Synthesis of new ribosylated Asn building blocks as useful tools for glycopeptide and glycoprotein synthesis
作者:M. Angeles Bonache、Francesca Nuti、Alexandra Le Chevalier Isaad、Feliciana Real-Fernández、Mario Chelli、Paolo Rovero、Anna M. Papini
DOI:10.1016/j.tetlet.2009.04.124
日期:2009.7
We performed the firstsynthesis of new Asn derivatives bearing α- or β-ribose as pure anomers, linked by an N-glycosidic bond, on the sidechain of the Asn residue orthogonally protected for Fmoc/tBu SPPS, by an efficient five-step strategy with a global yield of 73% starting from d-ribose. These building blocks are obtained in a large scale and can be useful tools for glycopeptide and glycoproteins
我们进行了新的Asn衍生物的首次合成,该衍生物带有α-或β-核糖为纯异构体,并通过N-糖苷键连接在通过Fmoc / t Bu SPPS正交保护的Asn残基的侧链上,通过有效的五-从d-核糖开始的分步策略,全球收率达73%。这些构件是大规模获得的,并且可以是用于糖肽和糖蛋白合成的有用工具。