One-Pot Stereoselective Synthesis of 2,3-Diglycosylindoles and Tryptophan-C-glycosides via Palladium-Catalyzed C–H Glycosylation of Indole and Tryptophan
作者:Ya-Nan Ding、Ning Li、Yan-Chong Huang、Wei-Yu Shi、Nian Zheng、Cui-Tian Wang、Yang An、Xue-Yuan Liu、Yong-Min Liang
DOI:10.1021/acs.orglett.2c00602
日期:2022.4.1
We described a novel palladium-catalyzed C–H glycosylation of indole or tryptophan for a one-pot stereoselective synthesis of 2,3-diglycosylindoles and tryptophan-C-glycosides. In this strategy, the use of air and base-free and ligand-free conditions provided a highly efficient route to construct C-glycosides. The method can be applied to a wide range of cost-effective and convenient glycosyl chloride
我们描述了一种新颖的钯催化吲哚或色氨酸的 C-H 糖基化,用于单锅立体选择性合成 2,3-二糖基吲哚和色氨酸-C-糖苷。在该策略中,使用无空气、无碱和无配体条件提供了构建 C-糖苷的高效途径。该方法可适用于广泛的成本效益和方便的糖酰氯供体。机理研究表明吲哚2,3-二糖基化序列是C3,然后是C2。