作者:Sammy E. Metobo、Jie Xu、Oliver L. Saunders、Thomas Butler、Evangelos Aktoudianakis、Aesop Cho、Choung U. Kim
DOI:10.1016/j.tetlet.2011.11.055
日期:2012.2
Several 1′-substituted analogs of Tubercidin C-nucleosides were prepared using a highly convergent synthesis. Good to high diastereoselectivity was achieved using a variety of nucleophiles targeting the 1′-position. The source for this stereoselectivity is herein proposed. It is thought to be attributed to a temperature-dependent chelation of the incoming nucleophile to either the 2′- or 3′-benzyloxy
使用高度收敛的合成方法制备了结核菌素C-核苷的几种1'-取代的类似物。使用多种靶向1'-位置的亲核试剂,可以实现良好的非对映选择性。本文提出了这种立体选择性的来源。认为这归因于进入的亲核试剂与核糖核心的2'-或3'-苄氧基醚的温度依赖性螯合。