Efficient synthesis of trypsin inhibitor SFTI-1 via intramolecular ligation of peptide hydrazide
作者:Yi-Qun Chen、Chen-Chen Chen、Yao He、Mu Yu、Lin Xu、Chang-lin Tian、Qing-Xiang Guo、Jing Shi、Min Zhang、Yi-Ming Li
DOI:10.1016/j.tetlet.2014.03.093
日期:2014.4
Cyclic peptide trypsin inhibitor SFTI-1 was synthesized via intramolecular ligation of a linear peptide hydrazide with high yield. This cyclization strategy did not cause epimerization at the C-terminal Arg residue. CD spectrum and NMR spectroscopy analysis demonstrated that well-folded SFTI-1 could be obtained via standard oxidative folding process. Thus, we present a simple and cost-efficient strategy
通过线性肽酰肼的分子内连接以高产率合成环肽胰蛋白酶抑制剂SFTI-1。该环化策略未在C末端Arg残基引起差向异构。CD谱和NMR谱分析表明,可以通过标准的氧化折叠过程获得折叠良好的SFTI-1。因此,我们提出了一种简单且具有成本效益的SFTI-1合成策略。