A Model Study towards a Conceptually New Synthetic Entry into the Seco- and Heteroyohimbine Alkaloid Families
作者:Thomas Vogelsang、Hans-Jürg Borschberg
DOI:10.1002/hlca.200390303
日期:2003.11
A model study is presented that paves the way to a new and flexible synthetic approach towards the seco- and heteroyohimbine alkaloid class. The key step involves a highly diastereoselective Cope rearrangement of an (E,E)-azacyclodeca-3,7-diene grafted onto a 3-ethylindole moiety to furnish a trans-3,4-divinylpiperidine derivative in 83% yield.
提出了一个模型研究,为山核桃和异育亨宾生物碱类别的新型灵活合成方法铺平了道路。关键步骤涉及高度非对映选择性Cope重排,将(E,E)-氮杂环癸3,7-二烯接枝到3-乙基吲哚部分上,以83%的产率提供反式-3,4-二乙烯基哌啶衍生物。