properties of SQ 13,847, an orally effective agent. I. Activity in vivo". The Journal of Pharmacology and Experimental Therapeutics. 213 (3): 432–6. PMID 7205610.
  3. Casey FB, Abboa-Offei BE (June 1983). "Anti-allergic properties of pirquinozol (SQ 13,847) an orally effective agent. Evaluation in an anti-IgE-induced pulmonary function model in rats". The Journal of Pharmacy and Pharmacology. 35 (6): 394–6. doi:10.1111/j.2042-7158.1983.tb02967.x. PMID 6135784. S2CID 7790125.
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