作者:Jan Pícha、Miloš Buděšínský、Ivona Hančlová、Miloslav Šanda、Pavel Fiedler、Václav Vaněk、Jiří Jiráček
DOI:10.1016/j.tet.2009.05.051
日期:2009.8
In the present work, we describe in detail an efficient solution synthesis of norleucine-derived phosphonopeptides mimicking the peptide sequences Nle-Gly(Ala) and Nle-Gly(Ala)-Val. The most efficient strategy involved use of the benzyl group. The synthesis was achieved through BOP-catalysed coupling of the monobenzyl ester of the N-Cbz-protected phosphonate derivative of norleucine with the hydroxyl
在本工作中,我们详细描述了模仿肽序列Nle-Gly(Ala)和Nle-Gly(Ala)-Val的正亮氨酸衍生的磷酸肽的有效溶液合成。最有效的策略涉及苄基的使用。通过BOP催化的N -Cbz保护的正亮氨酸的膦酸酯衍生物的单苄基酯与衍生化的1-乳酸或乙醇酸的羟基部分的偶联,实现了合成。随后,通过一步钯催化的氢解以良好的产率实现了产物的完全脱保护。我们还制备了Fmoc-Nle-Ψ[PO(OH)O] -CH 2-COOH合成子,并证明该前体是用于固相合成含半胱氨酸的膦酰肽的合适构件。