A 12-membered to a strained 11-membered ring: first stereoselective total synthesis of (−)-asteriscunolide C
作者:Rodney A. Fernandes、Vijay P. Chavan
DOI:10.1039/c3cc00316g
日期:——
The first stereoselective total synthesis of (-)-asteriscunolide C has been accomplished in 12 steps in a 16% overall yield. The key step is the conversion of a 12-membered to a strained 11-membered ring with one Z- and two E-double bonds employing a late stage ring-closing metathesis.
(-)-二十二碳五烯内酯C的第一个立体选择性全合成已经完成了12个步骤,总收率为16%。关键步骤是采用后期闭环复分解法将具有一个Z-和两个E-双键的12元环转变为一个应变的11元环。