An alternative, short and efficient approach for the preparation of enantiopure secosyrins 1 and 2 is reported here. This uses a d-arabinose derivative as starting material and applies a HWE-IHMA strategy for the construction of the spiro-framework of target molecules.
Efficient synthesis of syringolides, secosyrins, and syributins through a common approach
作者:Anastasia-Aikaterini C. Varvogli、Ioannis N. Karagiannis、Alexandros E. Koumbis
DOI:10.1016/j.tet.2008.11.079
日期:2009.1
A new common synthetic approach toward the elicitors syringolides and their related natural products, secosyrins and syributins, is described here. This uses d-arabinose as starting material and efficiently delivers the targeted compounds through a sequential tandem HWE olefination–lactonization process and an IHMA reaction.