Synthesis and evaluation of 2-(5-methoxythiophen-3-yl)ethylamines as potential dopamine agonists

M. Cardellini, GM Cingolani, F. Claudi, A. Di Stefano, G. Giorgioni, F. Cantalamessa, A. Cagnotto, M. Skorupska

Research output: Contribution to journalArticlepeer-review


The synthesis of 2-(5-methoxythiophen-3-yl)ethylamine and some derivatives bearing propyl and 2-phenylethyl substituents on the amino group has been described. The affinities for dopamine D1 and D2 receptors were evaluated by binding assays on rat striatum. None of the compounds show affinity for the D1 receptor. In the D2 binding assays the N-propyl-N-(2-phenylethyl) derivatives show affinity similar to that of the reference compound N-n-propyl-N-(2-phenylethyl)-2-(3-hydroxyphenyl)ethylamine (1, RU 24213). In preliminary behavioral tests [2-(5-methoxythiophen-3-yl)ethyl]phenethylpropylamine behaves as a selective D2 agonist.

Original languageEnglish
Pages (from-to)423-429
Number of pages7
JournalEuropean Journal of Medicinal Chemistry
Issue number6
Publication statusPublished - 1994


  • dopamine D and D receptor binding
  • dopaminergic activity
  • N-substituted 2-(5-methoxythiophen-3-yl)ethylamines
  • synthesis

ASJC Scopus subject areas

  • Molecular Medicine
  • Organic Chemistry
  • Drug Discovery
  • Pharmaceutical Science


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