PHENOLICS, DEPSIDES AND TRITERPENES FROM THE CHILEAN LICHEN PSEUDOCYPHELLARIA NUDATA

The lichen Pseudocyphellaria nudata is a species endemic to southern South America. From the lichen tallus, methyl orsellinate, 2-methoxy-3,6-dimethyl-4-hydroxybenzaldehyde, methyl-evernate, tenuiorin, hopan-6ß,22-diol and hopan-6α,7ß,22-triol were isolated and identified as the main lichen constituents. This is the first report of the occurrence of 2-methoxy-3,6-dimethyl-4-hydroxybenzaldehyde in lichens