Approach to <i>cis</i>-Phlegmarine Alkaloids via Stereodivergent Reduction: Total Synthesis of (+)-Serratezomine E and Putative Structure of (−)-Huperzine N
作者:Caroline Bosch、Béla Fiser、Enrique Gómez-Bengoa、Ben Bradshaw、Josep Bonjoch
DOI:10.1021/acs.orglett.5b02581
日期:2015.10.16
group of alkaloids is presented, leading to the first synthesis of serratezomine E (1) as well as the putative structure of huperzine N (2). A contrasteric hydrogenation method was developed based on the use of Wilkinson’s catalyst, which allowed the facial selectivity of standard hydrogenation to be completely overturned. Calculations were performed to determine the mechanism, and structures for huperzines
提出了一个统一的策略的生物碱的顺式-phmarmarine组合成,导致首次合成的serratezomine E(1)以及石杉碱N(2)的假定的结构。基于威尔金森催化剂的使用,开发了一种对比加氢方法,该方法可以完全推翻标准加氢的面部选择性。进行计算以确定机理,并重新分配了石杉基甲和氮的结构。