The cascade radical cyclisation approach to prenylated alkaloids: synthesis of stephacidin A and notoamide B
作者:Nigel S. Simpkins、Ilias Pavlakos、Michael D. Weller、Louise Male
DOI:10.1039/c3ob40979a
日期:——
A strategy for the synthesis of members of the prenylated indole alkaloid family is described, which involves a radical cascade process of an appropriately substituted diketopiperazine (DKP) core structure. Several approaches to the generation of the initial radical were explored, with the most successful involving treatment of a sulfenyl substituted DKP under classical reductive conditions by heating
Isolation, Structure Elucidation, and Biomimetic Total Synthesis of Versicolamide B, and the Isolation of Antipodal (−)-Stephacidin A and (+)-Notoamide B fromAspergillus versicolor NRRL 35600
作者:Thomas J. Greshock、Alan W. Grubbs、Ping Jiao、Donald T. Wicklow、James B. Gloer、Robert M. Williams