Norcembranoidal diterpenes from the cultured-type octocoral Sinularia numerosa

Int J Mol Sci. 2015 Feb 3;16(2):3298-306. doi: 10.3390/ijms16023298.

Abstract

A known norcembranoidal diterpene, 5-episinuleptolide (1), along with a new analogue, 4α-hydroxy-5-episinuleptolide (2), were isolated from a cultured-type soft coral Sinularia numerosa. The structures of 1 and 2 were elucidated on the basis of spectroscopic methods and by comparison of the data with those of the related metabolites. Cytotoxicity of metabolites 1 and 2 against a panel of tumor cells is also described. Compound 2 exhibited moderate cytotoxicity toward CCRF-CEM cells with an IC50 value 4.21 μg/mL. Preliminary SAR (structure activity relationship) information was obtained from these two compounds.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthozoa / chemistry*
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Diterpenes / chemistry*
  • Diterpenes / isolation & purification
  • Diterpenes / pharmacology
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular

Substances

  • Diterpenes