Author:
Gill Melvyn,Smrdel Albin F.
Abstract
The tetrahydroanthraquinones
(1S,3S)-austrocortirubin (7) and
(1S,3S)-austrocortilutein (10) and
the anthraquinones austrocortinin (13), xanthorin (14) and
3-methylxanthopurpurin 6-O-methyl ether (15) occur in
the fungus Dermocybe splendida mainly in the form of
their respective 8-O-β-D-gentiobiosides (26), (11),
(16), (19) and (22) (gentiobiose =
6-O-β-D-glucopyranosyl-β-D-glucopyranose). The
various gentiobiosides are isolated from lyophilized fruit bodies, separated
by chromatography and characterized, in the main, as their acetyl derivatives
by spectroscopic and chemical methods. Amethod for the selective cleavage of
phenolic acetyl groups in peracetylated anthraquinone and
tetrahydroanthraquinone glycosides is described.
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