Rapid generation of macrocycles with natural-product-like side chains by multiple multicomponent macrocyclizations (MiBs)
作者:Daniel G. Rivera、Otilie E. Vercillo、Ludger A. Wessjohann
DOI:10.1039/b715393g
日期:——
A small parallel library of peptoid macrocycles with natural-product-derived side chains of biological importance was produced by Ugi-type multiple multicomponent macrocyclizations including bifunctional building blocks (Ugi-MiBs). Diverse exocyclic elements of high relevance in natural recognition processes, i.e., all functional amino acid residues (e.g., Cys, Arg, His, Trp) and even sugar moieties
通过具有双功能构件(Ugi-MiBs)的Ugi型多重多组分大环化作用,产生了具有天然生物学意义的天然产物侧链的类肽大环化合物的小型平行文库。在自然识别过程中具有高度相关性的各种外环元素,即所有功能性氨基酸残基(例如,Cys,Arg,His,Trp)甚至糖部分,都可以通过一锅法引入不同类型的类肽中大环骨架。这可以通过使用Ugi-MiBs和N-保护的α-氨基酸或羧基官能化的碳水化合物的二胺/二异氰化物组合作为天然产物样环外元素的来源来举例说明。作为多个Ugi反应的酸成分,它们在大环核上以N-酰胺取代基的形式出现。