| Abstract: | Dedicated to Professor John C. Sheehan on the occasion of his sixty-fifth birthday. The structures of cyclochlorotine and islanditoxin, cyclic peptides from Penicillium islandicum are reviewed. The peptide A isolated in these laboratories has been identified by gc/ms studies as cyclochlorotine. It is suggested that the structure of islanditoxin [cyclo-(L-dichloroprolyl-D-β-amino-β-phenylpropionyl-L-α-amino-n-butyryl-L-seryl-L-serine)] 1 should now be revised to that of cyclochlorotine, [cyclo-(L-dichloroprolyl-D-β-amino-n-butyryl-L-seryl-L-β-amino-β-phenyl-propionyl-L-serine)] 2 . |
