Carbohydrate-derived conformationally restricted bicyclic dipeptides as potential hetero foldamer building blocks
作者:Veera V.E. Ramesh、Vedavati G. Puranik、Gangadhar J. Sanjayan
DOI:10.1016/j.tetasy.2012.08.007
日期:2012.10
precursors, hetero foldamer building blocks featuring diverse amino acid side chains and stereochemistry have been accessed via a multi-step synthetic protocol. These conformationally restricted bicyclic dipeptide building blocks are characterized by a constrained β-lactam ring fused with a pyrrolidine ring carrying a hydroxyethylamine isostere (HEA) on the backbone. These building blocks offer the possibility
从碳水化合物前体开始,已通过多步合成方案获得了具有多种氨基酸侧链和立体化学特征的杂合折叠结构单元。这些构象受限的双环二肽构件的特征在于受约束的β-内酰胺环与在主链上带有羟乙基胺等排物(HEA)的吡咯烷环稠合。这些构建块提供了开发具有有趣结构结构的折叠器的可能性,这些折叠结构明显不同于经典观察到的结构。此外,这种异质结构块具有潜力,可利用多种骨架构型和结构体系来增加可用于折叠架设计的构型空间。