作者:Pitambar Patel、C. V. Ramana
DOI:10.1021/jo302198v
日期:2012.12.7
A modular total synthesis of (−)-isatisine A is described in which four consecutive metal-mediated transformations have been employed at the final stage. These include [Pd]-catalyzed Sonogashira coupling, [Pd]-catalyzed nitroalkyne cycloisomerization leading to isatogens, and addition of indoles to isatogens using InCl3- and [Rh]-catalyzed oxidative N-heterocyclization of amino alcohol to form the
描述了(-)-艾迪西汀A的模块化全合成,其中在最后阶段采用了四个连续的金属介导的转化。这些包括[Pd]催化的Sonogashira偶联,[Pd]催化的导致炔烃的硝基炔环异构化,以及使用InCl 3-和[Rh]催化的氨基醇的氧化N-杂环形成氨基酰胺键,将吲哚加到异构体中。除这些之外,还已经使用催化或化学计量的金属/金属基试剂以选择性方式进行保护基的去除。