Copper‐Free Solid‐Phase Synthesis of Triazolo[1,5‐
<i>a</i>
][1,4]diazepin‐6‐ones
作者:Patricia Kriegelsteinová、Barbora Lemrová、Veronika Ručilová、Miroslav Soural
DOI:10.1002/adsc.202001403
日期:2021.2.16
Synthesis of triazolo[1,5‐a][1,4]diazepin‐6‐ones on solid support is reported in this article. Amino acids immobilized on Wang resin were nosylated and alkylated with propargyl alcohol, but‐2‐yn‐1‐ol or different 3‐phenylprop‐2‐yn‐1‐ols using Mitsunobu alkylation conditions. After denosylation, acylation with Fmoc‐azidoalanine yielded linear precursors that were thermally cyclized on resin to give immobilized
本文报道了在固体载体上合成三唑并[1,5- a ] [1,4]二氮杂-6-6。使用Mitsunobu烷基化条件,将固定在Wang树脂上的氨基酸进行炔丙基化,然后用炔丙醇,2--2-炔-1-醇或其他3-苯基丙-2-炔-1-醇进行烷基化。脱腺苷基化后,用Fmoc-叠氮丙氨酸酰化可生成线性前体,将其在树脂上热环化,得到固定的三唑二氮杂酮。从聚合物载体上裂解后,以高的粗纯度和良好的总收率获得目标化合物。此外,该合成方法适用于方便固相合成的寡肽,该寡肽含有三唑并二氮杂吡啶酮部分作为拟肽杂环约束。