Evaluation of Antimycobacterial, Antiplasmodial and Cytotoxic Activities of Preussomerins Isolated from the Lichenicolous Fungus Microsphaeropsis sp. BCC 3050

Abstract

A new preussomerin isomer, 3′-O-demethylpreussomerin I, five known preussomerins E - I, and two known deoxypreussomerins, deoxypreussomerin A and bipendensin (palmarumycin C₁₁), were isolated from a lichenicolous fungus Microsphaeropsis sp. BCC 3050. These structures were elucidated by spectroscopic methods, especially 1D- and 2D-NMR. The preussomerins were evaluated for their antimycobacterial and antiplasmodial activities as well as cytotoxicity against KB, BC-1 and vero cell lines.

Microsphaeropsis sp. - lichenicolous fungi - preussomerins - antiplasmodial activity - antimycobacterial activity

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