Cu-Catalyzed Site-Selective C(sp<sup>2</sup>)–H Radical Trifluoromethylation of Tryptophan-Containing Peptides
作者:Itziar Guerrero、Arkaitz Correa
DOI:10.1021/acs.orglett.0c00033
日期:2020.3.6
Site-selective functionalization of C-H bonds within a peptide framework poses a challenging task of paramount synthetic relevance. Herein, we report an operationally simple C(sp2)-H trifluoromethylation of tryptophan (Trp)-containing peptides. This fluorination technique is characterized by its chirality preservation, tolerance of functional groups, and scalability and exhibits chemoselectivity for
肽框架内CH键的位点选择性功能化是最重要的合成相关挑战。在这里,我们报告含有色氨酸(Trp)的肽的操作简单C(sp2)-H三氟甲基化。该氟化技术的特征在于其手性保留,官能团的耐受性和可扩展性,并且相对于其他氨基酸和杂环单元,对Trp残基表现出化学选择性。结果,它代表了后期肽修饰和蛋白质工程的可持续工具。