Switching Electrophile Intermediates to Nucleophiles: Michael and Oxa-Diels–Alder Reactions to Afford Polyoxy-Functionalized Piperidine Derivatives with Tetrasubstituted Carbon
作者:Lingaiah Maram、Fujie Tanaka
DOI:10.1021/acs.orglett.0c00735
日期:2020.4.3
Michael, Michael-annulation, and oxa-Diels–Alder reactions of carbohydrate derivatives that afford polyoxy-functionalized piperidine derivatives bearing tetrasubstituted carbon at the 3-position of the piperidine ring are reported. Iminium ions generated from carbohydrate derivatives with amines were converted to enamines in situ, which acted as nucleophiles. As a result, substituents were introduced at
据报道,碳水化合物衍生物的迈克尔,迈克尔环化和氧杂-狄尔斯-阿尔德反应可提供在哌啶环的3位带有四取代碳的多氧官能化哌啶衍生物。由碳水化合物衍生物与胺生成的亚胺离子被原位转化为烯胺,它们充当亲核试剂。结果,在带有多氧基的哌啶的3-位或2-和3-位引入取代基。该策略将对药物发现工作有用。