Absolute configuration of bioactive expansolides A and B from Aspergillus fumigatus Fresenius

In addition to antafumicins A and B, and cytochalasin, the bioactive, compounds expansolides A and B have been isolated from Aspergillus fumigatus Fresenius. Their absolute configuration has been established by using the modified Mosher's method. The bioactivity of all isolated compounds has been evaluated. (C) 2003 Elsevier Science Ltd. All rights reserved.