Six new metabolites from the brown alga halidrys siliquosa (phaeophyta,fucales) |
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| Authors: | MD Higgs LJ Mulheirn |
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| Institution: | Shell Research Limited, Shell Biosciences Laboratory, Sittingbourne Research Centre, Sittingbourne, Kent, ME9 8AG, England |
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| Abstract: | Six monomethyl hydroquinols with oxygenated diterpene side chains have been isolated from the brown alga Halidrys siliquosa. We have isolated 5',12'-dioxohalidrol (1), 5',12'-dioxoisohalidrol (2), 12'α-hydroxy-5',13'- dioxohalidrol (3), 12'α-hydroxy-5',13'-dioxoisohalidrol (4), 12'β-hydroxy-5',13'-dioxoisohalidrol (5) and 5'-hydroxy-12-oxohalidrol (6). |
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