Total Synthesis of the Cyclopeptide Alkaloid Paliurine E. Insights into Macrocyclization by Ene−Enamide RCM
作者:Mathieu Toumi、François Couty、Gwilherm Evano
DOI:10.1021/jo702092x
日期:2008.2.1
The totalsynthesis of (−)-paliurine E is described in 14 steps and 11% overall yield. The first successful application of ene−enamide ring-closingmetathesis for macrocyclization serves as the foundation for this synthesis and allowed for a straightforward installation of the challenging cyclic enamide together with the macrocycle. In the course of these synthetic studies, we also found that very