Alkaloidal and other constituents from the root bark of Clausena excavata

Tian Shung Wu, Shiow Chyn Huang, Pei Lin Wu, Chang Sheng Kuoh

Research output: Contribution to journalArticlepeer-review

97 Citations (Scopus)


Ten new carbazole alkaloids, clausine-M, -N, -O, -P, -Q, -R, -S, -U, -V and clausenatine-A, together with 39 known compounds were isolated and identified from the acetone extract of the root bark of Clausena excavata. Their structures have been elucidated by spectroscopic analyses. This is the first report of a decarboxylated carbazole alkaloid from a natural source. The presence of a C(23)-skeleton carbazole alkaloid in a plant of Clausena genus is also reported for the first time.

Original languageEnglish
Pages (from-to)523-527
Number of pages5
Issue number3
Publication statusPublished - 1999 Oct

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture


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