Synthesis of<sup>2</sup>H-Labelled α-Azidoisobutyryl Chloride (D<sub>6</sub>-Azib-Cl) as<sup>2</sup>H<sub>6</sub>-Aib Equivalent Building Block in Peptide Synthesis
作者:Norbert Sewald、Sven Weigelt
DOI:10.1055/s-2004-817748
日期:——
A new synthesis of 2H-labelled α-azidoisobutyryl chloride for application as a building block in peptide synthesis is presented. Starting from readily available acetone cyanohydrin-D6, an efficient synthetic protocol provides the deuterated target molecule α-azidoisobutyryl chloride (D6-Azib-Cl) in good yield with very high deuterium incorporation. This compound represents an activated, N-protected equivalent of 2H-labelled α-aminoisobutyric acid (D6-Aib), which will be especially useful for NMR investigations on peptides with a high Aib content.
提出了一种 2H 标记的 α-叠氮基异丁酰氯的新合成方法,可用作肽合成的基础材料。从容易获得的丙酮氰醇-D6 开始,一种高效的合成方案以良好的收率和非常高的氘掺入量提供了氘化目标分子α-叠氮基异丁酰氯 (D6-Azib-Cl)。该化合物代表 2H 标记的 α-氨基异丁酸 (D6-Aib) 的活化、N 保护等价物,这对于高 Aib 含量的肽的 NMR 研究特别有用。