Thieme Chemistry Journals Awardees – Where Are They Now? Improved Fmoc Deprotection Methods for the Synthesis of
Thioamide-Containing Peptides and Proteins
作者:D. Szantai-Kis、Christopher Walters、Taylor Barrett、Eileen Hoang、E. Petersson
DOI:10.1055/s-0036-1589027
日期:2017.9
thioamides into peptides and proteins provides a useful tool for a wide range of applications. Current incorporation methods suffer from low yields as well as epimerization. Here, we describe how the use of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) rather than piperidine in fluorenylmethyloxycarbonyl (Fmoc) deprotection reduces epimerization and increases yields of thioamide-containing peptides. Furthermore
硫代酰胺在肽和蛋白质中的位点选择性掺入为广泛的应用提供了有用的工具。目前的掺入方法存在产率低以及差向异构化的问题。在这里,我们描述了在芴甲氧羰基 (Fmoc) 脱保护中使用 1,8-二氮杂双环 [5.4.0] undec-7-ene (DBU) 而不是哌啶如何减少差向异构化并提高含硫代酰胺肽的产量。此外,我们证明在合成含有侧链硫代酰胺的肽时,使用 DBU 可避免副产物的形成。