Highly regioselective alkylation of sugar hydroxyl groups has always been an important challenge in carbohydrate chemistry, especially for the selective alkylation of trans diols, there is no direct and efficient catalytic method so far. A chiral copper catalyzed universal highly site-selective alkylation of trans-diols method is realized. This reaction is performed under mild conditions and has broad substrate scope. The selectivity of the reactions can be controlled by adjusting the copper reagents and the chiral ligands. This method was also applied to the site-selective modification of drugs and natural products.

中文翻译：

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手性铜催化的碳水化合物的位点选择性 O-烷基化

糖羟基的高度区域选择性烷基化一直是碳水化合物化学中的一个重要挑战，尤其是反式二醇的选择性烷基化，目前还没有直接有效的催化方法。实现了一种手性铜催化的反式二醇通用高位点选择性烷基化方法。该反应条件温和，底物范围广。反应的选择性可以通过调节铜试剂和手性配体来控制。该方法也应用于药物和天然产物的位点选择性修饰。