Three new isochromenes, (5-methoxy-7-prenyl-1-isochromen-3-yl)methanol (), 3-(3-(hydroxymethyl)-5-methoxy-1-isochromen-7-yl)propan-1-ol (), and (5-methoxy-7-methyl-1-isochromen-3-yl)methanol (), along with three known analogues (-) were isolated from the fermentation products of a -derived endophytic fungus . Their structures were elucidated by spectroscopic methods, including extensive 1 D and 2 D NMR techniques. Compounds - and were evaluated for their anti-tobacco mosaic virus (anti-TMV) activities.
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