The Formal Total Synthesis of (±)-Strychnine via a Cobalt-Mediated [2 + 2 + 2]Cycloaddition
作者:Michael J. Eichberg、Rosa L. Dorta、Kai Lamottke、K. Peter C. Vollhardt
DOI:10.1021/ol006131m
日期:2000.8.1
A short, highly convergent totalsynthesis of racemic isostrychnine, and thus strychnine, has been completed. The route involves 14 steps in the longest linear sequence and is highlighted by a cobalt-mediated [2 + 2 + 2]cycloaddition of an alkynylindole nucleus to acetylene.