Synthesis of the Aziridinomitosene Skeleton by Intramolecular Michael Addition of α-Lithioaziridines: An Aromatic Route Featuring Deuterium as a Removable Blocking Group
作者:Edwin Vedejs、Jeremy D. Little
DOI:10.1021/jo030223i
日期:2004.3.1
A convergent synthetic route to the 1,2-aziridinopyrrolo(1,2-a)indole 34 has been developed. Key features of this route include the deuterium kinetic isotope effect to block undesired indole lithiation during tin−lithium exchange from 27a to 30a, the intramolecular Michael addition to generate the enolate 31a, and conversion into 34 by trapping with phenylselenenyl chloride. Reductive cleavage of the