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New Cytotoxic Secondary Metabolites Against Human Pancreatic Cancer Cells From the Hypericum Perforatum Endophytic Fungus Aspergillus Terreus

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Four new compounds, including two lovastatin analogues, terrstatins A and B (1 and 2), and a pair of butenolide derivatives, (±)-asperteretone F (3a/3b), along with eleven known compounds (414), were isolated from the Hypericum perforatum endophytic fungus Aspergillus terreus.

Their structures and absolute configurations were determined based on extensive spectroscopic analysis, experimental and calculated electronic circular dichroism (ECD) analysis. All isolates were evaluated for cytotoxic activities against five human cancer cell lines, and compounds 3a/3b and 6 showed potential cytotoxic activities against human pancreatic cancer cells, including AsPC-1, SW1990 and PANC-1 cells, with IC50 values ranging from 1.2 to 15.6 μM. Read more . . . 

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