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Two new cytosporone derivatives (1 and 2) were isolated from the endophytic fungus Phomopsis sp. PSU-H188 together with 19 known compounds. Their structures were elucidated by analysis of spectroscopic data. Known mycoepoxydiene showed potent cytotoxic activity towards both MCF-7 and noncancerous Vero cell lines with the respective IC50 values of 9.27 and 4.06μM. It exhibited inhibition on glucose...
Two new curvularin derivatives, curvulopyran (1) and ent-curvulone A (2), along with ten known compounds including five cytochalasins and five curvularins, were isolated from a culture broth of the soil-derived fungus Aspergillus polyporicola PSU-RSPG187. Their structures were determined by spectroscopic methods. Known aspochalasin D displayed moderate antifungal activity against flucytosine–resistant...
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