Studies of Australian soft corals. VII. Two new diterpenes from an unknown species of soft coral (genus Lobophytum)
BF Bowden, JC Coll, SJ Mitchell and GJ Stokie
Australian Journal of Chemistry
31(6) 1303 - 1312
Two new diterpenes have been isolated from a soft coral of the genus Lobophytum. One is shown to be a cembranolide diterpene (1) containing a novel a-keto epoxide grouping while the second compound (2) is unique in the soft coral literature in that it possesses a 13-membered carbocyclic ring. This was presumably derived from rearrangement of (1) within the coral. The structure assignments rely heavily on spectroscopy, but are consistent with chemical transformations.
Full text doi:10.1071/CH9781303
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