Abstract:Five furanoids including a new analog (S)-1,4-di(furan-2-yl)-2-hydroxybutane-1,4-dione (1) together with four known ones, rhizosolaniol (2), 5-hydroxymethylfurfural (3), 2-furoic acid (4) and (2-furyl) oxoacetamide (5), were isolated from the fungal strain Ceratobasidium sp. (GS2) inducing seed germination of the endangered medicinal plant Gymnadenia conopsea of Orchidaceae. The structure of new furanoid 1 was determined mainly based on HR-ESI-MS and NMR spectral data. Modified Mosher’s reactions were used to … Show more
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