含两对二硫键多肽化合物的高效简便合成
Efficient and Simple Synthesis of Polypeptide Compounds Containing Two Pairs of Disulfide Bonds
采用三苯甲基(Trt)和乙酰氨甲基(Acm)作为半胱氨酸巯基侧链的保护基团, 分别以H2O2和I2为氧化剂或脱保护试剂, 通过优化反应条件实现了“一锅”分步精准合成含有两对二硫键的多肽化合物. 该反应策略在中间步骤无需提纯, 操作简便且反应速度较快, 两对二硫键的构建可在20 min内完成. 研究结果表明, 该反应策略具有广泛的底物适用性. 利用该策略制备了一系列具有生物活性的多肽化合物, 包括含有色氨酸和甲硫氨酸的多肽, 并均获得了较高的总产率.
Using triphenylmethyl(Trt) and acetaminomethyl(Acm) as the protective groups of the cysteine thiol side chain, and H2O2 and I2 as oxidants, respectively, through the optimization of reaction conditions, the "one-pot" step-by-step precise synthesis of polypeptide compounds containing two pairs of disulfide bonds was achieved. This reaction strategy does not require purification of the intermediate products, is easy to operate, and has a fast reaction rate. The two pairs of disulfide bonds in the polypeptide were completely constructed within 20 minutes. The research results show that this reaction strategy has wide substrate applicability. A series of biologically active peptide compounds, including those containing tryptophan and methionine, was obtained by adopting this strategy with high overall yields.
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国家自然科学基金(22373056)
四川轻化工大学652科研创新研究团队项目(SUSE652A014)
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