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Literature DB >> 7914912

New cladiellane diterpenes from the soft coral Cladiella australis of the Andaman and Nicobar Islands.

C B Rao¹, D S Rao, C Satyanarayana, D V Rao, K E Kassühlke, D J Faulkner.

Abstract

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.

Entities: Chemical Species

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Year: 1994 PMID： 7914912 DOI： 10.1021/np50107a002

Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050

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Cited

6 in total

1. A unified strategy for enantioselective total synthesis of cladiellin and briarellin diterpenes: total synthesis of briarellins E and F and the putative structure of alcyonin and revision of its structure assignment.

Authors: Olivier Corminboeuf; Larry E Overman; Lewis D Pennington
Journal: J Org Chem Date: 2009-08-07 Impact factor: 4.354

New cladiellane diterpenes from the soft coral Cladiella australis of the Andaman and Nicobar Islands.

1. A unified strategy for enantioselective total synthesis of cladiellin and briarellin diterpenes: total synthesis of briarellins E and F and the putative structure of alcyonin and revision of its structure assignment.

2. Bioactive eunicellin-based diterpenoids from the soft coral Cladiella krempfi.

3. Eunicellin-Based Diterpenoids, Hirsutalins S-V, from the Formosan Soft Coral Cladiella hirsuta.

4. Eunicellin-based diterpenoids, hirsutalins N-R, from the formosan soft coral Cladiella hirsuta.

5. Krempfielins J-M, new eunicellin-based diterpenoids from the soft coral Cladiella krempfi.

6. Cytotoxic and anti-inflammatory eunicellin-based diterpenoids from the soft coral Cladiella krempfi.