Sulfur-containing polybromoindoles from the formosan red alga Laurencia brongniartii

Ali A. El-Gamal, Wei Lung Wang, Chang Yih Duh

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Five new sulfur-containing polybromoindoles, 2-methylsulfinyl-3-methylthio- 4,5,6-tribromoindole (1), 3-methylsulfinyl-2,4,6-tribromoindole (2), 4,6-dibromo-2,3-di(methylsulfinyl)indole (3), 3,3′-bis(2′- methylsulfinyl-2-methylthio-4,6,4′,6′-tetrabromo)indole (4), and 3,3-bis(4,6-dibromo-2-methylsulfinyl)indole (5), as well as seven known sulfur-containing polybromoindoles, 3-methylthio-2,4,6-tribromoindole (6), 3-methylthio-2,4,5,6-tetrabromoindole (7), 4,6-dibromo-2,3-di(methylthio)indole (8), 2,3-di(methylthio)-4,5,6-tribromoindole (9), 4,6-dibromo-2-methylsulfinyl- 3-(methylthio)indole (10), 4,6-dibromo-2-(methylthio)indole (11), and 3,3-bis(4,6-dibromo-2-methylthio)indole (12), have been isolated from the Formosan red alga Laurencia brongniartii. The structures were elucidated by extensive spectral analysis, and their cytotoxicity against selected cancer cells was measured in vitro.

Original languageEnglish
Pages (from-to)815-817
Number of pages3
JournalJournal of Natural Products
Volume68
Issue number5
DOIs
Publication statusPublished - 2005 May 1

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry

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