Abstract
Two new sesquiterpenoid aromatic esters, armillarin and armillaridin, have been isolated from the artificially cultured mycelium of Armillaria mellea (Vahl. ex Fr.) Quel. (Tricholometaceae). On the basis of spectral (UV, IR, 1H-NMR, 13C-NMR and MS) analysis and chemical degradation as well as X-ray crystallography, their structures were identified as (1) and (2), respectively.