2-Benzazepine Analogues from<scp>d</scp>-Glucose: Synthesis of Chiral<i>cis</i>- and<i>trans</i>-Fused Furo[3,2-<i>c</i>][2]benzazepine Derivatives
作者:Partha Chattopadhyay、Tirtha Pada Majhi、Aniruddha Nandi、Arpita Neogi、Ranjan Mukhopadhyay
DOI:10.1055/s-2005-870012
日期:——
Facile annulation of benzazepines onto furano-sugars has been achieved through Pd-catalyzed intramolecular cyclization. Using diisopropylidene D-glucose as a starting material, the first chiron approach to furobenzazepines in both cis and trans forms selectively introduced a 7-membered azepine ring linearly fused to a sugar nucleus. Cleavage of the sugar ring of the tricyclic derivatives provide a convenient
通过 Pd 催化的分子内环化,已经实现了苯并氮杂在呋喃糖上的轻松环化。使用二异丙叉 D-葡萄糖作为起始材料,第一个 chiron 方法以顺式和反式形式选择性地引入了与糖核线性融合的 7 元氮杂环。三环衍生物的糖环的裂解为进入手性官能化的 2-苯并氮杂,即。15 来自 12a,16 来自 14。