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The constituents of Scirpus fluviatilis(Torr). A. Gray. I. The structures of two new hydroxystilbene dimers, scirpusin A and B.
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1978
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PhytoalexinMedicinal ChemistryBiosynthesisBioorganic ChemistryScirpus FluviatilisBiochemistryNew Hydroxystilbene DimersScirpusin ANatural SciencesEngineeringBiochemical TaxonomyFluorous SynthesisOrganic ChemistryPhytochemistryPharmacologyBiomolecular EngineeringNatural Product Synthesis
Two new hydroxystilbene dimers, named scirpusin A (1) and B (12), were isolated from the rhizoma of Scirpus fluviatilis (TORR.) A. GRAY (Cyperaceae) together with two known hydroxystilbenes, resveratrol and 3, 3', 4, 5'-tetrahydroxystilbene, and four known triterpens, betulin, lupeol, betulinaldehyde and betulinic acid. The structures of scirpusin A and B were elucidated to be 1 and 12, respectively, by chemical and spectral evidence.