Alkylated Sugar Amino Acids: A New Entry toward Highly Functionalized Dipeptide Isosters
作者:Michael Raunkjær,、Farid El Oualid、Gijs A. van der Marel、Herman S. Overkleeft、Mark Overhand
DOI:10.1021/ol048750r
日期:2004.9.1
[reaction: see text] Novel highly functionalized dipeptide isosters are synthesized via a diastereoselective alkyl/arylation protocol of a glucose-derived (R)-tert-butanesulfinylimine. One of these novel sugar amino acid derivatives, a D-Ala-Ser/Thr isostere, was applied in a peptide synthesis protocol to afford a cyclic tetramer.
[反应:见正文]通过葡萄糖衍生的(R)-叔丁烷亚磺酰亚胺的非对映选择性烷基/芳基化方案合成了新型高度功能化的二肽等排体。将这些新颖的糖氨基酸衍生物之一,D-Ala-Ser / Thr等排物,用于肽合成方案中,以得到环状四聚体。