Several new isoprenoids from the soft coral sinularia erecta
Eight compounds were isolated from the Indo-Pacific soft coral Sinularia erecta (Tixier-Durivault, 1945) collected from the lagoon of Mayotte, Comoros Islands, northwest of Madagascar. Four of the compounds, namely the sesquiterpene germacrene D, the diterpenoids nephthenol and decaryiol, and norcembrene, are known. The other four are the new secondary metabolites germacrene E (1), epi-norcembrene (3), and two bis-pukalide diterpenes, mayotolides A and B (4 and 5). The structure of each of the compounds was determined by means of 1D and 2D NMR and MS spectroscopy in addition to some chemical transformations.
School of Chemistry, Tel Aviv University, Ramat Aviv 69978, Israel, IUEM, Allie des Aigues Marines, 97487 Saint-Denis La Reunion, France, and Universite de Droot, d'Economie et des Sciences d'Aix, Marseille III, France.
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Rudi
Lev-Ari Dayan T
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Aknin
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Gaydou
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Kashman