Genome-Based Characterization of Two Prenylation Steps in the Assembly of the Stephacidin and Notoamide Anticancer Agents in a Marine-Derived <i>Aspergillus</i> sp.
作者:Yousong Ding、Jeffrey R. de Wet、James Cavalcoli、Shengying Li、Thomas J. Greshock、Kenneth A. Miller、Jennifer M. Finefield、James D. Sunderhaus、Timothy J. McAfoos、Sachiko Tsukamoto、Robert M. Williams、David H. Sherman
DOI:10.1021/ja1049302
日期:2010.9.15
products belong to a group of prenylated indole alkaloids containing a core bicyclo[2.2.2]diazaoctane ring system. These bioactive fungal secondary metabolites have a range of unusualstructural and stereochemical features but their biosynthesis has remained uncharacterized. Herein, we report the first biosynthetic gene cluster for this class of fungal alkaloids based on whole genome sequencing of a marine-derived
Synthesis of Notoamide J: A Potentially Pivotal Intermediate in the Biosynthesis of Several Prenylated Indole Alkaloids
作者:Jennifer M. Finefield、Robert M. Williams
DOI:10.1021/jo100332c
日期:2010.5.7
An efficient totalsynthesis of notoamide J, a new prenylated indole alkaloid and potentialbiosyntheticprecursor, is described herein. Starting from l-proline and a substituted tryptophan derivative, this synthesis also employs an oxidation and pinacol rearrangement for the formation of the oxindole in the final step.