The ardeemins are a new family of secondary metabolites produced by submerged fermentation of a fungus which was isolated from a soil sample collected in Brazil. Based on taxonomic studies, the producing culture was identified as Aspergillus fischeri var. brasiliensis strain AB 1826M-35.
Four ardeemin derivatives, 5-N-acetylardeemin (1), 5-N-acetyl-15bβ-hydroxyardeemin (2), 5-N-acetyl-15b-didehydroardeemin (3), and 5-N-acetyl-16α-hydroxyardeemin (4), were isolated from the fermentation broth of an endophytic Aspergillus fumigatus SPS-02 associated with Artemisia annua L. The
A small molecule, 15b-β-hydroxy-5-N-acetylardeemin (IFB07188), was previously isolated from the fungi Aspergillus terreus. However, the toxicological features of this natural product have never been investigated. In present study, we described the anticancer activities of IFB07188. We found that
Two "reverse prenyl" hexahydropyrroloindole alkaloids, 5-N-acetylardeemin and 5-N-acetyl-8-demethylardeemin, were evaluated as reversal agents in cells exhibiting a multidrug resistant (MDR) phenotype. These ardeemins (i) reversed drug resistance to vinblastine (VBL) or to taxol as much as 700-fold
Three new alkaloids, 15b-dehydro-5- N-acetylardeemin ( 3), 10-phenyl-[12]-cytochalasins Z16 ( 6) and Z17 ( 7), were characterized from the liquid culture of the endophytic fungus ASPERGILLUS TERREUS IFB-E030 along with six known derivatives, 5- N-acetylardeemin ( 1), 15b- β-hydroxyl-5-
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