T. Neumann et al., Isolation and structure elucidation of new salfredin-type metabolites fromCrucibulum laeve DSM 1653 and DSM 8519, J BASIC MIC, 39(5-6), 1999, pp. 357-363
New salfredin-type chromene and benzofurane metabolites (4-7) were isolated
from submerged cultures of the fungal strains Crucibulum laeve DSM 1653 an
d C. laeve DSM 8519. The structures were elucidated on the basis of UV-VIS
spectroscopic, mass spectrometric and NMR spectroscopic evidence. The new m
etabolites are discussed as intermediates and shunt metabolites of the fung
al aromatic pathway leading to A-, B- and C-type salfredins.