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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Studies of Australian Soft Corals. XLIV. New Diterpenes From Sinularia polydactyla (Coelenterata, Anthozoa, Octocorallia)

BF Bowden, JC Coll and AD Wright

Australian Journal of Chemistry 42(5) 757 - 763
Published: 1989

Abstract

The soft coral Sinularia polydactyla has yielded six highly functionalized diterpenes. The known diterpenes pukalide (2) and 1-epithunbergol (3) were readily identified by spectral comparison with authentic samples. The new natural products 13 α-acetoxy-11β, 12β-epoxypukalide (4),13 α-acetoxypukalide (5) and its allylically rearranged isomer (6) were identified on the basis of 2D-n.m.r. experiments at 300 MHz and by spectral comparison with the known compounds pukalide (21, lophotoxin (8) and epoxypukalide (9). A minor, relatively unstable metabolite (7) is tentatively identified as a 3,4:5,6-bisepoxy derivative of (6). The biological implications of these findings are discussed.

https://doi.org/10.1071/CH9890757

© CSIRO 1989

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