Studies on lichen substances. Part LXII. Aromatic constituents of the lichen Roccella fuciformis DC. A revised structure for lepraric acid
Abstract
Three aromatic constituents have been isolated from the lichen Roccella fuciformis: lepraric acid (1; R = H), the chromone (2), and ethyl orsellinate. Chemical and spectroscopic evidence is presented for the revised structure (1; R = H) of lepraric acid.