Über das Vorkommen von Muscaflavin bei Hygroeyben (Agaricales) und seine Dihydro- azepin-Struktur 1,2 / Isolation of Muscaflavin from Hygrocybe Species (Agaricales) and Its Dihydroazepine Structure

Abstract

Sporophores of Hygrocybe species (Agaricales) contain muscaflavin, a pigment recently isolated from Amanita muscaria. Spectroscopic and chemical evidence for its dihydroazepine structure 5a is presented, indicating a close biogenetic relationship to betalamic acid 6a. The chemical nature of the water soluble pigments of Hygrocybe is dis­ cussed