Deprotection of<i>N</i>-Nosyl-α-amino Acids by Using Solid-Supported Mercaptoacetic Acid
作者:Rosaria De Marco、Maria Luisa Di Gioia、Antonella Leggio、Angelo Liguori、Maria Caterina Viscomi
DOI:10.1002/ejoc.200900271
日期:2009.8
has been developed. Mercaptoacetic acid was first protected by the dimethoxytrityl group and then anchored to Wang resin through an ester bond. Deprotection of the thiol function led to resin-supported mercaptoacetic acid, a useful supported thiol reagent that can be used in the polymer-assisted solution-phase removal of nosyl (Ns) groups from the amino function of α-amino acids in peptide synthesis
已开发出一种简单有效的固体负载硫醇合成方法。巯基乙酸首先被二甲氧基三苯甲基保护,然后通过酯键固定在 Wang 树脂上。硫醇官能团的脱保护产生了树脂负载的巯基乙酸,这是一种有用的负载型硫醇试剂,可用于聚合物辅助的溶液相去除肽合成中 α-氨基酸的氨基官能团中的 nosyl (Ns) 基团。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)