New Cladiellane Diterpenes from the Soft Coral Cladiella australis of the Andaman and Nicobar Islands

Five new cladiellane diterpenes, (1R*,2R*,3R*,6S*,7S*,9R*,10R*,14R*)-3- acetoxy-6-(3-methylbutanoyloxy)cladiell-11(17)-en-7-ol [2], (1R*,2R*,3R*,6S*,7S*,9R*, 10R*,14R*)-3-butanoyloxycladiell-11(17)-en-6,7-diol [3], (1R*,2R*,3R*,6S*,9R*,10R*,14R*)-3-acetoxycladiell-7(16),11(1 7)-dien-6-ol [4], 3-acet...

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Veröffentlicht in:	Journal of natural products (Washington, D.C.) D.C.), 1994-05, Vol.57 (5), p.574-580
Hauptverfasser:	Rao, C. Bheemasankara, Rao, D. Sreenivasa, Satyanarayana, C, Rao, D. Venkata, Kassühlke, Katharina E, Faulkner, D. John
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetylation ANDAMAN AND NICOBAR ISLANDS ANIMAL PRODUCTS Animals CHEMICAL COMPOSITION CHEMISTRY CHIMIE Cnidaria - metabolism COELENTERATA COMPOSICION QUIMICA COMPOSITION CHIMIQUE Diterpenes - chemistry Diterpenes - isolation & purification DITERPENOIDE DITERPENOIDS DITERPENOS ESPECTROMETRIA ILES ANDAMAN ET NICOBAR INDIAN OCEAN ISLAS DE ANDAMAN Y NICOBAR Magnetic Resonance Spectroscopy Mass Spectrometry MOLECULAR CONFORMATION MOLECULAR STRUCTURE OCEAN INDIEN OCEANO INDICO PRODUCTOS DE ORIGEN ANIMAL PRODUIT ANIMAL QUIMICA SPECTRAL ANALYSIS SPECTROMETRIE SPECTROMETRY STEREOCHEMISTRY Stereoisomerism
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Zusammenfassung:	Five new cladiellane diterpenes, (1R,2R,3R,6S,7S,9R,10R,14R)-3- acetoxy-6-(3-methylbutanoyloxy)cladiell-11(17)-en-7-ol [2], (1R,2R,3R,6S,7S,9R, 10R,14R)-3-butanoyloxycladiell-11(17)-en-6,7-diol [3], (1R,2R,3R,6S,9R,10R,14R*)-3-acetoxycladiell-7(16),11(1 7)-dien-6-ol [4], 3-acetoxycladiell-11(17)-en-6-one [5], and its stereoisomer [6], have been isolated from the soft coral Cladiella australis collected on the coasts of the Andaman and Nicobar Islands of the Indian Ocean. In addition, sclerophytins C [7] and E [8], reported earlier from Sclerophytum capitalis, were also isolated. The structures of these metabolites were elucidated by interpretation of spectral data.
ISSN:	0163-3864 1520-6025
DOI:	10.1021/np50107a002