作者:Guohong Xin、Xiangming Zhu
DOI:10.1016/j.tetlet.2012.05.159
日期:2012.8
A facile and highly stereoselective synthesis of 1-thiotrehalose, that is, α,α-S-linked trehalose, is described. Glycosylation of configurationally pure α-glucosyl thiol 5 with glucosyl trichloroacetimidate 6 or glucosyl thioimidate 9 followed by deprotection afforded 1-thiotrehalose in excellent α-stereoselectivity and high yield. A different synthetic route to the key building block, α-glucosyl thiol
描述了一种简单且高度立体选择性的1-硫代海藻糖,即α,α- S-连接的海藻糖的合成。将构型纯的α-葡糖基硫醇5与葡糖基三氯乙酰亚氨酸酯6或葡糖基硫代亚氨酸酯9进行糖基化,然后脱保护,以优异的α-立体选择性和高收率得到1-硫代海藻糖。在此报告中,还研究了通往关键构件α-葡萄糖基硫醇5的另一种合成途径。