New acetylenic acids and derivatives from the Basidiomycete Craterellus lutescens (Cantharellaceae)

Abstract

Five new acetylenic acid analogues, craterellynes A-E (1-5), together with three known compounds (6-8), were isolated from the fruiting bodies of Craterellus lutescens. Their structures were elucidated on the basis of spectroscopic and chemical means. The absolute configurations of 1-6 were determined by the modified Mosher method.

Keywords: Absolute configuration; Acetylenic acid; Craterellus lutescens.