Palladium-Catalyzed Aminocarbonylation in Solid-Phase Peptide Synthesis: A Method for Capping, Cyclization, and Isotope Labeling
作者:Anna Skogh、Stig D. Friis、Troels Skrydstrup、Anja Sandström
DOI:10.1021/acs.orglett.7b01068
日期:2017.6.2
A new synthetic approach for introducing N-capping groups onto peptides attached to a solid support, combining aminocarbonylation under mild conditions using a palladacycle precatalyst and solid-phase peptide synthesis, is reported. The use of a silacarboxylic acid as an in situ CO-releasing molecule allowed the reaction to be performed in a single vial. The method also enables versatile substitution
报道了一种新的合成方法,该方法用于在结合有固相支持物的肽上引入N封端基团,并在适度条件下使用Palladacycle预催化剂和固相肽合成方法将氨基羰基化结合在一起。使用硅烷羧酸作为原位释放CO的分子使得反应可以在单个小瓶中进行。该方法还可以实现侧链的通用取代,侧链至侧链的环化以及修饰肽的选择性[ 13 C]酰基标记。