Frajunolides E-K, briarane diterpenes from Junceella fragilis

J Nat Prod. 2008 Sep;71(9):1551-6. doi: 10.1021/np800126f. Epub 2008 Sep 6.

Abstract

Chemical investigation of the gorgonian octocoral Junceella fragilis, collected in Taiwan, resulted in the isolation of seven new briarane-type diterpenes, frajunolides E-K (1-7), in addition to 14 known briaranes, praelolide, junceellin, junceellolides A-E, and K, 11a,20a-epoxy-4-deacetoxyjunceelolide D, umbraculolide A, junceellonoid A, and juncins Y, Z, and ZI, as well as ergosterol peroxide. The structures of 1-7 were determined by analysis of HRESIMS and 2D NMR spectroscopic data. Cytotoxicity and in vitro anti-inflammatory activities of compounds 1-7 were also evaluated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthozoa / chemistry*
  • Anti-Inflammatory Agents, Non-Steroidal / chemistry
  • Anti-Inflammatory Agents, Non-Steroidal / isolation & purification*
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacology
  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / isolation & purification*
  • Antineoplastic Agents / pharmacology
  • Diterpenes / chemistry*
  • Diterpenes / isolation & purification*
  • Diterpenes / pharmacology
  • Drug Screening Assays, Antitumor
  • Genistein / pharmacology
  • Humans
  • Molecular Structure
  • Neutrophils / drug effects
  • Neutrophils / enzymology
  • Nuclear Magnetic Resonance, Biomolecular
  • Pancreatic Elastase / biosynthesis
  • Pancreatic Elastase / drug effects
  • Taiwan

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Antineoplastic Agents
  • Diterpenes
  • Genistein
  • Pancreatic Elastase