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New briarane diterpenoids from Taiwanese soft coral: Briareum violacea

  • Chia Ching Liaw
  • , Yuan Bin Cheng
  • , Yun Sheng Lin
  • , Yao Haur Kuo
  • , Tsong Long Hwang
  • , Ya Ching Shen*
  • *Corresponding author for this work
  • National Taiwan University
  • National Sun Yat-sen University
  • Kaohsiung Medical University
  • Meiho University
  • National Research Institute of Chinese Medicine Taiwan

Research output: Contribution to journalJournal Article peer-review

20 Scopus citations

Abstract

Ten new briarane diterpenoids, briaviolides A-J (1-10), together with six known briaranes, solenolides A and D, excavatolide A, briaexcavatolide I, 4β-acetoxy-9-deacetystylatulide lactone and 9-deacetylstylatulide lactone, were isolated from the Taiwanese soft coral, Briareum violacea. Their structures were determined on the basis of spectroscopic data (1H- and 13C-NMR, 1H-1H COSY, HSQC, HMBC and NOESY), HR-MS and chemical methods. The absolute configuration of briaviolide A (1) was determined by X-ray crystallographic analysis. Compounds 5, 9 and derivative 11 showed moderate inhibitory activities on superoxide-anion generation and elastase release by human neutrophils in response to N-formyl-methionyl-leucyl-phenylalanine/Cytochalasin B (fMLP/CB).

Original languageEnglish
Pages (from-to)4677-4692
Number of pages16
JournalMarine Drugs
Volume12
Issue number8
DOIs
StatePublished - 01 08 2014

Bibliographical note

Publisher Copyright:
© 2014 by the authors; licensee MDPI, Basel, Switzerland.

Keywords

  • Anti-inflammatory activities
  • Briarane diterpenoids
  • Briareum violacea
  • Briaviolides

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