Eriodermin, a dichlorodepsidone from the lichen erioderma physcioides—crystal structure analysis

Abstract The structure of eriodermin, a depsidone from the lichen Erioderma physcioides , has been established as 4-formyl-2,7-dichloro-3-hydroxy-8-methoxy- 1,6-dimethyldi-benzo[b,e][1,4]dioxepin-11-one by X-ray analysis.