作者:Faïza Diaba、Climent Pujol-Grau、Agustín Martínez-Laporta、Israel Fernández、Josep Bonjoch
DOI:10.1021/ol503586d
日期:2015.2.6
Synthesis of the tetracyclic cores of madangamines D–F was achieved, featuring a reductive radical process from an ethoxycarbonyldichloroacetamide to build the morphan nucleus, a Mitsunobu-type aminocyclization toward the common diazatricyclic intermediate, and ring-closing metathesis reactions for the macrocyclization step leading to the 13- to 15-membered rings.
madangamines D–F的四环核的合成得以实现,其特征在于乙氧基羰基二氯乙酰胺的还原自由基过程,以形成吗啡核,Mitsunobu型氨基环化反应形成常见的二氮三环中间体,以及大环化步骤导致的闭环易位反应,从而导致13至15元环。