摘要
Chemical investigation of the soft coral Lobophytum durum resulted in the isolation of seven new cembranolides, durumolides F-L (1-7), as well as one previously characterized cembranolides, sinularolide D (8). The molecular structures of these isolated metabolites were determined mainly through NMR techniques and HRESIMS analysis. Moreover, the absolute configurations of 1 and 5 were established by application of modified Mosher's method. The antibacterial activities, anti-inflammatory effects, and anti-HCMV (Human cytomegalovirus) endonuclease activity of metabolites 1-8 were also evaluated in vitro. Anti-inflammatory activity of metabolites 1 and 6 (10 mu M) significantly reduced the levels of the iNOS protein to 0.8 +/- 0.6% and 5.7 +/- 2.2%, respectively, and COX-2 protein to 47.8 +/- 9.0% and 71.6 +/- 5.8%, respectively. Metabolites 1-8 (100 mu g/disk) exhibited weak antibacterial activity against Salmonella enteritidis.
- 出版日期2009-6-1
- 单位中山大学