作者:Fernando Albericio、Klaus Burger、Ksenia Pumpor、Jan Spengler、Alois Haas
DOI:10.1055/s-2004-822341
日期:——
Incorporation of α-mercapto acid units into the backbone of potential drug candidates improves the metal ion complexing properties. So far, only the methodology for the N-terminal incorporation of mercapto acid units into peptides has been described. Now, we report on a modified strategy for the incorporation of the α-mercapto acid unit into any position of a peptide backbone starting from hexafluoroacetone-protected thiomalic acid. Concomitantly with the incorporation of the α-mercapto unit the direction of the peptide chain is inverted.
将α巯基酸单元整合到潜在药物候选分子的骨架中,能改善其金属离子配位性质。迄今为止,仅有关于巯基酸单元在N端整合进肽链的方法被描述过。现在,我们报告了一种改良策略,从六氟丙酮保护的硫代苹果酸开始,将α巯基酸单元整合到任意位置的肽骨架中。与此同时,随着α巯基单元的整合,肽链的方向也发生了反转。