2,3-Dialkylchromones from Mycobiont Cultures of the Lichen Graphis scripta

Abstract

From the cultures of spore-derived mycobionts of lichen Graphis scripta, three chromones, 5-hydroxy-2,3-dimethyl-7-methoxychromone (1), 5hydroxy-3-hydroxymethyl-2-methyl-7-methoxychromone(2) , 5-hydroxy-2-