CALOPOROSIDE, A NEW INHIBITOR OF PHOSPHOLIPASES C FROM Caloporus dichrous (Fr.) Ryv.

Abstract

A new salicylic acid derivative, caloporoside, was isolated from fermentations of Caloporus dichrous. Its structure was elucidated by a combination of chemical and spectroscopic methods. Caloporoside exhibits weak antibacterial and antifungal activities and is a quite selective inhibitor of phospholipase C isolated from pig brain (Ki 12, 3μm).