作者:Shino Manabe、Tomoyuki Sugioka、Yukishige Ito
DOI:10.1016/j.tetlet.2006.11.143
日期:2007.1
Preparation of peptide thioester is essential for native chemical ligation and block condensation. Our novel methodology involves conversion of the carboxylic acid of a peptide into a thioester using p-toluenesulfonyl isocyanate, followed by alkylation, then thiol substitution. Our methodology can also be used for the preparation of glycopeptide thioesters. Furthermore, it is possible to carry out the reaction as a sequential peptide chemical ligation. (c) 2006 Elsevier Ltd. All rights reserved.