作者:Hans A. V. Kistemaker、Gerbrand J. van der Heden van Noort、Herman S. Overkleeft、Gijsbert A. van der Marel、Dmitri V. Filippov
DOI:10.1021/ol400929c
日期:2013.5.3
properties of ribofuranosyl N-phenyltrifluoroacetimidates toward carboxamide side chains of asparagine and glutamine were investigated. Conditions were found that promote nearly exclusive formation of the α-anomerically configured N-glycosides. The strategy allows for the synthesis of Fmoc-amino acids suitably modified for the preparation of ADP-ribosylated peptides. Furthermore, ribosylation of serine with
研究了核呋喃糖基N-苯基三氟乙酰亚氨酸酯对天冬酰胺和谷氨酰胺羧酰胺侧链的糖基化特性。发现条件促进α-异构型的N-糖苷的几乎排他的形成。该策略允许合成经适当修饰以制备ADP-核糖基化肽的Fmoc-氨基酸。此外,用这些供体对丝氨酸的核糖基化证明是完全α-选择性的,并且首次合成了天然存在的用于聚-ADP-核糖基化的位点α-核糖基化的谷氨酸和天冬氨酸。