2524-49-4Relevant articles and documents
A Peptide Backbone Stapling Strategy Enabled by the Multicomponent Incorporation of Amide N-Substituents
Ricardo, Manuel G.,Marrrero, Javiel F.,Valdés, Oscar,Rivera, Daniel G.,Wessjohann, Ludger A.
supporting information, p. 769 - 774 (2019/01/04)
The multicomponent backbone N-modification of peptides on solid-phase is presented as a powerful and general method to enable peptide stapling at the backbone instead of the side chains. This work shows that a variety of functionalized N-substituents suitable for backbone stapling can be readily introduced by means of on-resin Ugi multicomponent reactions conducted during solid-phase peptide synthesis. Diverse macrocyclization chemistries were implemented with such backbone N-substituents, including the ring-closing metathesis, lactamization, and thiol alkylation. The backbone N-modification method was also applied to the synthesis of α-helical peptides by linking N-substituents to the peptide N-terminus, thus featuring hydrogen-bond surrogate structures. Overall, the strategy proves useful for peptide backbone macrocyclization approaches that show promise in peptide drug discovery.
