2,6-Cyclo-xenicanes from the brown algae Dilophus fasciola and Dilophus spiralis

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• 作者：Efstathia Ioannou ; Maria Zervou ; Amel Ismail ; Leila Ktari ; Constantinos Vagias ; Vassilios Roussis
• 关键词：Dilophus fasciola ; Dilophus spiralis ; 2 ; 6-cyclo-Xenicanes ; Molecular modelling
• 刊名：Tetrahedron
• 出版年：2009
• 出版时间：19 December 2009
• 年：2009
• 卷：65
• 期：51
• 页码：10565-10572
• 全文大小：617 K

文摘

Seven new diterpenes, featuring the rare 2,6-cyclo-xenicane skeleton, along with eleven previously reported metabolites were isolated from the organic extracts of the brown algae Dilophus fasciola and Dilophus spiralis. The structure elucidation of the isolated natural products was based on detailed analyses of their spectroscopic data (NMR, MS, IR, UV), whereas the assignment of their relative configurations was assisted by molecular modelling studies.