First Enantioselective Synthesis
of a Hydroxyindolizidine Alkaloid from the Ant <i>Myrmicaria
melanogaster</i>
作者:Naoki Toyooka、Dejun Zhou、Hideo Nemoto、Yasuhiro Tezuka、Shigetoshi Kadota、Tappey Jones、H. Garraffo、Thomas Spande、John Daly
DOI:10.1055/s-2008-1078502
日期:——
The first enantioselective synthesis of the recently reported ant alkaloid 1 has been achieved starting from commercially available lactam 3 in seven steps and 25% overall yield. The proposed structure of the natural product was confirmed by comparison with synthetic 1 and its absolute configuration established as 3S,5R,8S,9S.
最近报道的蚂蚁生物碱 1 的首次对映选择性合成是从市售的内酰胺 3 开始分七个步骤实现的,总产率为 25%。天然产物的拟议结构通过与合成 1 的比较得到证实,其绝对构型确定为 3S、5R、8S、9S。