Riassunto
Viene descritto l'isolamento del 2-tetraprenil-1,4-benzochinone, del corrispondente idrochinone e dell' acido 4-idrossi-3-tetraprenilbenzoico dalla spugnaIrcinia muscarum. Il rinvenimento di quest'ultimo suggerisce che il precursore dell'anello dei chinoni prenilati non sostituiti e dei loro corrispondenti idrochinoni, ritrovati nelle spugne, sia l'acidop-idrossibenzoico, come nel caso degli ubichinoni. Vengono, inoltre, riportate alcune considerazioni sulle possibili relazioni biogenetiche nelle spugne tra gli ubichinoni e questi insoliti chinoni.
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Literatur
G. Cimino, S. De Stefano andL. Minale, Tetrahedron28, 1315 (1972).
The sponge collected in the bay of Naples was obtained from the supply department of the Zoological Station (Naples) and identified by ProfessorM. Sarà (University of Genova), to whom the authors express their thanks.
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Ubiquinone-10 has been identified by direct comparison with an authentic sample kindly given by Dr.R. Azerard (University of Paris, F-91 Orsay, France), who also supplied samples of Q-6 and Q-9.
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Cimino, G., De Stefano, S. & Minale, L. Prenylated quinones in marine sponges:Ircinia sp. Experientia 28, 1401–1402 (1972). https://doi.org/10.1007/BF01957811
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DOI: https://doi.org/10.1007/BF01957811