Curtisians E-H: four p-terphenyl derivatives from the inedible mushroom Paxillus curtisii |
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Authors: | Quang Dang Ngoc Hashimoto Toshihiro Nukada Makiko Yamamoto Isao Tanaka Masami Asakawa Yoshinori |
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Affiliation: | Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan. |
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Abstract: | Four p-terphenyl derivatives named curtisians E-H (1-4) were isolated from the methanolic extract of fruit bodies of the Basidiomycete Paxillus curtisii by a combination of Sephadex LH-20, silica gel column chromatography and preparative reversed phase HPLC. The relative stereochemistries of the curtisians were elucidated by 2D NMR, MS, IR and UV spectroscopy with the absolute configurations at C(3a-3d) of the side chains being established as S by GC-MS on a chiral column previously used for separation of authentic standards. |
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Keywords: | Paxillus curtisii Paxillaceace Curtisian Fungus Basidiomycete p-Terphenyl |
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