Cytotoxic Metabolites from the Soil-Derived Fungus Exophiala Pisciphila

Abstract

A new polyketide compound 1 and a new naturally occurring chromone derivative 2, along with two known indole alkaloids 3–4 were characterized from the ethyl acetate extract of a soil-derived fungal strain, Exophiala pisciphila PHF-9. The structures of compounds 1–4 were established by detailed spectroscopic analysis and comparison with literature data. The absolute configuration of 1 was determined by a modified Mosher’s method. Compound 1 exhibited moderate cytotoxicity against A-549, Hela, PANC-28 and BEL-7402 cell lines.

Keywords

• polyketide
• chromone
• indole alkaloid
• Mosher
• Exophiala pisciphila