3-O-Demethylschizopeltic Acid, a New Dibenzofuran From the Lichen Roccella hypomecha

Abstract

The new dibenzofuran 3-O-demethylschizopeltic acid (2-methyl hydrogen 3-hydroxy-9-methoxy-1,7-dimethyldibenzofuran-2,6-dicarboxylate) (1) has been isolated from the lichen Roccella hypomecha, and the structure established by synthesis from schizopeltic acid (2).