Kinetic deconjugation: a gateway to the synthesis of Xxx-Gly (E)-alkene dipeptide isosteres
作者:Arnaud Proteau-Gagné、Jean-François Nadon、Sylvain Bernard、Brigitte Guérin、Louis Gendron、Yves L. Dory
DOI:10.1016/j.tetlet.2011.09.136
日期:2011.12
A new method for the preparation of Xxx-Gly (E)-alkene dipeptide isosteres (EADIs), using LDA deprotonation followed by 1 N HCl quench, was explored. The method, named kinetic deconjugation, enabled the synthesis of Tyr-Gly, Gly-Gly, Ser-Gly, Pro-Gly, and Phe-Gly EADIs, as well as one Tyr-Gly trisubstituted alkene dipeptide isostere (TADI). Overall, this method, based on commercially available materials
探索了一种新的制备Xxx-Gly(E)-烯烃二肽等排物(EADIs)的方法,该方法使用LDA脱质子化,然后用1 N HCl淬灭。该方法称为动力学解偶联,能够合成Tyr-Gly,Gly-Gly,Ser-Gly,Pro-Gly和Phe-Gly EADIs,以及一种Tyr-Gly三取代烯烃二肽等排物(TADI)。总体而言,该方法基于可商购的材料,可实现高收率,仅需很少的合成步骤,并且可以在多种EADI的合成中达到克级。