Synthesis of Novel Enantiopure Amino- and Azidopyran Building Blocks and Their Click Reactions to Multivalent Carbohydrate Mimetics
作者:Hans-Ulrich Reissig、Peter Koóš
DOI:10.1055/s-0043-1763619
日期:2024.3
The synthesis of three enantiopure 1,2-oxazine-derived azides was optimized and the reductions of these compounds to amino alcohols were studied. As a primary aim of this study, the copper-catalyzed (3+2)-cycloadditions of the azides were investigated, employing a series of alkynes, dialkynes, and trialkynes, which afforded the corresponding mono-, di-, and trivalent triazole derivatives with different
优化了三种对映体纯 1,2-恶嗪衍生叠氮化物的合成,并研究了这些化合物向氨基醇的还原。作为本研究的主要目的,研究了叠氮化物的铜催化 (3+2) 环加成反应,使用了一系列炔烃、二炔烃和三炔烃,得到了相应的单价、二价和三价三唑衍生物具有不同的刚性和柔性核心元件。当使用碘化铜在三[(1-苄基-1H- 1,2,3-三唑-4-基)甲基]胺(TBTA)作为配体存在下时,通常能以良好至优异的产率获得预期的点击产物室温下在乙腈中。几种产物经过彻底的氢解反应,产生具有氨基吡喃亚结构的对映体纯化合物,可被视为碳水化合物模拟物。