The Derivatives of Phenylpentanone in Cultured Mycelium of Mycoleptodonoides aitchisonii and the Syntheses of Their Compounds

A new perfumed dihydro-γ-pyrone, 2-phenyl-5,6-dihydro-4H-pyrane-4-one (12) and seven components of C6-C5 phenylpentanone derivatives have been isolated from the neutral essential oil parts in cultured mycelium of Mycoleptodonoides aitchisonii. These compounds were elucidated on the basis of spectral data and syntheses. The derivatives are odorant components. The perfumed components in cultured mycelium were maximized amount at 7 days.