Pilzpigmente, IX. Anthrachinon‐Pigmente aus Dermocybe cinnabarina (Fr.) Wünsche

Abstract

Aus Dermocybe cinnabarina wurden nach saurer Hydrolyse der Pigmentglykoside neben Physcion (l), Erythroglaucin (2), Fallacinol (3), wO-Acetyl-fallacinol (4) und Endocrocin (5) die neuen Anthrachinon-carbonsauren Cinnalutein (6) und Cinnarubin (7) isoliert. Mushroom Pigments, M l) Anthraquinone Pigments from Dermcybe cinnaburinaAfter acid hydrolysis of the glycoside pigments from Dermocybe cinnabarina, physcion (I), erythroglaucin (2), fallacinol (3), oi-0-acetylfallacinol (4), endocrocin (S), and the new anthraquinone carboxylic acids cinnalutein (6) and cinnarubin (7) were isolated.

Two-Dimensional TLC Separation and Mass Spectrometric Identification of Anthraquinones Isolated from the Fungus Dermocybe sanguinea

“…Thin-layer chromatography has been widely used to separate various substituted anthraqui nones occurring in the genera Cortinarius and D erm ocybe* (Steglich et al, 1969(Steglich et al, , 1972a(Steglich et al, , 1972bG ruber, 1970;Keller, 1982;H 0 iland, 1983;Keller and Ammirati, 1983;Steglich and Oertel, 1984;Kidd et al, 1985;Gill and Steglich, 1987;Keller et al, 1987). Because different species seem to pos sess anthraquinone compounds, that are charac teristic of the species, TLC analysis of the pig ments can be applied as an aid to identification and classification of these genera.…”

“…Also D erm ocybe -species occurring in Am erica (Keller and Ammirati, 1983) and Aus * There is disagreement about the rank of D erm ocybe in the systematical hierarchy, where it has been re garded as a subgenus of Cortinarius or a genus of its own. In chemical publications (Steglich et al, 1969(Steglich et al, , 1972a(Steglich et al, , 1972bGill and Steglich, 1987;Gill, 1995), D er m ocybe has been regarded as a genus of its own and the same ranking is used in this article, although Scan tralia (Keller et al, 1987;Gill, 1995) have been studied. Various solvent systems have been reported for one-dimensional (ID ) TLC separations of anthraquinones and other natural products occur ring in fungi.…”

“…Various solvent systems have been reported for one-dimensional (ID ) TLC separations of anthraquinones and other natural products occur ring in fungi. In most studies (Steglich et al, 1969(Steglich et al, , 1972a(Steglich et al, , 1972bKeller, 1982;H 0 iland, 1983;Keller and Ammirati, 1983;Steglich and Oertel, 1984;Kidd et al, 1985;Keller et al, 1987;Gill and Steg lich, 1987;Buchanan et al, 1998) different mix tures of benzene (or toluene), ethyl formate and formic acid were used as solvent systems. , v/v/v) was first used for paper chromatography (Gruber, 1970) and the solvent system was modified later for cel lulose TLC replacing isoamylalcohol with «-buta nol (Keller, 1982;Keller et al, 1987).…”

Pigments of Fungi. LXV. Tetrahydroanthraquinone and Anthraquinone Gentiobiosides from the Fungus Dermocybe splendida

“…As demonstrated here, the use of methanolic or ethanolic hydrochloric acid, for example, 32 during the extraction of pigments has potential problems when the substances are prone to glycolysis and/or dehydration. In those circumstances where the deliberate hydrolysis of glycosidic derivatives in an extract is desirable in order to yield chromatographically mobile materials, [33][34][35] the prospect of other, less desirable, reactions taking place should be borne in mind. The increasing use of the chemotaxonomic method is dependent for its continued growth on a reliable foundation of structural knowledge.…”

Pigments of Fungi, Part 27. New Xanthorin Derivatives from a Fungus of the Genus Dermocybe

“…is only the second example from within the large group of Cortinarius and Dermocybe pigments of an anthraquinone bearing angroup. The other is fallacinol, which occurs along with its -0-acetyl derivative in Dermocybe cinnabarina(13).EXPERIMENTAL General experimental procedures.-'H-nmr spectra were measured at 399.65 MHz on a JEOL JNM-GX 400 spectrophotometer for solutions in CDC13. Ei (70 eV) mass spectra were obtained wth a V.G.…”