Synthesis of Sugar-Lysine Chimera with Integrated <i>gluco</i>-Configured 1,3-Hydroxyamine Motif
作者:Frank Schweizer、Kaidong Zhang、Jialiang Wang、Zhizhi Sun、Dung-Huang Nguyen
DOI:10.1055/s-2007-968002
日期:2007.2
The paper describes the synthesis of glucose-configured sugar-lysine chimeras in which the side chain of lysine is conformationally constrained via incorporation into a d-glucose scaffold. Key step in the synthesis is a high-yielding, reductive ring opening of an exocyclic glucose-derived epoxide to form an α-hydroxyester that can be converted into chimeric sugar-lysine analogues. To demonstrate the use of these novel chimeric sugar-lysine building blocks in peptide coupling, we replaced d-lysine in the antimicrobial dipeptide sequence kW by a d-glucose-d-lysine chimera.
论文描述了葡萄糖配置的糖-赖氨酸嵌合体的合成,其中赖氨酸的侧链通过整合到葡萄糖骨架中而具有构象约束。合成中的关键步骤是高产率的环外葡萄糖衍生的环氧乙烷的还原开环,形成α-羟基酯,可转化为嵌合体糖-赖氨酸类似物。为了展示这些新型嵌合体糖-赖氨酸构建块在肽偶联中的应用,我们用葡萄糖-赖氨酸嵌合体替换了抗微生物二肽序列kW中的D-赖氨酸。