2-Amino-6-chloro-3,4-dihydroquinazoline: A novel 5-HT3 receptor antagonist with antidepressant character

Małgorzata Dukat, Katie Alix, Jessica Worsham, Shailesh Khatri, Marvin K. Schulte

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

2-Amino-6-chloro-3,4-dihydroquinazoline HCl (A6CDQ, 4) binds at 5-HT 3 serotonin receptors and displays antidepressant-like action in the mouse tail suspension test (TST). Empirically, 4 was demonstrated to be a 5-HT3 receptor antagonist (two-electrode voltage clamp recordings using frog oocytes; IC50 = 0.26 μM), and one that should readily penetrate the blood-brain barrier (log P = 1.86). 5-HT3 receptor antagonists represent a potential approach to the development of new antidepressants, and 4 is an example of a structurally novel 5-HT3 receptor antagonist that is active in a preclinical antidepressant model (i.e., the mouse TST).

Original languageEnglish
Pages (from-to)5945-5948
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Volume23
Issue number21
DOIs
StatePublished - 1 Nov 2013
Externally publishedYes

Keywords

  • 5-HT receptors
  • Antagonists
  • Antidepressants
  • TST (tail suspension test)

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