Lentinellic acid, a biologically active protoilludane derivative from lentinellus species (basidiomycetes) [1]

Abstract

A new antimicrobial and cytotoxic sesquiterpenoid, lentinellic acid (1), has been isolated from submerged cultures of Lentinellus ursinus and L. omphalodes. The structure of the antibiotic was elucidated by spectroscopic methods and a single crystal X-ray analysis. 1 may be formed biogenetically by condensation of a protoilludane aldehyde 4 with a malonate unit. © 1988, Walter de Gruyter. All rights reserved.