作者:Jun Shimokawa、Takaaki Harada、Satoshi Yokoshima、Tohru Fukuyama
DOI:10.1021/ja208617c
日期:2011.11.9
substrate was successfully applied to assemble the spiro-quaternary carbon center connected to the bicyclic seven-membered core structure. A one-pot isomerization reaction of the α,β-unsaturated aldehyde to the saturated ester via the TMSCN-DBU reagent combination allowed a facile diastereoselective introduction of the latent nitrogen functionality of the unique azetidine moiety.
第一次全合成gelsemoxonine (1) 已经完成。高度官能化底物的二乙烯基环丙烷-环庚二烯重排成功应用于组装与双环七元核心结构相连的螺-季碳中心。通过 TMSCN-DBU 试剂组合,α,β-不饱和醛与饱和酯的一锅异构化反应允许轻松非对映选择性引入独特氮杂环丁烷部分的潜在氮官能团。