Transannular <i>O</i>-Heterocyclization: A Useful Tool for the Total Synthesis of Murisolin and 16,19-<i>cis</i>-Murisolin
作者:Peter Persich、Julia Kerschbaumer、Sandra Helling、Barbara Hildmann、Birgit Wibbeling、Günter Haufe
DOI:10.1021/ol302820c
日期:2012.11.16
O-heterocyclization is applied as a key step in a total synthesis. This highly stereoselective and metal-free transformation introduces four stereocenters in one step. It was chosen to be the pivotal step in the synthesis of Murisolin and 16,19-cis-Murisolin, two annonaceous acetogenins. The efficiency of this synthesis is further illustrated by a stereodivergent late-stage separation of both synthetic routes
跨环O-杂环化被用作总合成中的关键步骤。这种高度立体选择性和无金属的转换一步就引入了四个立体中心。它被选为合成Murisolin和16,19-顺式-Murisolin,这两种无水产乙酸原素的关键步骤。两种合成路线的立体发散后期分离进一步说明了这种合成的效率。