New verticillin and glisoprenin analogues from gliocladium catenulatum, a mycoparasite of aspergillus flavus sclerotia
Four new compounds (1-4) have been isolated from solid-substrate fermentation cultures of the sclerotial mycoparasite Gliocladium catenulatum. The structures of verticillins D (1), E (2), and F (3) were assigned on the basis of MS and NMR data and chemical derivatization. The structure of glisoprenin F (4) was assigned by analysis of MS and NMR results, and comparison of its spectral data to those of the known compound glisoprenin D (6).
Joshi
BK
Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, and Bioactive Agents Research Unit, Agricultural Research Service, National Center for Agricultural Utilization Research, United States Department of Agriculture, Peoria, Illinois 61.
Gloer
JB
Wicklow
DT