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[Monomeric Indole Alkaloids from Kopsia officinalis.].
Ten monomeric indole alkaloids have been identified from the roots of KOPSIA OFFICINALIS. Four of them are known: (-)-kopsinine 1, (+)-5,22-dioxokopsane 2, (-)-tetrahydroalstonine 4, andExpand
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New 1-O-acyl alpha-L-rhamnopyranosides and rhamnosylated lactones from Streptomyces sp., inhibitors of 3 alpha-hydroxysteroid-dehydrogenase (3alpha-HSD).
Chemical screening with extracts of Streptomyces sp. (strain GT 61150) resulted in the detection, isolation, and structure elucidation of two new acyl alpha-L-rhamnopyranosides (1 and 2) and threeExpand
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[Chemical investigation of genus Hedyotis. II. Isolation and identification of iridoids from Hedyotis chrysotricha].
Many species of genus Hedyotis (Rubiaceae) were used as folk medicine for treatment of cold, inflammation, cancer and etc. in China. The alcoholic extract of the whole plant of H. chrysotricha showedExpand
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Chemical constituents of Armillaria mellea mycelium. I. Isolation and characterization of armillarin and armillaridin.
Two new sesquiterpenoid aromatic esters, armillarin and armillaridin, have been isolated from the artificially cultured mycelium of ARMILLARIA MELLEA (Vahl. ex Fr.) Quel. (Tricholometaceae). On theExpand
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Isolation and structure elucidation of armillaricin1.
From the petroleum ether extracts of the artificially cultured mycelium of ARMILLARIA MELLEA, a novel sesquiterpenoid aromatic ester named armillaricin has been isolated by silica gel columnExpand
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Isolation and structures of two new sesquiterpenoid aromatic esters: armillarigin and armillarikin1.
The continued investigation of the mycelial extract of ARMILLARIA MELLEA (Vahl.ex Fr.) Quel. (Tricholomelaceae) led to the isolation of two new sesquiterpenoid aromatic esters, named armillarigin (Expand
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Monomeric Indole Alkaloids from Ervatamia hainanensis.
Eleven monomeric indole alkaloids have been isolated from the roots of Ervatamia hainanensis. Nine of them are known: coronaridine 1, coronaridine hydroxyindolenine 2, heyneanine 3, vobasine 4,Expand
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Two Novel Protoilludane Norsesquiterpenoid Esters, Armillasin and Armillatin, from Armillaria mellea.
Two novel protoilludane norsesquiterpenoid esters, named armillasin and armillatin, have been isolated from the artificially cultured mycelium of ARMILLARIA MELLEA (Tricholomataceae). TheirExpand
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Feigrisolides A, B, C and D, new lactones with antibacterial activities from Streptomyces griseus.
Four new lactone compounds, named feigrisolides A to D (1 to 4), have been isolated from Streptomyces griseus. The chemical structures were determined by detail analysis of their spectroscopic dataExpand
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[New oxindole alkaloid glycosides from Uncaria sinensis].
Two 16-carboxy derivatives of pentacyclic oxindole alkaloids and its glucopyranosyl esters have been isolated from the ethanolic extract of the leaves of Uncaria sinensis (Olive.) Havil. TheseExpand
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