Anxiolytic activities of pentanthrene type heterocyclic compounds

T. Imamura, A. Noda*, S. Shibata, S. Watanabe, H. Noda, Y. Ono, S. Goto, Y. Inoue

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A series of pentanthrene type heterocyclic compounds were synthesized and evaluated for anxiolytic activities by three kinds of behavioral pharmacological tests. Several compounds showed anxiolytic activities. In particular, s-triazolo[3,4-a]phthalazine (Tri-P) and 3-propyl derivatives of Tri-P(PTP) showed remarkable activities, although the activities were slightly lower than those of diazepam. The results suggested that Tri-P or PTP is a useful lead compound for the development of the antianxietic agents. The relationship between the structure and anxiolytic activity, and the inducing mechanism of the activity was discussed.

Original languageEnglish
Pages (from-to)400-405
Number of pages6
JournalYakugaku Zasshi
Issue number5
Publication statusPublished - 1993
Externally publishedYes


  • anxiolytic activity
  • behavioral pharmacological test
  • pentanthrene type heterocyclic compound
  • s-triazolo[3,4-a]phthalazine

ASJC Scopus subject areas

  • Pharmacology
  • Pharmaceutical Science


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