Bioactive cembrane-based diterpenoids from the soft coral Sinularia triangular.

Abstract:

:Chemical examination of the Taiwanese soft coral Sinularia triangular led to the isolation of five cembrane-based diterpenoids 1-5, including two new metabolites, triangulenes A (1) and B (2). The structures of the new metabolites were determined on the basis of extensive spectroscopic analysis, particularly mass spectroscopy and 2D NMR ((1)H-(1)H COSY, HMQC, HMBC, and NOESY) spectroscopy. Metabolites 3 and 5 exhibited moderate cytotoxicity to human tumor cell lines CCRF-CEM and DLD-1. Furthermore, 3-5 displayed significant in vitro anti-inflammatory activity in lipopolysaccharide-stimulated RAW264.7 macrophage cells by inhibiting the expression of the iNOS protein. Metabolites 4 and 5 also effectively reduced the expression of the COX-2 protein in the macrophages.

journal_name

Mar Drugs

journal_title

Marine drugs

authors

Su JH,Wen ZH

doi

10.3390/md9060944

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

944-51

issue

6

issn

1660-3397

pii

marinedrugs-09-00944

journal_volume

9

pub_type

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