Isolation of farnesylhydroquinones from the basidiomycete Ganoderma pfeifferi

摘要

Two farnesylhydroquinones were isolated from the fruiting bodies of Ganoderma pfeifferi, farnesylhydroquinone (1) and the new compound ganomycin K (2), (5S)-3-[(E)-7,8-dihydroxy-4,8-dimethylnon-3-enyl]-5-(2,5-dihydroxyphenyl)-furan-2(5H)-one. The structures of 1 and 2 were determined on the basis of mass spectrometric and NMR spectroscopic evidence. The antibacterial activity of the isolated compounds was neglectable.