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Bioactivity guided phytochemical investigation of the ethanol extract of the medullae of Juncus effusus resulted in the isolation of two new phenanthrenes, 8-hydroxymethyl-2-hydroxyl-1-methyl-5-vinyl-9,10-dihydrophenanthrene (1), and 5-(1-methoxyethyl)-1-methyl-phenanthren-2,7-diol (2) together with 15 known phenanthrenoids (3–17). The chemical structures of 1 and 2 were established by a combination...
Four new phenanthrenoid dimers, effususins A–D (1–4), were isolated from an ethanolic extract of the medullae of Juncus effuses (Juncaceae). Their structures were elucidated by 1D and 2D NMR spectroscopic analysis and mass spectrometry. Compounds 1–4 was in vitro evaluated for their cytotoxic activities by CCK-8 assay against five human cancer cell lines (SHSY-5Y, SMMC-7721, HepG2, Hela, and MCF-7)...
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